/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/min-max-inc.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 05:47:44,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 05:47:44,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 05:47:44,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-16 05:47:44,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 05:47:44,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 05:47:44,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 05:47:44,920 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 [2022-02-16 05:47:44,938 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 05:47:44,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 05:47:44,939 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 05:47:44,939 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 05:47:44,942 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 05:47:44,942 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 05:47:44,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 05:47:44,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 05:47:44,943 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 05:47:44,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 05:47:44,944 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 05:47:44,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 05:47:44,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 05:47:44,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 05:47:44,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 05:47:44,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 05:47:44,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 05:47:44,944 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 05:47:44,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 05:47:44,944 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 05:47:44,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 05:47:44,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 05:47:44,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 05:47:44,945 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 05:47:44,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 05:47:44,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 05:47:44,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 05:47:44,947 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 05:47:44,947 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 05:47:44,947 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 05:47:44,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 05:47:44,947 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 05:47:44,947 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-16 05:47:44,947 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 05:47:44,947 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-16 05:47:44,947 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 05:47:45,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 05:47:45,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 05:47:45,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 05:47:45,139 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-16 05:47:45,140 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-16 05:47:45,141 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc.wvr.bpl [2022-02-16 05:47:45,141 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-inc.wvr.bpl' [2022-02-16 05:47:45,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 05:47:45,159 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-16 05:47:45,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 05:47:45,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 05:47:45,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 05:47:45,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:47:45" (1/1) ... [2022-02-16 05:47:45,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:47:45" (1/1) ... [2022-02-16 05:47:45,183 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-16 05:47:45,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 05:47:45,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 05:47:45,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 05:47:45,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 05:47:45,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:47:45" (1/1) ... [2022-02-16 05:47:45,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:47:45" (1/1) ... [2022-02-16 05:47:45,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:47:45" (1/1) ... [2022-02-16 05:47:45,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:47:45" (1/1) ... [2022-02-16 05:47:45,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:47:45" (1/1) ... [2022-02-16 05:47:45,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:47:45" (1/1) ... [2022-02-16 05:47:45,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:47:45" (1/1) ... [2022-02-16 05:47:45,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 05:47:45,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 05:47:45,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 05:47:45,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 05:47:45,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:47:45" (1/1) ... [2022-02-16 05:47:45,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 05:47:45,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:47:45,223 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) [2022-02-16 05:47:45,230 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 [2022-02-16 05:47:45,250 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-16 05:47:45,250 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-16 05:47:45,250 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-16 05:47:45,250 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-16 05:47:45,250 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-16 05:47:45,250 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-16 05:47:45,250 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-16 05:47:45,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 05:47:45,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 05:47:45,251 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-16 05:47:45,251 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-16 05:47:45,251 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-16 05:47:45,251 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-16 05:47:45,251 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-16 05:47:45,251 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-16 05:47:45,251 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 05:47:45,284 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 05:47:45,285 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 05:47:45,353 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 05:47:45,364 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 05:47:45,365 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-16 05:47:45,366 INFO L202 PluginConnector]: Adding new model min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 05:47:45 BoogieIcfgContainer [2022-02-16 05:47:45,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 05:47:45,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 05:47:45,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 05:47:45,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 05:47:45,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 05:47:45" (1/2) ... [2022-02-16 05:47:45,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110cc961 and model type min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 05:47:45, skipping insertion in model container [2022-02-16 05:47:45,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 05:47:45" (2/2) ... [2022-02-16 05:47:45,371 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-inc.wvr.bpl [2022-02-16 05:47:45,374 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 05:47:45,375 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 05:47:45,375 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 05:47:45,375 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 05:47:45,401 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-16 05:47:45,443 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 05:47:45,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:47:45,464 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) [2022-02-16 05:47:45,465 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 [2022-02-16 05:47:45,501 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 05:47:45,505 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 [2022-02-16 05:47:45,506 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-16 05:47:45,511 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 35 transitions, 102 flow [2022-02-16 05:47:45,603 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 710 states, 709 states have (on average 3.6473906911142455) internal successors, (2586), 709 states have internal predecessors, (2586), 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) [2022-02-16 05:47:45,633 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 359 transitions and produced 319 states. [2022-02-16 05:47:45,634 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:47:45,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:47:45,638 INFO L85 PathProgramCache]: Analyzing trace with hash -344369045, now seen corresponding path program 1 times [2022-02-16 05:47:45,643 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:47:45,643 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248154512] [2022-02-16 05:47:45,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:47:45,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:47:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:47:46,026 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 70 proven. 139 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-02-16 05:47:46,028 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:47:46,028 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248154512] [2022-02-16 05:47:46,028 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248154512] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:47:46,029 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109599956] [2022-02-16 05:47:46,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:47:46,029 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:47:46,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:47:46,032 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) [2022-02-16 05:47:46,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-16 05:47:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:47:46,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 16 conjunts are in the unsatisfiable core [2022-02-16 05:47:46,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:47:46,361 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 87 proven. 122 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-02-16 05:47:46,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:47:46,627 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 87 proven. 122 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-02-16 05:47:46,627 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109599956] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:47:46,627 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:47:46,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 27 [2022-02-16 05:47:46,629 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630841006] [2022-02-16 05:47:46,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:47:46,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-16 05:47:46,632 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:47:46,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-16 05:47:46,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2022-02-16 05:47:46,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:47:46,650 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:47:46,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 27 states have internal predecessors, (122), 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) [2022-02-16 05:47:46,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:47:47,160 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 401 transitions and produced 356 states. [2022-02-16 05:47:47,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:47:47,178 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-16 05:47:47,361 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 [2022-02-16 05:47:47,361 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:47:47,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:47:47,362 INFO L85 PathProgramCache]: Analyzing trace with hash 2095025683, now seen corresponding path program 2 times [2022-02-16 05:47:47,362 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:47:47,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976291719] [2022-02-16 05:47:47,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:47:47,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:47:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:47:47,880 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 214 proven. 175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 05:47:47,880 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:47:47,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976291719] [2022-02-16 05:47:47,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976291719] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:47:47,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431110340] [2022-02-16 05:47:47,881 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 05:47:47,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:47:47,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:47:47,882 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) [2022-02-16 05:47:47,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-16 05:47:47,944 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 05:47:47,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 05:47:47,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 20 conjunts are in the unsatisfiable core [2022-02-16 05:47:47,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:47:48,426 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 156 proven. 89 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-02-16 05:47:48,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:47:48,671 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 156 proven. 89 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-02-16 05:47:48,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431110340] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:47:48,671 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:47:48,671 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 20, 20] total 56 [2022-02-16 05:47:48,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286340623] [2022-02-16 05:47:48,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:47:48,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-02-16 05:47:48,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:47:48,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-02-16 05:47:48,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=381, Invalid=2811, Unknown=0, NotChecked=0, Total=3192 [2022-02-16 05:47:48,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:47:48,676 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:47:48,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 2.9649122807017543) internal successors, (169), 56 states have internal predecessors, (169), 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) [2022-02-16 05:47:48,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:47:48,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:47:50,094 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 482 transitions and produced 424 states. [2022-02-16 05:47:50,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:47:50,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-16 05:47:50,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-16 05:47:50,306 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 [2022-02-16 05:47:50,307 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:47:50,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:47:50,307 INFO L85 PathProgramCache]: Analyzing trace with hash -857448187, now seen corresponding path program 3 times [2022-02-16 05:47:50,307 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:47:50,308 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414397375] [2022-02-16 05:47:50,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:47:50,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:47:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:47:50,962 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 412 proven. 202 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 05:47:50,962 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:47:50,962 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414397375] [2022-02-16 05:47:50,962 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414397375] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:47:50,963 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135590504] [2022-02-16 05:47:50,963 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-16 05:47:50,963 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:47:50,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:47:50,980 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) [2022-02-16 05:47:50,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-16 05:47:51,094 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2022-02-16 05:47:51,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 05:47:51,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 27 conjunts are in the unsatisfiable core [2022-02-16 05:47:51,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:47:51,777 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 387 proven. 100 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-02-16 05:47:51,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:47:52,175 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 387 proven. 100 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-02-16 05:47:52,176 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135590504] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:47:52,176 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:47:52,176 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 27, 27] total 73 [2022-02-16 05:47:52,176 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823054165] [2022-02-16 05:47:52,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:47:52,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2022-02-16 05:47:52,177 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:47:52,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2022-02-16 05:47:52,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=835, Invalid=4567, Unknown=0, NotChecked=0, Total=5402 [2022-02-16 05:47:52,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:47:52,180 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:47:52,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 2.7972972972972974) internal successors, (207), 73 states have internal predecessors, (207), 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) [2022-02-16 05:47:52,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:47:52,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-16 05:47:52,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:47:52,984 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 628 transitions and produced 538 states. [2022-02-16 05:47:52,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:47:52,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:47:52,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:47:53,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-16 05:47:53,203 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 [2022-02-16 05:47:53,204 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:47:53,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:47:53,204 INFO L85 PathProgramCache]: Analyzing trace with hash 390292173, now seen corresponding path program 4 times [2022-02-16 05:47:53,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:47:53,205 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539424277] [2022-02-16 05:47:53,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:47:53,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:47:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:47:53,713 INFO L134 CoverageAnalysis]: Checked inductivity of 949 backedges. 324 proven. 498 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-02-16 05:47:53,714 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:47:53,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539424277] [2022-02-16 05:47:53,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539424277] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:47:53,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640336682] [2022-02-16 05:47:53,714 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-16 05:47:53,714 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:47:53,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:47:53,715 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) [2022-02-16 05:47:53,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-16 05:47:53,815 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-16 05:47:53,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 05:47:53,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 40 conjunts are in the unsatisfiable core [2022-02-16 05:47:53,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:47:54,897 INFO L134 CoverageAnalysis]: Checked inductivity of 949 backedges. 434 proven. 369 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-02-16 05:47:54,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:47:55,208 INFO L134 CoverageAnalysis]: Checked inductivity of 949 backedges. 434 proven. 369 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-02-16 05:47:55,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640336682] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:47:55,209 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:47:55,209 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 38, 38] total 76 [2022-02-16 05:47:55,209 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412079553] [2022-02-16 05:47:55,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:47:55,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-02-16 05:47:55,210 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:47:55,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-02-16 05:47:55,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=803, Invalid=5049, Unknown=0, NotChecked=0, Total=5852 [2022-02-16 05:47:55,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:47:55,212 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:47:55,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 2.9220779220779223) internal successors, (225), 76 states have internal predecessors, (225), 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) [2022-02-16 05:47:55,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:47:55,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:47:55,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:47:55,212 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:47:58,085 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 719 transitions and produced 616 states. [2022-02-16 05:47:58,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:47:58,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:47:58,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:47:58,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-16 05:47:58,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-16 05:47:58,286 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 [2022-02-16 05:47:58,286 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:47:58,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:47:58,286 INFO L85 PathProgramCache]: Analyzing trace with hash -714641837, now seen corresponding path program 5 times [2022-02-16 05:47:58,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:47:58,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790926028] [2022-02-16 05:47:58,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:47:58,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:47:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:47:58,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 324 proven. 707 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2022-02-16 05:47:58,922 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:47:58,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790926028] [2022-02-16 05:47:58,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790926028] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:47:58,923 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162664858] [2022-02-16 05:47:58,923 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-16 05:47:58,923 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:47:58,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:47:58,924 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) [2022-02-16 05:47:58,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-16 05:47:59,589 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 27 check-sat command(s) [2022-02-16 05:47:59,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 05:47:59,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 43 conjunts are in the unsatisfiable core [2022-02-16 05:47:59,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:48:00,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 646 proven. 400 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2022-02-16 05:48:00,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:48:00,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 646 proven. 400 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2022-02-16 05:48:00,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162664858] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:48:00,989 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:48:00,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 43, 43] total 83 [2022-02-16 05:48:00,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844285330] [2022-02-16 05:48:00,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:48:00,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2022-02-16 05:48:00,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:48:00,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2022-02-16 05:48:00,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=6026, Unknown=0, NotChecked=0, Total=6972 [2022-02-16 05:48:00,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:48:00,992 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:48:00,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 84 states have (on average 2.4761904761904763) internal successors, (208), 83 states have internal predecessors, (208), 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) [2022-02-16 05:48:00,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:48:00,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:48:00,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:48:00,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2022-02-16 05:48:00,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:48:02,918 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 807 transitions and produced 692 states. [2022-02-16 05:48:02,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:48:02,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:48:02,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:48:02,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-16 05:48:02,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-16 05:48:02,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-16 05:48:03,121 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 [2022-02-16 05:48:03,122 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:48:03,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:48:03,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1338061323, now seen corresponding path program 6 times [2022-02-16 05:48:03,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:48:03,122 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975127719] [2022-02-16 05:48:03,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:48:03,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:48:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:48:03,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 576 proven. 823 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2022-02-16 05:48:03,677 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:48:03,677 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975127719] [2022-02-16 05:48:03,677 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975127719] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:48:03,677 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692013530] [2022-02-16 05:48:03,677 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-16 05:48:03,677 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:48:03,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:48:03,678 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) [2022-02-16 05:48:03,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-16 05:48:03,961 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2022-02-16 05:48:03,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 05:48:03,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 44 conjunts are in the unsatisfiable core [2022-02-16 05:48:03,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:48:04,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-16 05:48:04,761 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-02-16 05:48:04,929 INFO L353 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-02-16 05:48:04,929 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 22 [2022-02-16 05:48:05,178 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-02-16 05:48:05,178 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 24 [2022-02-16 05:48:05,343 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-16 05:48:05,343 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 35 treesize of output 35 [2022-02-16 05:48:05,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 148 proven. 560 refuted. 0 times theorem prover too weak. 1097 trivial. 0 not checked. [2022-02-16 05:48:05,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:48:07,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 05:48:07,552 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 05:48:07,552 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-16 05:48:07,558 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-02-16 05:48:07,559 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 34 treesize of output 29 [2022-02-16 05:48:07,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1805 backedges. 251 proven. 367 refuted. 0 times theorem prover too weak. 1187 trivial. 0 not checked. [2022-02-16 05:48:07,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692013530] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:48:07,667 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:48:07,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 19, 22] total 86 [2022-02-16 05:48:07,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504598802] [2022-02-16 05:48:07,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:48:07,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-02-16 05:48:07,668 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:48:07,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-02-16 05:48:07,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=828, Invalid=6482, Unknown=0, NotChecked=0, Total=7310 [2022-02-16 05:48:07,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:48:07,669 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:48:07,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 2.686046511627907) internal successors, (231), 86 states have internal predecessors, (231), 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) [2022-02-16 05:48:07,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:48:07,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:48:07,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:48:07,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-16 05:48:07,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-16 05:48:07,670 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:48:11,624 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 789 transitions and produced 645 states. [2022-02-16 05:48:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:48:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:48:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:48:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-16 05:48:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-16 05:48:11,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-16 05:48:11,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-16 05:48:11,825 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 [2022-02-16 05:48:11,826 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:48:11,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:48:11,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1535042943, now seen corresponding path program 7 times [2022-02-16 05:48:11,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:48:11,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052641004] [2022-02-16 05:48:11,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:48:11,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:48:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:48:12,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 576 proven. 770 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2022-02-16 05:48:12,543 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:48:12,543 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052641004] [2022-02-16 05:48:12,543 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052641004] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:48:12,543 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606084660] [2022-02-16 05:48:12,544 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-16 05:48:12,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:48:12,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:48:12,545 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) [2022-02-16 05:48:12,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-16 05:48:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:48:12,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 48 conjunts are in the unsatisfiable core [2022-02-16 05:48:12,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:48:12,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 625 proven. 721 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2022-02-16 05:48:12,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:48:13,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 625 proven. 721 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2022-02-16 05:48:13,468 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606084660] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:48:13,468 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:48:13,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 59 [2022-02-16 05:48:13,468 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466416590] [2022-02-16 05:48:13,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:48:13,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-02-16 05:48:13,469 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:48:13,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-02-16 05:48:13,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=913, Invalid=2627, Unknown=0, NotChecked=0, Total=3540 [2022-02-16 05:48:13,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:48:13,470 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:48:13,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 2.933333333333333) internal successors, (176), 59 states have internal predecessors, (176), 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) [2022-02-16 05:48:13,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:48:13,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:48:13,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:48:13,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-16 05:48:13,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-16 05:48:13,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-16 05:48:13,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:48:14,540 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 887 transitions and produced 755 states. [2022-02-16 05:48:14,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:48:14,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:48:14,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:48:14,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-16 05:48:14,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-16 05:48:14,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-16 05:48:14,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-16 05:48:14,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-02-16 05:48:14,758 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 [2022-02-16 05:48:14,759 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:48:14,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:48:14,759 INFO L85 PathProgramCache]: Analyzing trace with hash -985651273, now seen corresponding path program 8 times [2022-02-16 05:48:14,759 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:48:14,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125744452] [2022-02-16 05:48:14,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:48:14,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:48:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:48:15,829 INFO L134 CoverageAnalysis]: Checked inductivity of 2313 backedges. 1231 proven. 676 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2022-02-16 05:48:15,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:48:15,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125744452] [2022-02-16 05:48:15,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125744452] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:48:15,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497897803] [2022-02-16 05:48:15,830 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 05:48:15,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:48:15,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:48:15,831 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) [2022-02-16 05:48:15,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-16 05:48:15,931 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 05:48:15,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 05:48:15,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 55 conjunts are in the unsatisfiable core [2022-02-16 05:48:15,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:48:16,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2313 backedges. 1211 proven. 676 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2022-02-16 05:48:16,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:48:16,634 INFO L134 CoverageAnalysis]: Checked inductivity of 2313 backedges. 1211 proven. 676 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2022-02-16 05:48:16,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497897803] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:48:16,634 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:48:16,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 55, 55] total 60 [2022-02-16 05:48:16,635 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919163508] [2022-02-16 05:48:16,635 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:48:16,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-02-16 05:48:16,635 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:48:16,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-02-16 05:48:16,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=962, Invalid=2698, Unknown=0, NotChecked=0, Total=3660 [2022-02-16 05:48:16,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:48:16,637 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:48:16,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 2.557377049180328) internal successors, (156), 60 states have internal predecessors, (156), 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) [2022-02-16 05:48:16,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:48:16,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:48:16,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:48:16,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-16 05:48:16,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-16 05:48:16,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 78 states. [2022-02-16 05:48:16,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-02-16 05:48:16,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:48:36,448 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5974 transitions and produced 2755 states. [2022-02-16 05:48:36,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:48:36,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:48:36,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:48:36,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-02-16 05:48:36,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-02-16 05:48:36,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 188 states. [2022-02-16 05:48:36,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-16 05:48:36,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-02-16 05:48:36,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-16 05:48:36,653 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 [2022-02-16 05:48:36,654 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:48:36,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:48:36,654 INFO L85 PathProgramCache]: Analyzing trace with hash 249615511, now seen corresponding path program 9 times [2022-02-16 05:48:36,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:48:36,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881779211] [2022-02-16 05:48:36,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:48:36,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:48:36,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:48:45,448 INFO L134 CoverageAnalysis]: Checked inductivity of 16173 backedges. 14880 proven. 1293 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 05:48:45,448 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:48:45,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881779211] [2022-02-16 05:48:45,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881779211] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:48:45,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750062750] [2022-02-16 05:48:45,449 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-16 05:48:45,449 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:48:45,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:48:45,450 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 05:48:45,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-16 05:48:49,025 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 76 check-sat command(s) [2022-02-16 05:48:49,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 05:48:49,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 105 conjunts are in the unsatisfiable core [2022-02-16 05:48:49,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:48:54,519 INFO L134 CoverageAnalysis]: Checked inductivity of 16173 backedges. 6939 proven. 1024 refuted. 0 times theorem prover too weak. 8210 trivial. 0 not checked. [2022-02-16 05:48:54,520 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:48:56,762 INFO L134 CoverageAnalysis]: Checked inductivity of 16173 backedges. 5866 proven. 4855 refuted. 0 times theorem prover too weak. 5452 trivial. 0 not checked. [2022-02-16 05:48:56,762 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750062750] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:48:56,762 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:48:56,762 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [187, 67, 88] total 274 [2022-02-16 05:48:56,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322953443] [2022-02-16 05:48:56,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:48:56,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 275 states [2022-02-16 05:48:56,763 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:48:56,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 275 interpolants. [2022-02-16 05:48:56,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13961, Invalid=61389, Unknown=0, NotChecked=0, Total=75350 [2022-02-16 05:48:56,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:48:56,772 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:48:56,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 275 states, 275 states have (on average 2.1672727272727275) internal successors, (596), 274 states have internal predecessors, (596), 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) [2022-02-16 05:48:56,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:48:56,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:48:56,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:48:56,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-02-16 05:48:56,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2022-02-16 05:48:56,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 188 states. [2022-02-16 05:48:56,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-02-16 05:48:56,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2022-02-16 05:48:56,773 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:49:01,852 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 6040 transitions and produced 2809 states. [2022-02-16 05:49:01,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:49:01,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:49:01,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:49:01,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-02-16 05:49:01,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-02-16 05:49:01,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 188 states. [2022-02-16 05:49:01,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-16 05:49:01,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-02-16 05:49:01,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-16 05:49:01,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-16 05:49:02,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-02-16 05:49:02,061 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:49:02,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:49:02,063 INFO L85 PathProgramCache]: Analyzing trace with hash -958498205, now seen corresponding path program 10 times [2022-02-16 05:49:02,063 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:49:02,063 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569400335] [2022-02-16 05:49:02,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:49:02,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:49:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:49:03,517 INFO L134 CoverageAnalysis]: Checked inductivity of 16593 backedges. 1296 proven. 14703 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2022-02-16 05:49:03,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:49:03,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569400335] [2022-02-16 05:49:03,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569400335] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:49:03,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88371284] [2022-02-16 05:49:03,518 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-16 05:49:03,518 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:49:03,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:49:03,524 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 05:49:03,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-16 05:49:03,673 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-16 05:49:03,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 05:49:03,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 79 conjunts are in the unsatisfiable core [2022-02-16 05:49:03,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:49:06,567 INFO L134 CoverageAnalysis]: Checked inductivity of 16593 backedges. 8045 proven. 1444 refuted. 0 times theorem prover too weak. 7104 trivial. 0 not checked. [2022-02-16 05:49:06,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:49:07,039 INFO L134 CoverageAnalysis]: Checked inductivity of 16593 backedges. 8045 proven. 1444 refuted. 0 times theorem prover too weak. 7104 trivial. 0 not checked. [2022-02-16 05:49:07,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88371284] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:49:07,039 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:49:07,039 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 79, 79] total 153 [2022-02-16 05:49:07,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556178311] [2022-02-16 05:49:07,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:49:07,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 154 states [2022-02-16 05:49:07,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:49:07,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 154 interpolants. [2022-02-16 05:49:07,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3083, Invalid=20479, Unknown=0, NotChecked=0, Total=23562 [2022-02-16 05:49:07,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:49:07,044 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:49:07,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 154 states, 154 states have (on average 2.75974025974026) internal successors, (425), 153 states have internal predecessors, (425), 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) [2022-02-16 05:49:07,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:49:07,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:49:07,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:49:07,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-02-16 05:49:07,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2022-02-16 05:49:07,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 188 states. [2022-02-16 05:49:07,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-02-16 05:49:07,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2022-02-16 05:49:07,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-02-16 05:49:07,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:49:13,122 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 6640 transitions and produced 3069 states. [2022-02-16 05:49:13,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:49:13,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:49:13,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:49:13,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-02-16 05:49:13,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-02-16 05:49:13,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 188 states. [2022-02-16 05:49:13,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-16 05:49:13,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-02-16 05:49:13,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-16 05:49:13,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2022-02-16 05:49:13,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-16 05:49:13,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-16 05:49:13,335 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:49:13,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:49:13,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1087836473, now seen corresponding path program 11 times [2022-02-16 05:49:13,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:49:13,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404215634] [2022-02-16 05:49:13,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:49:13,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:49:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:49:15,620 INFO L134 CoverageAnalysis]: Checked inductivity of 22113 backedges. 1764 proven. 19719 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-02-16 05:49:15,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:49:15,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404215634] [2022-02-16 05:49:15,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404215634] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:49:15,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842917276] [2022-02-16 05:49:15,621 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-16 05:49:15,621 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:49:15,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:49:15,622 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 05:49:15,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-16 05:57:42,331 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 111 check-sat command(s) [2022-02-16 05:57:42,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 05:57:42,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 1215 conjuncts, 92 conjunts are in the unsatisfiable core [2022-02-16 05:57:42,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:57:48,166 INFO L134 CoverageAnalysis]: Checked inductivity of 22113 backedges. 11026 proven. 1936 refuted. 0 times theorem prover too weak. 9151 trivial. 0 not checked. [2022-02-16 05:57:48,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:57:49,053 INFO L134 CoverageAnalysis]: Checked inductivity of 22113 backedges. 11026 proven. 1936 refuted. 0 times theorem prover too weak. 9151 trivial. 0 not checked. [2022-02-16 05:57:49,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842917276] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:57:49,054 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:57:49,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 92, 92] total 180 [2022-02-16 05:57:49,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882322824] [2022-02-16 05:57:49,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:57:49,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 181 states [2022-02-16 05:57:49,055 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:57:49,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 181 interpolants. [2022-02-16 05:57:49,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4239, Invalid=28341, Unknown=0, NotChecked=0, Total=32580 [2022-02-16 05:57:49,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:57:49,058 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:57:49,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 181 states, 181 states have (on average 2.9171270718232045) internal successors, (528), 180 states have internal predecessors, (528), 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) [2022-02-16 05:57:49,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:57:49,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:57:49,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:57:49,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-02-16 05:57:49,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2022-02-16 05:57:49,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 188 states. [2022-02-16 05:57:49,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-02-16 05:57:49,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2022-02-16 05:57:49,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-02-16 05:57:49,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 193 states. [2022-02-16 05:57:49,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:57:58,151 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7539 transitions and produced 3466 states. [2022-02-16 05:57:58,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:57:58,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:57:58,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:57:58,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-02-16 05:57:58,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-02-16 05:57:58,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 188 states. [2022-02-16 05:57:58,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-16 05:57:58,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-02-16 05:57:58,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-16 05:57:58,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2022-02-16 05:57:58,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2022-02-16 05:57:58,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-16 05:57:58,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-02-16 05:57:58,360 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:57:58,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:57:58,361 INFO L85 PathProgramCache]: Analyzing trace with hash -495868659, now seen corresponding path program 12 times [2022-02-16 05:57:58,362 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:57:58,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135832221] [2022-02-16 05:57:58,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:57:58,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:57:58,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 05:58:01,414 INFO L134 CoverageAnalysis]: Checked inductivity of 28526 backedges. 2401 proven. 25459 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2022-02-16 05:58:01,414 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 05:58:01,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135832221] [2022-02-16 05:58:01,414 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135832221] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 05:58:01,414 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833281051] [2022-02-16 05:58:01,414 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-16 05:58:01,415 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 05:58:01,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 05:58:01,416 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 05:58:01,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-16 05:58:55,781 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 123 check-sat command(s) [2022-02-16 05:58:55,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 05:58:55,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 1376 conjuncts, 216 conjunts are in the unsatisfiable core [2022-02-16 05:58:55,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 05:59:10,511 INFO L134 CoverageAnalysis]: Checked inductivity of 28526 backedges. 25924 proven. 2601 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-16 05:59:10,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 05:59:25,036 INFO L134 CoverageAnalysis]: Checked inductivity of 28526 backedges. 23802 proven. 4724 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 05:59:25,037 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833281051] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 05:59:25,059 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 05:59:25,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [100, 207, 213] total 471 [2022-02-16 05:59:25,060 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007436160] [2022-02-16 05:59:25,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 05:59:25,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 472 states [2022-02-16 05:59:25,061 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 05:59:25,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 472 interpolants. [2022-02-16 05:59:25,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42674, Invalid=179638, Unknown=0, NotChecked=0, Total=222312 [2022-02-16 05:59:25,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:59:25,079 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 05:59:25,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 472 states, 472 states have (on average 2.63771186440678) internal successors, (1245), 471 states have internal predecessors, (1245), 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) [2022-02-16 05:59:25,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:59:25,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-16 05:59:25,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-16 05:59:25,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-02-16 05:59:25,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2022-02-16 05:59:25,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 188 states. [2022-02-16 05:59:25,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-02-16 05:59:25,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2022-02-16 05:59:25,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-02-16 05:59:25,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 193 states. [2022-02-16 05:59:25,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 225 states. [2022-02-16 05:59:25,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 05:59:56,806 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 8996 transitions and produced 4267 states. [2022-02-16 05:59:56,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 05:59:56,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-16 05:59:56,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-16 05:59:56,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-02-16 05:59:56,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-02-16 05:59:56,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-02-16 05:59:56,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-16 05:59:56,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-02-16 05:59:56,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-02-16 05:59:56,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2022-02-16 05:59:56,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2022-02-16 05:59:56,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 369 states. [2022-02-16 05:59:56,849 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-02-16 05:59:57,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-02-16 05:59:57,015 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 05:59:57,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 05:59:57,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1040968169, now seen corresponding path program 13 times [2022-02-16 05:59:57,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 05:59:57,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733669414] [2022-02-16 05:59:57,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 05:59:57,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 05:59:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 06:00:07,481 INFO L134 CoverageAnalysis]: Checked inductivity of 44066 backedges. 42840 proven. 889 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2022-02-16 06:00:07,482 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 06:00:07,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733669414] [2022-02-16 06:00:07,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733669414] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 06:00:07,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774959941] [2022-02-16 06:00:07,482 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-16 06:00:07,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 06:00:07,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 06:00:07,489 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 06:00:07,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-02-16 06:00:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 06:00:07,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 221 conjunts are in the unsatisfiable core [2022-02-16 06:00:07,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 06:00:36,281 INFO L134 CoverageAnalysis]: Checked inductivity of 44066 backedges. 27879 proven. 11881 refuted. 0 times theorem prover too weak. 4306 trivial. 0 not checked. [2022-02-16 06:00:36,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 06:00:37,344 INFO L134 CoverageAnalysis]: Checked inductivity of 44066 backedges. 27879 proven. 11881 refuted. 0 times theorem prover too weak. 4306 trivial. 0 not checked. [2022-02-16 06:00:37,344 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774959941] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 06:00:37,344 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 06:00:37,345 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [181, 221, 221] total 401 [2022-02-16 06:00:37,345 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971794411] [2022-02-16 06:00:37,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 06:00:37,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 402 states [2022-02-16 06:00:37,354 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 06:00:37,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 402 interpolants. [2022-02-16 06:00:37,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21246, Invalid=139956, Unknown=0, NotChecked=0, Total=161202 [2022-02-16 06:00:37,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 06:00:37,379 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 06:00:37,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 402 states, 402 states have (on average 2.470149253731343) internal successors, (993), 401 states have internal predecessors, (993), 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) [2022-02-16 06:00:37,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 06:00:37,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-02-16 06:00:37,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-16 06:00:37,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-02-16 06:00:37,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2022-02-16 06:00:37,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 190 states. [2022-02-16 06:00:37,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-02-16 06:00:37,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2022-02-16 06:00:37,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2022-02-16 06:00:37,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 193 states. [2022-02-16 06:00:37,380 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 225 states. [2022-02-16 06:00:37,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 369 states. [2022-02-16 06:00:37,381 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 06:01:09,431 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4201 transitions and produced 3248 states. [2022-02-16 06:01:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-16 06:01:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-16 06:01:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-16 06:01:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-02-16 06:01:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-02-16 06:01:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-02-16 06:01:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-16 06:01:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2022-02-16 06:01:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-02-16 06:01:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2022-02-16 06:01:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2022-02-16 06:01:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 369 states. [2022-02-16 06:01:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 477 states. [2022-02-16 06:01:09,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-02-16 06:01:09,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 06:01:09,648 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-16 06:01:09,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 06:01:09,649 INFO L85 PathProgramCache]: Analyzing trace with hash -431075193, now seen corresponding path program 14 times [2022-02-16 06:01:09,649 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 06:01:09,649 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954191981] [2022-02-16 06:01:09,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 06:01:09,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 06:01:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 06:01:27,799 INFO L134 CoverageAnalysis]: Checked inductivity of 63787 backedges. 62826 proven. 621 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2022-02-16 06:01:27,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 06:01:27,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954191981] [2022-02-16 06:01:27,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954191981] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 06:01:27,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774653712] [2022-02-16 06:01:27,801 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 06:01:27,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 06:01:27,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 06:01:27,812 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 06:01:27,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-02-16 06:01:28,168 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 06:01:28,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 06:01:28,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 2045 conjuncts, 233 conjunts are in the unsatisfiable core [2022-02-16 06:01:28,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 06:01:57,633 INFO L134 CoverageAnalysis]: Checked inductivity of 63787 backedges. 38694 proven. 13225 refuted. 0 times theorem prover too weak. 11868 trivial. 0 not checked. [2022-02-16 06:01:57,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 06:01:58,833 INFO L134 CoverageAnalysis]: Checked inductivity of 63787 backedges. 38694 proven. 13225 refuted. 0 times theorem prover too weak. 11868 trivial. 0 not checked. [2022-02-16 06:01:58,834 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774653712] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 06:01:58,834 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 06:01:58,834 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [234, 233, 233] total 466 [2022-02-16 06:01:58,835 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124169772] [2022-02-16 06:01:58,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 06:01:58,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 467 states [2022-02-16 06:01:58,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 06:01:58,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 467 interpolants. [2022-02-16 06:01:58,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27614, Invalid=190008, Unknown=0, NotChecked=0, Total=217622 [2022-02-16 06:01:58,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 06:01:58,853 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 06:01:58,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 467 states, 467 states have (on average 2.3404710920770877) internal successors, (1093), 466 states have internal predecessors, (1093), 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) [2022-02-16 06:01:58,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-16 06:01:58,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-02-16 06:01:58,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-16 06:01:58,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-02-16 06:01:58,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2022-02-16 06:01:58,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 192 states. [2022-02-16 06:01:58,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-02-16 06:01:58,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 83 states. [2022-02-16 06:01:58,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2022-02-16 06:01:58,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 193 states. [2022-02-16 06:01:58,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 225 states. [2022-02-16 06:01:58,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 369 states. [2022-02-16 06:01:58,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 477 states. [2022-02-16 06:01:58,855 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-02-16 06:02:20,518 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 [2022-02-16 06:02:20,525 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 [2022-02-16 06:02:20,526 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-16 06:02:20,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-02-16 06:02:20,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 06:02:20,757 WARN L594 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-02-16 06:02:20,759 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-02-16 06:02:20,760 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-16 06:02:20,760 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-16 06:02:20,760 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-16 06:02:20,760 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-16 06:02:20,764 INFO L732 BasicCegarLoop]: Path program histogram: [14] [2022-02-16 06:02:20,767 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-16 06:02:20,767 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-16 06:02:20,768 INFO L202 PluginConnector]: Adding new model min-max-inc.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 06:02:20 BasicIcfg [2022-02-16 06:02:20,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-16 06:02:20,769 INFO L158 Benchmark]: Toolchain (without parser) took 875610.18ms. Allocated memory was 196.1MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 154.3MB in the beginning and 581.8MB in the end (delta: -427.4MB). Peak memory consumption was 752.9MB. Max. memory is 8.0GB. [2022-02-16 06:02:20,769 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 196.1MB. Free memory is still 155.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 06:02:20,769 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.88ms. Allocated memory is still 196.1MB. Free memory was 154.3MB in the beginning and 152.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-16 06:02:20,769 INFO L158 Benchmark]: Boogie Preprocessor took 17.23ms. Allocated memory is still 196.1MB. Free memory was 152.7MB in the beginning and 151.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 06:02:20,769 INFO L158 Benchmark]: RCFGBuilder took 163.60ms. Allocated memory is still 196.1MB. Free memory was 151.7MB in the beginning and 141.9MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-16 06:02:20,770 INFO L158 Benchmark]: TraceAbstraction took 875400.96ms. Allocated memory was 196.1MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 141.4MB in the beginning and 581.8MB in the end (delta: -440.4MB). Peak memory consumption was 740.3MB. Max. memory is 8.0GB. [2022-02-16 06:02:20,771 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 0.09ms. Allocated memory is still 196.1MB. Free memory is still 155.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.88ms. Allocated memory is still 196.1MB. Free memory was 154.3MB in the beginning and 152.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.23ms. Allocated memory is still 196.1MB. Free memory was 152.7MB in the beginning and 151.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 163.60ms. Allocated memory is still 196.1MB. Free memory was 151.7MB in the beginning and 141.9MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 875400.96ms. Allocated memory was 196.1MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 141.4MB in the beginning and 581.8MB in the end (delta: -440.4MB). Peak memory consumption was 740.3MB. 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: 77]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 69]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 70]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 56 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 875.3s, OverallIterations: 14, TraceHistogramMax: 0, PathProgramHistogramMax: 14, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 138.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=710occurred in iteration=0, InterpolantAutomatonStates: 2458, 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: 0.4s SsaConstructionTime, 567.2s SatisfiabilityAnalysisTime, 165.5s InterpolantComputationTime, 8688 NumberOfCodeBlocks, 8574 NumberOfCodeBlocksAsserted, 400 NumberOfCheckSat, 12990 ConstructedInterpolants, 117 QuantifiedInterpolants, 64708 SizeOfPredicates, 45 NumberOfNonLiveVariables, 11122 ConjunctsInSsa, 1239 ConjunctsInUnsatCore, 42 InterpolantComputations, 0 PerfectInterpolantSequences, 459468/602199 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