/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 00:20:12,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 00:20:12,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 00:20:12,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-02 00:20:12,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-02 00:20:12,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-02 00:20:12,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-02 00:20:12,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-02 00:20:12,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-02 00:20:12,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-02 00:20:12,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-02 00:20:12,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-02 00:20:12,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 00:20:12,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 00:20:12,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 00:20:12,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 00:20:12,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 00:20:12,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 00:20:12,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 00:20:12,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 00:20:12,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 00:20:12,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 00:20:12,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 00:20:12,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 00:20:12,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-02 00:20:12,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 00:20:12,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 00:20:12,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 00:20:12,967 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-02 00:20:12,984 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 00:20:12,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 00:20:12,985 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 00:20:12,985 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 00:20:12,986 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 00:20:12,986 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 00:20:12,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 00:20:12,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 00:20:12,987 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 00:20:12,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 00:20:12,987 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 00:20:12,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 00:20:12,987 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 00:20:12,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 00:20:12,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 00:20:12,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 00:20:12,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 00:20:12,988 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 00:20:12,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 00:20:12,988 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 00:20:12,989 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 00:20:12,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 00:20:12,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 00:20:12,989 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 00:20:12,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 00:20:12,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 00:20:12,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 00:20:12,989 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 00:20:12,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 00:20:12,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 00:20:12,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 00:20:12,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 00:20:12,990 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 00:20:12,990 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 00:20:12,990 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 00:20:12,991 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-02 00:20:12,991 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-02 00:20:12,991 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-02 00:20:12,991 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 00:20:13,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 00:20:13,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 00:20:13,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 00:20:13,209 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-02 00:20:13,211 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-02 00:20:13,212 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl [2022-03-02 00:20:13,213 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl' [2022-03-02 00:20:13,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 00:20:13,237 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-02 00:20:13,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 00:20:13,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 00:20:13,239 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 00:20:13,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:13" (1/1) ... [2022-03-02 00:20:13,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:13" (1/1) ... [2022-03-02 00:20:13,262 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-02 00:20:13,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 00:20:13,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 00:20:13,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 00:20:13,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 00:20:13,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:13" (1/1) ... [2022-03-02 00:20:13,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:13" (1/1) ... [2022-03-02 00:20:13,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:13" (1/1) ... [2022-03-02 00:20:13,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:13" (1/1) ... [2022-03-02 00:20:13,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:13" (1/1) ... [2022-03-02 00:20:13,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:13" (1/1) ... [2022-03-02 00:20:13,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:13" (1/1) ... [2022-03-02 00:20:13,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 00:20:13,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 00:20:13,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 00:20:13,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 00:20:13,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:13" (1/1) ... [2022-03-02 00:20:13,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 00:20:13,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:20:13,317 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) [2022-03-02 00:20:13,336 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 [2022-03-02 00:20:13,357 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-02 00:20:13,357 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-02 00:20:13,357 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-02 00:20:13,358 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-02 00:20:13,358 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-02 00:20:13,358 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-02 00:20:13,358 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-02 00:20:13,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 00:20:13,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 00:20:13,358 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-02 00:20:13,358 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-02 00:20:13,359 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-02 00:20:13,360 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-02 00:20:13,398 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 00:20:13,399 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 00:20:13,471 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 00:20:13,484 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 00:20:13,485 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-02 00:20:13,486 INFO L202 PluginConnector]: Adding new model sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 12:20:13 BoogieIcfgContainer [2022-03-02 00:20:13,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 00:20:13,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 00:20:13,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 00:20:13,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 00:20:13,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 12:20:13" (1/2) ... [2022-03-02 00:20:13,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48468177 and model type sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 12:20:13, skipping insertion in model container [2022-03-02 00:20:13,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 12:20:13" (2/2) ... [2022-03-02 00:20:13,497 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun-alt.wvr.bpl [2022-03-02 00:20:13,501 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 00:20:13,501 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 00:20:13,501 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 00:20:13,501 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 00:20:13,541 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-02 00:20:13,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 00:20:13,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:20:13,579 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) [2022-03-02 00:20:13,584 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 [2022-03-02 00:20:13,608 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 00:20:13,615 INFO L339 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, mLazyFiniteAutomaton=true, 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, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-02 00:20:13,615 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-02 00:20:14,051 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1682 transitions and produced 636 states. [2022-03-02 00:20:14,053 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:20:14,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:20:14,059 INFO L85 PathProgramCache]: Analyzing trace with hash -189379526, now seen corresponding path program 1 times [2022-03-02 00:20:14,066 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:20:14,067 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474965647] [2022-03-02 00:20:14,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:20:14,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:20:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:20:14,474 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:14,475 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:20:14,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474965647] [2022-03-02 00:20:14,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474965647] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:20:14,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416554816] [2022-03-02 00:20:14,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:20:14,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:14,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:20:14,484 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) [2022-03-02 00:20:14,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-02 00:20:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:20:14,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-02 00:20:14,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:20:14,905 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-02 00:20:14,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:20:15,151 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-02 00:20:15,151 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416554816] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:20:15,152 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:20:15,152 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 23 [2022-03-02 00:20:15,154 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894982419] [2022-03-02 00:20:15,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:20:15,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-02 00:20:15,162 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:20:15,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-02 00:20:15,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-03-02 00:20:15,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:15,189 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:20:15,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 23 states have internal predecessors, (68), 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) [2022-03-02 00:20:15,192 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:15,783 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1693 transitions and produced 647 states. [2022-03-02 00:20:15,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:20:15,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-02 00:20:16,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-02 00:20:16,008 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:20:16,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:20:16,009 INFO L85 PathProgramCache]: Analyzing trace with hash 420505112, now seen corresponding path program 2 times [2022-03-02 00:20:16,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:20:16,009 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081153420] [2022-03-02 00:20:16,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:20:16,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:20:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:20:16,134 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 21 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-02 00:20:16,134 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:20:16,135 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081153420] [2022-03-02 00:20:16,135 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081153420] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:20:16,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541972626] [2022-03-02 00:20:16,136 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 00:20:16,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:16,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:20:16,139 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) [2022-03-02 00:20:16,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-02 00:20:16,179 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 00:20:16,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:20:16,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-02 00:20:16,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:20:16,378 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-02 00:20:16,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:20:16,539 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-02 00:20:16,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541972626] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:20:16,540 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:20:16,540 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 23 [2022-03-02 00:20:16,540 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316229514] [2022-03-02 00:20:16,541 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:20:16,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-02 00:20:16,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:20:16,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-02 00:20:16,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2022-03-02 00:20:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:16,543 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:20:16,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 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) [2022-03-02 00:20:16,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:20:16,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:17,197 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1704 transitions and produced 658 states. [2022-03-02 00:20:17,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:20:17,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:20:17,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-02 00:20:17,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:17,421 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:20:17,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:20:17,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1890877322, now seen corresponding path program 3 times [2022-03-02 00:20:17,422 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:20:17,422 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84643876] [2022-03-02 00:20:17,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:20:17,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:20:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:20:17,573 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 22 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:17,573 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:20:17,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84643876] [2022-03-02 00:20:17,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84643876] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:20:17,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096775089] [2022-03-02 00:20:17,574 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 00:20:17,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:17,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:20:17,576 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) [2022-03-02 00:20:17,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-02 00:20:17,620 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-03-02 00:20:17,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:20:17,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 12 conjunts are in the unsatisfiable core [2022-03-02 00:20:17,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:20:17,924 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 11 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-02 00:20:17,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:20:18,255 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 26 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-02 00:20:18,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096775089] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:20:18,256 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:20:18,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 13] total 35 [2022-03-02 00:20:18,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447431311] [2022-03-02 00:20:18,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:20:18,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-03-02 00:20:18,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:20:18,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-03-02 00:20:18,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=974, Unknown=0, NotChecked=0, Total=1190 [2022-03-02 00:20:18,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:18,260 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:20:18,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.5428571428571427) internal successors, (89), 35 states have internal predecessors, (89), 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) [2022-03-02 00:20:18,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:20:18,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:20:18,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:18,713 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 237 transitions and produced 184 states. [2022-03-02 00:20:18,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:20:18,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:20:18,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:18,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-02 00:20:18,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:18,924 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:20:18,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:20:18,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1663662932, now seen corresponding path program 4 times [2022-03-02 00:20:18,925 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:20:18,925 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189176998] [2022-03-02 00:20:18,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:20:18,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:20:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:20:19,120 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 22 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:19,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:20:19,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189176998] [2022-03-02 00:20:19,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189176998] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:20:19,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633450608] [2022-03-02 00:20:19,121 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 00:20:19,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:19,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:20:19,122 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) [2022-03-02 00:20:19,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-02 00:20:19,164 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 00:20:19,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:20:19,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-02 00:20:19,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:20:19,457 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 30 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-02 00:20:19,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:20:19,695 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 30 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-02 00:20:19,695 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633450608] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:20:19,696 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:20:19,696 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14, 14] total 35 [2022-03-02 00:20:19,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684379545] [2022-03-02 00:20:19,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:20:19,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-03-02 00:20:19,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:20:19,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-03-02 00:20:19,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=994, Unknown=0, NotChecked=0, Total=1190 [2022-03-02 00:20:19,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:19,701 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:20:19,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.657142857142857) internal successors, (93), 35 states have internal predecessors, (93), 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) [2022-03-02 00:20:19,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:20:19,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:20:19,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:19,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:20,395 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1726 transitions and produced 680 states. [2022-03-02 00:20:20,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:20:20,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:20:20,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:20,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:20,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-02 00:20:20,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:20,620 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:20:20,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:20:20,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1217120590, now seen corresponding path program 5 times [2022-03-02 00:20:20,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:20:20,620 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078286267] [2022-03-02 00:20:20,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:20:20,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:20:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:20:20,784 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 22 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:20,784 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:20:20,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078286267] [2022-03-02 00:20:20,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078286267] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:20:20,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579060021] [2022-03-02 00:20:20,785 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-02 00:20:20,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:20,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:20:20,788 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) [2022-03-02 00:20:20,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-02 00:20:20,854 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-03-02 00:20:20,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:20:20,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 17 conjunts are in the unsatisfiable core [2022-03-02 00:20:20,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:20:21,207 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 22 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:21,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:20:21,645 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 34 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:21,645 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579060021] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:20:21,645 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:20:21,645 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 47 [2022-03-02 00:20:21,646 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820889070] [2022-03-02 00:20:21,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:20:21,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-03-02 00:20:21,646 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:20:21,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-03-02 00:20:21,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=404, Invalid=1758, Unknown=0, NotChecked=0, Total=2162 [2022-03-02 00:20:21,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:21,648 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:20:21,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.382978723404255) internal successors, (112), 47 states have internal predecessors, (112), 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) [2022-03-02 00:20:21,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:20:21,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:20:21,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:21,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:21,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:22,302 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 270 transitions and produced 215 states. [2022-03-02 00:20:22,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:20:22,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:20:22,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:22,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:22,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-02 00:20:22,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-02 00:20:22,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:22,520 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:20:22,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:20:22,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1818267922, now seen corresponding path program 6 times [2022-03-02 00:20:22,520 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:20:22,520 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753737335] [2022-03-02 00:20:22,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:20:22,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:20:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:20:23,873 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 6 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:23,873 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:20:23,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753737335] [2022-03-02 00:20:23,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753737335] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:20:23,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490497027] [2022-03-02 00:20:23,874 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-02 00:20:23,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:20:23,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:20:23,875 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) [2022-03-02 00:20:23,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-02 00:20:23,924 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-03-02 00:20:23,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:20:23,925 WARN L261 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 78 conjunts are in the unsatisfiable core [2022-03-02 00:20:23,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:20:25,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:25,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:25,564 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:25,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:25,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:25,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:25,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:25,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:25,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:25,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:25,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:25,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:25,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:25,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:25,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:25,580 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 28 disjoint index pairs (out of 55 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 37 [2022-03-02 00:20:25,697 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:25,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:20:27,569 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,570 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,575 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:27,582 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,582 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,584 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,585 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,585 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,587 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,587 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,589 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,590 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:27,592 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,592 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,592 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,593 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,596 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,596 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,597 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,598 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,598 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,600 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,600 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,602 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,602 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,604 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,605 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:27,610 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,611 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,614 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,614 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,616 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:27,842 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-02 00:20:27,843 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 38 disjoint index pairs (out of 120 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 79 treesize of output 460 [2022-03-02 00:20:31,601 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,601 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,602 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,602 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,602 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,603 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,603 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,603 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,604 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,604 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,604 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,605 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:31,606 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,606 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,607 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,607 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,608 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,608 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,608 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,608 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,609 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,609 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,609 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,610 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,610 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,610 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,611 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,611 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,611 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:31,614 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,616 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:31,617 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,617 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,617 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,626 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,626 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:31,628 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,629 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,629 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:31,630 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:31,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:20:31,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:20:31,633 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 28 disjoint index pairs (out of 120 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 3 [2022-03-02 00:20:31,837 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:20:31,838 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490497027] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:20:31,838 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:20:31,838 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 25, 26] total 65 [2022-03-02 00:20:31,838 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482590182] [2022-03-02 00:20:31,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:20:31,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-03-02 00:20:31,839 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:20:31,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-03-02 00:20:31,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=567, Invalid=3593, Unknown=0, NotChecked=0, Total=4160 [2022-03-02 00:20:31,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:20:31,841 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:20:31,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 2.0153846153846153) internal successors, (131), 65 states have internal predecessors, (131), 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) [2022-03-02 00:20:31,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:20:31,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:20:31,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:31,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:20:31,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-02 00:20:31,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:21:04,563 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1959 transitions and produced 866 states. [2022-03-02 00:21:04,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:21:04,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:21:04,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:21:04,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:21:04,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-02 00:21:04,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-02 00:21:04,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-02 00:21:04,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:21:04,764 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:21:04,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:21:04,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1140115618, now seen corresponding path program 7 times [2022-03-02 00:21:04,765 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:21:04,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127416859] [2022-03-02 00:21:04,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:21:04,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:21:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:21:05,008 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 74 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:21:05,008 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:21:05,008 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127416859] [2022-03-02 00:21:05,008 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127416859] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:21:05,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503967686] [2022-03-02 00:21:05,009 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-02 00:21:05,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:21:05,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:21:05,010 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:21:05,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-02 00:21:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:21:05,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 22 conjunts are in the unsatisfiable core [2022-03-02 00:21:05,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:21:05,462 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 62 proven. 92 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-02 00:21:05,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:21:05,912 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 73 proven. 81 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-02 00:21:05,912 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503967686] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:21:05,912 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:21:05,912 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 23, 23] total 59 [2022-03-02 00:21:05,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787739688] [2022-03-02 00:21:05,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:21:05,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-03-02 00:21:05,913 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:21:05,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-03-02 00:21:05,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=2823, Unknown=0, NotChecked=0, Total=3422 [2022-03-02 00:21:05,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:21:05,915 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:21:05,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 2.288135593220339) internal successors, (135), 59 states have internal predecessors, (135), 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) [2022-03-02 00:21:05,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:21:05,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:21:05,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:21:05,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:21:05,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-02 00:21:05,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-03-02 00:21:05,916 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:21:06,618 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 411 transitions and produced 309 states. [2022-03-02 00:21:06,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:21:06,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:21:06,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:21:06,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:21:06,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-02 00:21:06,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-02 00:21:06,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-02 00:21:06,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-03-02 00:21:06,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-02 00:21:06,827 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:21:06,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:21:06,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1271732028, now seen corresponding path program 8 times [2022-03-02 00:21:06,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:21:06,828 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140681744] [2022-03-02 00:21:06,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:21:06,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:21:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:21:07,111 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 74 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:21:07,111 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:21:07,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140681744] [2022-03-02 00:21:07,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140681744] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:21:07,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156586775] [2022-03-02 00:21:07,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 00:21:07,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:21:07,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:21:07,116 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:21:07,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-02 00:21:07,166 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 00:21:07,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:21:07,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-02 00:21:07,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:21:07,636 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 111 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 00:21:07,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:21:08,139 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 79 proven. 100 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-02 00:21:08,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156586775] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:21:08,140 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:21:08,140 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 25, 25] total 62 [2022-03-02 00:21:08,140 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492757666] [2022-03-02 00:21:08,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:21:08,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-03-02 00:21:08,141 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:21:08,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-03-02 00:21:08,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=669, Invalid=3113, Unknown=0, NotChecked=0, Total=3782 [2022-03-02 00:21:08,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:21:08,142 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:21:08,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 2.274193548387097) internal successors, (141), 62 states have internal predecessors, (141), 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) [2022-03-02 00:21:08,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:21:08,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:21:08,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:21:08,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:21:08,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-02 00:21:08,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-03-02 00:21:08,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-02 00:21:08,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:21:08,841 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 422 transitions and produced 320 states. [2022-03-02 00:21:08,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:21:08,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:21:08,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:21:08,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:21:08,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-02 00:21:08,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-02 00:21:08,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-02 00:21:08,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-02 00:21:08,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-02 00:21:09,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:21:09,061 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:21:09,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:21:09,061 INFO L85 PathProgramCache]: Analyzing trace with hash -225020006, now seen corresponding path program 9 times [2022-03-02 00:21:09,061 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:21:09,061 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070235452] [2022-03-02 00:21:09,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:21:09,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:21:09,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:21:09,394 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 74 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:21:09,394 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:21:09,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070235452] [2022-03-02 00:21:09,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070235452] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:21:09,395 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856325972] [2022-03-02 00:21:09,395 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 00:21:09,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:21:09,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:21:09,396 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:21:09,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-02 00:21:09,442 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-03-02 00:21:09,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:21:09,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-02 00:21:09,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:21:09,900 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 74 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:21:09,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:21:10,515 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 85 proven. 121 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:21:10,515 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856325972] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 00:21:10,515 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 00:21:10,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 67 [2022-03-02 00:21:10,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880066944] [2022-03-02 00:21:10,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 00:21:10,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-03-02 00:21:10,516 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 00:21:10,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-03-02 00:21:10,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=799, Invalid=3623, Unknown=0, NotChecked=0, Total=4422 [2022-03-02 00:21:10,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:21:10,518 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 00:21:10,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.2686567164179103) internal successors, (152), 67 states have internal predecessors, (152), 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) [2022-03-02 00:21:10,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:21:10,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:21:10,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:21:10,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:21:10,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-02 00:21:10,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-03-02 00:21:10,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-02 00:21:10,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-03-02 00:21:10,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:21:11,378 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 444 transitions and produced 340 states. [2022-03-02 00:21:11,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-02 00:21:11,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-02 00:21:11,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:21:11,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-02 00:21:11,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-02 00:21:11,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-02 00:21:11,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-02 00:21:11,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-02 00:21:11,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-02 00:21:11,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-03-02 00:21:11,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-02 00:21:11,580 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 00:21:11,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:21:11,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1959737814, now seen corresponding path program 10 times [2022-03-02 00:21:11,580 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:21:11,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737044140] [2022-03-02 00:21:11,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:21:11,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:21:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 00:21:13,459 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 24 proven. 230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:21:13,459 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 00:21:13,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737044140] [2022-03-02 00:21:13,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737044140] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 00:21:13,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555369170] [2022-03-02 00:21:13,460 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 00:21:13,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:21:13,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 00:21:13,461 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 00:21:13,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-02 00:21:13,507 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 00:21:13,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 00:21:13,509 WARN L261 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 112 conjunts are in the unsatisfiable core [2022-03-02 00:21:13,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 00:21:15,689 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:15,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,705 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:15,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,712 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:15,713 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:15,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,720 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:15,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,732 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:15,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 00:21:15,734 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:15,737 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 78 disjoint index pairs (out of 190 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 38 [2022-03-02 00:21:15,780 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 0 proven. 254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 00:21:15,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 00:21:18,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:18,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:18,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:18,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:18,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:18,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:18,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:18,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:18,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:18,813 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:18,813 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:18,813 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:18,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:18,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:18,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 00:21:30,225 WARN L228 SmtUtils]: Spent 11.40s on a formula simplification. DAG size of input: 1305 DAG size of output: 909 (called from [L 350] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-03-02 00:21:30,227 INFO L353 Elim1Store]: treesize reduction 1508, result has 57.9 percent of original size [2022-03-02 00:21:30,228 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 26 select indices, 26 select index equivalence classes, 15 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 310 case distinctions, treesize of input 130 treesize of output 2105 Received shutdown request... [2022-03-02 00:34:12,255 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-02 00:34:12,257 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-02 00:34:12,262 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 00:34:12,262 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 00:34:12,262 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 00:34:12,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-02 00:34:12,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-02 00:34:12,458 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 71 with TraceHistMax 13,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 45ms.. [2022-03-02 00:34:12,460 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-02 00:34:12,460 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-02 00:34:12,460 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-02 00:34:12,464 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-03-02 00:34:12,466 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 00:34:12,466 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 00:34:12,467 INFO L202 PluginConnector]: Adding new model sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 12:34:12 BasicIcfg [2022-03-02 00:34:12,468 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 00:34:12,468 INFO L158 Benchmark]: Toolchain (without parser) took 839230.79ms. Allocated memory was 189.8MB in the beginning and 706.7MB in the end (delta: 516.9MB). Free memory was 149.6MB in the beginning and 378.4MB in the end (delta: -228.8MB). Peak memory consumption was 482.1MB. Max. memory is 8.0GB. [2022-03-02 00:34:12,468 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 189.8MB. Free memory is still 150.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 00:34:12,469 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.69ms. Allocated memory is still 189.8MB. Free memory was 149.5MB in the beginning and 147.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 00:34:12,469 INFO L158 Benchmark]: Boogie Preprocessor took 12.35ms. Allocated memory is still 189.8MB. Free memory was 147.9MB in the beginning and 147.0MB in the end (delta: 912.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 00:34:12,469 INFO L158 Benchmark]: RCFGBuilder took 209.81ms. Allocated memory is still 189.8MB. Free memory was 146.9MB in the beginning and 137.7MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-02 00:34:12,469 INFO L158 Benchmark]: TraceAbstraction took 838979.35ms. Allocated memory was 189.8MB in the beginning and 706.7MB in the end (delta: 516.9MB). Free memory was 137.1MB in the beginning and 378.4MB in the end (delta: -241.3MB). Peak memory consumption was 470.6MB. Max. memory is 8.0GB. [2022-03-02 00:34:12,470 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 0.14ms. Allocated memory is still 189.8MB. Free memory is still 150.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.69ms. Allocated memory is still 189.8MB. Free memory was 149.5MB in the beginning and 147.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.35ms. Allocated memory is still 189.8MB. Free memory was 147.9MB in the beginning and 147.0MB in the end (delta: 912.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 209.81ms. Allocated memory is still 189.8MB. Free memory was 146.9MB in the beginning and 137.7MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 838979.35ms. Allocated memory was 189.8MB in the beginning and 706.7MB in the end (delta: 516.9MB). Free memory was 137.1MB in the beginning and 378.4MB in the end (delta: -241.3MB). Peak memory consumption was 470.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 71 with TraceHistMax 13,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 45ms.. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 71 with TraceHistMax 13,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 45ms.. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 71 with TraceHistMax 13,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 45ms.. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 71 with TraceHistMax 13,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 45ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 838.9s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 38.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 498, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 16.7s InterpolantComputationTime, 904 NumberOfCodeBlocks, 904 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 1329 ConstructedInterpolants, 1 QuantifiedInterpolants, 15896 SizeOfPredicates, 66 NumberOfNonLiveVariables, 1139 ConjunctsInSsa, 209 ConjunctsInUnsatCore, 27 InterpolantComputations, 0 PerfectInterpolantSequences, 1135/2745 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown