/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/dot-product-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 01:32:56,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 01:32:56,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 01:32:56,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 01:32:56,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 01:32:56,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 01:32:56,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 01:32:56,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 01:32:56,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 01:32:56,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 01:32:56,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 01:32:56,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 01:32:56,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 01:32:56,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 01:32:56,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 01:32:56,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 01:32:56,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 01:32:56,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 01:32:56,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 01:32:56,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 01:32:56,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 01:32:56,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 01:32:56,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 01:32:56,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 01:32:56,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 01:32:56,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 01:32:56,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 01:32:56,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 01:32:56,272 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 [2022-03-04 01:32:56,296 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 01:32:56,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 01:32:56,297 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 01:32:56,297 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 01:32:56,298 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 01:32:56,298 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 01:32:56,299 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 01:32:56,299 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 01:32:56,299 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 01:32:56,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 01:32:56,300 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 01:32:56,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 01:32:56,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 01:32:56,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 01:32:56,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 01:32:56,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 01:32:56,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 01:32:56,300 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 01:32:56,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 01:32:56,300 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 01:32:56,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 01:32:56,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 01:32:56,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 01:32:56,301 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 01:32:56,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 01:32:56,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 01:32:56,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 01:32:56,302 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 01:32:56,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 01:32:56,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 01:32:56,302 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 01:32:56,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 01:32:56,303 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 01:32:56,303 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 01:32:56,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 01:32:56,303 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 01:32:56,303 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-04 01:32:56,303 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 01:32:56,303 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 01:32:56,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 01:32:56,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 01:32:56,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 01:32:56,483 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 01:32:56,483 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 01:32:56,484 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product-array.wvr.bpl [2022-03-04 01:32:56,484 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product-array.wvr.bpl' [2022-03-04 01:32:56,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 01:32:56,504 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 01:32:56,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 01:32:56,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 01:32:56,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 01:32:56,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:32:56" (1/1) ... [2022-03-04 01:32:56,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:32:56" (1/1) ... [2022-03-04 01:32:56,521 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 01:32:56,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 01:32:56,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 01:32:56,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 01:32:56,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 01:32:56,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:32:56" (1/1) ... [2022-03-04 01:32:56,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:32:56" (1/1) ... [2022-03-04 01:32:56,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:32:56" (1/1) ... [2022-03-04 01:32:56,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:32:56" (1/1) ... [2022-03-04 01:32:56,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:32:56" (1/1) ... [2022-03-04 01:32:56,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:32:56" (1/1) ... [2022-03-04 01:32:56,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:32:56" (1/1) ... [2022-03-04 01:32:56,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 01:32:56,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 01:32:56,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 01:32:56,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 01:32:56,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:32:56" (1/1) ... [2022-03-04 01:32:56,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 01:32:56,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:32:56,556 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) [2022-03-04 01:32:56,560 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 [2022-03-04 01:32:56,584 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 01:32:56,584 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 01:32:56,584 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 01:32:56,585 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 01:32:56,585 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 01:32:56,585 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 01:32:56,585 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 01:32:56,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 01:32:56,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 01:32:56,585 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 01:32:56,585 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 01:32:56,585 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 01:32:56,586 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 01:32:56,622 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 01:32:56,623 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 01:32:56,726 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 01:32:56,736 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 01:32:56,736 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 01:32:56,751 INFO L202 PluginConnector]: Adding new model dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 01:32:56 BoogieIcfgContainer [2022-03-04 01:32:56,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 01:32:56,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 01:32:56,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 01:32:56,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 01:32:56,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 01:32:56" (1/2) ... [2022-03-04 01:32:56,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@319a4786 and model type dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 01:32:56, skipping insertion in model container [2022-03-04 01:32:56,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 01:32:56" (2/2) ... [2022-03-04 01:32:56,763 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product-array.wvr.bpl [2022-03-04 01:32:56,767 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 01:32:56,767 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 01:32:56,767 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 01:32:56,767 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 01:32:56,789 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-04 01:32:56,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 01:32:56,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:32:56,818 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) [2022-03-04 01:32:56,840 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 [2022-03-04 01:32:56,857 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 01:32:56,861 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 [2022-03-04 01:32:56,862 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-04 01:32:57,295 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1682 transitions and produced 636 states. [2022-03-04 01:32:57,297 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:32:57,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:32:57,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1755737126, now seen corresponding path program 1 times [2022-03-04 01:32:57,309 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:32:57,310 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208041122] [2022-03-04 01:32:57,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:32:57,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:32:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:32:57,646 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:32:57,647 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:32:57,647 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208041122] [2022-03-04 01:32:57,648 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208041122] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:32:57,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286108188] [2022-03-04 01:32:57,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:32:57,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:32:57,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:32:57,650 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) [2022-03-04 01:32:57,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 01:32:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:32:57,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-04 01:32:57,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:32:57,908 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-04 01:32:57,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:32:58,096 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-03-04 01:32:58,096 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286108188] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:32:58,096 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:32:58,097 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 23 [2022-03-04 01:32:58,098 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050590905] [2022-03-04 01:32:58,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:32:58,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-04 01:32:58,104 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:32:58,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-04 01:32:58,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-03-04 01:32:58,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:32:58,132 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:32:58,136 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) [2022-03-04 01:32:58,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:32:58,626 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1693 transitions and produced 647 states. [2022-03-04 01:32:58,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:32:58,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-04 01:32:58,845 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 [2022-03-04 01:32:58,846 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:32:58,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:32:58,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1366218564, now seen corresponding path program 2 times [2022-03-04 01:32:58,850 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:32:58,850 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959847090] [2022-03-04 01:32:58,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:32:58,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:32:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:32:58,950 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 21 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 01:32:58,950 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:32:58,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959847090] [2022-03-04 01:32:58,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959847090] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:32:58,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995765658] [2022-03-04 01:32:58,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 01:32:58,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:32:58,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:32:58,952 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) [2022-03-04 01:32:58,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 01:32:58,983 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 01:32:58,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:32:58,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-04 01:32:58,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:32:59,156 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-04 01:32:59,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:32:59,312 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-04 01:32:59,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995765658] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:32:59,312 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:32:59,313 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 23 [2022-03-04 01:32:59,313 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866948685] [2022-03-04 01:32:59,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:32:59,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-04 01:32:59,314 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:32:59,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-04 01:32:59,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2022-03-04 01:32:59,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:32:59,314 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:32:59,315 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) [2022-03-04 01:32:59,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:32:59,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:32:59,807 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1704 transitions and produced 658 states. [2022-03-04 01:32:59,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:32:59,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:32:59,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 01:33:00,024 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 [2022-03-04 01:33:00,024 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:33:00,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:33:00,025 INFO L85 PathProgramCache]: Analyzing trace with hash 701035234, now seen corresponding path program 3 times [2022-03-04 01:33:00,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:33:00,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680576376] [2022-03-04 01:33:00,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:33:00,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:33:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:33:00,197 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 22 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:33:00,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:33:00,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680576376] [2022-03-04 01:33:00,197 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680576376] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:33:00,197 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462374727] [2022-03-04 01:33:00,197 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 01:33:00,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:33:00,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:33:00,199 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) [2022-03-04 01:33:00,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 01:33:00,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-03-04 01:33:00,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:33:00,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 12 conjunts are in the unsatisfiable core [2022-03-04 01:33:00,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:33:00,444 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 11 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 01:33:00,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:33:00,656 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 26 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 01:33:00,657 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462374727] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:33:00,657 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:33:00,657 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 13] total 35 [2022-03-04 01:33:00,657 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520775674] [2022-03-04 01:33:00,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:33:00,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-03-04 01:33:00,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:33:00,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-03-04 01:33:00,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=974, Unknown=0, NotChecked=0, Total=1190 [2022-03-04 01:33:00,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:33:00,659 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:33:00,659 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) [2022-03-04 01:33:00,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:33:00,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:33:00,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:33:01,066 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 237 transitions and produced 184 states. [2022-03-04 01:33:01,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:33:01,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:33:01,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:33:01,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-04 01:33:01,267 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 [2022-03-04 01:33:01,267 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:33:01,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:33:01,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1409982208, now seen corresponding path program 4 times [2022-03-04 01:33:01,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:33:01,268 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812017549] [2022-03-04 01:33:01,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:33:01,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:33:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:33:01,408 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 22 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:33:01,408 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:33:01,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812017549] [2022-03-04 01:33:01,408 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812017549] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:33:01,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834773840] [2022-03-04 01:33:01,408 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 01:33:01,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:33:01,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:33:01,410 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) [2022-03-04 01:33:01,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 01:33:01,457 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 01:33:01,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:33:01,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-04 01:33:01,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:33:01,702 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 30 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 01:33:01,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:33:01,883 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 30 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 01:33:01,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834773840] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:33:01,883 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:33:01,883 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14, 14] total 35 [2022-03-04 01:33:01,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795521609] [2022-03-04 01:33:01,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:33:01,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-03-04 01:33:01,885 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:33:01,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-03-04 01:33:01,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=994, Unknown=0, NotChecked=0, Total=1190 [2022-03-04 01:33:01,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:33:01,888 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:33:01,888 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) [2022-03-04 01:33:01,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:33:01,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:33:01,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:33:01,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:33:02,550 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1726 transitions and produced 680 states. [2022-03-04 01:33:02,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:33:02,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:33:02,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:33:02,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:33:02,569 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-04 01:33:02,751 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 [2022-03-04 01:33:02,752 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:33:02,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:33:02,752 INFO L85 PathProgramCache]: Analyzing trace with hash -191775842, now seen corresponding path program 5 times [2022-03-04 01:33:02,752 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:33:02,752 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537716588] [2022-03-04 01:33:02,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:33:02,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:33:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:33:02,949 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 22 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:33:02,949 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:33:02,949 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537716588] [2022-03-04 01:33:02,949 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537716588] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:33:02,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569772852] [2022-03-04 01:33:02,950 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 01:33:02,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:33:02,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:33:02,951 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) [2022-03-04 01:33:02,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-04 01:33:02,987 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-03-04 01:33:02,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:33:02,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 17 conjunts are in the unsatisfiable core [2022-03-04 01:33:02,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:33:03,291 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 22 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:33:03,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 01:33:03,629 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 34 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:33:03,630 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569772852] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 01:33:03,630 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 01:33:03,630 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 47 [2022-03-04 01:33:03,630 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423273755] [2022-03-04 01:33:03,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 01:33:03,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-03-04 01:33:03,631 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 01:33:03,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-03-04 01:33:03,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=404, Invalid=1758, Unknown=0, NotChecked=0, Total=2162 [2022-03-04 01:33:03,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:33:03,632 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 01:33:03,632 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) [2022-03-04 01:33:03,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:33:03,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:33:03,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:33:03,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:33:03,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 01:33:04,129 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 270 transitions and produced 215 states. [2022-03-04 01:33:04,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 01:33:04,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 01:33:04,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:33:04,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 01:33:04,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 01:33:04,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-04 01:33:04,330 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 [2022-03-04 01:33:04,331 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 01:33:04,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 01:33:04,331 INFO L85 PathProgramCache]: Analyzing trace with hash 672122458, now seen corresponding path program 6 times [2022-03-04 01:33:04,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 01:33:04,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947566936] [2022-03-04 01:33:04,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 01:33:04,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 01:33:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 01:33:05,573 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 6 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 01:33:05,573 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 01:33:05,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947566936] [2022-03-04 01:33:05,574 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947566936] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 01:33:05,574 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536598347] [2022-03-04 01:33:05,574 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 01:33:05,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:33:05,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 01:33:05,576 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) [2022-03-04 01:33:05,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-04 01:33:05,651 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-03-04 01:33:05,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 01:33:05,652 WARN L261 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 76 conjunts are in the unsatisfiable core [2022-03-04 01:33:05,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 01:33:53,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:53,768 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 01:33:53,769 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 58 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 33 case distinctions, treesize of input 172 treesize of output 436 [2022-03-04 01:33:55,107 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 01:33:55,108 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 132 treesize of output 1588 [2022-03-04 01:33:55,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 01:33:55,545 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 01:33:55,546 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 58 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 33 case distinctions, treesize of input 2172 treesize of output 2008 Received shutdown request... [2022-03-04 01:47:10,751 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-04 01:47:10,753 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-04 01:47:10,770 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-04 01:47:10,782 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 01:47:10,782 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 [2022-03-04 01:47:10,782 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 [2022-03-04 01:47:10,967 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 [2022-03-04 01:47:10,968 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 51 with TraceHistMax 8,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 16ms.. [2022-03-04 01:47:10,970 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-04 01:47:10,970 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-04 01:47:10,970 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-04 01:47:10,982 INFO L732 BasicCegarLoop]: Path program histogram: [6] [2022-03-04 01:47:10,985 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 01:47:10,985 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 01:47:10,987 INFO L202 PluginConnector]: Adding new model dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 01:47:10 BasicIcfg [2022-03-04 01:47:10,987 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 01:47:10,988 INFO L158 Benchmark]: Toolchain (without parser) took 854484.07ms. Allocated memory was 164.6MB in the beginning and 722.5MB in the end (delta: 557.8MB). Free memory was 128.8MB in the beginning and 420.6MB in the end (delta: -291.8MB). Peak memory consumption was 451.7MB. Max. memory is 8.0GB. [2022-03-04 01:47:10,988 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 164.6MB. Free memory was 130.1MB in the beginning and 130.0MB in the end (delta: 73.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 01:47:10,988 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.23ms. Allocated memory is still 164.6MB. Free memory was 128.8MB in the beginning and 127.3MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-04 01:47:10,988 INFO L158 Benchmark]: Boogie Preprocessor took 10.99ms. Allocated memory is still 164.6MB. Free memory was 127.3MB in the beginning and 126.3MB in the end (delta: 958.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 01:47:10,992 INFO L158 Benchmark]: RCFGBuilder took 216.83ms. Allocated memory is still 164.6MB. Free memory was 126.2MB in the beginning and 116.7MB in the end (delta: 9.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-04 01:47:10,992 INFO L158 Benchmark]: TraceAbstraction took 854234.60ms. Allocated memory was 164.6MB in the beginning and 722.5MB in the end (delta: 557.8MB). Free memory was 116.2MB in the beginning and 420.6MB in the end (delta: -304.4MB). Peak memory consumption was 438.1MB. Max. memory is 8.0GB. [2022-03-04 01:47:10,993 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 0.11ms. Allocated memory is still 164.6MB. Free memory was 130.1MB in the beginning and 130.0MB in the end (delta: 73.0kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.23ms. Allocated memory is still 164.6MB. Free memory was 128.8MB in the beginning and 127.3MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.99ms. Allocated memory is still 164.6MB. Free memory was 127.3MB in the beginning and 126.3MB in the end (delta: 958.2kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 216.83ms. Allocated memory is still 164.6MB. Free memory was 126.2MB in the beginning and 116.7MB in the end (delta: 9.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 854234.60ms. Allocated memory was 164.6MB in the beginning and 722.5MB in the end (delta: 557.8MB). Free memory was 116.2MB in the beginning and 420.6MB in the end (delta: -304.4MB). Peak memory consumption was 438.1MB. 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: 67]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 51 with TraceHistMax 8,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 16ms.. - TimeoutResultAtElement [Line: 60]: 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 51 with TraceHistMax 8,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 16ms.. - TimeoutResultAtElement [Line: 60]: 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 51 with TraceHistMax 8,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 16ms.. - TimeoutResultAtElement [Line: 61]: 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 51 with TraceHistMax 8,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 16ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 854.2s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 3.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 140, 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 420 NumberOfCodeBlocks, 420 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 615 ConstructedInterpolants, 0 QuantifiedInterpolants, 3340 SizeOfPredicates, 32 NumberOfNonLiveVariables, 530 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 15 InterpolantComputations, 0 PerfectInterpolantSequences, 430/780 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