/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-10 00:55:40,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 00:55:40,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 00:55:40,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 00:55:40,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 00:55:40,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 00:55:40,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 00:55:40,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 00:55:40,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 00:55:40,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 00:55:40,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 00:55:40,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 00:55:40,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 00:55:40,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 00:55:40,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 00:55:40,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 00:55:40,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 00:55:40,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 00:55:40,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 00:55:40,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 00:55:40,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 00:55:40,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 00:55:40,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 00:55:40,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 00:55:40,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 00:55:40,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 00:55:40,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 00:55:40,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 00:55:40,214 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf [2022-02-10 00:55:40,246 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 00:55:40,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 00:55:40,258 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 00:55:40,258 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 00:55:40,259 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 00:55:40,259 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 00:55:40,259 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 00:55:40,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 00:55:40,260 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 00:55:40,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 00:55:40,260 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 00:55:40,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 00:55:40,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 00:55:40,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 00:55:40,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 00:55:40,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 00:55:40,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 00:55:40,261 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 00:55:40,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 00:55:40,262 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 00:55:40,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 00:55:40,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 00:55:40,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 00:55:40,263 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 00:55:40,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 00:55:40,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 00:55:40,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 00:55:40,264 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-10 00:55:40,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 00:55:40,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 00:55:40,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 00:55:40,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 00:55:40,265 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 00:55:40,265 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-10 00:55:40,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 00:55:40,265 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-10 00:55:40,265 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 00:55:40,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 00:55:40,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 00:55:40,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 00:55:40,496 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-10 00:55:40,497 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-10 00:55:40,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl [2022-02-10 00:55:40,498 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl' [2022-02-10 00:55:40,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 00:55:40,516 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-10 00:55:40,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 00:55:40,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 00:55:40,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 00:55:40,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:55:40" (1/1) ... [2022-02-10 00:55:40,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:55:40" (1/1) ... [2022-02-10 00:55:40,544 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-10 00:55:40,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 00:55:40,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 00:55:40,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 00:55:40,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 00:55:40,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:55:40" (1/1) ... [2022-02-10 00:55:40,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:55:40" (1/1) ... [2022-02-10 00:55:40,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:55:40" (1/1) ... [2022-02-10 00:55:40,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:55:40" (1/1) ... [2022-02-10 00:55:40,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:55:40" (1/1) ... [2022-02-10 00:55:40,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:55:40" (1/1) ... [2022-02-10 00:55:40,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:55:40" (1/1) ... [2022-02-10 00:55:40,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 00:55:40,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 00:55:40,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 00:55:40,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 00:55:40,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:55:40" (1/1) ... [2022-02-10 00:55:40,565 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 00:55:40,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 00:55:40,587 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) [2022-02-10 00:55:40,605 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 [2022-02-10 00:55:40,616 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-10 00:55:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 00:55:40,617 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 00:55:40,617 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-10 00:55:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 00:55:40,617 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 00:55:40,617 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-10 00:55:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 00:55:40,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 00:55:40,617 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-10 00:55:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-10 00:55:40,617 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-10 00:55:40,617 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-10 00:55:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-10 00:55:40,617 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-10 00:55:40,618 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 00:55:40,653 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 00:55:40,655 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 00:55:40,766 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 00:55:40,783 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 00:55:40,783 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-10 00:55:40,785 INFO L202 PluginConnector]: Adding new model counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 12:55:40 BoogieIcfgContainer [2022-02-10 00:55:40,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 00:55:40,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 00:55:40,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 00:55:40,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 00:55:40,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:55:40" (1/2) ... [2022-02-10 00:55:40,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498afacb and model type counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 12:55:40, skipping insertion in model container [2022-02-10 00:55:40,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 12:55:40" (2/2) ... [2022-02-10 00:55:40,792 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-add-4-semi-Q67.wvr.bpl [2022-02-10 00:55:40,796 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 00:55:40,796 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 00:55:40,797 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 00:55:40,797 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 00:55:40,829 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-10 00:55:40,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-10 00:55:40,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 00:55:40,867 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) [2022-02-10 00:55:40,887 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 [2022-02-10 00:55:40,892 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 00:55:40,897 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 00:55:40,897 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-10 00:55:41,054 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 357 transitions and produced 317 states. [2022-02-10 00:55:41,057 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 00:55:41,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 00:55:41,063 INFO L85 PathProgramCache]: Analyzing trace with hash -340650427, now seen corresponding path program 1 times [2022-02-10 00:55:41,070 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 00:55:41,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545761139] [2022-02-10 00:55:41,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 00:55:41,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 00:55:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 00:55:41,655 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 32 proven. 253 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-02-10 00:55:41,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 00:55:41,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545761139] [2022-02-10 00:55:41,656 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545761139] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 00:55:41,656 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1034142889] [2022-02-10 00:55:41,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 00:55:41,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 00:55:41,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 00:55:41,659 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) [2022-02-10 00:55:41,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 00:55:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 00:55:41,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 14 conjunts are in the unsatisfiable core [2022-02-10 00:55:41,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 00:55:42,030 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 199 proven. 3 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-02-10 00:55:42,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 00:55:42,418 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 158 proven. 50 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-02-10 00:55:42,419 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1034142889] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 00:55:42,423 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 00:55:42,424 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 14] total 32 [2022-02-10 00:55:42,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494888128] [2022-02-10 00:55:42,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 00:55:42,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-02-10 00:55:42,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 00:55:42,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-02-10 00:55:42,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=856, Unknown=0, NotChecked=0, Total=1056 [2022-02-10 00:55:42,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:55:42,447 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 00:55:42,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.5454545454545454) internal successors, (117), 32 states have internal predecessors, (117), 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) [2022-02-10 00:55:42,448 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:55:43,594 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 424 transitions and produced 384 states. [2022-02-10 00:55:43,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-10 00:55:43,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-10 00:55:43,795 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 [2022-02-10 00:55:43,796 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 00:55:43,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 00:55:43,796 INFO L85 PathProgramCache]: Analyzing trace with hash -35000039, now seen corresponding path program 2 times [2022-02-10 00:55:43,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 00:55:43,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084834807] [2022-02-10 00:55:43,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 00:55:43,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 00:55:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 00:55:43,904 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 168 proven. 25 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-02-10 00:55:43,904 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 00:55:43,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084834807] [2022-02-10 00:55:43,904 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084834807] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 00:55:43,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707709047] [2022-02-10 00:55:43,905 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 00:55:43,905 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 00:55:43,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 00:55:43,906 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) [2022-02-10 00:55:43,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 00:55:43,954 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 00:55:43,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 00:55:43,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-10 00:55:43,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 00:55:44,055 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 168 proven. 25 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-02-10 00:55:44,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 00:55:44,177 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 168 proven. 25 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-02-10 00:55:44,177 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707709047] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 00:55:44,177 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 00:55:44,177 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 10 [2022-02-10 00:55:44,178 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798292865] [2022-02-10 00:55:44,178 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 00:55:44,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-10 00:55:44,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 00:55:44,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-10 00:55:44,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-02-10 00:55:44,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:55:44,179 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 00:55:44,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 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) [2022-02-10 00:55:44,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-02-10 00:55:44,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:55:44,566 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 568 transitions and produced 516 states. [2022-02-10 00:55:44,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 00:55:44,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 00:55:44,599 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-10 00:55:44,783 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 [2022-02-10 00:55:44,784 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 00:55:44,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 00:55:44,784 INFO L85 PathProgramCache]: Analyzing trace with hash 282547553, now seen corresponding path program 3 times [2022-02-10 00:55:44,785 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 00:55:44,785 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316799024] [2022-02-10 00:55:44,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 00:55:44,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 00:55:44,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 00:55:44,997 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 365 proven. 156 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-02-10 00:55:44,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 00:55:44,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316799024] [2022-02-10 00:55:44,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316799024] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 00:55:45,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038791495] [2022-02-10 00:55:45,000 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 00:55:45,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 00:55:45,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 00:55:45,009 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) [2022-02-10 00:55:45,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-10 00:55:45,079 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-02-10 00:55:45,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 00:55:45,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-10 00:55:45,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 00:55:45,366 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 16 proven. 259 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-02-10 00:55:45,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 00:55:45,620 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 88 proven. 187 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-02-10 00:55:45,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038791495] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 00:55:45,621 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 00:55:45,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 29 [2022-02-10 00:55:45,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766674891] [2022-02-10 00:55:45,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 00:55:45,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-10 00:55:45,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 00:55:45,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-10 00:55:45,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=702, Unknown=0, NotChecked=0, Total=870 [2022-02-10 00:55:45,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:55:45,622 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 00:55:45,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.2) internal successors, (126), 29 states have internal predecessors, (126), 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) [2022-02-10 00:55:45,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-10 00:55:45,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 00:55:45,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:55:46,105 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 654 transitions and produced 585 states. [2022-02-10 00:55:46,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 00:55:46,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 00:55:46,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 00:55:46,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-10 00:55:46,306 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 [2022-02-10 00:55:46,306 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 00:55:46,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 00:55:46,307 INFO L85 PathProgramCache]: Analyzing trace with hash -932455703, now seen corresponding path program 4 times [2022-02-10 00:55:46,307 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 00:55:46,307 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962367497] [2022-02-10 00:55:46,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 00:55:46,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 00:55:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 00:55:46,491 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 466 proven. 268 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-02-10 00:55:46,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 00:55:46,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962367497] [2022-02-10 00:55:46,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962367497] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 00:55:46,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895677873] [2022-02-10 00:55:46,492 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 00:55:46,492 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 00:55:46,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 00:55:46,508 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) [2022-02-10 00:55:46,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-10 00:55:46,568 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 00:55:46,568 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 00:55:46,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 22 conjunts are in the unsatisfiable core [2022-02-10 00:55:46,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 00:55:47,162 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 448 proven. 206 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2022-02-10 00:55:47,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 00:55:47,877 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 524 proven. 130 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2022-02-10 00:55:47,877 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895677873] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 00:55:47,877 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 00:55:47,877 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 22, 22] total 59 [2022-02-10 00:55:47,878 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983887073] [2022-02-10 00:55:47,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 00:55:47,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-02-10 00:55:47,878 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 00:55:47,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-02-10 00:55:47,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=854, Invalid=2686, Unknown=0, NotChecked=0, Total=3540 [2022-02-10 00:55:47,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:55:47,880 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 00:55:47,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 3.5) internal successors, (210), 59 states have internal predecessors, (210), 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) [2022-02-10 00:55:47,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-10 00:55:47,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 00:55:47,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-02-10 00:55:47,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:55:49,100 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1066 transitions and produced 857 states. [2022-02-10 00:55:49,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 00:55:49,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 00:55:49,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 00:55:49,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-10 00:55:49,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-10 00:55:49,307 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 [2022-02-10 00:55:49,308 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 00:55:49,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 00:55:49,308 INFO L85 PathProgramCache]: Analyzing trace with hash 506782255, now seen corresponding path program 5 times [2022-02-10 00:55:49,308 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 00:55:49,308 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18159953] [2022-02-10 00:55:49,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 00:55:49,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 00:55:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 00:55:49,865 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 196 proven. 925 refuted. 0 times theorem prover too weak. 1015 trivial. 0 not checked. [2022-02-10 00:55:49,866 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 00:55:49,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18159953] [2022-02-10 00:55:49,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18159953] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 00:55:49,866 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545444704] [2022-02-10 00:55:49,866 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 00:55:49,866 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 00:55:49,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 00:55:49,867 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) [2022-02-10 00:55:49,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-10 00:55:49,959 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 38 check-sat command(s) [2022-02-10 00:55:49,959 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 00:55:49,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 81 conjunts are in the unsatisfiable core [2022-02-10 00:55:49,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 00:55:50,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1404 proven. 256 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2022-02-10 00:55:50,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 00:55:51,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2136 backedges. 1404 proven. 256 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2022-02-10 00:55:51,195 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545444704] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 00:55:51,196 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 00:55:51,196 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26, 26] total 59 [2022-02-10 00:55:51,196 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032263245] [2022-02-10 00:55:51,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 00:55:51,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-02-10 00:55:51,196 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 00:55:51,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-02-10 00:55:51,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=722, Invalid=2700, Unknown=0, NotChecked=0, Total=3422 [2022-02-10 00:55:51,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:55:51,198 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 00:55:51,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 4.169491525423729) internal successors, (246), 59 states have internal predecessors, (246), 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) [2022-02-10 00:55:51,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-10 00:55:51,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 00:55:51,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-02-10 00:55:51,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-02-10 00:55:51,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:55:52,632 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1475 transitions and produced 1183 states. [2022-02-10 00:55:52,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 00:55:52,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 00:55:52,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 00:55:52,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-10 00:55:52,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 00:55:52,650 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-10 00:55:52,834 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 [2022-02-10 00:55:52,834 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 00:55:52,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 00:55:52,834 INFO L85 PathProgramCache]: Analyzing trace with hash 858203525, now seen corresponding path program 6 times [2022-02-10 00:55:52,834 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 00:55:52,835 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702354733] [2022-02-10 00:55:52,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 00:55:52,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 00:55:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 00:55:53,405 INFO L134 CoverageAnalysis]: Checked inductivity of 4157 backedges. 2637 proven. 912 refuted. 0 times theorem prover too weak. 608 trivial. 0 not checked. [2022-02-10 00:55:53,405 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 00:55:53,405 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702354733] [2022-02-10 00:55:53,405 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702354733] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 00:55:53,406 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197856222] [2022-02-10 00:55:53,406 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-10 00:55:53,406 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 00:55:53,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 00:55:53,407 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) [2022-02-10 00:55:53,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-10 00:55:53,536 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 38 check-sat command(s) [2022-02-10 00:55:53,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 00:55:53,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 39 conjunts are in the unsatisfiable core [2022-02-10 00:55:53,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 00:55:55,035 INFO L134 CoverageAnalysis]: Checked inductivity of 4157 backedges. 1026 proven. 2077 refuted. 0 times theorem prover too weak. 1054 trivial. 0 not checked. [2022-02-10 00:55:55,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 00:55:56,386 INFO L134 CoverageAnalysis]: Checked inductivity of 4157 backedges. 1026 proven. 2077 refuted. 0 times theorem prover too weak. 1054 trivial. 0 not checked. [2022-02-10 00:55:56,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197856222] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 00:55:56,387 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 00:55:56,387 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 37, 37] total 87 [2022-02-10 00:55:56,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906635246] [2022-02-10 00:55:56,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 00:55:56,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-02-10 00:55:56,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 00:55:56,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-02-10 00:55:56,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1300, Invalid=6356, Unknown=0, NotChecked=0, Total=7656 [2022-02-10 00:55:56,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:55:56,390 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 00:55:56,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 4.431818181818182) internal successors, (390), 87 states have internal predecessors, (390), 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) [2022-02-10 00:55:56,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-10 00:55:56,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 00:55:56,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-02-10 00:55:56,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-02-10 00:55:56,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-10 00:55:56,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:56:01,211 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1508 transitions and produced 1191 states. [2022-02-10 00:56:01,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 00:56:01,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 00:56:01,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 00:56:01,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-10 00:56:01,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 00:56:01,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-10 00:56:01,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-10 00:56:01,428 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 [2022-02-10 00:56:01,428 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 00:56:01,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 00:56:01,428 INFO L85 PathProgramCache]: Analyzing trace with hash 88724045, now seen corresponding path program 7 times [2022-02-10 00:56:01,428 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 00:56:01,428 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432273560] [2022-02-10 00:56:01,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 00:56:01,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 00:56:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 00:56:02,069 INFO L134 CoverageAnalysis]: Checked inductivity of 4481 backedges. 2616 proven. 1168 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2022-02-10 00:56:02,069 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 00:56:02,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432273560] [2022-02-10 00:56:02,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432273560] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 00:56:02,072 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715158014] [2022-02-10 00:56:02,072 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-10 00:56:02,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 00:56:02,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 00:56:02,080 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) [2022-02-10 00:56:02,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-10 00:56:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 00:56:02,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 55 conjunts are in the unsatisfiable core [2022-02-10 00:56:02,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 00:56:04,079 INFO L134 CoverageAnalysis]: Checked inductivity of 4481 backedges. 2376 proven. 1232 refuted. 0 times theorem prover too weak. 873 trivial. 0 not checked. [2022-02-10 00:56:04,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 00:56:06,156 INFO L134 CoverageAnalysis]: Checked inductivity of 4481 backedges. 2488 proven. 1120 refuted. 0 times theorem prover too weak. 873 trivial. 0 not checked. [2022-02-10 00:56:06,157 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715158014] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 00:56:06,157 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 00:56:06,157 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 55, 55] total 139 [2022-02-10 00:56:06,157 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633242655] [2022-02-10 00:56:06,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 00:56:06,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 140 states [2022-02-10 00:56:06,158 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 00:56:06,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 140 interpolants. [2022-02-10 00:56:06,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4087, Invalid=15373, Unknown=0, NotChecked=0, Total=19460 [2022-02-10 00:56:06,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:56:06,163 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 00:56:06,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 140 states, 140 states have (on average 3.2928571428571427) internal successors, (461), 139 states have internal predecessors, (461), 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) [2022-02-10 00:56:06,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-10 00:56:06,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 00:56:06,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-02-10 00:56:06,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-02-10 00:56:06,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-10 00:56:06,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-10 00:56:06,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:56:10,913 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1997 transitions and produced 1493 states. [2022-02-10 00:56:10,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 00:56:10,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 00:56:10,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 00:56:10,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-10 00:56:10,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 00:56:10,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-10 00:56:10,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-10 00:56:10,935 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-02-10 00:56:11,135 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 [2022-02-10 00:56:11,136 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 00:56:11,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 00:56:11,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1811615507, now seen corresponding path program 8 times [2022-02-10 00:56:11,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 00:56:11,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501330695] [2022-02-10 00:56:11,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 00:56:11,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 00:56:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 00:56:12,776 INFO L134 CoverageAnalysis]: Checked inductivity of 8082 backedges. 1024 proven. 3847 refuted. 0 times theorem prover too weak. 3211 trivial. 0 not checked. [2022-02-10 00:56:12,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 00:56:12,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501330695] [2022-02-10 00:56:12,777 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501330695] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 00:56:12,777 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525125826] [2022-02-10 00:56:12,777 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 00:56:12,777 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 00:56:12,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 00:56:12,778 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) [2022-02-10 00:56:12,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-10 00:56:12,914 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 00:56:12,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 00:56:12,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 980 conjuncts, 72 conjunts are in the unsatisfiable core [2022-02-10 00:56:12,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 00:56:16,030 INFO L134 CoverageAnalysis]: Checked inductivity of 8082 backedges. 4984 proven. 1156 refuted. 0 times theorem prover too weak. 1942 trivial. 0 not checked. [2022-02-10 00:56:16,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 00:56:17,984 INFO L134 CoverageAnalysis]: Checked inductivity of 8082 backedges. 4984 proven. 1156 refuted. 0 times theorem prover too weak. 1942 trivial. 0 not checked. [2022-02-10 00:56:17,984 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525125826] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 00:56:17,984 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 00:56:17,984 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 72, 72] total 166 [2022-02-10 00:56:17,985 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593868036] [2022-02-10 00:56:17,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 00:56:17,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 167 states [2022-02-10 00:56:17,985 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 00:56:17,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants. [2022-02-10 00:56:17,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4777, Invalid=22945, Unknown=0, NotChecked=0, Total=27722 [2022-02-10 00:56:17,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:56:17,992 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 00:56:17,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 167 states, 167 states have (on average 2.7365269461077846) internal successors, (457), 166 states have internal predecessors, (457), 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) [2022-02-10 00:56:17,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-10 00:56:17,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 00:56:17,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-02-10 00:56:17,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-02-10 00:56:17,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-10 00:56:17,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-10 00:56:17,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2022-02-10 00:56:17,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:56:25,764 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2349 transitions and produced 1798 states. [2022-02-10 00:56:25,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 00:56:25,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 00:56:25,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 00:56:25,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-10 00:56:25,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 00:56:25,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-10 00:56:25,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-10 00:56:25,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-02-10 00:56:25,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-10 00:56:25,981 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 [2022-02-10 00:56:25,982 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 00:56:25,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 00:56:25,982 INFO L85 PathProgramCache]: Analyzing trace with hash 471187867, now seen corresponding path program 9 times [2022-02-10 00:56:25,982 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 00:56:25,982 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446712302] [2022-02-10 00:56:25,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 00:56:25,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 00:56:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 00:56:26,944 INFO L134 CoverageAnalysis]: Checked inductivity of 11850 backedges. 7082 proven. 1693 refuted. 0 times theorem prover too weak. 3075 trivial. 0 not checked. [2022-02-10 00:56:26,945 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 00:56:26,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446712302] [2022-02-10 00:56:26,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446712302] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 00:56:26,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443117875] [2022-02-10 00:56:26,945 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 00:56:26,945 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 00:56:26,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 00:56:26,947 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) [2022-02-10 00:56:26,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-10 00:56:27,135 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 42 check-sat command(s) [2022-02-10 00:56:27,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 00:56:27,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 78 conjunts are in the unsatisfiable core [2022-02-10 00:56:27,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 00:56:29,741 INFO L134 CoverageAnalysis]: Checked inductivity of 11850 backedges. 1606 proven. 7033 refuted. 0 times theorem prover too weak. 3211 trivial. 0 not checked. [2022-02-10 00:56:29,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 00:56:32,265 INFO L134 CoverageAnalysis]: Checked inductivity of 11850 backedges. 1954 proven. 6685 refuted. 0 times theorem prover too weak. 3211 trivial. 0 not checked. [2022-02-10 00:56:32,266 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443117875] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 00:56:32,266 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 00:56:32,266 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 78, 78] total 167 [2022-02-10 00:56:32,266 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713690176] [2022-02-10 00:56:32,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 00:56:32,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 168 states [2022-02-10 00:56:32,267 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 00:56:32,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 168 interpolants. [2022-02-10 00:56:32,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5030, Invalid=23026, Unknown=0, NotChecked=0, Total=28056 [2022-02-10 00:56:32,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:56:32,271 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 00:56:32,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 168 states, 168 states have (on average 3.3392857142857144) internal successors, (561), 167 states have internal predecessors, (561), 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) [2022-02-10 00:56:32,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-10 00:56:32,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 00:56:32,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-02-10 00:56:32,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-02-10 00:56:32,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-10 00:56:32,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-10 00:56:32,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2022-02-10 00:56:32,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-02-10 00:56:32,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:56:38,207 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2454 transitions and produced 1840 states. [2022-02-10 00:56:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 00:56:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 00:56:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 00:56:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-10 00:56:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 00:56:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-10 00:56:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-10 00:56:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-02-10 00:56:38,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2022-02-10 00:56:38,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-10 00:56:38,419 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 [2022-02-10 00:56:38,420 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 00:56:38,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 00:56:38,420 INFO L85 PathProgramCache]: Analyzing trace with hash 682296609, now seen corresponding path program 10 times [2022-02-10 00:56:38,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 00:56:38,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142310297] [2022-02-10 00:56:38,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 00:56:38,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 00:56:38,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 00:56:39,504 INFO L134 CoverageAnalysis]: Checked inductivity of 13623 backedges. 8180 proven. 1681 refuted. 0 times theorem prover too weak. 3762 trivial. 0 not checked. [2022-02-10 00:56:39,504 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 00:56:39,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142310297] [2022-02-10 00:56:39,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142310297] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 00:56:39,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037047893] [2022-02-10 00:56:39,505 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 00:56:39,505 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 00:56:39,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 00:56:39,513 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) [2022-02-10 00:56:39,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-10 00:56:39,694 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 00:56:39,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 00:56:39,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 86 conjunts are in the unsatisfiable core [2022-02-10 00:56:39,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 00:56:43,461 INFO L134 CoverageAnalysis]: Checked inductivity of 13623 backedges. 7405 proven. 1681 refuted. 0 times theorem prover too weak. 4537 trivial. 0 not checked. [2022-02-10 00:56:43,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 00:56:46,039 INFO L134 CoverageAnalysis]: Checked inductivity of 13623 backedges. 7405 proven. 1681 refuted. 0 times theorem prover too weak. 4537 trivial. 0 not checked. [2022-02-10 00:56:46,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037047893] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 00:56:46,040 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 00:56:46,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 86, 86] total 172 [2022-02-10 00:56:46,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142068645] [2022-02-10 00:56:46,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 00:56:46,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 173 states [2022-02-10 00:56:46,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 00:56:46,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 173 interpolants. [2022-02-10 00:56:46,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6498, Invalid=23258, Unknown=0, NotChecked=0, Total=29756 [2022-02-10 00:56:46,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:56:46,044 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 00:56:46,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 173 states, 173 states have (on average 3.0809248554913293) internal successors, (533), 172 states have internal predecessors, (533), 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) [2022-02-10 00:56:46,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-10 00:56:46,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 00:56:46,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-02-10 00:56:46,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-02-10 00:56:46,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-10 00:56:46,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-10 00:56:46,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2022-02-10 00:56:46,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-02-10 00:56:46,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 162 states. [2022-02-10 00:56:46,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:56:51,028 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2598 transitions and produced 1966 states. [2022-02-10 00:56:51,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 00:56:51,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 00:56:51,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 00:56:51,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-10 00:56:51,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 00:56:51,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-10 00:56:51,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-10 00:56:51,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-02-10 00:56:51,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2022-02-10 00:56:51,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-02-10 00:56:51,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-02-10 00:56:51,252 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 [2022-02-10 00:56:51,253 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 00:56:51,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 00:56:51,254 INFO L85 PathProgramCache]: Analyzing trace with hash -683824791, now seen corresponding path program 11 times [2022-02-10 00:56:51,254 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 00:56:51,254 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456238311] [2022-02-10 00:56:51,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 00:56:51,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 00:56:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 00:56:52,296 INFO L134 CoverageAnalysis]: Checked inductivity of 14813 backedges. 8937 proven. 2316 refuted. 0 times theorem prover too weak. 3560 trivial. 0 not checked. [2022-02-10 00:56:52,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 00:56:52,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456238311] [2022-02-10 00:56:52,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456238311] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 00:56:52,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877462397] [2022-02-10 00:56:52,297 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 00:56:52,297 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 00:56:52,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 00:56:52,298 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) [2022-02-10 00:56:52,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-10 00:56:52,575 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 57 check-sat command(s) [2022-02-10 00:56:52,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 00:56:52,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 1332 conjuncts, 226 conjunts are in the unsatisfiable core [2022-02-10 00:56:52,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 00:56:54,286 INFO L134 CoverageAnalysis]: Checked inductivity of 14813 backedges. 10263 proven. 2316 refuted. 0 times theorem prover too weak. 2234 trivial. 0 not checked. [2022-02-10 00:56:54,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 00:56:57,430 INFO L134 CoverageAnalysis]: Checked inductivity of 14813 backedges. 10263 proven. 2316 refuted. 0 times theorem prover too weak. 2234 trivial. 0 not checked. [2022-02-10 00:56:57,431 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877462397] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 00:56:57,431 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 00:56:57,431 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 100, 100] total 154 [2022-02-10 00:56:57,431 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065243691] [2022-02-10 00:56:57,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 00:56:57,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 154 states [2022-02-10 00:56:57,432 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 00:56:57,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 154 interpolants. [2022-02-10 00:56:57,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11579, Invalid=11983, Unknown=0, NotChecked=0, Total=23562 [2022-02-10 00:56:57,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:56:57,435 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 00:56:57,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 154 states, 154 states have (on average 3.688311688311688) internal successors, (568), 154 states have internal predecessors, (568), 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) [2022-02-10 00:56:57,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-10 00:56:57,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 00:56:57,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-02-10 00:56:57,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-02-10 00:56:57,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-10 00:56:57,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-10 00:56:57,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2022-02-10 00:56:57,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-02-10 00:56:57,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 162 states. [2022-02-10 00:56:57,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2022-02-10 00:56:57,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:56:59,189 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3431 transitions and produced 2468 states. [2022-02-10 00:56:59,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 00:56:59,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 00:56:59,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 00:56:59,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-10 00:56:59,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 00:56:59,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-10 00:56:59,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-10 00:56:59,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-02-10 00:56:59,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2022-02-10 00:56:59,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-02-10 00:56:59,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-10 00:56:59,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-10 00:56:59,408 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 [2022-02-10 00:56:59,409 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 00:56:59,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 00:56:59,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1758921689, now seen corresponding path program 12 times [2022-02-10 00:56:59,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 00:56:59,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280212200] [2022-02-10 00:56:59,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 00:56:59,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 00:56:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 00:57:20,740 INFO L134 CoverageAnalysis]: Checked inductivity of 23325 backedges. 13812 proven. 9487 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-02-10 00:57:20,740 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 00:57:20,740 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280212200] [2022-02-10 00:57:20,740 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280212200] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 00:57:20,740 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997019078] [2022-02-10 00:57:20,740 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-10 00:57:20,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 00:57:20,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 00:57:20,742 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) [2022-02-10 00:57:20,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-10 00:57:21,122 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 105 check-sat command(s) [2022-02-10 00:57:21,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 00:57:21,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 1612 conjuncts, 86 conjunts are in the unsatisfiable core [2022-02-10 00:57:21,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 00:57:29,638 INFO L134 CoverageAnalysis]: Checked inductivity of 23325 backedges. 3490 proven. 8897 refuted. 0 times theorem prover too weak. 10938 trivial. 0 not checked. [2022-02-10 00:57:29,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 00:57:35,355 INFO L134 CoverageAnalysis]: Checked inductivity of 23325 backedges. 8151 proven. 4246 refuted. 0 times theorem prover too weak. 10928 trivial. 0 not checked. [2022-02-10 00:57:35,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997019078] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 00:57:35,355 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 00:57:35,356 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [265, 82, 84] total 391 [2022-02-10 00:57:35,356 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239457524] [2022-02-10 00:57:35,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 00:57:35,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 392 states [2022-02-10 00:57:35,357 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 00:57:35,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 392 interpolants. [2022-02-10 00:57:35,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17653, Invalid=135619, Unknown=0, NotChecked=0, Total=153272 [2022-02-10 00:57:35,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:57:35,366 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 00:57:35,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 392 states, 392 states have (on average 2.760204081632653) internal successors, (1082), 391 states have internal predecessors, (1082), 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) [2022-02-10 00:57:35,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-10 00:57:35,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 00:57:35,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-02-10 00:57:35,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-02-10 00:57:35,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-10 00:57:35,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-10 00:57:35,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2022-02-10 00:57:35,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-02-10 00:57:35,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 162 states. [2022-02-10 00:57:35,367 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2022-02-10 00:57:35,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-10 00:57:35,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 01:00:35,998 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4279 transitions and produced 3022 states. [2022-02-10 01:00:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 01:00:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 01:00:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 01:00:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-10 01:00:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 01:00:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-10 01:00:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-10 01:00:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-02-10 01:00:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2022-02-10 01:00:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-02-10 01:00:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-10 01:00:36,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1119 states. [2022-02-10 01:00:36,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-02-10 01:00:36,216 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 [2022-02-10 01:00:36,217 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 01:00:36,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:00:36,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1934393967, now seen corresponding path program 13 times [2022-02-10 01:00:36,217 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:00:36,217 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992692355] [2022-02-10 01:00:36,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:00:36,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:00:37,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 01:00:50,308 INFO L134 CoverageAnalysis]: Checked inductivity of 34497 backedges. 27007 proven. 5743 refuted. 0 times theorem prover too weak. 1747 trivial. 0 not checked. [2022-02-10 01:00:50,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 01:00:50,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992692355] [2022-02-10 01:00:50,309 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992692355] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 01:00:50,309 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134929331] [2022-02-10 01:00:50,309 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-10 01:00:50,309 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 01:00:50,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 01:00:50,312 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) [2022-02-10 01:00:50,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-02-10 01:00:50,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 01:00:50,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 1987 conjuncts, 218 conjunts are in the unsatisfiable core [2022-02-10 01:00:50,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 01:01:18,475 INFO L134 CoverageAnalysis]: Checked inductivity of 34497 backedges. 18958 proven. 11449 refuted. 0 times theorem prover too weak. 4090 trivial. 0 not checked. [2022-02-10 01:01:18,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 01:01:35,790 INFO L134 CoverageAnalysis]: Checked inductivity of 34497 backedges. 18958 proven. 11449 refuted. 0 times theorem prover too weak. 4090 trivial. 0 not checked. [2022-02-10 01:01:35,791 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134929331] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 01:01:35,791 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 01:01:35,791 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [199, 218, 218] total 524 [2022-02-10 01:01:35,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772544132] [2022-02-10 01:01:35,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 01:01:35,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 525 states [2022-02-10 01:01:35,793 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 01:01:35,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 525 interpolants. [2022-02-10 01:01:35,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43655, Invalid=231445, Unknown=0, NotChecked=0, Total=275100 [2022-02-10 01:01:35,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 01:01:35,823 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 01:01:35,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 525 states, 525 states have (on average 2.3390476190476193) internal successors, (1228), 524 states have internal predecessors, (1228), 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) [2022-02-10 01:01:35,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-10 01:01:35,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 01:01:35,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-02-10 01:01:35,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-02-10 01:01:35,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-10 01:01:35,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-10 01:01:35,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2022-02-10 01:01:35,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-02-10 01:01:35,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 162 states. [2022-02-10 01:01:35,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2022-02-10 01:01:35,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-10 01:01:35,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 1119 states. [2022-02-10 01:01:35,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 01:02:48,055 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3129 transitions and produced 2195 states. [2022-02-10 01:02:48,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 01:02:48,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 01:02:48,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 01:02:48,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-10 01:02:48,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 01:02:48,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-10 01:02:48,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-10 01:02:48,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-02-10 01:02:48,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2022-02-10 01:02:48,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-02-10 01:02:48,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-10 01:02:48,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1231 states. [2022-02-10 01:02:48,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 485 states. [2022-02-10 01:02:48,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-02-10 01:02:48,262 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 [2022-02-10 01:02:48,263 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 01:02:48,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:02:48,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1115258131, now seen corresponding path program 14 times [2022-02-10 01:02:48,263 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:02:48,264 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205068690] [2022-02-10 01:02:48,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:02:48,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:02:48,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 01:03:00,754 INFO L134 CoverageAnalysis]: Checked inductivity of 20357 backedges. 16238 proven. 2574 refuted. 0 times theorem prover too weak. 1545 trivial. 0 not checked. [2022-02-10 01:03:00,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 01:03:00,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205068690] [2022-02-10 01:03:00,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205068690] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 01:03:00,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294857591] [2022-02-10 01:03:00,755 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 01:03:00,756 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 01:03:00,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 01:03:00,757 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) [2022-02-10 01:03:00,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-02-10 01:03:00,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 01:03:00,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 01:03:00,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 1461 conjuncts, 163 conjunts are in the unsatisfiable core [2022-02-10 01:03:01,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 01:03:20,719 INFO L134 CoverageAnalysis]: Checked inductivity of 20357 backedges. 12769 proven. 2337 refuted. 0 times theorem prover too weak. 5251 trivial. 0 not checked. [2022-02-10 01:03:20,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 01:03:40,931 INFO L134 CoverageAnalysis]: Checked inductivity of 20357 backedges. 11670 proven. 3442 refuted. 0 times theorem prover too weak. 5245 trivial. 0 not checked. [2022-02-10 01:03:40,931 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294857591] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 01:03:40,932 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 01:03:40,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [215, 157, 163] total 533 [2022-02-10 01:03:40,933 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834771728] [2022-02-10 01:03:40,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 01:03:40,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 534 states [2022-02-10 01:03:40,940 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 01:03:40,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 534 interpolants. [2022-02-10 01:03:40,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42612, Invalid=242010, Unknown=0, NotChecked=0, Total=284622 [2022-02-10 01:03:40,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 01:03:40,962 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 01:03:40,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 534 states, 534 states have (on average 2.0805243445692883) internal successors, (1111), 533 states have internal predecessors, (1111), 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) [2022-02-10 01:03:40,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-10 01:03:40,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 01:03:40,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-02-10 01:03:40,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-02-10 01:03:40,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-10 01:03:40,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-10 01:03:40,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2022-02-10 01:03:40,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-02-10 01:03:40,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 162 states. [2022-02-10 01:03:40,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2022-02-10 01:03:40,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-10 01:03:40,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 1231 states. [2022-02-10 01:03:40,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 485 states. [2022-02-10 01:03:40,964 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 01:07:04,279 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5866 transitions and produced 4063 states. [2022-02-10 01:07:04,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-10 01:07:04,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 01:07:04,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-10 01:07:04,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-10 01:07:04,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-10 01:07:04,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-02-10 01:07:04,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-02-10 01:07:04,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2022-02-10 01:07:04,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2022-02-10 01:07:04,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-02-10 01:07:04,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-10 01:07:04,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1231 states. [2022-02-10 01:07:04,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 540 states. [2022-02-10 01:07:04,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 639 states. [2022-02-10 01:07:04,302 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-02-10 01:07:04,483 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 [2022-02-10 01:07:04,484 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 01:07:04,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:07:04,484 INFO L85 PathProgramCache]: Analyzing trace with hash 192136463, now seen corresponding path program 15 times [2022-02-10 01:07:04,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:07:04,484 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652916151] [2022-02-10 01:07:04,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:07:04,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:07:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 01:07:08,943 INFO L134 CoverageAnalysis]: Checked inductivity of 75218 backedges. 38304 proven. 12321 refuted. 0 times theorem prover too weak. 24593 trivial. 0 not checked. [2022-02-10 01:07:08,943 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 01:07:08,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652916151] [2022-02-10 01:07:08,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652916151] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 01:07:08,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988715369] [2022-02-10 01:07:08,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 01:07:08,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 01:07:08,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 01:07:08,945 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 01:07:08,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-02-10 01:07:09,343 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 86 check-sat command(s) [2022-02-10 01:07:09,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 01:07:09,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 1620 conjuncts, 88 conjunts are in the unsatisfiable core [2022-02-10 01:07:09,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 01:07:13,748 INFO L134 CoverageAnalysis]: Checked inductivity of 75218 backedges. 1764 proven. 8763 refuted. 0 times theorem prover too weak. 64691 trivial. 0 not checked. [2022-02-10 01:07:13,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 01:07:17,139 INFO L134 CoverageAnalysis]: Checked inductivity of 75218 backedges. 7629 proven. 2898 refuted. 0 times theorem prover too weak. 64691 trivial. 0 not checked. [2022-02-10 01:07:17,139 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988715369] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 01:07:17,140 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 01:07:17,140 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [115, 88, 88] total 245 [2022-02-10 01:07:17,141 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698153585] [2022-02-10 01:07:17,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 01:07:17,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 246 states [2022-02-10 01:07:17,142 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 01:07:17,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 246 interpolants. [2022-02-10 01:07:17,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10559, Invalid=49711, Unknown=0, NotChecked=0, Total=60270 [2022-02-10 01:07:17,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 01:07:17,149 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 01:07:17,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 246 states, 246 states have (on average 3.0813008130081303) internal successors, (758), 245 states have internal predecessors, (758), 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) [2022-02-10 01:07:17,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-10 01:07:17,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-10 01:07:17,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-02-10 01:07:17,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-02-10 01:07:17,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-10 01:07:17,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-02-10 01:07:17,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2022-02-10 01:07:17,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2022-02-10 01:07:17,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 162 states. [2022-02-10 01:07:17,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 131 states. [2022-02-10 01:07:17,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-02-10 01:07:17,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 1231 states. [2022-02-10 01:07:17,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 540 states. [2022-02-10 01:07:17,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 639 states. [2022-02-10 01:07:17,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.