/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line897.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-03 15:57:31,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-03 15:57:31,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-03 15:57:31,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-03 15:57:31,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-03 15:57:31,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-03 15:57:31,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-03 15:57:31,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-03 15:57:31,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-03 15:57:31,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-03 15:57:31,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-03 15:57:31,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-03 15:57:31,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-03 15:57:31,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-03 15:57:31,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-03 15:57:31,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-03 15:57:31,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-03 15:57:31,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-03 15:57:31,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-03 15:57:31,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-03 15:57:31,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-03 15:57:31,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-03 15:57:31,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-03 15:57:31,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-03 15:57:31,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-03 15:57:31,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-03 15:57:31,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-03 15:57:31,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-03 15:57:31,211 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-03 15:57:31,227 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-03 15:57:31,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-03 15:57:31,228 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-03 15:57:31,228 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-03 15:57:31,228 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-03 15:57:31,228 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-03 15:57:31,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-03 15:57:31,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-03 15:57:31,229 INFO L138 SettingsManager]: * Use SBE=true [2022-10-03 15:57:31,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-03 15:57:31,229 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-03 15:57:31,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-03 15:57:31,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-03 15:57:31,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-03 15:57:31,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-03 15:57:31,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-03 15:57:31,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-03 15:57:31,230 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-03 15:57:31,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-03 15:57:31,230 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-03 15:57:31,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-03 15:57:31,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-03 15:57:31,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-03 15:57:31,230 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-03 15:57:31,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-03 15:57:31,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 15:57:31,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-03 15:57:31,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-03 15:57:31,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-03 15:57:31,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-03 15:57:31,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-03 15:57:31,231 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-03 15:57:31,231 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-03 15:57:31,231 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-03 15:57:31,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-03 15:57:31,231 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-03 15:57:31,231 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-03 15:57:31,231 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-03 15:57:31,232 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-03 15:57:31,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-03 15:57:31,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-03 15:57:31,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-03 15:57:31,409 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-03 15:57:31,410 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-03 15:57:31,411 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line897.bpl [2022-10-03 15:57:31,411 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line897.bpl' [2022-10-03 15:57:31,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-03 15:57:31,479 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-03 15:57:31,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-03 15:57:31,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-03 15:57:31,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-03 15:57:31,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo_1w1r.line897.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:57:31" (1/1) ... [2022-10-03 15:57:31,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo_1w1r.line897.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:57:31" (1/1) ... [2022-10-03 15:57:31,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line897.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:57:31" (1/1) ... [2022-10-03 15:57:31,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line897.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:57:31" (1/1) ... [2022-10-03 15:57:31,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo_1w1r.line897.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:57:31" (1/1) ... [2022-10-03 15:57:31,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo_1w1r.line897.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:57:31" (1/1) ... [2022-10-03 15:57:31,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo_1w1r.line897.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:57:31" (1/1) ... [2022-10-03 15:57:31,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-03 15:57:31,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-03 15:57:31,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-03 15:57:31,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-03 15:57:31,593 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo_1w1r.line897.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:57:31" (1/1) ... [2022-10-03 15:57:31,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 15:57:31,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:57:31,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-03 15:57:31,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-03 15:57:31,674 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-10-03 15:57:31,674 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-10-03 15:57:31,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-03 15:57:31,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-03 15:57:31,675 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-03 15:57:31,846 INFO L234 CfgBuilder]: Building ICFG [2022-10-03 15:57:31,847 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-03 15:57:32,880 INFO L275 CfgBuilder]: Performing block encoding [2022-10-03 15:57:32,904 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-03 15:57:32,905 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-03 15:57:32,907 INFO L202 PluginConnector]: Adding new model divinefifo_1w1r.line897.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 03:57:32 BoogieIcfgContainer [2022-10-03 15:57:32,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-03 15:57:32,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-03 15:57:32,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-03 15:57:32,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-03 15:57:32,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line897.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:57:31" (1/2) ... [2022-10-03 15:57:32,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63262a7e and model type divinefifo_1w1r.line897.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 03:57:32, skipping insertion in model container [2022-10-03 15:57:32,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line897.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 03:57:32" (2/2) ... [2022-10-03 15:57:32,930 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo_1w1r.line897.bpl [2022-10-03 15:57:32,935 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-03 15:57:32,943 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-03 15:57:32,944 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-03 15:57:32,944 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-03 15:57:33,080 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-03 15:57:33,152 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 15:57:33,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 15:57:33,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:57:33,154 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 15:57:33,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-10-03 15:57:33,191 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 15:57:33,199 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-03 15:57:33,207 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;@31d48bc2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 15:57:33,207 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 15:57:38,577 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:57:38,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:57:38,583 INFO L85 PathProgramCache]: Analyzing trace with hash 937758117, now seen corresponding path program 1 times [2022-10-03 15:57:38,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:57:38,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477076969] [2022-10-03 15:57:38,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:57:38,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:57:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:58:05,973 INFO L134 CoverageAnalysis]: Checked inductivity of 163824 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 163824 trivial. 0 not checked. [2022-10-03 15:58:05,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:58:05,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477076969] [2022-10-03 15:58:05,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477076969] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:58:05,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 15:58:05,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-03 15:58:05,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101971339] [2022-10-03 15:58:05,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:58:06,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-03 15:58:06,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:58:06,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-03 15:58:06,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-03 15:58:06,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:58:06,063 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:58:06,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 468.0) internal successors, (936), 2 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 15:58:06,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:58:06,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:58:06,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-03 15:58:06,112 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:58:06,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:58:06,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1607061399, now seen corresponding path program 1 times [2022-10-03 15:58:06,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:58:06,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710264972] [2022-10-03 15:58:06,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:58:06,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:58:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:58:06,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 15:58:06,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:58:06,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710264972] [2022-10-03 15:58:06,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710264972] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:58:06,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 15:58:06,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-10-03 15:58:06,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656707204] [2022-10-03 15:58:06,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:58:06,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-03 15:58:06,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:58:06,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-03 15:58:06,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2022-10-03 15:58:06,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:58:06,826 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:58:06,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 12.333333333333334) internal successors, (259), 22 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 15:58:06,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:58:06,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:58:09,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:58:09,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-03 15:58:09,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-03 15:58:09,648 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:58:09,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:58:09,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1183828416, now seen corresponding path program 1 times [2022-10-03 15:58:09,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:58:09,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103066636] [2022-10-03 15:58:09,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:58:09,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:58:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:58:14,412 INFO L134 CoverageAnalysis]: Checked inductivity of 9805 backedges. 3 proven. 2527 refuted. 0 times theorem prover too weak. 7275 trivial. 0 not checked. [2022-10-03 15:58:14,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:58:14,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103066636] [2022-10-03 15:58:14,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103066636] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 15:58:14,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900957426] [2022-10-03 15:58:14,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:58:14,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 15:58:14,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:58:14,455 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 15:58:14,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-03 15:58:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:58:15,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 7953 conjuncts, 73 conjunts are in the unsatisfiable core [2022-10-03 15:58:15,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 15:58:22,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:58:22,092 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 14 treesize of output 16 [2022-10-03 15:58:26,265 INFO L134 CoverageAnalysis]: Checked inductivity of 9805 backedges. 0 proven. 5759 refuted. 0 times theorem prover too weak. 4046 trivial. 0 not checked. [2022-10-03 15:58:26,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 15:58:40,752 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 15:58:40,752 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 41 treesize of output 45 [2022-10-03 15:58:42,250 INFO L134 CoverageAnalysis]: Checked inductivity of 9805 backedges. 0 proven. 5494 refuted. 0 times theorem prover too weak. 4311 trivial. 0 not checked. [2022-10-03 15:58:42,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900957426] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 15:58:42,251 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 15:58:42,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 27, 18] total 59 [2022-10-03 15:58:42,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350537325] [2022-10-03 15:58:42,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 15:58:42,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-10-03 15:58:42,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:58:42,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-10-03 15:58:42,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=3331, Unknown=0, NotChecked=0, Total=3540 [2022-10-03 15:58:42,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:58:42,265 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:58:42,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 59 states have (on average 71.86440677966101) internal successors, (4240), 60 states have internal predecessors, (4240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 15:58:42,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:58:42,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-10-03 15:58:42,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:58:59,430 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#length| |c_ULTIMATE.start_fifo_empty_#in~self#1.base|)) (.cse0 (+ 8 |c_ULTIMATE.start_main_~#q~1#1.offset|)) (.cse2 (select |c_#length| |c_ULTIMATE.start_main_~#q~1#1.base|))) (and (= |c_ULTIMATE.start_fifo_front_#in~self#1.offset| 0) (<= 0 |c_ULTIMATE.start_read~$Pointer$_#ptr#1.offset|) (= |c_ULTIMATE.start_main_~#q~1#1.base| |c_ULTIMATE.start_fifo_drop_head_#in~self#1.base|) (= |c_ULTIMATE.start_fifo_drop_head_~self#1.base| |c_ULTIMATE.start_main_~#q~1#1.base|) (<= 8 (select |c_#length| |c_ULTIMATE.start_fifo_front_~self#1.base|)) (< |c_#StackHeapBarrier| |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base|) (= |c_ULTIMATE.start_fifo_front_~self#1.offset| 0) (<= 8 (select |c_#length| |c_ULTIMATE.start_fifo_front_#in~self#1.base|)) (= |c_ULTIMATE.start_fifo_empty_#in~self#1.offset| 0) (= |c_ULTIMATE.start_main_~#q~1#1.base| |c_ULTIMATE.start_fifo_init_~self#1.base|) (<= 8 (select |c_#length| |c_ULTIMATE.start_fifo_empty_~self#1.base|)) (forall ((|pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| Int)) (or (not (< |pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| |c_#StackHeapBarrier|)) (forall ((v_ArrVal_1401 Int)) (< (+ 7 |c_ULTIMATE.start_main_~#q~1#1.offset|) (select (store |c_#length| |pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| v_ArrVal_1401) |c_ULTIMATE.start_main_~#q~1#1.base|))))) (not (< |c_ULTIMATE.start_main_~#q~1#1.base| |c_#StackHeapBarrier|)) (< |c_ULTIMATE.start_main_~#q~1#1.offset| (+ |c_ULTIMATE.start_fifo_empty_~self#1.offset| 1)) (= |c_ULTIMATE.start_main_~#q~1#1.offset| 0) (<= |c_ULTIMATE.start_main_~#q~1#1.offset| |c_ULTIMATE.start_fifo_pop_#in~self#1.offset|) (= |c_ULTIMATE.start_fifo_empty_~self#1.base| |c_ULTIMATE.start_main_~#q~1#1.base|) (= |c_ULTIMATE.start_main_~#q~1#1.base| |c_ULTIMATE.start_fifo_front_~self#1.base|) (<= (+ |c_ULTIMATE.start_read~$Pointer$_#sizeOfReadType#1| |c_ULTIMATE.start_read~$Pointer$_#ptr#1.offset|) (select |c_#length| |c_ULTIMATE.start_read~$Pointer$_#ptr#1.base|)) (= |c_ULTIMATE.start_fifo_empty_~self#1.offset| 0) (< |c_ULTIMATE.start_main_~#q~1#1.offset| (+ |c_ULTIMATE.start_fifo_empty_#in~self#1.offset| 1)) (<= .cse0 .cse1) (<= 8 .cse1) (forall ((|pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| Int)) (or (not (< |pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| |c_#StackHeapBarrier|)) (forall ((v_ArrVal_1401 Int)) (< (+ 7 |c_ULTIMATE.start_main_~#q~1#1.offset|) (select (store |c_pusherThread1of1ForFork0_#Ultimate.allocOnHeap_old_#length#1| |pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| v_ArrVal_1401) |c_ULTIMATE.start_main_~#q~1#1.base|))))) (= |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.offset| 0) (= |c_ULTIMATE.start_fifo_init_#in~self#1.base| |c_ULTIMATE.start_main_~#q~1#1.base|) (<= (+ |c_ULTIMATE.start_fifo_empty_~self#1.offset| 8) .cse2) (= |c_ULTIMATE.start_main_~#q~1#1.base| |c_ULTIMATE.start_fifo_pop_#in~self#1.base|) (<= 0 |c_ULTIMATE.start_main_~#q~1#1.offset|) (= |c_ULTIMATE.start_fifo_empty_#in~self#1.base| |c_ULTIMATE.start_main_~#q~1#1.base|) (= |c_ULTIMATE.start_fifo_front_#in~self#1.base| |c_ULTIMATE.start_main_~#q~1#1.base|) (= |c_ULTIMATE.start_fifo_pop_#in~self#1.offset| 0) (<= .cse0 .cse2) (<= 0 (+ 4 |c_ULTIMATE.start_main_~#q~1#1.offset|)) (< |c_#StackHeapBarrier| |c_ULTIMATE.start_main_~#q~1#1.base|) (<= 0 |c_ULTIMATE.start_#Ultimate.allocOnStack_#res#1.offset|))) is different from false [2022-10-03 15:59:03,607 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((|pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| Int)) (or (not (< |pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| |c_#StackHeapBarrier|)) (forall ((v_ArrVal_1401 Int)) (< (+ 7 |c_ULTIMATE.start_main_~#q~1#1.offset|) (select (store |c_#length| |pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| v_ArrVal_1401) |c_ULTIMATE.start_main_~#q~1#1.base|))))) (forall ((v_ArrVal_1401 Int)) (< (+ 7 |c_ULTIMATE.start_main_~#q~1#1.offset|) (select (store |c_pusherThread1of1ForFork0_#Ultimate.allocOnHeap_old_#length#1| |c_pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| v_ArrVal_1401) |c_ULTIMATE.start_main_~#q~1#1.base|))) (forall ((|pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| Int)) (or (not (< |pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| |c_#StackHeapBarrier|)) (forall ((v_ArrVal_1401 Int)) (< (+ 7 |c_ULTIMATE.start_main_~#q~1#1.offset|) (select (store |c_pusherThread1of1ForFork0_#Ultimate.allocOnHeap_old_#length#1| |pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| v_ArrVal_1401) |c_ULTIMATE.start_main_~#q~1#1.base|))))) (<= 0 (+ 4 |c_ULTIMATE.start_main_~#q~1#1.offset|))) is different from false [2022-10-03 15:59:17,280 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#length| |c_ULTIMATE.start_fifo_empty_#in~self#1.base|)) (.cse0 (+ 8 |c_ULTIMATE.start_main_~#q~1#1.offset|)) (.cse2 (select |c_#length| |c_ULTIMATE.start_main_~#q~1#1.base|))) (and (= |c_ULTIMATE.start_fifo_front_#in~self#1.offset| 0) (<= 0 |c_ULTIMATE.start_read~$Pointer$_#ptr#1.offset|) (= |c_ULTIMATE.start_main_~#q~1#1.base| |c_ULTIMATE.start_fifo_drop_head_#in~self#1.base|) (= |c_ULTIMATE.start_fifo_drop_head_~self#1.base| |c_ULTIMATE.start_main_~#q~1#1.base|) (<= 8 (select |c_#length| |c_ULTIMATE.start_fifo_front_~self#1.base|)) (= |c_ULTIMATE.start_fifo_front_~self#1.offset| 0) (<= 8 (select |c_#length| |c_ULTIMATE.start_fifo_front_#in~self#1.base|)) (= |c_ULTIMATE.start_fifo_empty_#in~self#1.offset| 0) (<= 8 (select |c_#length| |c_ULTIMATE.start_fifo_empty_~self#1.base|)) (forall ((|pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| Int)) (or (not (< |pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| |c_#StackHeapBarrier|)) (forall ((v_ArrVal_1401 Int)) (< (+ 7 |c_ULTIMATE.start_main_~#q~1#1.offset|) (select (store |c_#length| |pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| v_ArrVal_1401) |c_ULTIMATE.start_main_~#q~1#1.base|))))) (not (< |c_ULTIMATE.start_main_~#q~1#1.base| |c_#StackHeapBarrier|)) (< |c_ULTIMATE.start_main_~#q~1#1.offset| (+ |c_ULTIMATE.start_fifo_empty_~self#1.offset| 1)) (= |c_ULTIMATE.start_main_~#q~1#1.offset| 0) (<= |c_ULTIMATE.start_main_~#q~1#1.offset| |c_ULTIMATE.start_fifo_pop_#in~self#1.offset|) (= |c_ULTIMATE.start_fifo_empty_~self#1.base| |c_ULTIMATE.start_main_~#q~1#1.base|) (= |c_ULTIMATE.start_main_~#q~1#1.base| |c_ULTIMATE.start_fifo_front_~self#1.base|) (<= (+ |c_ULTIMATE.start_read~$Pointer$_#sizeOfReadType#1| |c_ULTIMATE.start_read~$Pointer$_#ptr#1.offset|) (select |c_#length| |c_ULTIMATE.start_read~$Pointer$_#ptr#1.base|)) (= |c_ULTIMATE.start_fifo_empty_~self#1.offset| 0) (< |c_ULTIMATE.start_main_~#q~1#1.offset| (+ |c_ULTIMATE.start_fifo_empty_#in~self#1.offset| 1)) (<= .cse0 .cse1) (<= 8 .cse1) (forall ((|pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| Int)) (or (not (< |pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| |c_#StackHeapBarrier|)) (forall ((v_ArrVal_1401 Int)) (< (+ 7 |c_ULTIMATE.start_main_~#q~1#1.offset|) (select (store |c_pusherThread1of1ForFork0_#Ultimate.allocOnHeap_old_#length#1| |pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| v_ArrVal_1401) |c_ULTIMATE.start_main_~#q~1#1.base|))))) (<= (+ |c_ULTIMATE.start_fifo_empty_~self#1.offset| 8) .cse2) (= |c_ULTIMATE.start_main_~#q~1#1.base| |c_ULTIMATE.start_fifo_pop_#in~self#1.base|) (<= 0 |c_ULTIMATE.start_main_~#q~1#1.offset|) (= |c_ULTIMATE.start_fifo_empty_#in~self#1.base| |c_ULTIMATE.start_main_~#q~1#1.base|) (= |c_ULTIMATE.start_fifo_front_#in~self#1.base| |c_ULTIMATE.start_main_~#q~1#1.base|) (= |c_ULTIMATE.start_fifo_pop_#in~self#1.offset| 0) (<= .cse0 .cse2) (<= 0 (+ 4 |c_ULTIMATE.start_main_~#q~1#1.offset|)) (< |c_#StackHeapBarrier| |c_ULTIMATE.start_main_~#q~1#1.base|))) is different from false [2022-10-03 15:59:19,283 WARN L833 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_main_~#q~1#1.offset| 0) (<= 8 (select |c_#length| |c_ULTIMATE.start_main_~#q~1#1.base|)) (forall ((|pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| Int)) (or (not (< |pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| |c_#StackHeapBarrier|)) (forall ((v_ArrVal_1401 Int)) (< (+ 7 |c_ULTIMATE.start_main_~#q~1#1.offset|) (select (store |c_pusherThread1of1ForFork0_#Ultimate.allocOnHeap_old_#length#1| |pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| v_ArrVal_1401) |c_ULTIMATE.start_main_~#q~1#1.base|))))) (<= 0 (+ 4 |c_ULTIMATE.start_main_~#q~1#1.offset|))) is different from false [2022-10-03 15:59:25,820 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((|pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| Int)) (or (not (< |pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| |c_#StackHeapBarrier|)) (forall ((v_ArrVal_1401 Int)) (< (+ 7 |c_ULTIMATE.start_main_~#q~1#1.offset|) (select (store |c_pusherThread1of1ForFork0_#Ultimate.allocOnHeap_old_#length#1| |pusherThread1of1ForFork0_#Ultimate.allocOnHeap_#res#1.base| v_ArrVal_1401) |c_ULTIMATE.start_main_~#q~1#1.base|))))) (< (+ 7 |c_ULTIMATE.start_main_~#q~1#1.offset|) (select |c_#length| |c_ULTIMATE.start_main_~#q~1#1.base|)) (<= 0 (+ 4 |c_ULTIMATE.start_main_~#q~1#1.offset|))) is different from false [2022-10-03 15:59:39,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:59:39,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-03 15:59:39,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 294 states. [2022-10-03 15:59:40,001 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-03 15:59:40,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-10-03 15:59:40,183 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:59:40,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:59:40,186 INFO L85 PathProgramCache]: Analyzing trace with hash -2043009726, now seen corresponding path program 1 times [2022-10-03 15:59:40,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:59:40,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488447011] [2022-10-03 15:59:40,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:59:40,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:59:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat