/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.line918.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-09-29 23:06:08,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 23:06:08,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 23:06:09,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 23:06:09,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 23:06:09,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 23:06:09,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 23:06:09,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 23:06:09,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 23:06:09,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 23:06:09,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 23:06:09,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 23:06:09,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 23:06:09,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 23:06:09,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 23:06:09,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 23:06:09,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 23:06:09,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 23:06:09,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 23:06:09,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 23:06:09,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 23:06:09,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 23:06:09,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 23:06:09,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 23:06:09,043 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 23:06:09,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 23:06:09,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 23:06:09,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 23:06:09,053 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-29 23:06:09,089 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 23:06:09,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 23:06:09,090 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 23:06:09,090 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 23:06:09,091 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-29 23:06:09,091 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-29 23:06:09,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 23:06:09,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 23:06:09,092 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 23:06:09,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 23:06:09,093 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 23:06:09,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 23:06:09,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 23:06:09,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 23:06:09,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-29 23:06:09,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-29 23:06:09,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-29 23:06:09,094 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 23:06:09,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 23:06:09,094 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 23:06:09,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-29 23:06:09,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 23:06:09,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 23:06:09,095 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-29 23:06:09,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-29 23:06:09,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 23:06:09,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 23:06:09,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-29 23:06:09,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-29 23:06:09,097 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 23:06:09,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-29 23:06:09,097 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-29 23:06:09,097 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-29 23:06:09,097 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-29 23:06:09,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-29 23:06:09,098 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-29 23:06:09,098 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-29 23:06:09,098 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-29 23:06:09,098 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 23:06:09,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 23:06:09,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 23:06:09,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 23:06:09,404 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 23:06:09,405 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 23:06:09,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line918.bpl [2022-09-29 23:06:09,406 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line918.bpl' [2022-09-29 23:06:09,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 23:06:09,510 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-29 23:06:09,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 23:06:09,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 23:06:09,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 23:06:09,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo_1w1r.line918.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 11:06:09" (1/1) ... [2022-09-29 23:06:09,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo_1w1r.line918.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 11:06:09" (1/1) ... [2022-09-29 23:06:09,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line918.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 11:06:09" (1/1) ... [2022-09-29 23:06:09,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line918.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 11:06:09" (1/1) ... [2022-09-29 23:06:09,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo_1w1r.line918.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 11:06:09" (1/1) ... [2022-09-29 23:06:09,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo_1w1r.line918.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 11:06:09" (1/1) ... [2022-09-29 23:06:09,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo_1w1r.line918.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 11:06:09" (1/1) ... [2022-09-29 23:06:09,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 23:06:09,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 23:06:09,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 23:06:09,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 23:06:09,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo_1w1r.line918.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 11:06:09" (1/1) ... [2022-09-29 23:06:09,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 23:06:09,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 23:06:09,725 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 23:06:09,748 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 23:06:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-09-29 23:06:09,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-09-29 23:06:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 23:06:09,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 23:06:09,770 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 23:06:09,946 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 23:06:09,948 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 23:06:11,128 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 23:06:11,147 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 23:06:11,147 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-09-29 23:06:11,150 INFO L202 PluginConnector]: Adding new model divinefifo_1w1r.line918.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 11:06:11 BoogieIcfgContainer [2022-09-29 23:06:11,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 23:06:11,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-29 23:06:11,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-29 23:06:11,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-29 23:06:11,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line918.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 11:06:09" (1/2) ... [2022-09-29 23:06:11,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2feda083 and model type divinefifo_1w1r.line918.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.09 11:06:11, skipping insertion in model container [2022-09-29 23:06:11,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line918.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 11:06:11" (2/2) ... [2022-09-29 23:06:11,160 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo_1w1r.line918.bpl [2022-09-29 23:06:11,167 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-29 23:06:11,175 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-29 23:06:11,175 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-29 23:06:11,175 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-29 23:06:11,299 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-29 23:06:11,361 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 23:06:11,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 23:06:11,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 23:06:11,363 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 23:06:11,391 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 23:06:11,429 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 23:06:11,436 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-09-29 23:06:11,441 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;@fabc94b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 23:06:11,442 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 23:06:17,556 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 23:06:17,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 23:06:17,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1214049805, now seen corresponding path program 1 times [2022-09-29 23:06:17,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 23:06:17,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743644532] [2022-09-29 23:06:17,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 23:06:17,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 23:06:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 23:06:55,691 INFO L134 CoverageAnalysis]: Checked inductivity of 163824 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 163824 trivial. 0 not checked. [2022-09-29 23:06:55,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 23:06:55,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743644532] [2022-09-29 23:06:55,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743644532] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 23:06:55,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 23:06:55,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-29 23:06:55,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343462136] [2022-09-29 23:06:55,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 23:06:55,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-29 23:06:55,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 23:06:55,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-29 23:06:55,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-29 23:06:55,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:06:55,857 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 23:06:55,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 477.0) internal successors, (954), 2 states have internal predecessors, (954), 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 23:06:55,869 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:06:55,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:06:55,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-29 23:06:55,951 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 23:06:55,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 23:06:55,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1333238287, now seen corresponding path program 1 times [2022-09-29 23:06:55,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 23:06:55,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319908176] [2022-09-29 23:06:55,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 23:06:55,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 23:06:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 23:06:57,091 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 23:06:57,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 23:06:57,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319908176] [2022-09-29 23:06:57,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319908176] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 23:06:57,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 23:06:57,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-09-29 23:06:57,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249528155] [2022-09-29 23:06:57,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 23:06:57,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-09-29 23:06:57,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 23:06:57,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-09-29 23:06:57,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2022-09-29 23:06:57,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:06:57,099 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 23:06:57,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 9.233333333333333) internal successors, (277), 31 states have internal predecessors, (277), 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 23:06:57,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:06:57,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:07:05,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:07:05,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-09-29 23:07:05,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-29 23:07:05,266 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 23:07:05,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 23:07:05,267 INFO L85 PathProgramCache]: Analyzing trace with hash 2139270589, now seen corresponding path program 1 times [2022-09-29 23:07:05,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 23:07:05,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216144234] [2022-09-29 23:07:05,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 23:07:05,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 23:07:06,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 23:07:12,735 INFO L134 CoverageAnalysis]: Checked inductivity of 34899 backedges. 43 proven. 345 refuted. 0 times theorem prover too weak. 34511 trivial. 0 not checked. [2022-09-29 23:07:12,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 23:07:12,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216144234] [2022-09-29 23:07:12,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216144234] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 23:07:12,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543348649] [2022-09-29 23:07:12,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 23:07:12,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 23:07:12,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 23:07:12,743 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 23:07:12,745 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 23:07:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 23:07:15,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 14938 conjuncts, 177 conjunts are in the unsatisfiable core [2022-09-29 23:07:15,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 23:07:20,638 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 23:07:20,652 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 23:07:22,441 INFO L356 Elim1Store]: treesize reduction 104, result has 14.0 percent of original size [2022-09-29 23:07:22,442 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 59 treesize of output 40 [2022-09-29 23:07:22,457 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-09-29 23:07:22,457 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 32 [2022-09-29 23:07:22,478 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-09-29 23:07:23,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 18 [2022-09-29 23:07:23,796 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 28 treesize of output 10 [2022-09-29 23:07:24,058 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 23:07:24,179 INFO L134 CoverageAnalysis]: Checked inductivity of 34899 backedges. 20129 proven. 522 refuted. 0 times theorem prover too weak. 14248 trivial. 0 not checked. [2022-09-29 23:07:24,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 23:07:24,317 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 10 treesize of output 8 [2022-09-29 23:07:25,455 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base|) |c_ULTIMATE.start_fifo_pop_#t~mem40#1.offset| |c_ULTIMATE.start_fifo_pop_#t~mem41#1.base|)) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (let ((.cse2 (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|))) (or (and (forall ((v_ArrVal_2061 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_2061) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|) (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4))))) (= (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) .cse2)) (= |c_ULTIMATE.start_fifo_pop_~self#1.base| .cse2)))) is different from false [2022-09-29 23:07:25,603 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select (store |c_#memory_$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$_#ptr#1.offset|))) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (let ((.cse2 (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|))) (or (and (forall ((v_ArrVal_2061 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_2061) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|) (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4))))) (= (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) .cse2)) (= |c_ULTIMATE.start_fifo_pop_~self#1.base| .cse2)))) is different from false [2022-09-29 23:07:27,267 INFO L134 CoverageAnalysis]: Checked inductivity of 34899 backedges. 19594 proven. 0 refuted. 0 times theorem prover too weak. 15305 trivial. 0 not checked. [2022-09-29 23:07:27,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543348649] provided 1 perfect and 1 imperfect interpolant sequences [2022-09-29 23:07:27,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-09-29 23:07:27,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [17, 53] total 101 [2022-09-29 23:07:27,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529626326] [2022-09-29 23:07:27,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 23:07:27,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-09-29 23:07:27,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 23:07:27,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-09-29 23:07:27,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=596, Invalid=9021, Unknown=93, NotChecked=390, Total=10100 [2022-09-29 23:07:27,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:07:27,279 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 23:07:27,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 46.0) internal successors, (1656), 36 states have internal predecessors, (1656), 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 23:07:27,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:07:27,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-09-29 23:07:27,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:07:37,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 23:07:37,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-09-29 23:07:37,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-09-29 23:07:37,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-09-29 23:07:37,528 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 23:07:37,528 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 23:07:37,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 23:07:37,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1045302038, now seen corresponding path program 1 times [2022-09-29 23:07:37,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 23:07:37,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245901151] [2022-09-29 23:07:37,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 23:07:37,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 23:07:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat