/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-bad/three-array-sum-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 22:44:13,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 22:44:13,200 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 22:44:13,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 22:44:13,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 22:44:13,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 22:44:13,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 22:44:13,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 22:44:13,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 22:44:13,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 22:44:13,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 22:44:13,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 22:44:13,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 22:44:13,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 22:44:13,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 22:44:13,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 22:44:13,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 22:44:13,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 22:44:13,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 22:44:13,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 22:44:13,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 22:44:13,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 22:44:13,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 22:44:13,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 22:44:13,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 22:44:13,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 22:44:13,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 22:44:13,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 22:44:13,300 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 22:44:13,324 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 22:44:13,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 22:44:13,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 22:44:13,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 22:44:13,325 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 22:44:13,325 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 22:44:13,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 22:44:13,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 22:44:13,325 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 22:44:13,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 22:44:13,326 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 22:44:13,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 22:44:13,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 22:44:13,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 22:44:13,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 22:44:13,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 22:44:13,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 22:44:13,327 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 22:44:13,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 22:44:13,327 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 22:44:13,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 22:44:13,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 22:44:13,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 22:44:13,327 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 22:44:13,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 22:44:13,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 22:44:13,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 22:44:13,328 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 22:44:13,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 22:44:13,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 22:44:13,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 22:44:13,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 22:44:13,329 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 22:44:13,329 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 22:44:13,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 22:44:13,329 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-16 22:44:13,329 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 22:44:13,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 22:44:13,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 22:44:13,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 22:44:13,554 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 22:44:13,555 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 22:44:13,556 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/three-array-sum-alt.wvr.bpl [2022-03-16 22:44:13,556 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/three-array-sum-alt.wvr.bpl' [2022-03-16 22:44:13,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 22:44:13,579 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 22:44:13,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 22:44:13,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 22:44:13,580 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 22:44:13,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:13" (1/1) ... [2022-03-16 22:44:13,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:13" (1/1) ... [2022-03-16 22:44:13,600 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 22:44:13,601 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 22:44:13,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 22:44:13,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 22:44:13,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 22:44:13,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:13" (1/1) ... [2022-03-16 22:44:13,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:13" (1/1) ... [2022-03-16 22:44:13,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:13" (1/1) ... [2022-03-16 22:44:13,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:13" (1/1) ... [2022-03-16 22:44:13,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:13" (1/1) ... [2022-03-16 22:44:13,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:13" (1/1) ... [2022-03-16 22:44:13,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:13" (1/1) ... [2022-03-16 22:44:13,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 22:44:13,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 22:44:13,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 22:44:13,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 22:44:13,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:13" (1/1) ... [2022-03-16 22:44:13,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 22:44:13,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:44:13,648 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 22:44:13,667 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 22:44:13,687 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 22:44:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 22:44:13,687 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 22:44:13,687 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 22:44:13,687 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 22:44:13,688 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 22:44:13,688 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 22:44:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 22:44:13,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 22:44:13,688 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-16 22:44:13,688 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-16 22:44:13,688 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-16 22:44:13,688 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 22:44:13,722 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 22:44:13,723 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 22:44:13,790 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 22:44:13,801 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 22:44:13,801 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 22:44:13,803 INFO L202 PluginConnector]: Adding new model three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:44:13 BoogieIcfgContainer [2022-03-16 22:44:13,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 22:44:13,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 22:44:13,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 22:44:13,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 22:44:13,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:44:13" (1/2) ... [2022-03-16 22:44:13,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c43f33 and model type three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 10:44:13, skipping insertion in model container [2022-03-16 22:44:13,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:44:13" (2/2) ... [2022-03-16 22:44:13,823 INFO L111 eAbstractionObserver]: Analyzing ICFG three-array-sum-alt.wvr.bpl [2022-03-16 22:44:13,826 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 22:44:13,826 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 22:44:13,826 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 22:44:13,826 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 22:44:13,889 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-16 22:44:13,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 22:44:13,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:44:13,943 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 22:44:13,944 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 22:44:13,973 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 22:44:13,980 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 22:44:13,980 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-16 22:44:14,192 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 366 transitions and produced 333 states. [2022-03-16 22:44:14,194 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:44:14,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:44:14,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1822815910, now seen corresponding path program 1 times [2022-03-16 22:44:14,203 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:44:14,203 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943928703] [2022-03-16 22:44:14,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:44:14,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:44:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:44:15,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 500 proven. 588 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-16 22:44:15,241 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:44:15,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943928703] [2022-03-16 22:44:15,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943928703] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:44:15,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291651446] [2022-03-16 22:44:15,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:44:15,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:44:15,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:44:15,256 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 22:44:15,301 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 22:44:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:44:15,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-16 22:44:15,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:44:16,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 904 proven. 4 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-03-16 22:44:16,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:44:16,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 904 proven. 4 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-03-16 22:44:16,592 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291651446] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:44:16,592 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:44:16,593 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 19, 19] total 69 [2022-03-16 22:44:16,594 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651912684] [2022-03-16 22:44:16,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:44:16,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-03-16 22:44:16,599 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:44:16,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-03-16 22:44:16,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=855, Invalid=3975, Unknown=0, NotChecked=0, Total=4830 [2022-03-16 22:44:16,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:44:16,616 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:44:16,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 2.742857142857143) internal successors, (192), 69 states have internal predecessors, (192), 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 22:44:16,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:44:18,299 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 692 transitions and produced 641 states. [2022-03-16 22:44:18,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-03-16 22:44:18,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-16 22:44:18,519 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 22:44:18,519 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:44:18,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:44:18,520 INFO L85 PathProgramCache]: Analyzing trace with hash 660696740, now seen corresponding path program 2 times [2022-03-16 22:44:18,520 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:44:18,520 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95014042] [2022-03-16 22:44:18,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:44:18,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:44:18,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:44:19,874 INFO L134 CoverageAnalysis]: Checked inductivity of 3330 backedges. 2933 proven. 381 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-16 22:44:19,874 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:44:19,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95014042] [2022-03-16 22:44:19,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95014042] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:44:19,875 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393030614] [2022-03-16 22:44:19,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 22:44:19,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:44:19,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:44:19,877 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 22:44:19,904 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 22:44:20,017 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 22:44:20,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:44:20,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 37 conjunts are in the unsatisfiable core [2022-03-16 22:44:20,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:44:21,441 INFO L134 CoverageAnalysis]: Checked inductivity of 3330 backedges. 1619 proven. 289 refuted. 0 times theorem prover too weak. 1422 trivial. 0 not checked. [2022-03-16 22:44:21,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:44:21,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3330 backedges. 1619 proven. 289 refuted. 0 times theorem prover too weak. 1422 trivial. 0 not checked. [2022-03-16 22:44:21,715 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393030614] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:44:21,715 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:44:21,715 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 37, 37] total 102 [2022-03-16 22:44:21,715 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003302326] [2022-03-16 22:44:21,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:44:21,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2022-03-16 22:44:21,717 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:44:21,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2022-03-16 22:44:21,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1671, Invalid=8835, Unknown=0, NotChecked=0, Total=10506 [2022-03-16 22:44:21,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:44:21,723 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:44:21,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 2.2718446601941746) internal successors, (234), 102 states have internal predecessors, (234), 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 22:44:21,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-03-16 22:44:21,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:44:27,900 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3197 transitions and produced 2780 states. [2022-03-16 22:44:27,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-03-16 22:44:27,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2022-03-16 22:44:27,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-16 22:44:28,117 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 22:44:28,117 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:44:28,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:44:28,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1691997360, now seen corresponding path program 3 times [2022-03-16 22:44:28,118 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:44:28,118 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625234025] [2022-03-16 22:44:28,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:44:28,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:44:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:44:56,301 INFO L134 CoverageAnalysis]: Checked inductivity of 66265 backedges. 61087 proven. 5162 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-16 22:44:56,301 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:44:56,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625234025] [2022-03-16 22:44:56,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625234025] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:44:56,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778100481] [2022-03-16 22:44:56,302 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 22:44:56,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:44:56,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:44:56,303 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 22:44:56,304 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 22:44:56,609 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 52 check-sat command(s) [2022-03-16 22:44:56,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:44:56,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 11 conjunts are in the unsatisfiable core [2022-03-16 22:44:56,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:44:58,513 INFO L134 CoverageAnalysis]: Checked inductivity of 66265 backedges. 201 proven. 23709 refuted. 0 times theorem prover too weak. 42355 trivial. 0 not checked. [2022-03-16 22:44:58,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:44:59,300 INFO L134 CoverageAnalysis]: Checked inductivity of 66265 backedges. 201 proven. 23709 refuted. 0 times theorem prover too weak. 42355 trivial. 0 not checked. [2022-03-16 22:44:59,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778100481] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:44:59,301 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:44:59,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [327, 11, 11] total 337 [2022-03-16 22:44:59,302 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045389216] [2022-03-16 22:44:59,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:44:59,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 338 states [2022-03-16 22:44:59,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:44:59,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 338 interpolants. [2022-03-16 22:44:59,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42657, Invalid=71249, Unknown=0, NotChecked=0, Total=113906 [2022-03-16 22:44:59,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:44:59,330 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:44:59,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 338 states, 338 states have (on average 2.1183431952662723) internal successors, (716), 337 states have internal predecessors, (716), 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 22:44:59,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-03-16 22:44:59,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2022-03-16 22:44:59,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:46:27,004 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4393 transitions and produced 3272 states. [2022-03-16 22:46:27,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-03-16 22:46:27,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2022-03-16 22:46:27,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 626 states. [2022-03-16 22:46:27,022 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 22:46:27,219 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 22:46:27,220 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:46:27,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:46:27,220 INFO L85 PathProgramCache]: Analyzing trace with hash 464163442, now seen corresponding path program 4 times [2022-03-16 22:46:27,220 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:46:27,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331386371] [2022-03-16 22:46:27,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:46:27,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:46:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:47:09,549 INFO L134 CoverageAnalysis]: Checked inductivity of 108026 backedges. 104275 proven. 3751 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:47:09,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:47:09,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331386371] [2022-03-16 22:47:09,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331386371] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:47:09,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729358025] [2022-03-16 22:47:09,550 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 22:47:09,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:47:09,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:47:09,551 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 22:47:09,552 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 22:47:10,076 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 22:47:10,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:47:10,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 2924 conjuncts, 339 conjunts are in the unsatisfiable core [2022-03-16 22:47:10,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:48:09,760 INFO L134 CoverageAnalysis]: Checked inductivity of 108026 backedges. 83241 proven. 2881 refuted. 0 times theorem prover too weak. 21904 trivial. 0 not checked. [2022-03-16 22:48:09,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:49:01,928 INFO L134 CoverageAnalysis]: Checked inductivity of 108026 backedges. 83241 proven. 2881 refuted. 0 times theorem prover too weak. 21904 trivial. 0 not checked. [2022-03-16 22:49:01,928 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729358025] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:49:01,928 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:49:01,929 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [488, 339, 339] total 1115 [2022-03-16 22:49:01,929 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279261040] [2022-03-16 22:49:01,929 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:49:01,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 1116 states [2022-03-16 22:49:01,931 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:49:01,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 1116 interpolants. [2022-03-16 22:49:02,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200310, Invalid=1044030, Unknown=0, NotChecked=0, Total=1244340 [2022-03-16 22:49:02,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:49:02,005 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:49:02,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 1116 states, 1116 states have (on average 2.028673835125448) internal successors, (2264), 1115 states have internal predecessors, (2264), 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 22:49:02,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 108 states. [2022-03-16 22:49:02,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 174 states. [2022-03-16 22:49:02,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 626 states. [2022-03-16 22:49:02,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-03-16 22:58:26,194 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 22:58:26,212 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 22:58:26,212 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 22:58:26,212 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 22:58:26,394 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 22:58:26,394 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 2031 known predicates. [2022-03-16 22:58:26,396 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-16 22:58:26,397 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-16 22:58:26,397 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-16 22:58:26,397 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-16 22:58:26,401 INFO L732 BasicCegarLoop]: Path program histogram: [4] [2022-03-16 22:58:26,403 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 22:58:26,403 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 22:58:26,415 INFO L202 PluginConnector]: Adding new model three-array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 10:58:26 BasicIcfg [2022-03-16 22:58:26,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 22:58:26,416 INFO L158 Benchmark]: Toolchain (without parser) took 852836.87ms. Allocated memory was 195.0MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 155.6MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-03-16 22:58:26,418 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 195.0MB. Free memory is still 156.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 22:58:26,419 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.39ms. Allocated memory is still 195.0MB. Free memory was 155.6MB in the beginning and 154.0MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-16 22:58:26,419 INFO L158 Benchmark]: Boogie Preprocessor took 19.09ms. Allocated memory is still 195.0MB. Free memory was 154.0MB in the beginning and 153.1MB in the end (delta: 923.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 22:58:26,419 INFO L158 Benchmark]: RCFGBuilder took 180.89ms. Allocated memory is still 195.0MB. Free memory was 153.0MB in the beginning and 143.7MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-16 22:58:26,419 INFO L158 Benchmark]: TraceAbstraction took 852611.33ms. Allocated memory was 195.0MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 143.2MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2022-03-16 22:58:26,421 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 0.10ms. Allocated memory is still 195.0MB. Free memory is still 156.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.39ms. Allocated memory is still 195.0MB. Free memory was 155.6MB in the beginning and 154.0MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.09ms. Allocated memory is still 195.0MB. Free memory was 154.0MB in the beginning and 153.1MB in the end (delta: 923.7kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 180.89ms. Allocated memory is still 195.0MB. Free memory was 153.0MB in the beginning and 143.7MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 852611.33ms. Allocated memory was 195.0MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 143.2MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 1.4GB. 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: 66]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 2031 known predicates. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 2031 known predicates. - 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 PredicateComparison was comparing new predicate (quantifier-free) to 2031 known predicates. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 2031 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 40 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 852.5s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 659.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1826, 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, 1.3s SatisfiabilityAnalysisTime, 189.5s InterpolantComputationTime, 3900 NumberOfCodeBlocks, 3460 NumberOfCodeBlocksAsserted, 60 NumberOfCheckSat, 5838 ConstructedInterpolants, 0 QuantifiedInterpolants, 31880 SizeOfPredicates, 8 NumberOfNonLiveVariables, 4298 ConjunctsInSsa, 414 ConjunctsInUnsatCore, 12 InterpolantComputations, 0 PerfectInterpolantSequences, 472527/536175 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