/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 22:44:27,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 22:44:27,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 22:44:27,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 22:44:27,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 22:44:27,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 22:44:27,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 22:44:27,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 22:44:27,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 22:44:27,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 22:44:27,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 22:44:27,262 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 22:44:27,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 22:44:27,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 22:44:27,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 22:44:27,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 22:44:27,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 22:44:27,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 22:44:27,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 22:44:27,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 22:44:27,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 22:44:27,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 22:44:27,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 22:44:27,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 22:44:27,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 22:44:27,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 22:44:27,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 22:44:27,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 22:44:27,300 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-MCRwithoutDepranks-Lazy.epf [2022-03-16 22:44:27,319 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 22:44:27,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 22:44:27,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 22:44:27,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 22:44:27,320 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 22:44:27,321 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 22:44:27,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 22:44:27,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 22:44:27,321 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 22:44:27,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 22:44:27,322 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 22:44:27,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 22:44:27,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 22:44:27,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 22:44:27,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 22:44:27,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 22:44:27,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 22:44:27,323 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 22:44:27,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 22:44:27,323 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 22:44:27,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 22:44:27,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 22:44:27,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 22:44:27,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 22:44:27,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 22:44:27,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 22:44:27,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 22:44:27,325 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 22:44:27,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 22:44:27,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 22:44:27,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 22:44:27,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 22:44:27,325 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 22:44:27,326 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 22:44:27,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 22:44:27,326 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-16 22:44:27,326 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 22:44:27,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 22:44:27,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 22:44:27,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 22:44:27,538 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 22:44:27,539 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 22:44:27,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum-alt.wvr.bpl [2022-03-16 22:44:27,540 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum-alt.wvr.bpl' [2022-03-16 22:44:27,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 22:44:27,565 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 22:44:27,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 22:44:27,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 22:44:27,567 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 22:44:27,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:27" (1/1) ... [2022-03-16 22:44:27,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:27" (1/1) ... [2022-03-16 22:44:27,597 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 22:44:27,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 22:44:27,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 22:44:27,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 22:44:27,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 22:44:27,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:27" (1/1) ... [2022-03-16 22:44:27,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:27" (1/1) ... [2022-03-16 22:44:27,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:27" (1/1) ... [2022-03-16 22:44:27,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:27" (1/1) ... [2022-03-16 22:44:27,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:27" (1/1) ... [2022-03-16 22:44:27,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:27" (1/1) ... [2022-03-16 22:44:27,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:27" (1/1) ... [2022-03-16 22:44:27,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 22:44:27,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 22:44:27,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 22:44:27,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 22:44:27,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:27" (1/1) ... [2022-03-16 22:44:27,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 22:44:27,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:44:27,652 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) [2022-03-16 22:44:27,674 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 [2022-03-16 22:44:27,686 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 22:44:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 22:44:27,687 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 22:44:27,687 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 22:44:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 22:44:27,687 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 22:44:27,687 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 22:44:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 22:44:27,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 22:44:27,687 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-16 22:44:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-16 22:44:27,688 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-16 22:44:27,688 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 22:44:27,730 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 22:44:27,731 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 22:44:27,801 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 22:44:27,807 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 22:44:27,807 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 22:44:27,809 INFO L202 PluginConnector]: Adding new model array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:44:27 BoogieIcfgContainer [2022-03-16 22:44:27,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 22:44:27,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 22:44:27,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 22:44:27,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 22:44:27,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:27" (1/2) ... [2022-03-16 22:44:27,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30bef324 and model type array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 10:44:27, skipping insertion in model container [2022-03-16 22:44:27,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:44:27" (2/2) ... [2022-03-16 22:44:27,816 INFO L111 eAbstractionObserver]: Analyzing ICFG array-sum-alt.wvr.bpl [2022-03-16 22:44:27,820 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 22:44:27,820 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 22:44:27,821 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 22:44:27,821 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 22:44:27,851 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-16 22:44:27,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 22:44:27,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:44:27,911 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) [2022-03-16 22:44:27,931 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 [2022-03-16 22:44:27,948 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 22:44:27,962 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=true, mMcrOverapproximateWrwc=true [2022-03-16 22:44:27,962 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-16 22:44:28,602 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1134 transitions and produced 1048 states. [2022-03-16 22:44:28,604 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:44:28,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:44:28,610 INFO L85 PathProgramCache]: Analyzing trace with hash 2027575879, now seen corresponding path program 1 times [2022-03-16 22:44:28,618 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:44:28,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384446706] [2022-03-16 22:44:28,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:44:28,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:44:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:44:31,804 INFO L134 CoverageAnalysis]: Checked inductivity of 10069 backedges. 5445 proven. 4585 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-16 22:44:31,804 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:44:31,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384446706] [2022-03-16 22:44:31,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384446706] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:44:31,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885647123] [2022-03-16 22:44:31,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:44:31,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:44:31,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:44:31,812 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) [2022-03-16 22:44:31,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 22:44:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:44:31,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 104 conjunts are in the unsatisfiable core [2022-03-16 22:44:31,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:44:36,819 INFO L134 CoverageAnalysis]: Checked inductivity of 10069 backedges. 3969 proven. 6064 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-16 22:44:36,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:44:42,022 INFO L134 CoverageAnalysis]: Checked inductivity of 10069 backedges. 5340 proven. 4714 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-16 22:44:42,022 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885647123] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:44:42,022 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:44:42,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 81, 95] total 223 [2022-03-16 22:44:42,024 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812473460] [2022-03-16 22:44:42,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:44:42,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 223 states [2022-03-16 22:44:42,031 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:44:42,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 223 interpolants. [2022-03-16 22:44:42,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13759, Invalid=35747, Unknown=0, NotChecked=0, Total=49506 [2022-03-16 22:44:42,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:44:42,075 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:44:42,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 223 states, 223 states have (on average 3.3856502242152464) internal successors, (755), 223 states have internal predecessors, (755), 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) [2022-03-16 22:44:42,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:44:56,066 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2277 transitions and produced 2152 states. [2022-03-16 22:44:56,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 288 states. [2022-03-16 22:44:56,093 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-16 22:44:56,287 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 [2022-03-16 22:44:56,288 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:44:56,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:44:56,289 INFO L85 PathProgramCache]: Analyzing trace with hash 763926685, now seen corresponding path program 2 times [2022-03-16 22:44:56,289 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:44:56,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591459466] [2022-03-16 22:44:56,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:44:56,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:44:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:45:04,728 INFO L134 CoverageAnalysis]: Checked inductivity of 28275 backedges. 15968 proven. 12280 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-16 22:45:04,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:45:04,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591459466] [2022-03-16 22:45:04,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591459466] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:45:04,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642275027] [2022-03-16 22:45:04,730 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 22:45:04,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:45:04,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:45:04,731 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) [2022-03-16 22:45:04,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-16 22:45:04,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 22:45:04,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:45:04,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 196 conjunts are in the unsatisfiable core [2022-03-16 22:45:04,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:45:17,592 INFO L134 CoverageAnalysis]: Checked inductivity of 28275 backedges. 12974 proven. 15277 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-16 22:45:17,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:45:36,367 INFO L134 CoverageAnalysis]: Checked inductivity of 28275 backedges. 11122 proven. 17150 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-16 22:45:36,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642275027] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:45:36,368 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:45:36,368 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [179, 181, 195] total 461 [2022-03-16 22:45:36,369 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707297840] [2022-03-16 22:45:36,369 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:45:36,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 461 states [2022-03-16 22:45:36,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:45:36,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 461 interpolants. [2022-03-16 22:45:36,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45709, Invalid=166351, Unknown=0, NotChecked=0, Total=212060 [2022-03-16 22:45:36,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:45:36,403 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:45:36,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 461 states, 461 states have (on average 3.140997830802603) internal successors, (1448), 461 states have internal predecessors, (1448), 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) [2022-03-16 22:45:36,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 288 states. [2022-03-16 22:45:36,405 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:46:28,606 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3643 transitions and produced 3461 states. [2022-03-16 22:46:28,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 288 states. [2022-03-16 22:46:28,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 556 states. [2022-03-16 22:46:28,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-16 22:46:28,823 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 [2022-03-16 22:46:28,824 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:46:28,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:46:28,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1577543203, now seen corresponding path program 3 times [2022-03-16 22:46:28,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:46:28,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101946545] [2022-03-16 22:46:28,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:46:28,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:46:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:46:53,886 INFO L134 CoverageAnalysis]: Checked inductivity of 76975 backedges. 33103 proven. 43845 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-16 22:46:53,887 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:46:53,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101946545] [2022-03-16 22:46:53,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101946545] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:46:53,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927640540] [2022-03-16 22:46:53,888 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 22:46:53,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:46:53,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:46:53,893 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) [2022-03-16 22:46:53,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-16 22:46:58,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 170 check-sat command(s) [2022-03-16 22:46:58,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:46:58,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 1686 conjuncts, 332 conjunts are in the unsatisfiable core [2022-03-16 22:46:58,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:47:26,933 INFO L134 CoverageAnalysis]: Checked inductivity of 76975 backedges. 28591 proven. 48360 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-16 22:47:26,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:47:56,632 INFO L134 CoverageAnalysis]: Checked inductivity of 76975 backedges. 24209 proven. 52763 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-16 22:47:56,633 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927640540] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:47:56,633 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:47:56,633 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [315, 317, 331] total 633 [2022-03-16 22:47:56,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207688712] [2022-03-16 22:47:56,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:47:56,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 633 states [2022-03-16 22:47:56,636 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:47:56,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 633 interpolants. [2022-03-16 22:47:56,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76067, Invalid=323989, Unknown=0, NotChecked=0, Total=400056 [2022-03-16 22:47:56,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:47:56,675 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:47:56,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 633 states, 633 states have (on average 3.1105845181674567) internal successors, (1969), 633 states have internal predecessors, (1969), 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) [2022-03-16 22:47:56,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 288 states. [2022-03-16 22:47:56,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 556 states. [2022-03-16 22:47:56,677 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:49:49,375 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4451 transitions and produced 4258 states. [2022-03-16 22:49:49,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 288 states. [2022-03-16 22:49:49,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 556 states. [2022-03-16 22:49:49,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 765 states. [2022-03-16 22:49:49,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-16 22:49:49,576 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 [2022-03-16 22:49:49,576 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:49:49,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:49:49,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1512201501, now seen corresponding path program 4 times [2022-03-16 22:49:49,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:49:49,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32720263] [2022-03-16 22:49:49,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:49:49,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:49:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:50:24,227 INFO L134 CoverageAnalysis]: Checked inductivity of 108123 backedges. 56586 proven. 51510 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-16 22:50:24,227 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:50:24,227 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32720263] [2022-03-16 22:50:24,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32720263] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:50:24,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606006567] [2022-03-16 22:50:24,228 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 22:50:24,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:50:24,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:50:24,229 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) [2022-03-16 22:50:24,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-16 22:50:24,553 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 22:50:24,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:50:24,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 1966 conjuncts, 388 conjunts are in the unsatisfiable core [2022-03-16 22:50:24,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:51:11,037 INFO L134 CoverageAnalysis]: Checked inductivity of 108123 backedges. 50556 proven. 57543 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-03-16 22:51:11,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:52:05,575 INFO L134 CoverageAnalysis]: Checked inductivity of 108123 backedges. 43644 proven. 64476 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-16 22:52:05,575 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606006567] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:52:05,575 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:52:05,576 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [371, 373, 387] total 829 [2022-03-16 22:52:05,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663706514] [2022-03-16 22:52:05,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:52:05,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 829 states [2022-03-16 22:52:05,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:52:05,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 829 interpolants. [2022-03-16 22:52:05,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145349, Invalid=541063, Unknown=0, NotChecked=0, Total=686412 [2022-03-16 22:52:05,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:52:05,634 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:52:05,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 829 states, 829 states have (on average 3.0759951749095293) internal successors, (2550), 829 states have internal predecessors, (2550), 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) [2022-03-16 22:52:05,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 288 states. [2022-03-16 22:52:05,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 556 states. [2022-03-16 22:52:05,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 765 states. [2022-03-16 22:52:05,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:56:07,301 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5710 transitions and produced 5470 states. [2022-03-16 22:56:07,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 288 states. [2022-03-16 22:56:07,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 556 states. [2022-03-16 22:56:07,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 765 states. [2022-03-16 22:56:07,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1010 states. [2022-03-16 22:56:07,320 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-16 22:56:07,502 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 [2022-03-16 22:56:07,503 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:56:07,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:56:07,503 INFO L85 PathProgramCache]: Analyzing trace with hash -628668940, now seen corresponding path program 5 times [2022-03-16 22:56:07,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:56:07,504 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345502417] [2022-03-16 22:56:07,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:56:07,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:56:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-03-16 22:56:10,843 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-16 22:56:10,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-16 22:56:10,843 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 1534 with TraceHistMax 261,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 1532 interpolants. [2022-03-16 22:56:10,845 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-16 22:56:10,845 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-16 22:56:10,845 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-16 22:56:10,851 INFO L732 BasicCegarLoop]: Path program histogram: [5] [2022-03-16 22:56:10,853 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 22:56:10,854 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 22:56:10,856 INFO L202 PluginConnector]: Adding new model array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 10:56:10 BasicIcfg [2022-03-16 22:56:10,856 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 22:56:10,857 INFO L158 Benchmark]: Toolchain (without parser) took 703292.05ms. Allocated memory was 191.9MB in the beginning and 4.2GB in the end (delta: 4.0GB). Free memory was 150.7MB in the beginning and 3.0GB in the end (delta: -2.8GB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2022-03-16 22:56:10,860 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 191.9MB. Free memory was 151.9MB in the beginning and 151.8MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 22:56:10,862 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.73ms. Allocated memory is still 191.9MB. Free memory was 150.7MB in the beginning and 149.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 22:56:10,862 INFO L158 Benchmark]: Boogie Preprocessor took 18.53ms. Allocated memory is still 191.9MB. Free memory was 149.2MB in the beginning and 148.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 22:56:10,863 INFO L158 Benchmark]: RCFGBuilder took 189.94ms. Allocated memory is still 191.9MB. Free memory was 148.2MB in the beginning and 139.2MB in the end (delta: 9.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-16 22:56:10,863 INFO L158 Benchmark]: TraceAbstraction took 703045.04ms. Allocated memory was 191.9MB in the beginning and 4.2GB in the end (delta: 4.0GB). Free memory was 138.6MB in the beginning and 3.0GB in the end (delta: -2.9GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-03-16 22:56:10,865 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 [2022-03-16 22:56:10,865 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 [2022-03-16 22:56:10,870 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 0.12ms. Allocated memory is still 191.9MB. Free memory was 151.9MB in the beginning and 151.8MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.73ms. Allocated memory is still 191.9MB. Free memory was 150.7MB in the beginning and 149.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.53ms. Allocated memory is still 191.9MB. Free memory was 149.2MB in the beginning and 148.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 189.94ms. Allocated memory is still 191.9MB. Free memory was 148.2MB in the beginning and 139.2MB in the end (delta: 9.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 703045.04ms. Allocated memory was 191.9MB in the beginning and 4.2GB in the end (delta: 4.0GB). Free memory was 138.6MB in the beginning and 3.0GB in the end (delta: -2.9GB). Peak memory consumption was 1.1GB. 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: 59]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 1534 with TraceHistMax 261,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 1532 interpolants. - TimeoutResultAtElement [Line: 53]: 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 1534 with TraceHistMax 261,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 1532 interpolants. - TimeoutResultAtElement [Line: 52]: 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 1534 with TraceHistMax 261,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 1532 interpolants. - TimeoutResultAtElement [Line: 52]: 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 1534 with TraceHistMax 261,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 1532 interpolants. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 48 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 703.0s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 421.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2619, 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: 0.2s SsaConstructionTime, 6.6s SatisfiabilityAnalysisTime, 270.0s InterpolantComputationTime, 6168 NumberOfCodeBlocks, 6168 NumberOfCodeBlocksAsserted, 178 NumberOfCheckSat, 9240 ConstructedInterpolants, 0 QuantifiedInterpolants, 67374 SizeOfPredicates, 24 NumberOfNonLiveVariables, 5204 ConjunctsInSsa, 1020 ConjunctsInUnsatCore, 12 InterpolantComputations, 0 PerfectInterpolantSequences, 291759/670326 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