/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.line1413.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-09-29 21:50:53,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 21:50:53,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 21:50:53,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 21:50:53,995 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 21:50:53,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 21:50:53,998 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 21:50:53,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 21:50:54,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 21:50:54,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 21:50:54,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 21:50:54,002 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 21:50:54,003 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 21:50:54,004 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 21:50:54,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 21:50:54,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 21:50:54,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 21:50:54,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 21:50:54,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 21:50:54,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 21:50:54,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 21:50:54,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 21:50:54,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 21:50:54,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 21:50:54,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 21:50:54,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 21:50:54,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 21:50:54,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 21:50:54,035 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-29 21:50:54,072 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 21:50:54,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 21:50:54,073 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 21:50:54,073 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 21:50:54,074 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-29 21:50:54,074 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-29 21:50:54,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 21:50:54,075 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 21:50:54,075 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 21:50:54,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 21:50:54,076 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 21:50:54,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 21:50:54,076 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 21:50:54,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 21:50:54,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-29 21:50:54,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-29 21:50:54,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-29 21:50:54,077 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 21:50:54,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 21:50:54,077 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 21:50:54,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-29 21:50:54,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 21:50:54,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 21:50:54,079 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-29 21:50:54,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-29 21:50:54,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 21:50:54,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 21:50:54,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-29 21:50:54,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-29 21:50:54,080 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 21:50:54,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-29 21:50:54,080 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-29 21:50:54,080 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-29 21:50:54,080 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-29 21:50:54,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-29 21:50:54,081 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-29 21:50:54,081 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-29 21:50:54,081 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-29 21:50:54,081 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 21:50:54,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 21:50:54,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 21:50:54,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 21:50:54,311 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 21:50:54,312 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 21:50:54,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo-bug_1w1r.line1413.bpl [2022-09-29 21:50:54,313 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo-bug_1w1r.line1413.bpl' [2022-09-29 21:50:54,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 21:50:54,399 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-29 21:50:54,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 21:50:54,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 21:50:54,400 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 21:50:54,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1413.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:50:54" (1/1) ... [2022-09-29 21:50:54,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1413.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:50:54" (1/1) ... [2022-09-29 21:50:54,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1413.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:50:54" (1/1) ... [2022-09-29 21:50:54,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1413.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:50:54" (1/1) ... [2022-09-29 21:50:54,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1413.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:50:54" (1/1) ... [2022-09-29 21:50:54,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1413.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:50:54" (1/1) ... [2022-09-29 21:50:54,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1413.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:50:54" (1/1) ... [2022-09-29 21:50:54,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 21:50:54,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 21:50:54,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 21:50:54,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 21:50:54,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo-bug_1w1r.line1413.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:50:54" (1/1) ... [2022-09-29 21:50:54,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 21:50:54,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:50:54,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-29 21:50:54,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-29 21:50:54,607 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-09-29 21:50:54,608 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-09-29 21:50:54,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 21:50:54,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 21:50:54,610 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-29 21:50:54,839 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 21:50:54,841 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 21:50:55,834 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 21:50:55,881 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 21:50:55,882 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-09-29 21:50:55,886 INFO L202 PluginConnector]: Adding new model divinefifo-bug_1w1r.line1413.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 09:50:55 BoogieIcfgContainer [2022-09-29 21:50:55,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 21:50:55,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-29 21:50:55,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-29 21:50:55,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-29 21:50:55,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1413.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 09:50:54" (1/2) ... [2022-09-29 21:50:55,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c3f21d9 and model type divinefifo-bug_1w1r.line1413.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.09 09:50:55, skipping insertion in model container [2022-09-29 21:50:55,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1413.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 09:50:55" (2/2) ... [2022-09-29 21:50:55,909 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo-bug_1w1r.line1413.bpl [2022-09-29 21:50:55,916 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-29 21:50:55,924 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-29 21:50:55,924 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-29 21:50:55,924 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-29 21:50:56,149 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-29 21:50:56,231 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 21:50:56,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 21:50:56,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:50:56,235 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-09-29 21:50:56,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-09-29 21:50:56,272 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 21:50:56,279 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-09-29 21:50:56,286 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;@76d3dc2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 21:50:56,286 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 21:50:56,694 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:50:56,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:50:56,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1675995245, now seen corresponding path program 1 times [2022-09-29 21:50:56,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:50:56,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799560119] [2022-09-29 21:50:56,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:50:56,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:50:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:50:57,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 21:50:57,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:50:57,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799560119] [2022-09-29 21:50:57,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799560119] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:50:57,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:50:57,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-29 21:50:57,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178091283] [2022-09-29 21:50:57,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:50:57,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-29 21:50:57,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:50:57,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-29 21:50:57,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-29 21:50:57,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:50:57,282 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:50:57,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 298.0) internal successors, (596), 2 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 21:50:57,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:50:57,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:50:57,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-29 21:50:57,538 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:50:57,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:50:57,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1856025229, now seen corresponding path program 1 times [2022-09-29 21:50:57,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:50:57,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097765889] [2022-09-29 21:50:57,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:50:57,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:50:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:50:58,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 21:50:58,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:50:58,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097765889] [2022-09-29 21:50:58,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097765889] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:50:58,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:50:58,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-09-29 21:50:58,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345090236] [2022-09-29 21:50:58,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:50:58,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-09-29 21:50:58,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:50:58,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-09-29 21:50:58,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-09-29 21:50:58,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:50:58,758 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:50:58,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 41.375) internal successors, (662), 17 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 21:50:58,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:50:58,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:51:01,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:51:01,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-09-29 21:51:01,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-29 21:51:01,128 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:51:01,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:51:01,129 INFO L85 PathProgramCache]: Analyzing trace with hash -516972697, now seen corresponding path program 1 times [2022-09-29 21:51:01,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:51:01,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963543969] [2022-09-29 21:51:01,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:51:01,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:51:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:51:01,981 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 143 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-29 21:51:01,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:51:01,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963543969] [2022-09-29 21:51:01,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963543969] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 21:51:01,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625421985] [2022-09-29 21:51:01,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:51:01,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:51:01,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:51:01,986 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) [2022-09-29 21:51:01,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-29 21:51:02,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:51:02,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 2504 conjuncts, 204 conjunts are in the unsatisfiable core [2022-09-29 21:51:02,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 21:51:02,838 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 [2022-09-29 21:51:03,370 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 [2022-09-29 21:51:03,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:51:03,591 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 [2022-09-29 21:51:03,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:51:03,879 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 [2022-09-29 21:51:04,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:51:04,096 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 [2022-09-29 21:51:04,106 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 [2022-09-29 21:51:05,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:51:05,176 INFO L356 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-09-29 21:51:05,176 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 [2022-09-29 21:51:05,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:51:05,535 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 [2022-09-29 21:51:05,542 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 35 treesize of output 33 [2022-09-29 21:51:09,372 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-09-29 21:51:09,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-29 21:51:09,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625421985] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:51:09,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-29 21:51:09,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [14] total 65 [2022-09-29 21:51:09,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768226143] [2022-09-29 21:51:09,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:51:09,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-09-29 21:51:09,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:51:09,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-09-29 21:51:09,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=3907, Unknown=0, NotChecked=0, Total=4160 [2022-09-29 21:51:09,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:51:09,377 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:51:09,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 16.30188679245283) internal successors, (864), 53 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 21:51:09,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:51:09,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-09-29 21:51:09,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:51:20,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:51:20,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-09-29 21:51:20,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-09-29 21:51:20,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-29 21:51:20,831 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 [2022-09-29 21:51:20,832 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:51:20,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:51:20,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1607827689, now seen corresponding path program 1 times [2022-09-29 21:51:20,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:51:20,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225355269] [2022-09-29 21:51:20,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:51:20,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:51:21,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:51:25,872 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-09-29 21:51:25,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:51:25,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225355269] [2022-09-29 21:51:25,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225355269] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:51:25,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 21:51:25,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [82] imperfect sequences [] total 82 [2022-09-29 21:51:25,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107173702] [2022-09-29 21:51:25,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:51:25,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2022-09-29 21:51:25,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:51:25,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2022-09-29 21:51:25,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=6394, Unknown=0, NotChecked=0, Total=6642 [2022-09-29 21:51:25,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:51:25,878 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:51:25,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 11.548780487804878) internal successors, (947), 82 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 21:51:25,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:51:25,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-09-29 21:51:25,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-09-29 21:51:25,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:51:57,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:51:57,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-09-29 21:51:57,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-09-29 21:51:57,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-09-29 21:51:57,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-29 21:51:57,976 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:51:57,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:51:57,977 INFO L85 PathProgramCache]: Analyzing trace with hash -602280734, now seen corresponding path program 1 times [2022-09-29 21:51:57,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:51:57,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780364010] [2022-09-29 21:51:57,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:51:57,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:51:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:51:59,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1185 backedges. 405 proven. 10 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2022-09-29 21:51:59,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:51:59,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780364010] [2022-09-29 21:51:59,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780364010] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 21:51:59,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116539650] [2022-09-29 21:51:59,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:51:59,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:51:59,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:51:59,296 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) [2022-09-29 21:51:59,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-29 21:51:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:51:59,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 3728 conjuncts, 174 conjunts are in the unsatisfiable core [2022-09-29 21:52:00,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 21:52:00,681 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 [2022-09-29 21:52:00,687 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 [2022-09-29 21:52:01,425 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-29 21:52:01,426 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 [2022-09-29 21:52:01,607 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 16 treesize of output 18 [2022-09-29 21:52:01,613 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 [2022-09-29 21:52:03,721 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-09-29 21:52:03,722 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 40 [2022-09-29 21:52:03,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:52:03,732 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 24 treesize of output 24 [2022-09-29 21:52:04,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:52:04,192 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 15 [2022-09-29 21:52:04,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:52:04,198 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 30 treesize of output 10 [2022-09-29 21:52:04,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1185 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2022-09-29 21:52:04,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-29 21:52:04,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116539650] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:52:04,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-29 21:52:04,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [14] total 67 [2022-09-29 21:52:04,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923723720] [2022-09-29 21:52:04,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:52:04,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-09-29 21:52:04,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:52:04,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-09-29 21:52:04,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=4176, Unknown=0, NotChecked=0, Total=4422 [2022-09-29 21:52:04,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:52:04,343 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:52:04,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 17.6) internal successors, (968), 55 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 21:52:04,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:52:04,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-09-29 21:52:04,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-09-29 21:52:04,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-09-29 21:52:04,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:52:22,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:52:22,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-09-29 21:52:22,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-09-29 21:52:22,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2022-09-29 21:52:22,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-09-29 21:52:22,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-29 21:52:22,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:52:22,639 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:52:22,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:52:22,640 INFO L85 PathProgramCache]: Analyzing trace with hash -230191833, now seen corresponding path program 1 times [2022-09-29 21:52:22,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:52:22,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250531777] [2022-09-29 21:52:22,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:52:22,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:52:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:52:23,599 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 143 proven. 268 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-09-29 21:52:23,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:52:23,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250531777] [2022-09-29 21:52:23,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250531777] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 21:52:23,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49721041] [2022-09-29 21:52:23,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:52:23,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:52:23,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:52:23,605 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) [2022-09-29 21:52:23,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-29 21:52:24,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:52:24,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 3369 conjuncts, 233 conjunts are in the unsatisfiable core [2022-09-29 21:52:24,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 21:52:24,322 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 [2022-09-29 21:52:24,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:52:24,539 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 [2022-09-29 21:52:25,188 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-09-29 21:52:25,188 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 [2022-09-29 21:52:30,489 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 [2022-09-29 21:52:31,403 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-09-29 21:52:31,404 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 [2022-09-29 21:52:33,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2022-09-29 21:52:33,384 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 [2022-09-29 21:52:33,728 INFO L356 Elim1Store]: treesize reduction 12, result has 67.6 percent of original size [2022-09-29 21:52:33,728 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 29 treesize of output 39 [2022-09-29 21:52:34,614 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 33 treesize of output 26 [2022-09-29 21:52:35,026 INFO L356 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2022-09-29 21:52:35,027 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 1 case distinctions, treesize of input 18 treesize of output 20 [2022-09-29 21:52:36,597 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-29 21:52:36,598 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 1 case distinctions, treesize of input 42 treesize of output 16 [2022-09-29 21:52:36,810 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 292 proven. 300 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-09-29 21:52:36,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 21:52:39,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2022-09-29 21:52:42,413 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-29 21:52:42,414 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 [2022-09-29 21:52:43,532 INFO L356 Elim1Store]: treesize reduction 13, result has 86.6 percent of original size [2022-09-29 21:52:43,533 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 5 new quantified variables, introduced 9 case distinctions, treesize of input 63 treesize of output 114 [2022-09-29 21:52:43,538 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 13 treesize of output 7 [2022-09-29 21:52:53,785 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.allocOnHeap_#res#1.base| Int)) (or (not (< |ULTIMATE.start_#Ultimate.allocOnHeap_#res#1.base| |c_#StackHeapBarrier|)) (forall ((v_ArrVal_719 Int)) (let ((.cse0 (select (store |c_ULTIMATE.start_#Ultimate.allocOnHeap_old_#length#1| |ULTIMATE.start_#Ultimate.allocOnHeap_#res#1.base| v_ArrVal_719) |c_ULTIMATE.start_main_~#q~1#1.base|))) (or (< .cse0 (+ 8 |c_ULTIMATE.start_main_~#q~1#1.offset|)) (< .cse0 16)))))) is different from false [2022-09-29 21:53:06,159 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_719 Int) (|ULTIMATE.start_#Ultimate.allocOnHeap_#res#1.base| Int)) (let ((.cse0 (select (store |c_#length| |ULTIMATE.start_#Ultimate.allocOnHeap_#res#1.base| v_ArrVal_719) |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base|))) (or (< .cse0 (+ 8 |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.offset|)) (not (< |ULTIMATE.start_#Ultimate.allocOnHeap_#res#1.base| |c_#StackHeapBarrier|)) (< .cse0 16)))) is different from false [2022-09-29 21:53:06,508 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 113 proven. 300 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-09-29 21:53:06,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49721041] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 21:53:06,508 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 21:53:06,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 89, 73] total 173 [2022-09-29 21:53:06,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186278423] [2022-09-29 21:53:06,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 21:53:06,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 173 states [2022-09-29 21:53:06,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:53:06,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 173 interpolants. [2022-09-29 21:53:06,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1078, Invalid=27921, Unknown=79, NotChecked=678, Total=29756 [2022-09-29 21:53:06,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:53:06,522 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:53:06,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 173 states, 173 states have (on average 20.329479768786126) internal successors, (3517), 173 states have internal predecessors, (3517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 21:53:06,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:53:06,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-09-29 21:53:06,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-09-29 21:53:06,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2022-09-29 21:53:06,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-09-29 21:53:06,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:53:54,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:53:54,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-09-29 21:53:54,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-09-29 21:53:54,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2022-09-29 21:53:54,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-09-29 21:53:54,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2022-09-29 21:53:54,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-09-29 21:53:54,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:53:54,700 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:53:54,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:53:54,700 INFO L85 PathProgramCache]: Analyzing trace with hash 672981641, now seen corresponding path program 2 times [2022-09-29 21:53:54,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:53:54,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843372663] [2022-09-29 21:53:54,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:53:54,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:53:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:53:55,458 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 31 proven. 268 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2022-09-29 21:53:55,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:53:55,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843372663] [2022-09-29 21:53:55,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843372663] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 21:53:55,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818303136] [2022-09-29 21:53:55,459 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-29 21:53:55,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:53:55,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:53:55,460 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) [2022-09-29 21:53:55,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-29 21:53:56,381 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-29 21:53:56,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-29 21:53:56,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 1742 conjuncts, 23 conjunts are in the unsatisfiable core [2022-09-29 21:53:56,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 21:53:56,786 INFO L134 CoverageAnalysis]: Checked inductivity of 629 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2022-09-29 21:53:56,787 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-29 21:53:56,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818303136] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 21:53:56,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-29 21:53:56,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 20 [2022-09-29 21:53:56,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93819363] [2022-09-29 21:53:56,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 21:53:56,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-29 21:53:56,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:53:56,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-29 21:53:56,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2022-09-29 21:53:56,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:53:56,790 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:53:56,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 103.3) internal successors, (1033), 11 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 21:53:56,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:53:56,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-09-29 21:53:56,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-09-29 21:53:56,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2022-09-29 21:53:56,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-09-29 21:53:56,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 163 states. [2022-09-29 21:53:56,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:54:04,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:54:04,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-09-29 21:54:04,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-09-29 21:54:04,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2022-09-29 21:54:04,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-09-29 21:54:04,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2022-09-29 21:54:04,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-09-29 21:54:04,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-09-29 21:54:05,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:54:05,076 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:54:05,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:54:05,076 INFO L85 PathProgramCache]: Analyzing trace with hash -465603043, now seen corresponding path program 1 times [2022-09-29 21:54:05,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:54:05,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384438687] [2022-09-29 21:54:05,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:54:05,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:54:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:54:13,424 INFO L134 CoverageAnalysis]: Checked inductivity of 6820 backedges. 1408 proven. 182 refuted. 0 times theorem prover too weak. 5230 trivial. 0 not checked. [2022-09-29 21:54:13,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:54:13,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384438687] [2022-09-29 21:54:13,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384438687] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 21:54:13,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909427289] [2022-09-29 21:54:13,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:54:13,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:54:13,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:54:13,426 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) [2022-09-29 21:54:13,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-29 21:54:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:54:14,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 8463 conjuncts, 328 conjunts are in the unsatisfiable core [2022-09-29 21:54:14,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 21:54:19,451 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 [2022-09-29 21:54:19,454 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 [2022-09-29 21:54:26,283 INFO L356 Elim1Store]: treesize reduction 144, result has 10.6 percent of original size [2022-09-29 21:54:26,284 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 7 case distinctions, treesize of input 86 treesize of output 61 [2022-09-29 21:54:26,295 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-09-29 21:54:26,296 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 61 [2022-09-29 21:54:26,304 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 35 treesize of output 25 [2022-09-29 21:54:30,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:54:30,097 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 71 treesize of output 51 [2022-09-29 21:54:31,686 INFO L356 Elim1Store]: treesize reduction 72, result has 42.4 percent of original size [2022-09-29 21:54:31,686 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 79 treesize of output 92 [2022-09-29 21:54:33,009 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 [2022-09-29 21:54:35,890 INFO L356 Elim1Store]: treesize reduction 82, result has 17.2 percent of original size [2022-09-29 21:54:35,890 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 63 treesize of output 47 [2022-09-29 21:54:36,330 INFO L356 Elim1Store]: treesize reduction 46, result has 40.3 percent of original size [2022-09-29 21:54:36,331 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 3 case distinctions, treesize of input 23 treesize of output 42 [2022-09-29 21:54:40,151 INFO L356 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-09-29 21:54:40,152 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 82 treesize of output 25 [2022-09-29 21:54:40,730 INFO L134 CoverageAnalysis]: Checked inductivity of 6820 backedges. 3943 proven. 749 refuted. 0 times theorem prover too weak. 2128 trivial. 0 not checked. [2022-09-29 21:54:40,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 21:54:44,683 INFO L356 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-09-29 21:54:44,683 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 31 treesize of output 21 [2022-09-29 21:54:57,830 INFO L134 CoverageAnalysis]: Checked inductivity of 6820 backedges. 4469 proven. 77 refuted. 0 times theorem prover too weak. 2274 trivial. 0 not checked. [2022-09-29 21:54:57,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909427289] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 21:54:57,831 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 21:54:57,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 100, 78] total 270 [2022-09-29 21:54:57,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320732155] [2022-09-29 21:54:57,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 21:54:57,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 270 states [2022-09-29 21:54:57,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 21:54:57,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 270 interpolants. [2022-09-29 21:54:57,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2604, Invalid=70021, Unknown=5, NotChecked=0, Total=72630 [2022-09-29 21:54:57,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:54:57,855 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 21:54:57,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 270 states, 270 states have (on average 15.237037037037037) internal successors, (4114), 270 states have internal predecessors, (4114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 21:54:57,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:54:57,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-09-29 21:54:57,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-09-29 21:54:57,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2022-09-29 21:54:57,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-09-29 21:54:57,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 182 states. [2022-09-29 21:54:57,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-09-29 21:54:57,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:58:21,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 21:58:21,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-09-29 21:58:21,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-09-29 21:58:21,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-09-29 21:58:21,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-09-29 21:58:21,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 188 states. [2022-09-29 21:58:21,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-09-29 21:58:21,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 432 states. [2022-09-29 21:58:21,549 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-09-29 21:58:21,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:58:21,719 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 21:58:21,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 21:58:21,720 INFO L85 PathProgramCache]: Analyzing trace with hash 511196965, now seen corresponding path program 1 times [2022-09-29 21:58:21,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 21:58:21,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562252954] [2022-09-29 21:58:21,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:58:21,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 21:58:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:58:44,789 INFO L134 CoverageAnalysis]: Checked inductivity of 7072 backedges. 2979 proven. 3459 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2022-09-29 21:58:44,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 21:58:44,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562252954] [2022-09-29 21:58:44,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562252954] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 21:58:44,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91617294] [2022-09-29 21:58:44,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 21:58:44,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:58:44,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 21:58:44,792 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) [2022-09-29 21:58:44,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-29 21:58:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 21:58:46,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 8459 conjuncts, 415 conjunts are in the unsatisfiable core [2022-09-29 21:58:46,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 21:58:46,746 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 [2022-09-29 21:58:47,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:58:47,353 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 [2022-09-29 21:58:48,777 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-29 21:58:48,778 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 [2022-09-29 21:58:48,920 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 [2022-09-29 21:59:01,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:59:01,583 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 [2022-09-29 21:59:18,169 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 6 treesize of output 5 [2022-09-29 21:59:21,121 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 [2022-09-29 21:59:22,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:59:22,741 INFO L356 Elim1Store]: treesize reduction 80, result has 17.5 percent of original size [2022-09-29 21:59:22,741 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 30 [2022-09-29 21:59:25,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:59:25,824 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2022-09-29 21:59:26,428 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 [2022-09-29 21:59:28,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 21:59:28,284 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 [2022-09-29 21:59:28,717 INFO L356 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2022-09-29 21:59:28,718 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 18 treesize of output 20 [2022-09-29 21:59:32,436 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 [2022-09-29 21:59:33,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-29 21:59:33,290 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 [2022-09-29 21:59:33,359 INFO L134 CoverageAnalysis]: Checked inductivity of 7072 backedges. 2905 proven. 3588 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2022-09-29 21:59:33,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 21:59:33,369 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1971 (Array Int Int))) (not (= (store |c_pusherThread1of1ForFork0_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_pusherThread1of1ForFork0_write~$Pointer$_#ptr#1.base| v_ArrVal_1971) |c_#memory_$Pointer$.base|))) is different from false [2022-09-29 21:59:33,429 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1971 (Array Int Int))) (not (= (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_ULTIMATE.start_write~$Pointer$_#ptr#1.base| (store (select |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_ULTIMATE.start_write~$Pointer$_#ptr#1.base|) |c_ULTIMATE.start_write~$Pointer$_#ptr#1.offset| |c_ULTIMATE.start_write~$Pointer$_#value#1.base|)) (store |c_pusherThread1of1ForFork0_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_pusherThread1of1ForFork0_write~$Pointer$_#ptr#1.base| v_ArrVal_1971)))) is different from false [2022-09-29 21:59:33,437 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1971 (Array Int Int))) (not (= (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| (store (select |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base|) |c_ULTIMATE.start_fifo_pop_#t~mem40#1.offset| |c_ULTIMATE.start_fifo_pop_#t~mem41#1.base|)) (store |c_pusherThread1of1ForFork0_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_pusherThread1of1ForFork0_write~$Pointer$_#ptr#1.base| v_ArrVal_1971)))) is different from false [2022-09-29 21:59:33,442 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1971 (Array Int Int))) (not (= (store |c_pusherThread1of1ForFork0_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_pusherThread1of1ForFork0_write~$Pointer$_#ptr#1.base| v_ArrVal_1971) (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base|) |c_ULTIMATE.start_fifo_pop_#t~mem40#1.offset| |c_ULTIMATE.start_fifo_pop_#t~mem41#1.base|))))) is different from false [2022-09-29 21:59:33,448 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1971 (Array Int Int))) (not (= (store |c_pusherThread1of1ForFork0_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_pusherThread1of1ForFork0_write~$Pointer$_#ptr#1.base| v_ArrVal_1971) (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base|) |c_ULTIMATE.start_fifo_pop_#t~mem40#1.offset| |c_ULTIMATE.start_read~$Pointer$_#value#1.base|))))) is different from false [2022-09-29 21:59:33,451 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1971 (Array Int Int))) (not (= (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base|) |c_ULTIMATE.start_fifo_pop_#t~mem40#1.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |c_ULTIMATE.start_read~$Pointer$_#ptr#1.offset|))) (store |c_pusherThread1of1ForFork0_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_pusherThread1of1ForFork0_write~$Pointer$_#ptr#1.base| v_ArrVal_1971)))) is different from false [2022-09-29 21:59:33,458 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1971 (Array Int Int))) (not (= (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| (let ((.cse0 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base|))) (store .cse0 |c_ULTIMATE.start_fifo_pop_#t~mem40#1.offset| (select .cse0 |c_ULTIMATE.start_fifo_pop_#t~mem40#1.offset|)))) (store |c_pusherThread1of1ForFork0_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_pusherThread1of1ForFork0_write~$Pointer$_#ptr#1.base| v_ArrVal_1971)))) is different from false [2022-09-29 21:59:33,464 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1971 (Array Int Int))) (not (= (store |c_pusherThread1of1ForFork0_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_pusherThread1of1ForFork0_write~$Pointer$_#ptr#1.base| v_ArrVal_1971) (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_read~$Pointer$_#value#1.base| (let ((.cse0 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_read~$Pointer$_#value#1.base|))) (store .cse0 |c_ULTIMATE.start_read~$Pointer$_#value#1.offset| (select .cse0 |c_ULTIMATE.start_read~$Pointer$_#value#1.offset|))))))) is different from false [2022-09-29 21:59:33,467 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1971 (Array Int Int))) (not (= (store |c_pusherThread1of1ForFork0_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_pusherThread1of1ForFork0_write~$Pointer$_#ptr#1.base| v_ArrVal_1971) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |c_ULTIMATE.start_read~$Pointer$_#ptr#1.offset|))) (store |c_#memory_$Pointer$.base| .cse0 (let ((.cse1 (select |c_#memory_$Pointer$.base| .cse0)) (.cse2 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |c_ULTIMATE.start_read~$Pointer$_#ptr#1.offset|))) (store .cse1 .cse2 (select .cse1 .cse2)))))))) is different from false [2022-09-29 21:59:33,475 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1971 (Array Int Int))) (not (= (store |c_pusherThread1of1ForFork0_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_pusherThread1of1ForFork0_write~$Pointer$_#ptr#1.base| v_ArrVal_1971) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|))) (store |c_#memory_$Pointer$.base| .cse0 (let ((.cse1 (select |c_#memory_$Pointer$.base| .cse0)) (.cse2 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|))) (store .cse1 .cse2 (select .cse1 .cse2)))))))) is different from false [2022-09-29 21:59:35,717 INFO L356 Elim1Store]: treesize reduction 568, result has 30.8 percent of original size [2022-09-29 21:59:35,719 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-09-29 21:59:35,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-09-29 21:59:35,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 21:59:35,920 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: |ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.base| input size 179 context size 179 output size 179 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:427) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:122) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-09-29 21:59:35,924 INFO L158 Benchmark]: Toolchain (without parser) took 521525.32ms. Allocated memory was 189.8MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 136.5MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-09-29 21:59:35,924 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.17ms. Allocated memory is still 189.8MB. Free memory is still 142.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 21:59:35,924 INFO L158 Benchmark]: Boogie Preprocessor took 118.03ms. Allocated memory is still 189.8MB. Free memory was 136.5MB in the beginning and 130.0MB in the end (delta: 6.5MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-09-29 21:59:35,924 INFO L158 Benchmark]: RCFGBuilder took 1367.56ms. Allocated memory was 189.8MB in the beginning and 252.7MB in the end (delta: 62.9MB). Free memory was 130.0MB in the beginning and 154.2MB in the end (delta: -24.2MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. [2022-09-29 21:59:35,925 INFO L158 Benchmark]: TraceAbstraction took 520034.81ms. Allocated memory was 252.7MB in the beginning and 3.2GB in the end (delta: 2.9GB). Free memory was 153.2MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-09-29 21:59:35,925 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.17ms. Allocated memory is still 189.8MB. Free memory is still 142.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 118.03ms. Allocated memory is still 189.8MB. Free memory was 136.5MB in the beginning and 130.0MB in the end (delta: 6.5MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1367.56ms. Allocated memory was 189.8MB in the beginning and 252.7MB in the end (delta: 62.9MB). Free memory was 130.0MB in the beginning and 154.2MB in the end (delta: -24.2MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. * TraceAbstraction took 520034.81ms. Allocated memory was 252.7MB in the beginning and 3.2GB in the end (delta: 2.9GB). Free memory was 153.2MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: |ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.base| input size 179 context size 179 output size 179 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: |ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.base| input size 179 context size 179 output size 179: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:364) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-09-29 21:59:35,972 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 [2022-09-29 21:59:36,201 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 0 Received shutdown request...