/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/horseshoe.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 19:03:41,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 19:03:41,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 19:03:41,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 19:03:41,487 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks.epf [2022-02-09 19:03:41,528 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 19:03:41,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 19:03:41,529 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 19:03:41,529 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 19:03:41,530 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 19:03:41,530 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 19:03:41,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 19:03:41,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 19:03:41,531 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 19:03:41,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 19:03:41,532 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 19:03:41,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 19:03:41,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 19:03:41,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 19:03:41,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 19:03:41,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 19:03:41,532 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 19:03:41,533 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 19:03:41,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 19:03:41,533 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 19:03:41,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 19:03:41,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 19:03:41,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 19:03:41,534 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 19:03:41,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 19:03:41,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 19:03:41,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 19:03:41,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 19:03:41,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 19:03:41,534 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 19:03:41,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 19:03:41,535 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 19:03:41,535 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 19:03:41,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 19:03:41,535 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-09 19:03:41,535 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 19:03:41,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 19:03:41,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 19:03:41,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 19:03:41,738 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-09 19:03:41,742 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-09 19:03:41,743 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/horseshoe.wvr.bpl [2022-02-09 19:03:41,744 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/horseshoe.wvr.bpl' [2022-02-09 19:03:41,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 19:03:41,769 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-09 19:03:41,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 19:03:41,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 19:03:41,775 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 19:03:41,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:03:41" (1/1) ... [2022-02-09 19:03:41,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:03:41" (1/1) ... [2022-02-09 19:03:41,797 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-09 19:03:41,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 19:03:41,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 19:03:41,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 19:03:41,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 19:03:41,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:03:41" (1/1) ... [2022-02-09 19:03:41,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:03:41" (1/1) ... [2022-02-09 19:03:41,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:03:41" (1/1) ... [2022-02-09 19:03:41,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:03:41" (1/1) ... [2022-02-09 19:03:41,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:03:41" (1/1) ... [2022-02-09 19:03:41,812 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:03:41" (1/1) ... [2022-02-09 19:03:41,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:03:41" (1/1) ... [2022-02-09 19:03:41,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 19:03:41,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 19:03:41,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 19:03:41,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 19:03:41,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:03:41" (1/1) ... [2022-02-09 19:03:41,823 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 19:03:41,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 19:03:41,839 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) [2022-02-09 19:03:41,858 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 [2022-02-09 19:03:41,876 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-09 19:03:41,876 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-09 19:03:41,876 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-09 19:03:41,876 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-09 19:03:41,876 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-09 19:03:41,876 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-09 19:03:41,877 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-09 19:03:41,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 19:03:41,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 19:03:41,877 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-09 19:03:41,877 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-09 19:03:41,877 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-09 19:03:41,878 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 19:03:41,916 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 19:03:41,917 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 19:03:41,993 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 19:03:42,010 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 19:03:42,010 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-09 19:03:42,012 INFO L202 PluginConnector]: Adding new model horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 07:03:42 BoogieIcfgContainer [2022-02-09 19:03:42,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 19:03:42,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 19:03:42,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 19:03:42,025 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 19:03:42,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 07:03:41" (1/2) ... [2022-02-09 19:03:42,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d314d77 and model type horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 07:03:42, skipping insertion in model container [2022-02-09 19:03:42,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 07:03:42" (2/2) ... [2022-02-09 19:03:42,027 INFO L111 eAbstractionObserver]: Analyzing ICFG horseshoe.wvr.bpl [2022-02-09 19:03:42,031 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 19:03:42,031 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 19:03:42,032 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 19:03:42,032 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 19:03:42,084 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-09 19:03:42,153 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 19:03:42,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 19:03:42,187 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) [2022-02-09 19:03:42,207 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 [2022-02-09 19:03:42,229 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 19:03:42,250 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=false, 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 [2022-02-09 19:03:42,250 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-09 19:03:42,265 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 33 transitions, 90 flow [2022-02-09 19:03:42,375 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 353 states, 352 states have (on average 2.946022727272727) internal successors, (1037), 352 states have internal predecessors, (1037), 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) [2022-02-09 19:03:42,529 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3219 transitions and produced 1823 states. [2022-02-09 19:03:42,531 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 19:03:42,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 19:03:42,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1891996230, now seen corresponding path program 1 times [2022-02-09 19:03:42,546 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 19:03:42,546 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288778966] [2022-02-09 19:03:42,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 19:03:42,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 19:03:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 19:03:45,008 INFO L134 CoverageAnalysis]: Checked inductivity of 9724 backedges. 31 proven. 9538 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-02-09 19:03:45,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 19:03:45,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288778966] [2022-02-09 19:03:45,010 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288778966] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 19:03:45,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105102843] [2022-02-09 19:03:45,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 19:03:45,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 19:03:45,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 19:03:45,018 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) [2022-02-09 19:03:45,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-09 19:03:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 19:03:45,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 114 conjunts are in the unsatisfiable core [2022-02-09 19:03:45,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 19:03:49,568 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 19:03:49,573 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-09 19:03:49,655 INFO L134 CoverageAnalysis]: Checked inductivity of 9724 backedges. 31 proven. 9538 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-02-09 19:03:49,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 19:03:51,376 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-02-09 19:03:51,376 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2022-02-09 19:03:51,952 INFO L134 CoverageAnalysis]: Checked inductivity of 9724 backedges. 31 proven. 9538 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-02-09 19:03:51,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105102843] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 19:03:51,953 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 19:03:51,953 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41, 41] total 81 [2022-02-09 19:03:51,955 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082697196] [2022-02-09 19:03:51,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 19:03:51,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2022-02-09 19:03:51,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 19:03:51,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2022-02-09 19:03:51,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=6421, Unknown=0, NotChecked=0, Total=6642 [2022-02-09 19:03:51,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:03:51,993 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 19:03:51,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 7.682926829268292) internal successors, (630), 81 states have internal predecessors, (630), 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) [2022-02-09 19:03:51,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:03:56,357 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3087 transitions and produced 2145 states. [2022-02-09 19:03:56,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 19:03:56,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-09 19:03:56,583 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 [2022-02-09 19:03:56,583 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 19:03:56,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 19:03:56,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1707702616, now seen corresponding path program 2 times [2022-02-09 19:03:56,584 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 19:03:56,584 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781054162] [2022-02-09 19:03:56,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 19:03:56,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 19:03:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 19:03:59,216 INFO L134 CoverageAnalysis]: Checked inductivity of 19968 backedges. 31 proven. 19543 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2022-02-09 19:03:59,216 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 19:03:59,217 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781054162] [2022-02-09 19:03:59,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781054162] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 19:03:59,217 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931145410] [2022-02-09 19:03:59,217 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 19:03:59,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 19:03:59,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 19:03:59,219 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) [2022-02-09 19:03:59,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-09 19:03:59,439 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 19:03:59,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 19:03:59,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 1365 conjuncts, 172 conjunts are in the unsatisfiable core [2022-02-09 19:03:59,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 19:04:05,965 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 19:04:05,966 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-02-09 19:04:06,075 INFO L134 CoverageAnalysis]: Checked inductivity of 19968 backedges. 31 proven. 19543 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2022-02-09 19:04:06,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 19:04:09,156 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-02-09 19:04:09,156 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2022-02-09 19:04:10,114 INFO L134 CoverageAnalysis]: Checked inductivity of 19968 backedges. 31 proven. 19543 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2022-02-09 19:04:10,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931145410] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 19:04:10,114 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 19:04:10,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62, 62] total 122 [2022-02-09 19:04:10,115 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523728296] [2022-02-09 19:04:10,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 19:04:10,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 123 states [2022-02-09 19:04:10,117 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 19:04:10,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2022-02-09 19:04:10,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=333, Invalid=14673, Unknown=0, NotChecked=0, Total=15006 [2022-02-09 19:04:10,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:04:10,121 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 19:04:10,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 123 states, 123 states have (on average 7.2926829268292686) internal successors, (897), 122 states have internal predecessors, (897), 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) [2022-02-09 19:04:10,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-02-09 19:04:10,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:04:21,674 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3603 transitions and produced 2571 states. [2022-02-09 19:04:21,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 19:04:21,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-09 19:04:21,702 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-09 19:04:21,885 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 [2022-02-09 19:04:21,886 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 19:04:21,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 19:04:21,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1055110967, now seen corresponding path program 3 times [2022-02-09 19:04:21,887 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 19:04:21,887 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034591391] [2022-02-09 19:04:21,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 19:04:21,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 19:04:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 19:04:26,032 INFO L134 CoverageAnalysis]: Checked inductivity of 29380 backedges. 31 proven. 29012 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2022-02-09 19:04:26,033 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 19:04:26,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034591391] [2022-02-09 19:04:26,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034591391] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 19:04:26,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624130006] [2022-02-09 19:04:26,033 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 19:04:26,034 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 19:04:26,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 19:04:26,040 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) [2022-02-09 19:04:26,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-09 19:04:26,580 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 119 check-sat command(s) [2022-02-09 19:04:26,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 19:04:26,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 1621 conjuncts, 142 conjunts are in the unsatisfiable core [2022-02-09 19:04:26,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 19:04:28,601 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-02-09 19:04:30,237 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-09 19:04:30,441 INFO L134 CoverageAnalysis]: Checked inductivity of 29380 backedges. 0 proven. 25125 refuted. 0 times theorem prover too weak. 4255 trivial. 0 not checked. [2022-02-09 19:04:30,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 19:04:31,837 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 19:04:31,837 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-02-09 19:04:33,154 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 19:04:33,155 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 22 [2022-02-09 19:04:33,598 INFO L134 CoverageAnalysis]: Checked inductivity of 29380 backedges. 0 proven. 25125 refuted. 0 times theorem prover too weak. 4255 trivial. 0 not checked. [2022-02-09 19:04:33,598 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624130006] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 19:04:33,598 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 19:04:33,599 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 27, 27] total 110 [2022-02-09 19:04:33,599 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053788195] [2022-02-09 19:04:33,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 19:04:33,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 111 states [2022-02-09 19:04:33,601 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 19:04:33,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2022-02-09 19:04:33,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=11985, Unknown=0, NotChecked=0, Total=12210 [2022-02-09 19:04:33,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:04:33,605 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 19:04:33,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 111 states, 111 states have (on average 5.900900900900901) internal successors, (655), 110 states have internal predecessors, (655), 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) [2022-02-09 19:04:33,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-02-09 19:04:33,605 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-02-09 19:04:33,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:04:56,365 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5710 transitions and produced 3493 states. [2022-02-09 19:04:56,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 19:04:56,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-09 19:04:56,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-02-09 19:04:56,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-09 19:04:56,567 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 [2022-02-09 19:04:56,568 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 19:04:56,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 19:04:56,569 INFO L85 PathProgramCache]: Analyzing trace with hash 2112632747, now seen corresponding path program 4 times [2022-02-09 19:04:56,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 19:04:56,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121520351] [2022-02-09 19:04:56,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 19:04:56,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 19:04:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 19:05:04,000 INFO L134 CoverageAnalysis]: Checked inductivity of 42925 backedges. 45 proven. 42421 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2022-02-09 19:05:04,000 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 19:05:04,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121520351] [2022-02-09 19:05:04,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121520351] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 19:05:04,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960969349] [2022-02-09 19:05:04,001 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 19:05:04,001 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 19:05:04,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 19:05:04,003 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) [2022-02-09 19:05:04,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-09 19:05:04,371 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 19:05:04,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 19:05:04,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 1997 conjuncts, 262 conjunts are in the unsatisfiable core [2022-02-09 19:05:04,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 19:05:17,968 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 19:05:17,969 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-09 19:05:18,101 INFO L134 CoverageAnalysis]: Checked inductivity of 42925 backedges. 45 proven. 42421 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2022-02-09 19:05:18,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 19:05:26,321 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-02-09 19:05:26,322 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2022-02-09 19:05:27,401 INFO L134 CoverageAnalysis]: Checked inductivity of 42925 backedges. 45 proven. 42421 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2022-02-09 19:05:27,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960969349] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 19:05:27,402 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 19:05:27,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [106, 106, 106] total 210 [2022-02-09 19:05:27,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23222389] [2022-02-09 19:05:27,402 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 19:05:27,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 211 states [2022-02-09 19:05:27,404 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 19:05:27,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 211 interpolants. [2022-02-09 19:05:27,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=575, Invalid=43735, Unknown=0, NotChecked=0, Total=44310 [2022-02-09 19:05:27,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:05:27,413 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 19:05:27,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 211 states, 211 states have (on average 7.180094786729858) internal successors, (1515), 210 states have internal predecessors, (1515), 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) [2022-02-09 19:05:27,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-02-09 19:05:27,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-02-09 19:05:27,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-02-09 19:05:27,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:06:14,014 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5126 transitions and produced 3422 states. [2022-02-09 19:06:14,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 19:06:14,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-09 19:06:14,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-02-09 19:06:14,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 19:06:14,034 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-09 19:06:14,219 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 [2022-02-09 19:06:14,220 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 19:06:14,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 19:06:14,220 INFO L85 PathProgramCache]: Analyzing trace with hash -694575815, now seen corresponding path program 5 times [2022-02-09 19:06:14,221 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 19:06:14,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504576257] [2022-02-09 19:06:14,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 19:06:14,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 19:06:15,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 19:06:23,329 INFO L134 CoverageAnalysis]: Checked inductivity of 57203 backedges. 45 proven. 56699 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2022-02-09 19:06:23,330 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 19:06:23,330 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504576257] [2022-02-09 19:06:23,330 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504576257] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 19:06:23,330 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226601876] [2022-02-09 19:06:23,330 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-09 19:06:23,330 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 19:06:23,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 19:06:23,335 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 19:06:23,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-09 19:06:31,236 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 168 check-sat command(s) [2022-02-09 19:06:31,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 19:06:31,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 2294 conjuncts, 178 conjunts are in the unsatisfiable core [2022-02-09 19:06:31,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 19:06:43,694 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-09 19:06:46,586 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-09 19:06:46,907 INFO L134 CoverageAnalysis]: Checked inductivity of 57203 backedges. 0 proven. 48518 refuted. 0 times theorem prover too weak. 8685 trivial. 0 not checked. [2022-02-09 19:06:46,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 19:06:48,316 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 19:06:48,316 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-02-09 19:06:51,160 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 19:06:51,160 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2022-02-09 19:06:51,757 INFO L134 CoverageAnalysis]: Checked inductivity of 57203 backedges. 0 proven. 45558 refuted. 0 times theorem prover too weak. 11645 trivial. 0 not checked. [2022-02-09 19:06:51,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226601876] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 19:06:51,757 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 19:06:51,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 90, 35] total 224 [2022-02-09 19:06:51,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799186031] [2022-02-09 19:06:51,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 19:06:51,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 225 states [2022-02-09 19:06:51,760 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 19:06:51,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 225 interpolants. [2022-02-09 19:06:51,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=579, Invalid=49821, Unknown=0, NotChecked=0, Total=50400 [2022-02-09 19:06:51,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:06:51,765 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 19:06:51,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 225 states, 225 states have (on average 5.04) internal successors, (1134), 224 states have internal predecessors, (1134), 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) [2022-02-09 19:06:51,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-02-09 19:06:51,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-02-09 19:06:51,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-02-09 19:06:51,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 19:06:51,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:07:55,649 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7668 transitions and produced 4476 states. [2022-02-09 19:07:55,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 19:07:55,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-09 19:07:55,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-02-09 19:07:55,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 19:07:55,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2022-02-09 19:07:55,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-09 19:07:55,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 19:07:55,850 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 19:07:55,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 19:07:55,851 INFO L85 PathProgramCache]: Analyzing trace with hash 423287277, now seen corresponding path program 6 times [2022-02-09 19:07:55,851 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 19:07:55,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093385258] [2022-02-09 19:07:55,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 19:07:55,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 19:07:57,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 19:08:07,366 INFO L134 CoverageAnalysis]: Checked inductivity of 75636 backedges. 59 proven. 74964 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2022-02-09 19:08:07,367 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 19:08:07,367 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093385258] [2022-02-09 19:08:07,367 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093385258] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 19:08:07,367 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181502992] [2022-02-09 19:08:07,367 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-09 19:08:07,368 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 19:08:07,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 19:08:07,369 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 19:08:07,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-09 19:08:08,699 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 173 check-sat command(s) [2022-02-09 19:08:08,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 19:08:08,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 2320 conjuncts, 82 conjunts are in the unsatisfiable core [2022-02-09 19:08:08,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 19:08:13,307 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-09 19:08:16,011 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-09 19:08:16,274 INFO L134 CoverageAnalysis]: Checked inductivity of 75636 backedges. 0 proven. 59230 refuted. 0 times theorem prover too weak. 16406 trivial. 0 not checked. [2022-02-09 19:08:16,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 19:08:17,886 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 19:08:17,887 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-02-09 19:08:19,440 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 19:08:19,440 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 22 [2022-02-09 19:08:19,806 INFO L134 CoverageAnalysis]: Checked inductivity of 75636 backedges. 0 proven. 59230 refuted. 0 times theorem prover too weak. 16406 trivial. 0 not checked. [2022-02-09 19:08:19,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181502992] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 19:08:19,807 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 19:08:19,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [150, 43, 43] total 192 [2022-02-09 19:08:19,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151725875] [2022-02-09 19:08:19,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 19:08:19,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 193 states [2022-02-09 19:08:19,809 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 19:08:19,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 193 interpolants. [2022-02-09 19:08:19,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=393, Invalid=36663, Unknown=0, NotChecked=0, Total=37056 [2022-02-09 19:08:19,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:08:19,811 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 19:08:19,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 193 states, 193 states have (on average 5.83419689119171) internal successors, (1126), 192 states have internal predecessors, (1126), 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) [2022-02-09 19:08:19,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-02-09 19:08:19,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-02-09 19:08:19,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-02-09 19:08:19,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 19:08:19,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 157 states. [2022-02-09 19:08:19,813 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:09:38,843 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 9076 transitions and produced 5128 states. [2022-02-09 19:09:38,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 19:09:38,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-09 19:09:38,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-02-09 19:09:38,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 19:09:38,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2022-02-09 19:09:38,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 185 states. [2022-02-09 19:09:38,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-09 19:09:39,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 19:09:39,045 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 19:09:39,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 19:09:39,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1047397677, now seen corresponding path program 7 times [2022-02-09 19:09:39,046 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 19:09:39,046 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850814309] [2022-02-09 19:09:39,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 19:09:39,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 19:09:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 19:09:53,002 INFO L134 CoverageAnalysis]: Checked inductivity of 96658 backedges. 73 proven. 95786 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2022-02-09 19:09:53,002 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 19:09:53,003 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850814309] [2022-02-09 19:09:53,003 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850814309] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 19:09:53,003 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547569088] [2022-02-09 19:09:53,003 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-09 19:09:53,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 19:09:53,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 19:09:53,004 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 19:09:53,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-09 19:09:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 19:09:53,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 3004 conjuncts, 410 conjunts are in the unsatisfiable core [2022-02-09 19:09:53,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 19:10:20,574 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 19:10:20,575 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-09 19:10:20,756 INFO L134 CoverageAnalysis]: Checked inductivity of 96658 backedges. 73 proven. 95786 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2022-02-09 19:10:20,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 19:10:39,534 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-02-09 19:10:39,535 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2022-02-09 19:10:40,959 INFO L134 CoverageAnalysis]: Checked inductivity of 96658 backedges. 73 proven. 95786 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2022-02-09 19:10:40,960 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547569088] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 19:10:40,960 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 19:10:40,960 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [172, 172, 172] total 342 [2022-02-09 19:10:40,960 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281802810] [2022-02-09 19:10:40,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 19:10:40,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 343 states [2022-02-09 19:10:40,962 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 19:10:40,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 343 interpolants. [2022-02-09 19:10:40,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=938, Invalid=116368, Unknown=0, NotChecked=0, Total=117306 [2022-02-09 19:10:40,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:10:40,967 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 19:10:40,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 343 states, 343 states have (on average 7.154518950437318) internal successors, (2454), 342 states have internal predecessors, (2454), 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) [2022-02-09 19:10:40,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-02-09 19:10:40,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-02-09 19:10:40,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-02-09 19:10:40,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 19:10:40,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 157 states. [2022-02-09 19:10:40,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 185 states. [2022-02-09 19:10:40,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:13:33,025 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7712 transitions and produced 4790 states. [2022-02-09 19:13:33,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 19:13:33,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-09 19:13:33,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2022-02-09 19:13:33,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-02-09 19:13:33,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2022-02-09 19:13:33,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 185 states. [2022-02-09 19:13:33,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2022-02-09 19:13:33,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-09 19:13:33,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-02-09 19:13:33,227 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 19:13:33,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 19:13:33,228 INFO L85 PathProgramCache]: Analyzing trace with hash 807638063, now seen corresponding path program 8 times [2022-02-09 19:13:33,228 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 19:13:33,228 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121839672] [2022-02-09 19:13:33,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 19:13:33,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 19:13:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 19:13:51,372 INFO L134 CoverageAnalysis]: Checked inductivity of 117591 backedges. 73 proven. 116719 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2022-02-09 19:13:51,373 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 19:13:51,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121839672] [2022-02-09 19:13:51,373 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121839672] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 19:13:51,373 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329200922] [2022-02-09 19:13:51,373 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 19:13:51,373 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 19:13:51,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 19:13:51,375 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 19:13:51,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-09 19:13:51,819 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 19:13:51,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 19:13:51,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 3301 conjuncts, 454 conjunts are in the unsatisfiable core [2022-02-09 19:13:51,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 19:14:27,769 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 19:14:27,770 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-02-09 19:14:27,976 INFO L134 CoverageAnalysis]: Checked inductivity of 117591 backedges. 73 proven. 116719 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2022-02-09 19:14:27,976 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 19:14:54,347 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-02-09 19:14:54,347 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2022-02-09 19:14:55,954 INFO L134 CoverageAnalysis]: Checked inductivity of 117591 backedges. 73 proven. 116719 refuted. 0 times theorem prover too weak. 799 trivial. 0 not checked. [2022-02-09 19:14:55,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329200922] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 19:14:55,955 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 19:14:55,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [194, 194, 194] total 386 [2022-02-09 19:14:55,958 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762601437] [2022-02-09 19:14:55,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 19:14:55,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 387 states [2022-02-09 19:14:55,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 19:14:55,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 387 interpolants. [2022-02-09 19:14:55,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1059, Invalid=148323, Unknown=0, NotChecked=0, Total=149382 [2022-02-09 19:14:55,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 19:14:55,971 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 19:14:55,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 387 states, 387 states have (on average 7.108527131782946) internal successors, (2751), 386 states have internal predecessors, (2751), 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) [2022-02-09 19:14:55,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-02-09 19:14:55,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-02-09 19:14:55,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 107 states. [2022-02-09 19:14:55,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-02-09 19:14:55,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 157 states. [2022-02-09 19:14:55,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 185 states. [2022-02-09 19:14:55,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2022-02-09 19:14:55,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-02-09 19:16:22,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-09 19:16:22,555 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 [2022-02-09 19:16:22,555 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-09 19:16:22,565 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 [2022-02-09 19:16:22,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 19:16:22,729 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 463 known predicates. [2022-02-09 19:16:22,732 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-02-09 19:16:22,734 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-09 19:16:22,734 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-09 19:16:22,734 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-09 19:16:22,741 INFO L732 BasicCegarLoop]: Path program histogram: [8] [2022-02-09 19:16:22,742 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-09 19:16:22,742 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 19:16:22,747 INFO L202 PluginConnector]: Adding new model horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 07:16:22 BasicIcfg [2022-02-09 19:16:22,747 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 19:16:22,747 INFO L158 Benchmark]: Toolchain (without parser) took 760978.32ms. Allocated memory was 185.6MB in the beginning and 1.0GB in the end (delta: 824.2MB). Free memory was 144.2MB in the beginning and 591.7MB in the end (delta: -447.5MB). Peak memory consumption was 377.8MB. Max. memory is 8.0GB. [2022-02-09 19:16:22,747 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 185.6MB. Free memory is still 145.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 19:16:22,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.29ms. Allocated memory is still 185.6MB. Free memory was 144.1MB in the beginning and 142.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 19:16:22,748 INFO L158 Benchmark]: Boogie Preprocessor took 13.94ms. Allocated memory is still 185.6MB. Free memory was 142.6MB in the beginning and 141.6MB in the end (delta: 989.0kB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-09 19:16:22,748 INFO L158 Benchmark]: RCFGBuilder took 198.91ms. Allocated memory is still 185.6MB. Free memory was 141.6MB in the beginning and 131.6MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-09 19:16:22,748 INFO L158 Benchmark]: TraceAbstraction took 760732.64ms. Allocated memory was 185.6MB in the beginning and 1.0GB in the end (delta: 824.2MB). Free memory was 131.1MB in the beginning and 591.7MB in the end (delta: -460.6MB). Peak memory consumption was 364.1MB. Max. memory is 8.0GB. [2022-02-09 19:16:22,749 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11ms. Allocated memory is still 185.6MB. Free memory is still 145.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.29ms. Allocated memory is still 185.6MB. Free memory was 144.1MB in the beginning and 142.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 13.94ms. Allocated memory is still 185.6MB. Free memory was 142.6MB in the beginning and 141.6MB in the end (delta: 989.0kB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 198.91ms. Allocated memory is still 185.6MB. Free memory was 141.6MB in the beginning and 131.6MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 760732.64ms. Allocated memory was 185.6MB in the beginning and 1.0GB in the end (delta: 824.2MB). Free memory was 131.1MB in the beginning and 591.7MB in the end (delta: -460.6MB). Peak memory consumption was 364.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 463 known predicates. - TimeoutResultAtElement [Line: 77]: 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 463 known predicates. - TimeoutResultAtElement [Line: 77]: 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 463 known predicates. - TimeoutResultAtElement [Line: 78]: 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 463 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 53 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 760.6s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 487.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=353occurred in iteration=0, InterpolantAutomatonStates: 925, 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: 0.6s SsaConstructionTime, 22.5s SatisfiabilityAnalysisTime, 247.9s InterpolantComputationTime, 14042 NumberOfCodeBlocks, 13900 NumberOfCodeBlocksAsserted, 475 NumberOfCheckSat, 21039 ConstructedInterpolants, 2835 QuantifiedInterpolants, 200911 SizeOfPredicates, 35 NumberOfNonLiveVariables, 16875 ConjunctsInSsa, 1814 ConjunctsInUnsatCore, 24 InterpolantComputations, 0 PerfectInterpolantSequences, 71773/1347255 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