/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.line1237.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-03 14:27:06,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-03 14:27:06,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-03 14:27:06,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-03 14:27:06,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-03 14:27:06,816 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-03 14:27:06,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-03 14:27:06,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-03 14:27:06,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-03 14:27:06,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-03 14:27:06,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-03 14:27:06,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-03 14:27:06,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-03 14:27:06,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-03 14:27:06,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-03 14:27:06,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-03 14:27:06,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-03 14:27:06,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-03 14:27:06,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-03 14:27:06,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-03 14:27:06,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-03 14:27:06,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-03 14:27:06,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-03 14:27:06,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-03 14:27:06,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-03 14:27:06,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-03 14:27:06,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-03 14:27:06,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-03 14:27:06,859 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-03 14:27:06,887 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-03 14:27:06,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-03 14:27:06,888 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-03 14:27:06,888 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-03 14:27:06,889 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-03 14:27:06,889 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-03 14:27:06,890 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-03 14:27:06,890 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-03 14:27:06,890 INFO L138 SettingsManager]: * Use SBE=true [2022-10-03 14:27:06,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-03 14:27:06,891 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-03 14:27:06,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-03 14:27:06,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-03 14:27:06,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-03 14:27:06,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-03 14:27:06,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-03 14:27:06,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-03 14:27:06,892 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-03 14:27:06,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-03 14:27:06,892 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-03 14:27:06,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-03 14:27:06,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-03 14:27:06,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-03 14:27:06,892 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-03 14:27:06,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-03 14:27:06,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 14:27:06,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-03 14:27:06,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-03 14:27:06,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-03 14:27:06,893 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-03 14:27:06,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-03 14:27:06,893 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-03 14:27:06,894 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-03 14:27:06,894 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-03 14:27:06,894 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-03 14:27:06,894 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-03 14:27:06,894 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-03 14:27:06,894 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-03 14:27:06,894 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-03 14:27:07,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-03 14:27:07,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-03 14:27:07,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-03 14:27:07,110 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-03 14:27:07,111 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-03 14:27:07,113 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo-bug_1w1r.line1237.bpl [2022-10-03 14:27:07,113 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo-bug_1w1r.line1237.bpl' [2022-10-03 14:27:07,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-03 14:27:07,202 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-03 14:27:07,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-03 14:27:07,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-03 14:27:07,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-03 14:27:07,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1237.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:27:07" (1/1) ... [2022-10-03 14:27:07,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1237.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:27:07" (1/1) ... [2022-10-03 14:27:07,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1237.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:27:07" (1/1) ... [2022-10-03 14:27:07,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1237.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:27:07" (1/1) ... [2022-10-03 14:27:07,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1237.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:27:07" (1/1) ... [2022-10-03 14:27:07,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1237.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:27:07" (1/1) ... [2022-10-03 14:27:07,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1237.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:27:07" (1/1) ... [2022-10-03 14:27:07,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-03 14:27:07,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-03 14:27:07,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-03 14:27:07,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-03 14:27:07,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo-bug_1w1r.line1237.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:27:07" (1/1) ... [2022-10-03 14:27:07,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 14:27:07,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:27:07,397 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 14:27:07,404 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 14:27:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-10-03 14:27:07,439 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-10-03 14:27:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-03 14:27:07,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-03 14:27:07,441 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 14:27:07,674 INFO L234 CfgBuilder]: Building ICFG [2022-10-03 14:27:07,675 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-03 14:27:08,829 INFO L275 CfgBuilder]: Performing block encoding [2022-10-03 14:27:08,846 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-03 14:27:08,846 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-03 14:27:08,849 INFO L202 PluginConnector]: Adding new model divinefifo-bug_1w1r.line1237.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:27:08 BoogieIcfgContainer [2022-10-03 14:27:08,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-03 14:27:08,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-03 14:27:08,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-03 14:27:08,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-03 14:27:08,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1237.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:27:07" (1/2) ... [2022-10-03 14:27:08,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aaa1fa8 and model type divinefifo-bug_1w1r.line1237.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:27:08, skipping insertion in model container [2022-10-03 14:27:08,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1237.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:27:08" (2/2) ... [2022-10-03 14:27:08,862 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo-bug_1w1r.line1237.bpl [2022-10-03 14:27:08,869 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-03 14:27:08,878 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-03 14:27:08,878 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-03 14:27:08,878 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-03 14:27:08,998 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-03 14:27:09,070 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 14:27:09,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 14:27:09,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:27:09,076 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 14:27:09,078 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 14:27:09,122 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 14:27:09,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-03 14:27:09,147 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;@791c8acc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 14:27:09,148 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 14:27:09,536 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:27:09,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:27:09,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1262335764, now seen corresponding path program 1 times [2022-10-03 14:27:09,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:27:09,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272564301] [2022-10-03 14:27:09,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:27:09,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:27:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:27:10,054 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 14:27:10,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:27:10,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272564301] [2022-10-03 14:27:10,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272564301] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 14:27:10,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 14:27:10,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-03 14:27:10,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408084082] [2022-10-03 14:27:10,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 14:27:10,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-03 14:27:10,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:27:10,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-03 14:27:10,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-03 14:27:10,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:27:10,086 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:27:10,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 226.5) internal successors, (453), 2 states have internal predecessors, (453), 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 14:27:10,088 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:27:10,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:27:10,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-03 14:27:10,310 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:27:10,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:27:10,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1033485819, now seen corresponding path program 1 times [2022-10-03 14:27:10,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:27:10,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740008119] [2022-10-03 14:27:10,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:27:10,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:27:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:27:10,886 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 14:27:10,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:27:10,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740008119] [2022-10-03 14:27:10,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740008119] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 14:27:10,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 14:27:10,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-10-03 14:27:10,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825306454] [2022-10-03 14:27:10,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 14:27:10,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-03 14:27:10,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:27:10,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-03 14:27:10,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-10-03 14:27:10,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:27:10,891 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:27:10,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 47.27272727272727) internal successors, (520), 12 states have internal predecessors, (520), 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 14:27:10,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:27:10,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:27:12,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:27:12,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-03 14:27:12,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-03 14:27:12,257 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:27:12,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:27:12,259 INFO L85 PathProgramCache]: Analyzing trace with hash 402882664, now seen corresponding path program 1 times [2022-10-03 14:27:12,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:27:12,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129376364] [2022-10-03 14:27:12,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:27:12,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:27:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:27:14,260 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 14:27:14,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:27:14,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129376364] [2022-10-03 14:27:14,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129376364] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 14:27:14,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337653032] [2022-10-03 14:27:14,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:27:14,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:27:14,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:27:14,263 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 14:27:14,264 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 14:27:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:27:14,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 2051 conjuncts, 201 conjunts are in the unsatisfiable core [2022-10-03 14:27:14,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 14:27:14,949 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 14:27:15,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:27:15,332 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 14:27:16,018 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-10-03 14:27:16,019 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 18 [2022-10-03 14:27:20,676 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 0 case distinctions, treesize of input 37 treesize of output 29 [2022-10-03 14:27:20,699 INFO L356 Elim1Store]: treesize reduction 24, result has 45.5 percent of original size [2022-10-03 14:27:20,699 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 32 [2022-10-03 14:27:26,139 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 14:27:26,140 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 54 treesize of output 66 [2022-10-03 14:27:26,170 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 15 treesize of output 7 [2022-10-03 14:27:26,505 INFO L356 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-10-03 14:27:26,506 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2022-10-03 14:27:26,688 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 14:27:26,705 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 14:27:26,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 14:27:28,674 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 14:27:28,674 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 14:27:30,884 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 14:27:30,885 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 32 [2022-10-03 14:27:36,786 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 14:27:36,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337653032] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 14:27:36,787 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 14:27:36,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 71, 52] total 156 [2022-10-03 14:27:36,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521155226] [2022-10-03 14:27:36,788 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 14:27:36,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 157 states [2022-10-03 14:27:36,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:27:36,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2022-10-03 14:27:36,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1521, Invalid=22970, Unknown=1, NotChecked=0, Total=24492 [2022-10-03 14:27:36,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:27:36,807 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:27:36,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 157 states, 156 states have (on average 14.724358974358974) internal successors, (2297), 157 states have internal predecessors, (2297), 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 14:27:36,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:27:36,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-10-03 14:27:36,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:28:01,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:28:01,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-03 14:28:01,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2022-10-03 14:28:01,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-03 14:28:02,159 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 14:28:02,160 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:28:02,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:28:02,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1697514315, now seen corresponding path program 2 times [2022-10-03 14:28:02,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:28:02,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927542302] [2022-10-03 14:28:02,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:28:02,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:28:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:28:04,137 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 28 proven. 93 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2022-10-03 14:28:04,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:28:04,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927542302] [2022-10-03 14:28:04,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927542302] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 14:28:04,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766253441] [2022-10-03 14:28:04,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-03 14:28:04,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:28:04,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:28:04,148 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 14:28:04,151 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 14:28:04,512 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-03 14:28:04,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-03 14:28:04,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 286 conjunts are in the unsatisfiable core [2022-10-03 14:28:04,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 14:28:04,804 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 14:28:05,324 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 13 treesize of output 9 [2022-10-03 14:28:05,330 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 13 treesize of output 9 [2022-10-03 14:28:05,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:28:05,631 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 23 treesize of output 22 [2022-10-03 14:28:05,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:28:05,643 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 14:28:05,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:28:05,874 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 14:28:05,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:28:05,882 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 23 treesize of output 22 [2022-10-03 14:28:06,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:28:06,250 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 14 treesize of output 16 [2022-10-03 14:28:06,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:28:06,255 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 14 treesize of output 16 [2022-10-03 14:28:06,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:28:06,510 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 19 treesize of output 18 [2022-10-03 14:28:06,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:28:06,519 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 23 treesize of output 22 [2022-10-03 14:28:08,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:28:08,568 INFO L356 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-10-03 14:28:08,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2022-10-03 14:28:09,080 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-10-03 14:28:09,081 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 2 case distinctions, treesize of input 50 treesize of output 50 [2022-10-03 14:28:09,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:28:09,093 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2022-10-03 14:28:15,121 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-10-03 14:28:15,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-03 14:28:15,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766253441] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 14:28:15,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-03 14:28:15,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [72] imperfect sequences [50] total 121 [2022-10-03 14:28:15,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675684773] [2022-10-03 14:28:15,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 14:28:15,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-10-03 14:28:15,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:28:15,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-10-03 14:28:15,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=408, Invalid=14112, Unknown=0, NotChecked=0, Total=14520 [2022-10-03 14:28:15,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:28:15,128 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:28:15,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 11.402777777777779) internal successors, (821), 72 states have internal predecessors, (821), 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 14:28:15,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:28:15,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-10-03 14:28:15,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2022-10-03 14:28:15,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:29:01,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:29:01,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-03 14:29:01,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2022-10-03 14:29:01,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-10-03 14:29:01,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-03 14:29:01,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:29:01,840 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:29:01,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:29:01,840 INFO L85 PathProgramCache]: Analyzing trace with hash -4547089, now seen corresponding path program 1 times [2022-10-03 14:29:01,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:29:01,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084714805] [2022-10-03 14:29:01,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:29:01,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:29:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:29:03,617 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 28 proven. 93 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2022-10-03 14:29:03,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:29:03,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084714805] [2022-10-03 14:29:03,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084714805] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 14:29:03,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683458625] [2022-10-03 14:29:03,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:29:03,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:29:03,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:29:03,620 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 14:29:03,623 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 14:29:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:29:04,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 2663 conjuncts, 134 conjunts are in the unsatisfiable core [2022-10-03 14:29:04,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 14:29:04,242 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 14:29:04,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:29:04,588 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 14:29:05,186 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-03 14:29:05,186 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 14:29:05,245 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 14:29:07,672 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 14:29:08,998 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-03 14:29:09,003 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 15 treesize of output 7 [2022-10-03 14:29:09,214 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-03 14:29:09,215 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 14:29:09,347 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 14:29:09,362 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 77 proven. 111 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-10-03 14:29:09,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 14:29:09,949 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 14:29:09,949 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 30 treesize of output 33 [2022-10-03 14:29:10,448 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 14:29:10,449 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 36 treesize of output 40 [2022-10-03 14:29:11,059 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 63 treesize of output 55 [2022-10-03 14:29:12,604 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-10-03 14:29:12,604 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 13 treesize of output 12 [2022-10-03 14:29:15,259 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.allocOnHeap_#res#1.base| Int)) (or (forall ((v_ArrVal_610 Int) (v_ArrVal_609 Int) (|ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| Int)) (or (= |ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| |c_ULTIMATE.start_fifo_init_~self#1.base|) (< (select (store (store |c_ULTIMATE.start_#Ultimate.allocOnHeap_old_#length#1| |ULTIMATE.start_#Ultimate.allocOnHeap_#res#1.base| v_ArrVal_609) |ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| v_ArrVal_610) |c_ULTIMATE.start_main_~#q~1#1.base|) 20))) (not (< |ULTIMATE.start_#Ultimate.allocOnHeap_#res#1.base| |c_#StackHeapBarrier|)))) is different from false [2022-10-03 14:29:53,401 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-03 14:29:53,541 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-10-03 14:29:53,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683458625] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 14:29:53,541 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 14:29:53,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 53, 42] total 127 [2022-10-03 14:29:53,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139178667] [2022-10-03 14:29:53,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 14:29:53,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2022-10-03 14:29:53,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:29:53,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2022-10-03 14:29:53,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=677, Invalid=15318, Unknown=11, NotChecked=250, Total=16256 [2022-10-03 14:29:53,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:29:53,549 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:29:53,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 127 states have (on average 20.031496062992126) internal successors, (2544), 128 states have internal predecessors, (2544), 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 14:29:53,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:29:53,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-10-03 14:29:53,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2022-10-03 14:29:53,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-10-03 14:29:53,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:30:16,412 WARN L233 SmtUtils]: Spent 22.30s on a formula simplification. DAG size of input: 60 DAG size of output: 49 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-03 14:30:28,626 WARN L233 SmtUtils]: Spent 12.13s on a formula simplification. DAG size of input: 40 DAG size of output: 37 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-03 14:30:57,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:30:57,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-03 14:30:57,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2022-10-03 14:30:57,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-10-03 14:30:57,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-10-03 14:30:57,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-03 14:30:57,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:30:57,907 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:30:57,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:30:57,907 INFO L85 PathProgramCache]: Analyzing trace with hash -2134575031, now seen corresponding path program 1 times [2022-10-03 14:30:57,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:30:57,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198882262] [2022-10-03 14:30:57,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:30:57,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:30:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:31:02,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1880 backedges. 366 proven. 44 refuted. 0 times theorem prover too weak. 1470 trivial. 0 not checked. [2022-10-03 14:31:02,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:31:02,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198882262] [2022-10-03 14:31:02,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198882262] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 14:31:02,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758339463] [2022-10-03 14:31:02,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:31:02,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:31:02,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:31:02,700 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 14:31:02,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-03 14:31:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:31:03,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 4290 conjuncts, 375 conjunts are in the unsatisfiable core [2022-10-03 14:31:03,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 14:31:03,727 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 14:31:04,176 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 12 treesize of output 9 [2022-10-03 14:31:04,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:31:04,270 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 14:31:04,680 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 5 treesize of output 3 [2022-10-03 14:31:05,351 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-10-03 14:31:05,351 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 18 [2022-10-03 14:31:14,966 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 6 treesize of output 5 [2022-10-03 14:31:14,978 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 6 treesize of output 5 [2022-10-03 14:31:18,723 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 23 treesize of output 15 [2022-10-03 14:31:19,901 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-10-03 14:31:19,902 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 33 treesize of output 32 [2022-10-03 14:31:22,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:31:22,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:31:22,947 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-10-03 14:31:22,947 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 39 [2022-10-03 14:31:24,599 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 12 treesize of output 11 [2022-10-03 14:31:28,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:31:28,422 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 35 [2022-10-03 14:31:29,197 INFO L356 Elim1Store]: treesize reduction 36, result has 37.9 percent of original size [2022-10-03 14:31:29,197 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 33 [2022-10-03 14:31:32,875 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 14:31:33,512 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-03 14:31:33,512 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2022-10-03 14:31:33,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1880 backedges. 1151 proven. 462 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2022-10-03 14:31:33,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 14:31:35,737 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 14:31:35,737 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 26 [2022-10-03 14:31:37,373 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 41 treesize of output 33 [2022-10-03 14:31:44,719 INFO L356 Elim1Store]: treesize reduction 14, result has 22.2 percent of original size [2022-10-03 14:31:44,719 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 104 treesize of output 94 [2022-10-03 14:32:23,200 INFO L356 Elim1Store]: treesize reduction 30, result has 67.0 percent of original size [2022-10-03 14:32:23,202 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 54165 treesize of output 51766 [2022-10-03 14:32:23,505 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 14:32:23,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 118462 treesize of output 105192 [2022-10-03 14:32:24,211 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 14:32:24,214 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 133150 treesize of output 126680 [2022-10-03 14:32:25,219 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 95 treesize of output 83 [2022-10-03 14:32:25,709 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 75 treesize of output 69 [2022-10-03 14:32:42,944 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-10-03 14:32:42,945 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 125850 treesize of output 1 [2022-10-03 14:32:51,073 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 53 treesize of output 43 [2022-10-03 14:33:00,067 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 6 treesize of output 4 [2022-10-03 14:33:00,863 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 113 treesize of output 109 [2022-10-03 14:33:01,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1880 backedges. 351 proven. 1274 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-10-03 14:33:01,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758339463] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 14:33:01,429 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 14:33:01,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 109, 117] total 302 [2022-10-03 14:33:01,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780460318] [2022-10-03 14:33:01,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 14:33:01,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 302 states [2022-10-03 14:33:01,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:33:01,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 302 interpolants. [2022-10-03 14:33:01,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2314, Invalid=88480, Unknown=108, NotChecked=0, Total=90902 [2022-10-03 14:33:01,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:33:01,451 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:33:01,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 302 states, 302 states have (on average 11.599337748344372) internal successors, (3503), 302 states have internal predecessors, (3503), 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 14:33:01,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:33:01,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-10-03 14:33:01,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2022-10-03 14:33:01,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-10-03 14:33:01,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2022-10-03 14:33:01,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:34:10,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:34:10,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-03 14:34:10,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2022-10-03 14:34:10,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-10-03 14:34:10,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2022-10-03 14:34:10,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2022-10-03 14:34:10,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-03 14:34:10,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:34:10,949 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:34:10,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:34:10,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1826578088, now seen corresponding path program 1 times [2022-10-03 14:34:10,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:34:10,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909713135] [2022-10-03 14:34:10,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:34:10,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:34:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:34:16,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1643 backedges. 498 proven. 44 refuted. 0 times theorem prover too weak. 1101 trivial. 0 not checked. [2022-10-03 14:34:16,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:34:16,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909713135] [2022-10-03 14:34:16,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909713135] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 14:34:16,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571777442] [2022-10-03 14:34:16,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:34:16,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:34:16,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:34:16,906 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 14:34:16,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-03 14:34:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:34:17,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 4095 conjuncts, 163 conjunts are in the unsatisfiable core [2022-10-03 14:34:17,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 14:34:19,020 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 14:34:19,023 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 14:34:21,234 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-03 14:34:21,234 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 14:34:21,810 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 20 treesize of output 20 [2022-10-03 14:34:21,813 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 29 treesize of output 27 [2022-10-03 14:34:25,645 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-10-03 14:34:25,646 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 41 treesize of output 38 [2022-10-03 14:34:25,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:34:25,650 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 22 treesize of output 22 [2022-10-03 14:34:26,353 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 35 treesize of output 15 [2022-10-03 14:34:26,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1643 backedges. 428 proven. 0 refuted. 0 times theorem prover too weak. 1215 trivial. 0 not checked. [2022-10-03 14:34:26,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-03 14:34:26,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571777442] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 14:34:26,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-03 14:34:26,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [90] total 138 [2022-10-03 14:34:26,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010651110] [2022-10-03 14:34:26,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 14:34:26,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-10-03 14:34:26,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:34:26,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-10-03 14:34:26,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=423, Invalid=18483, Unknown=0, NotChecked=0, Total=18906 [2022-10-03 14:34:26,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:34:26,738 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:34:26,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 19.0) internal successors, (950), 50 states have internal predecessors, (950), 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 14:34:26,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:34:26,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2022-10-03 14:34:26,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 173 states. [2022-10-03 14:34:26,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 129 states. [2022-10-03 14:34:26,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2022-10-03 14:34:26,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. [2022-10-03 14:34:26,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:34:56,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:34:56,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-03 14:34:56,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2022-10-03 14:34:56,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2022-10-03 14:34:56,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-10-03 14:34:56,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2022-10-03 14:34:56,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-10-03 14:34:56,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-03 14:34:56,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:34:56,409 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:34:56,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:34:56,410 INFO L85 PathProgramCache]: Analyzing trace with hash -82836729, now seen corresponding path program 1 times [2022-10-03 14:34:56,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:34:56,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289165607] [2022-10-03 14:34:56,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:34:56,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:34:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:35:03,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1597 backedges. 459 proven. 222 refuted. 0 times theorem prover too weak. 916 trivial. 0 not checked. [2022-10-03 14:35:03,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:35:03,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289165607] [2022-10-03 14:35:03,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289165607] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 14:35:03,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147083174] [2022-10-03 14:35:03,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:35:03,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:35:03,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:35:03,965 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 14:35:03,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-03 14:35:04,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:35:04,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 4545 conjuncts, 367 conjunts are in the unsatisfiable core [2022-10-03 14:35:04,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 14:35:05,088 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-10-03 14:35:05,088 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 18 [2022-10-03 14:35:06,152 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-10-03 14:35:06,152 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-10-03 14:35:06,711 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 14:35:08,169 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 13 treesize of output 9 [2022-10-03 14:35:08,189 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 13 treesize of output 9 [2022-10-03 14:35:09,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:35:09,122 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 14 treesize of output 16 [2022-10-03 14:35:09,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:35:09,130 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 14 treesize of output 16 [2022-10-03 14:35:09,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:35:09,619 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 19 treesize of output 18 [2022-10-03 14:35:09,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:35:09,624 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 23 treesize of output 22 [2022-10-03 14:35:12,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:35:12,489 INFO L356 Elim1Store]: treesize reduction 86, result has 29.5 percent of original size [2022-10-03 14:35:12,489 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 31 treesize of output 53 [2022-10-03 14:35:12,915 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-03 14:35:13,831 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-10-03 14:35:13,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 62 [2022-10-03 14:35:13,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:35:13,839 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2022-10-03 14:35:33,832 INFO L356 Elim1Store]: treesize reduction 168, result has 11.6 percent of original size [2022-10-03 14:35:33,833 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 133 treesize of output 96 [2022-10-03 14:35:33,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:35:33,925 INFO L356 Elim1Store]: treesize reduction 96, result has 55.1 percent of original size [2022-10-03 14:35:33,925 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 59 treesize of output 143 [2022-10-03 14:36:06,908 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-03 14:36:06,910 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 12 [2022-10-03 14:36:11,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:36:11,807 INFO L356 Elim1Store]: treesize reduction 180, result has 27.4 percent of original size [2022-10-03 14:36:11,807 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 188 treesize of output 194 [2022-10-03 14:36:11,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:36:11,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:36:11,927 INFO L356 Elim1Store]: treesize reduction 196, result has 21.9 percent of original size [2022-10-03 14:36:11,928 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 25 case distinctions, treesize of input 108 treesize of output 149 [2022-10-03 14:36:34,358 WARN L233 SmtUtils]: Spent 20.48s on a formula simplification. DAG size of input: 109 DAG size of output: 75 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-03 14:36:39,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:36:39,115 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 14:36:39,115 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 155 treesize of output 263 [2022-10-03 14:36:52,010 WARN L233 SmtUtils]: Spent 6.20s on a formula simplification. DAG size of input: 106 DAG size of output: 57 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-03 14:36:59,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:36:59,952 INFO L356 Elim1Store]: treesize reduction 26, result has 27.8 percent of original size [2022-10-03 14:36:59,952 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 22 treesize of output 29 [2022-10-03 14:37:06,041 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 14:37:06,042 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 135 treesize of output 161 [2022-10-03 14:37:07,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1597 backedges. 519 proven. 298 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-03 14:37:07,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 14:38:40,407 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1355 Int)) (or (forall ((|ULTIMATE.start_read~$Pointer$_#ptr#1.base| Int) (v_ArrVal_1357 (Array Int Int)) (v_ArrVal_1356 (Array Int Int)) (|ULTIMATE.start_read~$Pointer$_#ptr#1.offset| Int)) (let ((.cse0 (select (select (let ((.cse11 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| v_ArrVal_1357))) (let ((.cse12 (select (select .cse11 |ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |ULTIMATE.start_read~$Pointer$_#ptr#1.offset|))) (store .cse11 .cse12 (let ((.cse13 (select .cse11 .cse12)) (.cse14 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| v_ArrVal_1356) |ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |ULTIMATE.start_read~$Pointer$_#ptr#1.offset|))) (store .cse13 .cse14 (select .cse13 .cse14)))))) |c_ULTIMATE.start_main_~#q~1#1.base|) |c_ULTIMATE.start_main_~#q~1#1.offset|))) (or (= .cse0 0) (not (= (select (store |c_#valid| .cse0 0) |c_ULTIMATE.start_main_~#q~1#1.base|) 1)) (forall ((v_ArrVal_1358 Int)) (let ((.cse9 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| v_ArrVal_1357)) (.cse7 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| v_ArrVal_1356))) (let ((.cse5 (select (select .cse7 |ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |ULTIMATE.start_read~$Pointer$_#ptr#1.offset|)) (.cse8 (select (select .cse9 |ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |ULTIMATE.start_read~$Pointer$_#ptr#1.offset|))) (let ((.cse4 (select .cse7 .cse8)) (.cse6 (store .cse9 .cse8 (let ((.cse10 (select .cse9 .cse8))) (store .cse10 .cse5 (select .cse10 .cse5)))))) (let ((.cse1 (select (select .cse6 |c_ULTIMATE.start_main_~#q~1#1.base|) |c_ULTIMATE.start_main_~#q~1#1.offset|)) (.cse2 (select (select (store .cse7 .cse8 (store .cse4 .cse5 v_ArrVal_1358)) |c_ULTIMATE.start_main_~#q~1#1.base|) |c_ULTIMATE.start_main_~#q~1#1.offset|))) (let ((.cse3 (select (select .cse6 .cse1) (+ 16 .cse2)))) (or (< (select (store |c_ULTIMATE.start_#Ultimate.allocOnStack_old_#length#1| |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| v_ArrVal_1355) .cse1) (+ 20 .cse2)) (< .cse2 0) (= .cse3 0) (< v_ArrVal_1358 (+ (select .cse4 .cse5) 4)) (not (= (select (store |c_#valid| .cse1 0) .cse3) 1)))))))))))) (not (<= v_ArrVal_1355 |c_ULTIMATE.start_#Ultimate.allocOnStack_~size#1|)))) (forall ((v_ArrVal_1355 Int)) (or (forall ((|ULTIMATE.start_read~$Pointer$_#ptr#1.base| Int) (v_ArrVal_1357 (Array Int Int)) (v_ArrVal_1356 (Array Int Int)) (|ULTIMATE.start_read~$Pointer$_#ptr#1.offset| Int)) (let ((.cse15 (select (select (let ((.cse27 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| v_ArrVal_1357))) (let ((.cse28 (select (select .cse27 |ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |ULTIMATE.start_read~$Pointer$_#ptr#1.offset|))) (store .cse27 .cse28 (let ((.cse29 (select .cse27 .cse28)) (.cse30 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| v_ArrVal_1356) |ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |ULTIMATE.start_read~$Pointer$_#ptr#1.offset|))) (store .cse29 .cse30 (select .cse29 .cse30)))))) |c_ULTIMATE.start_main_~#q~1#1.base|) |c_ULTIMATE.start_main_~#q~1#1.offset|))) (or (= .cse15 0) (not (= (select (store |c_#valid| .cse15 0) |c_ULTIMATE.start_main_~#q~1#1.base|) 1)) (forall ((v_ArrVal_1358 Int)) (let ((.cse23 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| v_ArrVal_1357))) (let ((.cse26 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| v_ArrVal_1356)) (.cse24 (select (select .cse23 |ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |ULTIMATE.start_read~$Pointer$_#ptr#1.offset|))) (let ((.cse18 (select .cse26 .cse24)) (.cse19 (select (select .cse26 |ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |ULTIMATE.start_read~$Pointer$_#ptr#1.offset|))) (let ((.cse22 (store .cse26 .cse24 (store .cse18 .cse19 v_ArrVal_1358)))) (let ((.cse17 (select (select .cse22 |c_ULTIMATE.start_main_~#q~1#1.base|) |c_ULTIMATE.start_main_~#q~1#1.offset|)) (.cse20 (store .cse23 .cse24 (let ((.cse25 (select .cse23 .cse24))) (store .cse25 .cse19 (select .cse25 .cse19)))))) (let ((.cse16 (select (select .cse20 |c_ULTIMATE.start_main_~#q~1#1.base|) |c_ULTIMATE.start_main_~#q~1#1.offset|)) (.cse21 (+ 16 .cse17))) (or (< (select (store |c_ULTIMATE.start_#Ultimate.allocOnStack_old_#length#1| |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| v_ArrVal_1355) .cse16) (+ 20 .cse17)) (< .cse17 0) (< v_ArrVal_1358 (+ (select .cse18 .cse19) 4)) (not (= (select (store |c_#valid| .cse16 0) (select (select .cse20 .cse16) .cse21)) 1)) (= (select (select .cse22 .cse16) .cse21) 0)))))))))))) (not (<= v_ArrVal_1355 |c_ULTIMATE.start_#Ultimate.allocOnStack_~size#1|)))) (forall ((v_ArrVal_1355 Int)) (or (forall ((|ULTIMATE.start_read~$Pointer$_#ptr#1.base| Int) (v_ArrVal_1357 (Array Int Int)) (v_ArrVal_1356 (Array Int Int)) (|ULTIMATE.start_read~$Pointer$_#ptr#1.offset| Int)) (or (forall ((v_ArrVal_1358 Int)) (let ((.cse39 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| v_ArrVal_1357)) (.cse37 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| v_ArrVal_1356))) (let ((.cse35 (select (select .cse37 |ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |ULTIMATE.start_read~$Pointer$_#ptr#1.offset|)) (.cse38 (select (select .cse39 |ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |ULTIMATE.start_read~$Pointer$_#ptr#1.offset|))) (let ((.cse34 (select .cse37 .cse38)) (.cse36 (store .cse39 .cse38 (let ((.cse40 (select .cse39 .cse38))) (store .cse40 .cse35 (select .cse40 .cse35)))))) (let ((.cse32 (select (select .cse36 |c_ULTIMATE.start_main_~#q~1#1.base|) |c_ULTIMATE.start_main_~#q~1#1.offset|)) (.cse31 (select (select (store .cse37 .cse38 (store .cse34 .cse35 v_ArrVal_1358)) |c_ULTIMATE.start_main_~#q~1#1.base|) |c_ULTIMATE.start_main_~#q~1#1.offset|))) (let ((.cse33 (select (select .cse36 .cse32) (+ 16 .cse31)))) (or (= .cse31 0) (< (select (store |c_ULTIMATE.start_#Ultimate.allocOnStack_old_#length#1| |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| v_ArrVal_1355) .cse32) (+ 20 .cse31)) (< .cse31 0) (= .cse33 0) (< v_ArrVal_1358 (+ (select .cse34 .cse35) 4)) (not (= (select (store |c_#valid| .cse32 0) .cse33) 1))))))))) (not (= (select (store |c_#valid| (select (select (let ((.cse41 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| v_ArrVal_1357))) (let ((.cse42 (select (select .cse41 |ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |ULTIMATE.start_read~$Pointer$_#ptr#1.offset|))) (store .cse41 .cse42 (let ((.cse43 (select .cse41 .cse42)) (.cse44 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| v_ArrVal_1356) |ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |ULTIMATE.start_read~$Pointer$_#ptr#1.offset|))) (store .cse43 .cse44 (select .cse43 .cse44)))))) |c_ULTIMATE.start_main_~#q~1#1.base|) |c_ULTIMATE.start_main_~#q~1#1.offset|) 0) |c_ULTIMATE.start_main_~#q~1#1.base|) 1)))) (not (<= v_ArrVal_1355 |c_ULTIMATE.start_#Ultimate.allocOnStack_~size#1|))))) is different from false [2022-10-03 14:39:51,709 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 14:39:51,709 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 1193 treesize of output 1040 [2022-10-03 14:39:51,724 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 14:39:51,724 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 1034 treesize of output 947 [2022-10-03 14:39:51,825 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 14:39:51,825 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 1232 treesize of output 1067 [2022-10-03 14:39:51,840 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 14:39:51,840 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 1061 treesize of output 977 [2022-10-03 14:39:51,943 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 14:39:51,943 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 1193 treesize of output 1040 [2022-10-03 14:39:51,959 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 14:39:51,960 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 1034 treesize of output 947 Received shutdown request... [2022-10-03 14:40:02,038 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-03 14:40:02,039 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-03 14:40:02,039 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-03 14:40:03,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-10-03 14:40:03,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-10-03 14:40:03,255 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-10-03 14:40:03,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 [2022-10-03 14:40:03,316 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-10-03 14:40:03,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-03 14:40:03,317 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Not enough levels on assertion stack at de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.pop(UndoableWrapperScript.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.restore(UndoableWrapperScript.java:87) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-10-03 14:40:03,319 INFO L158 Benchmark]: Toolchain (without parser) took 776117.43ms. Allocated memory was 188.7MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 134.9MB in the beginning and 872.3MB in the end (delta: -737.4MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-10-03 14:40:03,320 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.18ms. Allocated memory is still 188.7MB. Free memory is still 141.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-03 14:40:03,320 INFO L158 Benchmark]: Boogie Preprocessor took 157.60ms. Allocated memory is still 188.7MB. Free memory was 134.9MB in the beginning and 157.0MB in the end (delta: -22.1MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-10-03 14:40:03,320 INFO L158 Benchmark]: RCFGBuilder took 1486.87ms. Allocated memory was 188.7MB in the beginning and 243.3MB in the end (delta: 54.5MB). Free memory was 156.7MB in the beginning and 176.7MB in the end (delta: -20.0MB). Peak memory consumption was 50.1MB. Max. memory is 8.0GB. [2022-10-03 14:40:03,320 INFO L158 Benchmark]: TraceAbstraction took 774467.63ms. Allocated memory was 243.3MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 176.2MB in the beginning and 872.3MB in the end (delta: -696.1MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-10-03 14:40:03,321 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.18ms. Allocated memory is still 188.7MB. Free memory is still 141.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 157.60ms. Allocated memory is still 188.7MB. Free memory was 134.9MB in the beginning and 157.0MB in the end (delta: -22.1MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * RCFGBuilder took 1486.87ms. Allocated memory was 188.7MB in the beginning and 243.3MB in the end (delta: 54.5MB). Free memory was 156.7MB in the beginning and 176.7MB in the end (delta: -20.0MB). Peak memory consumption was 50.1MB. Max. memory is 8.0GB. * TraceAbstraction took 774467.63ms. Allocated memory was 243.3MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 176.2MB in the beginning and 872.3MB in the end (delta: -696.1MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Not enough levels on assertion stack de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Not enough levels on assertion stack: de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown