/root/.sdkman/candidates/java/current/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking DFS --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 213 --traceabstraction.use.limited.checks.recommended.for.dfs true --traceabstraction.limit.for.limited.checks 10 -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.conditional-comm-3774817-m [2024-04-07 03:11:21,127 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-04-07 03:11:21,217 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../benchexec/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2024-04-07 03:11:21,222 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-04-07 03:11:21,223 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-04-07 03:11:21,252 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-04-07 03:11:21,253 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-04-07 03:11:21,253 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-04-07 03:11:21,254 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-04-07 03:11:21,258 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-04-07 03:11:21,258 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-04-07 03:11:21,258 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-04-07 03:11:21,259 INFO L153 SettingsManager]: * Use SBE=true [2024-04-07 03:11:21,260 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-04-07 03:11:21,261 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-04-07 03:11:21,261 INFO L153 SettingsManager]: * sizeof long=4 [2024-04-07 03:11:21,261 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-04-07 03:11:21,261 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-04-07 03:11:21,261 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-04-07 03:11:21,262 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-04-07 03:11:21,262 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-04-07 03:11:21,262 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-04-07 03:11:21,262 INFO L153 SettingsManager]: * sizeof long double=12 [2024-04-07 03:11:21,262 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-04-07 03:11:21,263 INFO L153 SettingsManager]: * Use constant arrays=true [2024-04-07 03:11:21,263 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-04-07 03:11:21,263 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-04-07 03:11:21,263 INFO L153 SettingsManager]: * To the following directory=./dump/ [2024-04-07 03:11:21,264 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-04-07 03:11:21,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-04-07 03:11:21,265 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-04-07 03:11:21,265 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-04-07 03:11:21,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-04-07 03:11:21,265 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-04-07 03:11:21,266 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2024-04-07 03:11:21,266 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-04-07 03:11:21,266 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-04-07 03:11:21,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-04-07 03:11:21,266 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-04-07 03:11:21,266 INFO L153 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> DFS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> RANDOM Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: probability for random criterion as percentage -> 20 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: seed for random criterion -> 213 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: use limited checks (recommended for DFS) -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Limit for limited checks -> 10 [2024-04-07 03:11:21,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-04-07 03:11:21,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-04-07 03:11:21,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-04-07 03:11:21,540 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2024-04-07 03:11:21,542 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2024-04-07 03:11:21,544 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-4.wvr.bpl [2024-04-07 03:11:21,544 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-4.wvr.bpl' [2024-04-07 03:11:21,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-04-07 03:11:21,567 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-04-07 03:11:21,567 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-04-07 03:11:21,568 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-04-07 03:11:21,568 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-04-07 03:11:21,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.04 03:11:21" (1/1) ... [2024-04-07 03:11:21,582 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.04 03:11:21" (1/1) ... [2024-04-07 03:11:21,590 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-04-07 03:11:21,592 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-04-07 03:11:21,596 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-04-07 03:11:21,596 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-04-07 03:11:21,597 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-04-07 03:11:21,620 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.04 03:11:21" (1/1) ... [2024-04-07 03:11:21,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.04 03:11:21" (1/1) ... [2024-04-07 03:11:21,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.04 03:11:21" (1/1) ... [2024-04-07 03:11:21,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.04 03:11:21" (1/1) ... [2024-04-07 03:11:21,630 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.04 03:11:21" (1/1) ... [2024-04-07 03:11:21,632 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.04 03:11:21" (1/1) ... [2024-04-07 03:11:21,632 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.04 03:11:21" (1/1) ... [2024-04-07 03:11:21,633 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.04 03:11:21" (1/1) ... [2024-04-07 03:11:21,644 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-04-07 03:11:21,645 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-04-07 03:11:21,645 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-04-07 03:11:21,645 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-04-07 03:11:21,660 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.04 03:11:21" (1/1) ... [2024-04-07 03:11:21,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-04-07 03:11:21,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-07 03:11:21,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-04-07 03:11:21,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-04-07 03:11:21,775 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2024-04-07 03:11:21,775 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-04-07 03:11:21,775 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-04-07 03:11:21,776 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2024-04-07 03:11:21,776 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-04-07 03:11:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-04-07 03:11:21,776 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2024-04-07 03:11:21,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-04-07 03:11:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-04-07 03:11:21,777 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-04-07 03:11:21,827 INFO L241 CfgBuilder]: Building ICFG [2024-04-07 03:11:21,829 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-04-07 03:11:21,972 INFO L282 CfgBuilder]: Performing block encoding [2024-04-07 03:11:22,035 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-04-07 03:11:22,035 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2024-04-07 03:11:22,037 INFO L201 PluginConnector]: Adding new model unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 03:11:22 BoogieIcfgContainer [2024-04-07 03:11:22,037 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-04-07 03:11:22,039 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-04-07 03:11:22,039 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-04-07 03:11:22,043 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-04-07 03:11:22,043 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.04 03:11:21" (1/2) ... [2024-04-07 03:11:22,044 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc21cdb and model type unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 03:11:22, skipping insertion in model container [2024-04-07 03:11:22,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 03:11:22" (2/2) ... [2024-04-07 03:11:22,045 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-cond-4.wvr.bpl [2024-04-07 03:11:22,053 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-04-07 03:11:22,062 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-04-07 03:11:22,062 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-04-07 03:11:22,062 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-04-07 03:11:22,104 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-04-07 03:11:22,144 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-04-07 03:11:22,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-04-07 03:11:22,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-07 03:11:22,147 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-04-07 03:11:22,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-04-07 03:11:22,189 INFO L184 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-04-07 03:11:22,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-07 03:11:22,202 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-04-07 03:11:22,208 INFO L357 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, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7c7f946, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=DFS, mConComCheckerCriterion=RANDOM, mConComCheckerLimitedChecksCriterion=true, mConComCheckerCriterionLimit=10, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=213 [2024-04-07 03:11:22,209 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-04-07 03:11:40,922 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-04-07 03:11:40,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-07 03:11:40,925 INFO L85 PathProgramCache]: Analyzing trace with hash 48291757, now seen corresponding path program 1 times [2024-04-07 03:11:40,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-07 03:11:40,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410306021] [2024-04-07 03:11:40,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-07 03:11:40,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-07 03:11:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-07 03:11:41,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:11:41,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-07 03:11:41,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410306021] [2024-04-07 03:11:41,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410306021] provided 1 perfect and 0 imperfect interpolant sequences [2024-04-07 03:11:41,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-04-07 03:11:41,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-04-07 03:11:41,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141663960] [2024-04-07 03:11:41,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-04-07 03:11:41,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-04-07 03:11:41,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-07 03:11:41,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-04-07 03:11:41,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-04-07 03:11:41,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:11:41,295 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-07 03:11:41,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-04-07 03:11:41,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:11:41,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:11:41,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-04-07 03:11:41,624 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-04-07 03:11:41,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-07 03:11:41,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1201185172, now seen corresponding path program 1 times [2024-04-07 03:11:41,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-07 03:11:41,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655498846] [2024-04-07 03:11:41,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-07 03:11:41,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-07 03:11:41,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-07 03:11:41,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:11:41,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-07 03:11:41,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655498846] [2024-04-07 03:11:41,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655498846] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-07 03:11:41,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612416326] [2024-04-07 03:11:41,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-07 03:11:41,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:11:41,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-07 03:11:41,859 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-07 03:11:41,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-04-07 03:11:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-07 03:11:41,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 16 conjunts are in the unsatisfiable core [2024-04-07 03:11:41,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-07 03:11:42,259 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-04-07 03:11:42,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 61 [2024-04-07 03:11:42,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:11:42,416 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-07 03:11:42,812 INFO L349 Elim1Store]: treesize reduction 5, result has 80.0 percent of original size [2024-04-07 03:11:42,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 9 treesize of output 27 [2024-04-07 03:11:42,876 INFO L349 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2024-04-07 03:11:42,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 11 treesize of output 55 [2024-04-07 03:11:42,927 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-04-07 03:11:42,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 7 treesize of output 7 [2024-04-07 03:11:42,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-04-07 03:11:42,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:11:42,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612416326] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-07 03:11:42,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-07 03:11:42,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-04-07 03:11:42,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436616277] [2024-04-07 03:11:42,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-07 03:11:42,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-04-07 03:11:42,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-07 03:11:42,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-04-07 03:11:42,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-04-07 03:11:42,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:11:42,947 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-07 03:11:42,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 9 states have internal predecessors, (21), 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) [2024-04-07 03:11:42,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:11:42,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:11:45,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:11:45,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:11:45,167 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-04-07 03:11:45,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-04-07 03:11:45,368 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-04-07 03:11:45,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-07 03:11:45,368 INFO L85 PathProgramCache]: Analyzing trace with hash -595114163, now seen corresponding path program 2 times [2024-04-07 03:11:45,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-07 03:11:45,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011945596] [2024-04-07 03:11:45,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-07 03:11:45,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-07 03:11:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-07 03:11:45,563 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:11:45,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-07 03:11:45,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011945596] [2024-04-07 03:11:45,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011945596] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-07 03:11:45,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078189503] [2024-04-07 03:11:45,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-04-07 03:11:45,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:11:45,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-07 03:11:45,566 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-07 03:11:45,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-04-07 03:11:45,604 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-04-07 03:11:45,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-07 03:11:45,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 20 conjunts are in the unsatisfiable core [2024-04-07 03:11:45,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-07 03:11:46,032 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-04-07 03:11:46,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 49 [2024-04-07 03:11:46,083 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:11:46,083 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-07 03:11:46,376 INFO L349 Elim1Store]: treesize reduction 10, result has 79.6 percent of original size [2024-04-07 03:11:46,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 11 treesize of output 50 [2024-04-07 03:11:46,470 INFO L349 Elim1Store]: treesize reduction 10, result has 87.7 percent of original size [2024-04-07 03:11:46,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 13 treesize of output 86 [2024-04-07 03:11:46,582 INFO L349 Elim1Store]: treesize reduction 5, result has 80.0 percent of original size [2024-04-07 03:11:46,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 9 treesize of output 27 [2024-04-07 03:11:46,598 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-04-07 03:11:46,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 7 treesize of output 16 [2024-04-07 03:11:46,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:11:46,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078189503] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-07 03:11:46,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-07 03:11:46,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-04-07 03:11:46,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451057862] [2024-04-07 03:11:46,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-07 03:11:46,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-04-07 03:11:46,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-07 03:11:46,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-04-07 03:11:46,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-04-07 03:11:46,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:11:46,609 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-07 03:11:46,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 11 states have internal predecessors, (23), 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) [2024-04-07 03:11:46,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:11:46,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:11:46,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:11:46,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:11:46,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:11:46,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:11:46,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-04-07 03:11:47,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:11:47,056 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-04-07 03:11:47,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-07 03:11:47,056 INFO L85 PathProgramCache]: Analyzing trace with hash -112626643, now seen corresponding path program 3 times [2024-04-07 03:11:47,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-07 03:11:47,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890698972] [2024-04-07 03:11:47,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-07 03:11:47,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-07 03:11:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-07 03:11:47,142 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:11:47,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-07 03:11:47,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890698972] [2024-04-07 03:11:47,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890698972] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-07 03:11:47,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222579586] [2024-04-07 03:11:47,143 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-04-07 03:11:47,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:11:47,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-07 03:11:47,144 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-07 03:11:47,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-04-07 03:11:47,202 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-04-07 03:11:47,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-07 03:11:47,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2024-04-07 03:11:47,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-07 03:11:47,222 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:11:47,223 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-07 03:11:47,257 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:11:47,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222579586] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-07 03:11:47,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-07 03:11:47,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2024-04-07 03:11:47,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517364431] [2024-04-07 03:11:47,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-07 03:11:47,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-04-07 03:11:47,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-07 03:11:47,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-04-07 03:11:47,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-04-07 03:11:47,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:11:47,259 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-07 03:11:47,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 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) [2024-04-07 03:11:47,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:11:47,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:11:47,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:11:47,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:11:47,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:11:47,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:11:47,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:11:47,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:11:47,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-04-07 03:11:47,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:11:47,617 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-04-07 03:11:47,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-07 03:11:47,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1352115952, now seen corresponding path program 1 times [2024-04-07 03:11:47,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-07 03:11:47,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746669811] [2024-04-07 03:11:47,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-07 03:11:47,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-07 03:11:47,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-07 03:11:47,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:11:47,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-07 03:11:47,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746669811] [2024-04-07 03:11:47,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746669811] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-07 03:11:47,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990935732] [2024-04-07 03:11:47,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-07 03:11:47,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:11:47,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-07 03:11:47,679 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-07 03:11:47,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-04-07 03:11:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-07 03:11:47,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2024-04-07 03:11:47,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-07 03:11:47,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:11:47,724 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-07 03:11:47,745 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:11:47,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990935732] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-07 03:11:47,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-07 03:11:47,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-04-07 03:11:47,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476360273] [2024-04-07 03:11:47,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-07 03:11:47,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-04-07 03:11:47,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-07 03:11:47,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-04-07 03:11:47,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-04-07 03:11:47,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:11:47,755 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-07 03:11:47,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 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) [2024-04-07 03:11:47,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:11:47,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:11:47,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:11:47,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:11:47,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:12:09,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:12:09,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:12:09,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:12:09,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:09,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:09,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-04-07 03:12:09,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:12:09,544 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-04-07 03:12:09,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-07 03:12:09,545 INFO L85 PathProgramCache]: Analyzing trace with hash -2062158864, now seen corresponding path program 2 times [2024-04-07 03:12:09,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-07 03:12:09,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193891244] [2024-04-07 03:12:09,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-07 03:12:09,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-07 03:12:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-07 03:12:09,617 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:12:09,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-07 03:12:09,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193891244] [2024-04-07 03:12:09,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193891244] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-07 03:12:09,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958903285] [2024-04-07 03:12:09,618 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-04-07 03:12:09,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:12:09,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-07 03:12:09,623 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-07 03:12:09,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-04-07 03:12:09,666 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-04-07 03:12:09,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-07 03:12:09,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2024-04-07 03:12:09,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-07 03:12:09,685 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:12:09,685 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-07 03:12:09,712 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:12:09,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958903285] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-07 03:12:09,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-07 03:12:09,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 7 [2024-04-07 03:12:09,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037544884] [2024-04-07 03:12:09,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-07 03:12:09,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-04-07 03:12:09,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-07 03:12:09,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-04-07 03:12:09,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-04-07 03:12:09,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:12:09,714 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-07 03:12:09,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 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) [2024-04-07 03:12:09,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:12:09,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:12:09,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:12:09,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:09,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:09,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:12:11,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:12:11,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:12:11,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:12:11,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:11,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:11,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:11,132 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-04-07 03:12:11,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:12:11,332 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-04-07 03:12:11,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-07 03:12:11,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1320435825, now seen corresponding path program 3 times [2024-04-07 03:12:11,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-07 03:12:11,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609278470] [2024-04-07 03:12:11,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-07 03:12:11,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-07 03:12:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-07 03:12:11,526 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:12:11,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-07 03:12:11,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609278470] [2024-04-07 03:12:11,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609278470] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-07 03:12:11,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62411630] [2024-04-07 03:12:11,527 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-04-07 03:12:11,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:12:11,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-07 03:12:11,528 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-07 03:12:11,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-04-07 03:12:11,557 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-04-07 03:12:11,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-07 03:12:11,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 26 conjunts are in the unsatisfiable core [2024-04-07 03:12:11,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-07 03:12:11,890 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-04-07 03:12:11,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 81 treesize of output 215 [2024-04-07 03:12:12,861 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:12:12,861 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-07 03:12:13,337 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-04-07 03:12:13,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 16 new quantified variables, introduced 36 case distinctions, treesize of input 47 treesize of output 330 [2024-04-07 03:12:15,242 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:12:15,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62411630] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-07 03:12:15,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-07 03:12:15,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-04-07 03:12:15,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750669171] [2024-04-07 03:12:15,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-07 03:12:15,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-04-07 03:12:15,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-07 03:12:15,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-04-07 03:12:15,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2024-04-07 03:12:15,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:12:15,247 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-07 03:12:15,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.619047619047619) internal successors, (34), 20 states have internal predecessors, (34), 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) [2024-04-07 03:12:15,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:12:15,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:12:15,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:12:15,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:15,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:15,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:15,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:12:21,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:12:21,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:12:21,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:12:21,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:21,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:21,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:21,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-04-07 03:12:21,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-04-07 03:12:21,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-04-07 03:12:21,719 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-04-07 03:12:21,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-07 03:12:21,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1193311216, now seen corresponding path program 4 times [2024-04-07 03:12:21,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-07 03:12:21,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372193486] [2024-04-07 03:12:21,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-07 03:12:21,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-07 03:12:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-07 03:12:21,966 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:12:21,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-07 03:12:21,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372193486] [2024-04-07 03:12:21,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372193486] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-07 03:12:21,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111098495] [2024-04-07 03:12:21,967 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-04-07 03:12:21,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:12:21,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-07 03:12:21,968 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-07 03:12:21,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-04-07 03:12:22,000 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-04-07 03:12:22,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-07 03:12:22,001 WARN L260 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 36 conjunts are in the unsatisfiable core [2024-04-07 03:12:22,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-07 03:12:22,749 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-04-07 03:12:22,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 72 treesize of output 212 [2024-04-07 03:12:24,398 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:12:24,399 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-07 03:12:25,277 INFO L349 Elim1Store]: treesize reduction 25, result has 94.3 percent of original size [2024-04-07 03:12:25,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 20 new quantified variables, introduced 55 case distinctions, treesize of input 25 treesize of output 455 [2024-04-07 03:12:29,437 INFO L349 Elim1Store]: treesize reduction 25, result has 95.3 percent of original size [2024-04-07 03:12:29,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 22 new quantified variables, introduced 66 case distinctions, treesize of input 27 treesize of output 547 [2024-04-07 03:12:35,168 INFO L349 Elim1Store]: treesize reduction 20, result has 93.1 percent of original size [2024-04-07 03:12:35,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 16 new quantified variables, introduced 36 case distinctions, treesize of input 21 treesize of output 300 [2024-04-07 03:12:36,664 INFO L349 Elim1Store]: treesize reduction 25, result has 93.1 percent of original size [2024-04-07 03:12:36,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 18 new quantified variables, introduced 45 case distinctions, treesize of input 23 treesize of output 371 [2024-04-07 03:12:38,897 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:12:38,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111098495] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-07 03:12:38,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-07 03:12:38,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2024-04-07 03:12:38,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453275882] [2024-04-07 03:12:38,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-07 03:12:38,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-04-07 03:12:38,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-07 03:12:38,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-04-07 03:12:38,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2024-04-07 03:12:38,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:12:38,899 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-07 03:12:38,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.5) internal successors, (33), 21 states have internal predecessors, (33), 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) [2024-04-07 03:12:38,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:12:38,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:12:38,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:12:38,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:38,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:38,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:38,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-04-07 03:12:38,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:12:39,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:12:39,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:12:39,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:12:39,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:39,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:39,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:39,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-04-07 03:12:39,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-04-07 03:12:39,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-04-07 03:12:40,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:12:40,094 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-04-07 03:12:40,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-07 03:12:40,094 INFO L85 PathProgramCache]: Analyzing trace with hash 557297713, now seen corresponding path program 5 times [2024-04-07 03:12:40,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-07 03:12:40,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092655773] [2024-04-07 03:12:40,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-07 03:12:40,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-07 03:12:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-07 03:12:40,200 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 23 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:12:40,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-07 03:12:40,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092655773] [2024-04-07 03:12:40,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092655773] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-07 03:12:40,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898674053] [2024-04-07 03:12:40,200 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-04-07 03:12:40,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:12:40,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-07 03:12:40,204 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-07 03:12:40,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-04-07 03:12:40,252 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2024-04-07 03:12:40,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-07 03:12:40,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2024-04-07 03:12:40,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-07 03:12:40,275 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 23 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:12:40,275 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-07 03:12:40,328 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 23 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:12:40,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898674053] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-07 03:12:40,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-07 03:12:40,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 12 [2024-04-07 03:12:40,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116303118] [2024-04-07 03:12:40,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-07 03:12:40,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-04-07 03:12:40,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-07 03:12:40,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-04-07 03:12:40,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-04-07 03:12:40,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:12:40,330 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-07 03:12:40,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 12 states have internal predecessors, (24), 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) [2024-04-07 03:12:40,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:12:40,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:12:40,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:12:40,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:40,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:40,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:40,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2024-04-07 03:12:40,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-04-07 03:12:40,331 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:12:40,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:12:40,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:12:40,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:12:40,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:40,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:40,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:40,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-04-07 03:12:40,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-04-07 03:12:40,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-04-07 03:12:40,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-04-07 03:12:40,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:12:40,793 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-04-07 03:12:40,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-07 03:12:40,793 INFO L85 PathProgramCache]: Analyzing trace with hash -2116014866, now seen corresponding path program 6 times [2024-04-07 03:12:40,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-07 03:12:40,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989909732] [2024-04-07 03:12:40,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-07 03:12:40,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-07 03:12:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-07 03:12:40,859 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:12:40,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-07 03:12:40,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989909732] [2024-04-07 03:12:40,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989909732] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-07 03:12:40,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821811923] [2024-04-07 03:12:40,860 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-04-07 03:12:40,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:12:40,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-07 03:12:40,861 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-07 03:12:40,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-04-07 03:12:40,893 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-04-07 03:12:40,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-07 03:12:40,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 9 conjunts are in the unsatisfiable core [2024-04-07 03:12:40,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-07 03:12:40,918 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:12:40,919 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-07 03:12:40,981 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:12:40,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821811923] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-07 03:12:40,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-07 03:12:40,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2024-04-07 03:12:40,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477317037] [2024-04-07 03:12:40,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-07 03:12:40,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-04-07 03:12:40,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-07 03:12:40,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-04-07 03:12:40,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-04-07 03:12:40,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:12:40,983 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-07 03:12:40,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.125) internal successors, (34), 15 states have internal predecessors, (34), 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) [2024-04-07 03:12:40,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:12:40,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:12:40,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:12:40,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:40,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:40,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:40,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-04-07 03:12:40,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-04-07 03:12:40,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-04-07 03:12:40,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:12:41,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:12:41,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:12:41,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:12:41,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:41,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:41,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:12:41,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-04-07 03:12:41,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-04-07 03:12:41,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-04-07 03:12:41,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-04-07 03:12:41,173 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-04-07 03:12:41,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-04-07 03:12:41,367 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-04-07 03:12:41,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-07 03:12:41,368 INFO L85 PathProgramCache]: Analyzing trace with hash 83554963, now seen corresponding path program 7 times [2024-04-07 03:12:41,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-07 03:12:41,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135141604] [2024-04-07 03:12:41,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-07 03:12:41,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-07 03:12:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-07 03:12:41,631 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:12:41,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-07 03:12:41,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135141604] [2024-04-07 03:12:41,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135141604] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-07 03:12:41,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079837515] [2024-04-07 03:12:41,632 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-04-07 03:12:41,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:12:41,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-07 03:12:41,633 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-07 03:12:41,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-04-07 03:12:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-07 03:12:41,661 WARN L260 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 41 conjunts are in the unsatisfiable core [2024-04-07 03:12:41,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-07 03:12:42,834 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-04-07 03:12:42,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 21 new quantified variables, introduced 55 case distinctions, treesize of input 121 treesize of output 499 [2024-04-07 03:12:50,614 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:12:50,614 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-07 03:12:51,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-04-07 03:12:51,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 0 disjoint index pairs (out of 136 index pairs), introduced 32 new quantified variables, introduced 136 case distinctions, treesize of input 79 treesize of output 1162 [2024-04-07 03:13:45,493 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:13:45,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079837515] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-07 03:13:45,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-07 03:13:45,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 32 [2024-04-07 03:13:45,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37145190] [2024-04-07 03:13:45,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-07 03:13:45,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-04-07 03:13:45,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-07 03:13:45,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-04-07 03:13:45,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=954, Unknown=0, NotChecked=0, Total=1056 [2024-04-07 03:13:45,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:13:45,496 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-07 03:13:45,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 1.393939393939394) internal successors, (46), 32 states have internal predecessors, (46), 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) [2024-04-07 03:13:45,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:13:45,496 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:13:45,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:13:45,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:13:45,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:13:45,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:13:45,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-04-07 03:13:45,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-04-07 03:13:45,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-04-07 03:13:45,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-04-07 03:13:45,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:13:46,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:13:46,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:13:46,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:13:46,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:13:46,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:13:46,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:13:46,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-04-07 03:13:46,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-04-07 03:13:46,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-04-07 03:13:46,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-04-07 03:13:46,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-04-07 03:13:46,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-04-07 03:13:47,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:13:47,145 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-04-07 03:13:47,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-07 03:13:47,145 INFO L85 PathProgramCache]: Analyzing trace with hash -881912274, now seen corresponding path program 8 times [2024-04-07 03:13:47,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-07 03:13:47,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870252389] [2024-04-07 03:13:47,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-07 03:13:47,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-07 03:13:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-07 03:13:47,554 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:13:47,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-07 03:13:47,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870252389] [2024-04-07 03:13:47,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870252389] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-07 03:13:47,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028409118] [2024-04-07 03:13:47,555 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-04-07 03:13:47,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:13:47,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-07 03:13:47,556 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-07 03:13:47,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-04-07 03:13:47,606 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-04-07 03:13:47,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-07 03:13:47,607 WARN L260 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 56 conjunts are in the unsatisfiable core [2024-04-07 03:13:47,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-07 03:13:48,460 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-04-07 03:13:48,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 21 new quantified variables, introduced 55 case distinctions, treesize of input 104 treesize of output 496 [2024-04-07 03:13:57,118 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:13:57,118 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-07 03:14:01,338 INFO L349 Elim1Store]: treesize reduction 45, result has 97.0 percent of original size [2024-04-07 03:14:01,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 0 disjoint index pairs (out of 190 index pairs), introduced 38 new quantified variables, introduced 190 case distinctions, treesize of input 43 treesize of output 1551 [2024-04-07 03:15:52,735 INFO L349 Elim1Store]: treesize reduction 45, result has 96.7 percent of original size [2024-04-07 03:15:52,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 19 select indices, 19 select index equivalence classes, 0 disjoint index pairs (out of 171 index pairs), introduced 36 new quantified variables, introduced 171 case distinctions, treesize of input 41 treesize of output 1395 [2024-04-07 03:17:15,961 INFO L349 Elim1Store]: treesize reduction 45, result has 96.3 percent of original size [2024-04-07 03:17:15,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 34 new quantified variables, introduced 153 case distinctions, treesize of input 39 treesize of output 1247 [2024-04-07 03:18:12,394 INFO L349 Elim1Store]: treesize reduction 40, result has 96.3 percent of original size [2024-04-07 03:18:12,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 0 disjoint index pairs (out of 136 index pairs), introduced 32 new quantified variables, introduced 136 case distinctions, treesize of input 37 treesize of output 1112 [2024-04-07 03:18:55,392 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:18:55,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028409118] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-07 03:18:55,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-07 03:18:55,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 33 [2024-04-07 03:18:55,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594516683] [2024-04-07 03:18:55,393 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-07 03:18:55,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-04-07 03:18:55,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-07 03:18:55,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-04-07 03:18:55,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=995, Unknown=0, NotChecked=0, Total=1122 [2024-04-07 03:18:55,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:18:55,395 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-07 03:18:55,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 33 states have internal predecessors, (45), 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) [2024-04-07 03:18:55,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:18:55,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:18:55,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:18:55,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:18:55,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:18:55,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:18:55,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-04-07 03:18:55,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-04-07 03:18:55,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-04-07 03:18:55,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-04-07 03:18:55,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-04-07 03:18:55,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:18:57,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:18:57,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:18:57,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:18:57,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:18:57,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:18:57,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:18:57,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-04-07 03:18:57,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-04-07 03:18:57,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-04-07 03:18:57,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-04-07 03:18:57,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-04-07 03:18:57,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-04-07 03:18:57,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-04-07 03:18:58,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-04-07 03:18:58,093 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-04-07 03:18:58,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-07 03:18:58,094 INFO L85 PathProgramCache]: Analyzing trace with hash 313819475, now seen corresponding path program 9 times [2024-04-07 03:18:58,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-07 03:18:58,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893362431] [2024-04-07 03:18:58,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-07 03:18:58,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-07 03:18:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-07 03:18:58,265 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 48 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:18:58,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-07 03:18:58,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893362431] [2024-04-07 03:18:58,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893362431] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-07 03:18:58,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717472238] [2024-04-07 03:18:58,266 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-04-07 03:18:58,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:18:58,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-07 03:18:58,267 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-07 03:18:58,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-04-07 03:18:58,324 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-04-07 03:18:58,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-07 03:18:58,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 16 conjunts are in the unsatisfiable core [2024-04-07 03:18:58,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-07 03:18:58,360 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 48 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:18:58,360 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-07 03:18:58,478 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 48 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:18:58,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717472238] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-07 03:18:58,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-07 03:18:58,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 17 [2024-04-07 03:18:58,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968116691] [2024-04-07 03:18:58,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-07 03:18:58,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-04-07 03:18:58,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-07 03:18:58,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-04-07 03:18:58,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2024-04-07 03:18:58,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:18:58,480 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-07 03:18:58,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 17 states have internal predecessors, (29), 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) [2024-04-07 03:18:58,480 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:18:58,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:18:58,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:18:58,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:18:58,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:18:58,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:18:58,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-04-07 03:18:58,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-04-07 03:18:58,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-04-07 03:18:58,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-04-07 03:18:58,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2024-04-07 03:18:58,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-04-07 03:18:58,481 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:18:58,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:18:58,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:18:58,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:18:58,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:18:58,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:18:58,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:18:58,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-04-07 03:18:58,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-04-07 03:18:58,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-04-07 03:18:58,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-04-07 03:18:58,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-04-07 03:18:58,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-04-07 03:18:58,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-04-07 03:18:58,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-04-07 03:18:59,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-04-07 03:18:59,088 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-04-07 03:18:59,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-07 03:18:59,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1582281674, now seen corresponding path program 10 times [2024-04-07 03:18:59,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-07 03:18:59,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848410092] [2024-04-07 03:18:59,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-07 03:18:59,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-07 03:18:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-07 03:18:59,233 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 4 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:18:59,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-07 03:18:59,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848410092] [2024-04-07 03:18:59,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848410092] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-07 03:18:59,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231616427] [2024-04-07 03:18:59,233 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-04-07 03:18:59,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:18:59,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-07 03:18:59,235 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-07 03:18:59,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-04-07 03:18:59,269 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-04-07 03:18:59,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-07 03:18:59,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 14 conjunts are in the unsatisfiable core [2024-04-07 03:18:59,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-07 03:18:59,310 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:18:59,310 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-07 03:18:59,444 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:18:59,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231616427] provided 0 perfect and 2 imperfect interpolant sequences [2024-04-07 03:18:59,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-04-07 03:18:59,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 21 [2024-04-07 03:18:59,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821616591] [2024-04-07 03:18:59,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-04-07 03:18:59,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-04-07 03:18:59,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-04-07 03:18:59,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-04-07 03:18:59,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462 [2024-04-07 03:18:59,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:18:59,446 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-04-07 03:18:59,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 21 states have internal predecessors, (41), 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) [2024-04-07 03:18:59,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:18:59,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:18:59,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:18:59,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:18:59,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:18:59,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:18:59,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2024-04-07 03:18:59,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2024-04-07 03:18:59,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-04-07 03:18:59,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2024-04-07 03:18:59,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2024-04-07 03:18:59,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2024-04-07 03:18:59,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2024-04-07 03:18:59,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-04-07 03:18:59,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-04-07 03:18:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-04-07 03:18:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-04-07 03:18:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:18:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:18:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-04-07 03:18:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-04-07 03:18:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-04-07 03:18:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-04-07 03:18:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-04-07 03:18:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-04-07 03:18:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-04-07 03:18:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-04-07 03:18:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-04-07 03:18:59,722 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-04-07 03:18:59,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-04-07 03:18:59,915 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-04-07 03:18:59,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-04-07 03:18:59,915 INFO L85 PathProgramCache]: Analyzing trace with hash 560148043, now seen corresponding path program 11 times [2024-04-07 03:18:59,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-04-07 03:18:59,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479857895] [2024-04-07 03:18:59,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-04-07 03:18:59,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-04-07 03:18:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-04-07 03:19:00,418 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:19:00,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-04-07 03:19:00,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479857895] [2024-04-07 03:19:00,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479857895] provided 0 perfect and 1 imperfect interpolant sequences [2024-04-07 03:19:00,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794925540] [2024-04-07 03:19:00,419 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-04-07 03:19:00,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:19:00,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-04-07 03:19:00,420 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-04-07 03:19:00,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-04-07 03:19:00,468 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-04-07 03:19:00,468 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-04-07 03:19:00,469 WARN L260 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 56 conjunts are in the unsatisfiable core [2024-04-07 03:19:00,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-04-07 03:19:01,886 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-04-07 03:19:01,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 29 new quantified variables, introduced 105 case distinctions, treesize of input 161 treesize of output 911 [2024-04-07 03:19:35,391 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-04-07 03:19:35,391 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-04-07 03:19:40,378 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-04-07 03:19:40,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 25 select indices, 25 select index equivalence classes, 0 disjoint index pairs (out of 300 index pairs), introduced 48 new quantified variables, introduced 300 case distinctions, treesize of input 111 treesize of output 2506 [2024-04-07 03:23:39,002 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-04-07 03:23:39,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2024-04-07 03:23:39,004 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-04-07 03:23:39,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-04-07 03:23:39,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-04-07 03:23:39,205 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.assertTerm(Scriptor.java:147) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.assertTerm(DiffWrapperScript.java:111) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.assertTerm(WrapperScript.java:158) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:495) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:252) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:324) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:731) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:338) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:341) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:110) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 60 more [2024-04-07 03:23:39,210 INFO L158 Benchmark]: Toolchain (without parser) took 737643.02ms. Allocated memory was 163.6MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 91.0MB in the beginning and 623.0MB in the end (delta: -532.0MB). Peak memory consumption was 915.6MB. Max. memory is 8.0GB. [2024-04-07 03:23:39,210 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.16ms. Allocated memory is still 163.6MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 8.0GB. [2024-04-07 03:23:39,211 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.72ms. Allocated memory is still 163.6MB. Free memory was 91.0MB in the beginning and 89.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-04-07 03:23:39,211 INFO L158 Benchmark]: Boogie Preprocessor took 47.95ms. Allocated memory was 163.6MB in the beginning and 297.8MB in the end (delta: 134.2MB). Free memory was 89.5MB in the beginning and 269.0MB in the end (delta: -179.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2024-04-07 03:23:39,211 INFO L158 Benchmark]: RCFGBuilder took 391.83ms. Allocated memory is still 297.8MB. Free memory was 269.0MB in the beginning and 257.7MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-04-07 03:23:39,212 INFO L158 Benchmark]: TraceAbstraction took 737169.91ms. Allocated memory was 297.8MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 256.1MB in the beginning and 623.0MB in the end (delta: -366.9MB). Peak memory consumption was 946.8MB. Max. memory is 8.0GB. [2024-04-07 03:23:39,213 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.16ms. Allocated memory is still 163.6MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.72ms. Allocated memory is still 163.6MB. Free memory was 91.0MB in the beginning and 89.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 47.95ms. Allocated memory was 163.6MB in the beginning and 297.8MB in the end (delta: 134.2MB). Free memory was 89.5MB in the beginning and 269.0MB in the end (delta: -179.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * RCFGBuilder took 391.83ms. Allocated memory is still 297.8MB. Free memory was 269.0MB in the beginning and 257.7MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 737169.91ms. Allocated memory was 297.8MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 256.1MB in the beginning and 623.0MB in the end (delta: -366.9MB). Peak memory consumption was 946.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-04-07 03:23:39,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 Received shutdown request...