/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-dist.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-29 07:04:05,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-29 07:04:05,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-29 07:04:05,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-29 07:04:05,964 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks.epf [2022-01-29 07:04:05,988 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-29 07:04:05,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-29 07:04:05,989 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-29 07:04:05,989 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-29 07:04:05,990 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-29 07:04:05,990 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-29 07:04:05,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-29 07:04:05,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-29 07:04:05,990 INFO L138 SettingsManager]: * Use SBE=true [2022-01-29 07:04:05,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-29 07:04:05,991 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-29 07:04:05,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-29 07:04:05,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-29 07:04:05,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-29 07:04:05,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-29 07:04:05,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-29 07:04:05,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-29 07:04:05,992 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-29 07:04:05,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-29 07:04:05,992 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-29 07:04:05,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-29 07:04:05,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-29 07:04:05,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-29 07:04:05,992 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-29 07:04:05,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-29 07:04:05,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 07:04:05,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-29 07:04:05,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-29 07:04:05,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-29 07:04:05,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-29 07:04:05,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-29 07:04:05,994 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-29 07:04:05,994 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-01-29 07:04:05,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-29 07:04:05,994 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-01-29 07:04:05,994 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-29 07:04:06,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-29 07:04:06,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-29 07:04:06,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-29 07:04:06,192 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-29 07:04:06,194 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-29 07:04:06,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-dist.wvr.bpl [2022-01-29 07:04:06,195 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-dist.wvr.bpl' [2022-01-29 07:04:06,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-29 07:04:06,216 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-29 07:04:06,217 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-29 07:04:06,217 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-29 07:04:06,217 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-29 07:04:06,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/1) ... [2022-01-29 07:04:06,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/1) ... [2022-01-29 07:04:06,245 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-29 07:04:06,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-29 07:04:06,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-29 07:04:06,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-29 07:04:06,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-29 07:04:06,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/1) ... [2022-01-29 07:04:06,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/1) ... [2022-01-29 07:04:06,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/1) ... [2022-01-29 07:04:06,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/1) ... [2022-01-29 07:04:06,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/1) ... [2022-01-29 07:04:06,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/1) ... [2022-01-29 07:04:06,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/1) ... [2022-01-29 07:04:06,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-29 07:04:06,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-29 07:04:06,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-29 07:04:06,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-29 07:04:06,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/1) ... [2022-01-29 07:04:06,274 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 07:04:06,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:04:06,306 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-29 07:04:06,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-29 07:04:06,334 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-01-29 07:04:06,334 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-29 07:04:06,334 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-29 07:04:06,334 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-01-29 07:04:06,334 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-29 07:04:06,334 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-29 07:04:06,335 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-01-29 07:04:06,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-29 07:04:06,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-29 07:04:06,335 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-01-29 07:04:06,335 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-29 07:04:06,335 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-29 07:04:06,336 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-29 07:04:06,371 INFO L234 CfgBuilder]: Building ICFG [2022-01-29 07:04:06,372 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-29 07:04:06,434 INFO L275 CfgBuilder]: Performing block encoding [2022-01-29 07:04:06,443 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-29 07:04:06,443 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-29 07:04:06,445 INFO L202 PluginConnector]: Adding new model mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 07:04:06 BoogieIcfgContainer [2022-01-29 07:04:06,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-29 07:04:06,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-29 07:04:06,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-29 07:04:06,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-29 07:04:06,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/2) ... [2022-01-29 07:04:06,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c080344 and model type mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 07:04:06, skipping insertion in model container [2022-01-29 07:04:06,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 07:04:06" (2/2) ... [2022-01-29 07:04:06,463 INFO L111 eAbstractionObserver]: Analyzing ICFG mult-dist.wvr.bpl [2022-01-29 07:04:06,467 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-29 07:04:06,467 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-29 07:04:06,467 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-29 07:04:06,467 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-29 07:04:06,511 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-29 07:04:06,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 07:04:06,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:04:06,591 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-01-29 07:04:06,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-01-29 07:04:06,614 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-29 07:04:06,619 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-29 07:04:06,619 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-29 07:04:06,727 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-29 07:04:06,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:04:06,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1450805770, now seen corresponding path program 1 times [2022-01-29 07:04:06,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:04:06,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161255215] [2022-01-29 07:04:06,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:04:06,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:04:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:04:07,727 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 255 proven. 407 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-29 07:04:07,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:04:07,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161255215] [2022-01-29 07:04:07,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161255215] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:04:07,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221976852] [2022-01-29 07:04:07,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:04:07,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:04:07,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:04:07,731 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 07:04:07,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-29 07:04:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:04:07,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 43 conjunts are in the unsatisfiable core [2022-01-29 07:04:07,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:04:10,068 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 561 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:04:10,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 07:04:10,929 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 565 proven. 95 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-29 07:04:10,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221976852] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 07:04:10,929 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 07:04:10,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 40, 34] total 108 [2022-01-29 07:04:10,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832126943] [2022-01-29 07:04:10,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 07:04:10,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 109 states [2022-01-29 07:04:10,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:04:10,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2022-01-29 07:04:10,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3651, Invalid=8121, Unknown=0, NotChecked=0, Total=11772 [2022-01-29 07:04:10,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:04:10,966 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:04:10,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 109 states, 109 states have (on average 2.3211009174311927) internal successors, (253), 108 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 07:04:10,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:04:19,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 243 states. [2022-01-29 07:04:19,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-29 07:04:20,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-01-29 07:04:20,119 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-29 07:04:20,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:04:20,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1971493852, now seen corresponding path program 2 times [2022-01-29 07:04:20,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:04:20,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135066703] [2022-01-29 07:04:20,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:04:20,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:04:20,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:04:23,343 INFO L134 CoverageAnalysis]: Checked inductivity of 5123 backedges. 1241 proven. 3878 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-29 07:04:23,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:04:23,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135066703] [2022-01-29 07:04:23,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135066703] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:04:23,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597684963] [2022-01-29 07:04:23,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-29 07:04:23,345 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:04:23,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:04:23,346 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 07:04:23,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-29 07:04:23,449 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-29 07:04:23,450 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-29 07:04:23,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 116 conjunts are in the unsatisfiable core [2022-01-29 07:04:23,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:04:32,448 INFO L134 CoverageAnalysis]: Checked inductivity of 5123 backedges. 2377 proven. 2746 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:04:32,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 07:04:36,532 INFO L134 CoverageAnalysis]: Checked inductivity of 5123 backedges. 2377 proven. 2746 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:04:36,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597684963] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 07:04:36,532 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 07:04:36,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [105, 113, 113] total 278 [2022-01-29 07:04:36,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422660372] [2022-01-29 07:04:36,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 07:04:36,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 279 states [2022-01-29 07:04:36,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:04:36,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 279 interpolants. [2022-01-29 07:04:36,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12076, Invalid=65486, Unknown=0, NotChecked=0, Total=77562 [2022-01-29 07:04:36,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:04:36,550 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:04:36,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 279 states, 279 states have (on average 2.1362007168458783) internal successors, (596), 278 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 07:04:36,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 243 states. [2022-01-29 07:04:36,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:04:47,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 257 states. [2022-01-29 07:04:47,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 194 states. [2022-01-29 07:04:47,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-29 07:04:47,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:04:47,360 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-29 07:04:47,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:04:47,360 INFO L85 PathProgramCache]: Analyzing trace with hash 409521504, now seen corresponding path program 3 times [2022-01-29 07:04:47,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:04:47,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782130245] [2022-01-29 07:04:47,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:04:47,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:04:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:04:51,242 INFO L134 CoverageAnalysis]: Checked inductivity of 6285 backedges. 3370 proven. 2911 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-29 07:04:51,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:04:51,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782130245] [2022-01-29 07:04:51,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782130245] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:04:51,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804182944] [2022-01-29 07:04:51,243 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-29 07:04:51,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:04:51,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:04:51,245 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 07:04:51,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-29 07:04:51,389 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 59 check-sat command(s) [2022-01-29 07:04:51,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-29 07:04:51,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 125 conjunts are in the unsatisfiable core [2022-01-29 07:04:51,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:05:03,027 INFO L134 CoverageAnalysis]: Checked inductivity of 6285 backedges. 3370 proven. 2915 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:05:03,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 07:05:09,123 INFO L134 CoverageAnalysis]: Checked inductivity of 6285 backedges. 3370 proven. 2909 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-29 07:05:09,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804182944] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 07:05:09,123 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 07:05:09,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [118, 122, 116] total 294 [2022-01-29 07:05:09,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353600171] [2022-01-29 07:05:09,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 07:05:09,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 295 states [2022-01-29 07:05:09,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:05:09,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 295 interpolants. [2022-01-29 07:05:09,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12687, Invalid=74043, Unknown=0, NotChecked=0, Total=86730 [2022-01-29 07:05:09,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:05:09,161 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:05:09,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 295 states, 295 states have (on average 2.088135593220339) internal successors, (616), 294 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 07:05:09,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 257 states. [2022-01-29 07:05:09,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 194 states. [2022-01-29 07:05:09,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:05:27,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 257 states. [2022-01-29 07:05:27,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 305 states. [2022-01-29 07:05:27,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2022-01-29 07:05:27,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-29 07:05:28,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:05:28,042 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-29 07:05:28,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:05:28,043 INFO L85 PathProgramCache]: Analyzing trace with hash 373634360, now seen corresponding path program 4 times [2022-01-29 07:05:28,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:05:28,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234032568] [2022-01-29 07:05:28,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:05:28,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:05:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:05:34,088 INFO L134 CoverageAnalysis]: Checked inductivity of 9441 backedges. 5256 proven. 4183 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-29 07:05:34,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:05:34,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234032568] [2022-01-29 07:05:34,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234032568] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:05:34,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605180393] [2022-01-29 07:05:34,089 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-29 07:05:34,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:05:34,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:05:34,090 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 07:05:34,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-29 07:05:34,196 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-29 07:05:34,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-29 07:05:34,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 152 conjunts are in the unsatisfiable core [2022-01-29 07:05:34,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:05:49,368 INFO L134 CoverageAnalysis]: Checked inductivity of 9441 backedges. 5402 proven. 4039 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:05:49,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 07:05:57,642 INFO L134 CoverageAnalysis]: Checked inductivity of 9441 backedges. 5402 proven. 4039 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:05:57,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605180393] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 07:05:57,642 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 07:05:57,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [148, 149, 149] total 402 [2022-01-29 07:05:57,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211649844] [2022-01-29 07:05:57,643 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 07:05:57,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 403 states [2022-01-29 07:05:57,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:05:57,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 403 interpolants. [2022-01-29 07:05:57,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29895, Invalid=132111, Unknown=0, NotChecked=0, Total=162006 [2022-01-29 07:05:57,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:05:57,658 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:05:57,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 403 states, 403 states have (on average 2.066997518610422) internal successors, (833), 402 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 07:05:57,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 257 states. [2022-01-29 07:05:57,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 305 states. [2022-01-29 07:05:57,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 162 states. [2022-01-29 07:05:57,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:06:18,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 257 states. [2022-01-29 07:06:18,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 305 states. [2022-01-29 07:06:18,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2022-01-29 07:06:18,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 270 states. [2022-01-29 07:06:18,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-01-29 07:06:18,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:06:18,419 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-29 07:06:18,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:06:18,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1688985200, now seen corresponding path program 5 times [2022-01-29 07:06:18,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:06:18,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943695964] [2022-01-29 07:06:18,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:06:18,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:06:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:06:26,490 INFO L134 CoverageAnalysis]: Checked inductivity of 14349 backedges. 6565 proven. 7780 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-29 07:06:26,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:06:26,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943695964] [2022-01-29 07:06:26,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943695964] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:06:26,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919427095] [2022-01-29 07:06:26,491 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-29 07:06:26,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:06:26,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:06:26,492 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 07:06:26,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-29 07:06:26,669 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 85 check-sat command(s) [2022-01-29 07:06:26,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-29 07:06:26,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 182 conjunts are in the unsatisfiable core [2022-01-29 07:06:26,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:06:46,465 INFO L134 CoverageAnalysis]: Checked inductivity of 14349 backedges. 6732 proven. 7617 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:06:46,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 07:06:54,702 INFO L134 CoverageAnalysis]: Checked inductivity of 14349 backedges. 6771 proven. 7572 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-01-29 07:06:54,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919427095] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 07:06:54,702 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 07:06:54,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [175, 179, 173] total 441 [2022-01-29 07:06:54,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022392346] [2022-01-29 07:06:54,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 07:06:54,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 442 states [2022-01-29 07:06:54,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:06:54,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 442 interpolants. [2022-01-29 07:06:54,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29797, Invalid=165125, Unknown=0, NotChecked=0, Total=194922 [2022-01-29 07:06:54,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:06:54,719 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:06:54,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 442 states, 442 states have (on average 2.074660633484163) internal successors, (917), 441 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 07:06:54,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 257 states. [2022-01-29 07:06:54,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 305 states. [2022-01-29 07:06:54,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 162 states. [2022-01-29 07:06:54,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 270 states. [2022-01-29 07:06:54,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:07:27,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 257 states. [2022-01-29 07:07:27,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 305 states. [2022-01-29 07:07:27,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2022-01-29 07:07:27,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 350 states. [2022-01-29 07:07:27,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 292 states. [2022-01-29 07:07:27,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-29 07:07:27,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:07:27,319 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-29 07:07:27,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:07:27,320 INFO L85 PathProgramCache]: Analyzing trace with hash -39121582, now seen corresponding path program 6 times [2022-01-29 07:07:27,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:07:27,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53774580] [2022-01-29 07:07:27,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:07:27,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:07:27,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:07:36,015 INFO L134 CoverageAnalysis]: Checked inductivity of 14874 backedges. 6597 proven. 8275 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-29 07:07:36,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:07:36,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53774580] [2022-01-29 07:07:36,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53774580] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:07:36,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290362509] [2022-01-29 07:07:36,020 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-29 07:07:36,020 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:07:36,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:07:36,021 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 07:07:36,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-29 07:07:36,223 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 90 check-sat command(s) [2022-01-29 07:07:36,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-29 07:07:36,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 185 conjunts are in the unsatisfiable core [2022-01-29 07:07:36,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:07:57,439 INFO L134 CoverageAnalysis]: Checked inductivity of 14874 backedges. 6773 proven. 8101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:07:57,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 07:08:06,844 INFO L134 CoverageAnalysis]: Checked inductivity of 14874 backedges. 6773 proven. 8101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:08:06,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290362509] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 07:08:06,844 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 07:08:06,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [181, 182, 182] total 454 [2022-01-29 07:08:06,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277211829] [2022-01-29 07:08:06,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 07:08:06,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 455 states [2022-01-29 07:08:06,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:08:06,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 455 interpolants. [2022-01-29 07:08:06,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30610, Invalid=175960, Unknown=0, NotChecked=0, Total=206570 [2022-01-29 07:08:06,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:08:06,857 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:08:06,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 455 states, 455 states have (on average 2.0549450549450547) internal successors, (935), 454 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 07:08:06,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 257 states. [2022-01-29 07:08:06,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 305 states. [2022-01-29 07:08:06,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 162 states. [2022-01-29 07:08:06,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 350 states. [2022-01-29 07:08:06,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 292 states. [2022-01-29 07:08:06,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:08:31,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 257 states. [2022-01-29 07:08:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 305 states. [2022-01-29 07:08:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2022-01-29 07:08:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 350 states. [2022-01-29 07:08:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 292 states. [2022-01-29 07:08:31,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 293 states. [2022-01-29 07:08:31,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-29 07:08:31,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:08:31,246 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-29 07:08:31,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:08:31,246 INFO L85 PathProgramCache]: Analyzing trace with hash -527909234, now seen corresponding path program 7 times [2022-01-29 07:08:31,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:08:31,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845503906] [2022-01-29 07:08:31,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:08:31,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:08:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:08:45,709 INFO L134 CoverageAnalysis]: Checked inductivity of 15234 backedges. 0 proven. 15234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:08:45,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:08:45,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845503906] [2022-01-29 07:08:45,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845503906] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:08:45,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624700615] [2022-01-29 07:08:45,710 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-29 07:08:45,710 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:08:45,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:08:45,711 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 07:08:45,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-29 07:08:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:08:45,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 371 conjunts are in the unsatisfiable core [2022-01-29 07:08:45,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:09:16,797 INFO L134 CoverageAnalysis]: Checked inductivity of 15234 backedges. 0 proven. 15234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:09:16,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 07:09:18,983 INFO L134 CoverageAnalysis]: Checked inductivity of 15234 backedges. 0 proven. 15233 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-29 07:09:18,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624700615] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 07:09:18,984 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 07:09:18,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [184, 184, 93] total 368 [2022-01-29 07:09:18,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539967281] [2022-01-29 07:09:18,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 07:09:18,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 369 states [2022-01-29 07:09:18,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:09:18,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 369 interpolants. [2022-01-29 07:09:18,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1011, Invalid=134781, Unknown=0, NotChecked=0, Total=135792 [2022-01-29 07:09:18,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:09:18,993 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:09:18,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 369 states, 369 states have (on average 2.5718157181571817) internal successors, (949), 368 states have internal predecessors, (949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 07:09:18,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 257 states. [2022-01-29 07:09:18,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 305 states. [2022-01-29 07:09:18,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 162 states. [2022-01-29 07:09:18,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 350 states. [2022-01-29 07:09:18,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 292 states. [2022-01-29 07:09:18,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 293 states. [2022-01-29 07:09:18,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:10:02,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 257 states. [2022-01-29 07:10:02,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 305 states. [2022-01-29 07:10:02,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2022-01-29 07:10:02,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 490 states. [2022-01-29 07:10:02,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 292 states. [2022-01-29 07:10:02,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 293 states. [2022-01-29 07:10:02,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 185 states. [2022-01-29 07:10:03,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-29 07:10:03,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-01-29 07:10:03,185 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-29 07:10:03,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:10:03,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1751202548, now seen corresponding path program 8 times [2022-01-29 07:10:03,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:10:03,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116327629] [2022-01-29 07:10:03,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:10:03,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:10:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:10:16,123 INFO L134 CoverageAnalysis]: Checked inductivity of 21171 backedges. 12393 proven. 8776 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-29 07:10:16,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:10:16,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116327629] [2022-01-29 07:10:16,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116327629] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:10:16,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267515153] [2022-01-29 07:10:16,124 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-29 07:10:16,124 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:10:16,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:10:16,125 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 07:10:16,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-29 07:10:16,264 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-29 07:10:16,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-29 07:10:16,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 1124 conjuncts, 220 conjunts are in the unsatisfiable core [2022-01-29 07:10:16,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:10:46,699 INFO L134 CoverageAnalysis]: Checked inductivity of 21171 backedges. 12617 proven. 8554 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:10:46,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 07:11:03,731 INFO L134 CoverageAnalysis]: Checked inductivity of 21171 backedges. 12617 proven. 8554 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:11:03,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267515153] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 07:11:03,732 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 07:11:03,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [216, 217, 217] total 587 [2022-01-29 07:11:03,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059844414] [2022-01-29 07:11:03,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 07:11:03,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 588 states [2022-01-29 07:11:03,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:11:03,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 588 interpolants. [2022-01-29 07:11:03,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63870, Invalid=281286, Unknown=0, NotChecked=0, Total=345156 [2022-01-29 07:11:03,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:11:03,760 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:11:03,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 588 states, 588 states have (on average 2.045918367346939) internal successors, (1203), 587 states have internal predecessors, (1203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 07:11:03,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 257 states. [2022-01-29 07:11:03,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 305 states. [2022-01-29 07:11:03,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 162 states. [2022-01-29 07:11:03,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 490 states. [2022-01-29 07:11:03,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 292 states. [2022-01-29 07:11:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 293 states. [2022-01-29 07:11:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 185 states. [2022-01-29 07:11:03,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:11:45,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 257 states. [2022-01-29 07:11:45,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 305 states. [2022-01-29 07:11:45,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2022-01-29 07:11:45,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 490 states. [2022-01-29 07:11:45,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 292 states. [2022-01-29 07:11:45,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 293 states. [2022-01-29 07:11:45,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 185 states. [2022-01-29 07:11:45,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2022-01-29 07:11:45,448 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-01-29 07:11:45,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:11:45,630 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-29 07:11:45,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:11:45,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1077788454, now seen corresponding path program 9 times [2022-01-29 07:11:45,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:11:45,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079782989] [2022-01-29 07:11:45,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:11:45,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:11:46,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:12:02,011 INFO L134 CoverageAnalysis]: Checked inductivity of 30324 backedges. 14404 proven. 15890 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-29 07:12:02,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:12:02,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079782989] [2022-01-29 07:12:02,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079782989] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:12:02,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032464836] [2022-01-29 07:12:02,011 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-29 07:12:02,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:12:02,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:12:02,013 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 07:12:02,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-29 07:12:02,347 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 125 check-sat command(s) [2022-01-29 07:12:02,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-29 07:12:02,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 1319 conjuncts, 259 conjunts are in the unsatisfiable core [2022-01-29 07:12:02,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:12:41,349 INFO L134 CoverageAnalysis]: Checked inductivity of 30324 backedges. 14690 proven. 15634 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:12:41,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 07:12:58,648 INFO L134 CoverageAnalysis]: Checked inductivity of 30324 backedges. 14690 proven. 15634 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:12:58,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032464836] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 07:12:58,649 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 07:12:58,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [251, 256, 256] total 637 [2022-01-29 07:12:58,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557255944] [2022-01-29 07:12:58,649 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 07:12:58,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 638 states [2022-01-29 07:12:58,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:12:58,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 638 interpolants. [2022-01-29 07:12:58,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63743, Invalid=342663, Unknown=0, NotChecked=0, Total=406406 [2022-01-29 07:12:58,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:12:58,687 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:12:58,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 638 states, 638 states have (on average 2.0391849529780566) internal successors, (1301), 637 states have internal predecessors, (1301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 07:12:58,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 257 states. [2022-01-29 07:12:58,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 305 states. [2022-01-29 07:12:58,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 162 states. [2022-01-29 07:12:58,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 490 states. [2022-01-29 07:12:58,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 292 states. [2022-01-29 07:12:58,688 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 293 states. [2022-01-29 07:12:58,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 185 states. [2022-01-29 07:12:58,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 383 states. [2022-01-29 07:12:58,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:13:48,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 257 states. [2022-01-29 07:13:48,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 305 states. [2022-01-29 07:13:48,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 162 states. [2022-01-29 07:13:48,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 490 states. [2022-01-29 07:13:48,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 292 states. [2022-01-29 07:13:48,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 293 states. [2022-01-29 07:13:48,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 185 states. [2022-01-29 07:13:48,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2022-01-29 07:13:48,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 410 states. [2022-01-29 07:13:48,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-29 07:13:48,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-01-29 07:13:48,631 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-29 07:13:48,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:13:48,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1130869106, now seen corresponding path program 10 times [2022-01-29 07:13:48,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:13:48,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533882489] [2022-01-29 07:13:48,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:13:48,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:13:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:14:15,818 INFO L134 CoverageAnalysis]: Checked inductivity of 31848 backedges. 0 proven. 31848 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:14:15,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:14:15,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533882489] [2022-01-29 07:14:15,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533882489] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:14:15,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236004205] [2022-01-29 07:14:15,820 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-29 07:14:15,823 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:14:15,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:14:15,824 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-29 07:14:15,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-29 07:14:16,020 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-29 07:14:16,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-29 07:14:16,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 1349 conjuncts, 527 conjunts are in the unsatisfiable core [2022-01-29 07:14:16,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:15:17,564 INFO L134 CoverageAnalysis]: Checked inductivity of 31848 backedges. 0 proven. 31848 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:15:17,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 07:15:20,600 INFO L134 CoverageAnalysis]: Checked inductivity of 31848 backedges. 0 proven. 31847 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-29 07:15:20,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236004205] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 07:15:20,601 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 07:15:20,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [262, 262, 132] total 524 [2022-01-29 07:15:20,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549305995] [2022-01-29 07:15:20,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 07:15:20,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 525 states [2022-01-29 07:15:20,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:15:20,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 525 interpolants. [2022-01-29 07:15:20,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1440, Invalid=273660, Unknown=0, NotChecked=0, Total=275100 [2022-01-29 07:15:20,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:15:20,614 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:15:20,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 525 states, 525 states have (on average 2.5504761904761906) internal successors, (1339), 524 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 07:15:20,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 257 states. [2022-01-29 07:15:20,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 305 states. [2022-01-29 07:15:20,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 162 states. [2022-01-29 07:15:20,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 490 states. [2022-01-29 07:15:20,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 292 states. [2022-01-29 07:15:20,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 293 states. [2022-01-29 07:15:20,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 185 states. [2022-01-29 07:15:20,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 383 states. [2022-01-29 07:15:20,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 410 states. [2022-01-29 07:15:20,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-01-29 07:15:59,531 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-01-29 07:15:59,540 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-29 07:15:59,541 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-29 07:15:59,540 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-29 07:15:59,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-01-29 07:15:59,727 WARN L594 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-01-29 07:15:59,729 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-01-29 07:15:59,730 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-29 07:15:59,730 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-29 07:15:59,730 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-29 07:15:59,734 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-01-29 07:15:59,745 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-29 07:15:59,745 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-29 07:15:59,747 INFO L202 PluginConnector]: Adding new model mult-dist.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 07:15:59 BasicIcfg [2022-01-29 07:15:59,747 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-29 07:15:59,748 INFO L158 Benchmark]: Toolchain (without parser) took 713531.61ms. Allocated memory was 179.3MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 138.2MB in the beginning and 680.0MB in the end (delta: -541.8MB). Peak memory consumption was 834.0MB. Max. memory is 8.0GB. [2022-01-29 07:15:59,749 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 179.3MB. Free memory is still 139.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-29 07:15:59,749 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.69ms. Allocated memory is still 179.3MB. Free memory was 138.2MB in the beginning and 136.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-29 07:15:59,749 INFO L158 Benchmark]: Boogie Preprocessor took 19.64ms. Allocated memory is still 179.3MB. Free memory was 136.6MB in the beginning and 135.7MB in the end (delta: 898.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-29 07:15:59,749 INFO L158 Benchmark]: RCFGBuilder took 176.48ms. Allocated memory is still 179.3MB. Free memory was 135.6MB in the beginning and 126.4MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-01-29 07:15:59,749 INFO L158 Benchmark]: TraceAbstraction took 713301.37ms. Allocated memory was 179.3MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 126.0MB in the beginning and 680.0MB in the end (delta: -553.9MB). Peak memory consumption was 821.4MB. Max. memory is 8.0GB. [2022-01-29 07:15:59,750 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.09ms. Allocated memory is still 179.3MB. Free memory is still 139.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.69ms. Allocated memory is still 179.3MB. Free memory was 138.2MB in the beginning and 136.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.64ms. Allocated memory is still 179.3MB. Free memory was 136.6MB in the beginning and 135.7MB in the end (delta: 898.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 176.48ms. Allocated memory is still 179.3MB. Free memory was 135.6MB in the beginning and 126.4MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 713301.37ms. Allocated memory was 179.3MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 126.0MB in the beginning and 680.0MB in the end (delta: -553.9MB). Peak memory consumption was 821.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 63]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 57]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 39 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 713.1s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 289.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2978, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 417.0s InterpolantComputationTime, 7032 NumberOfCodeBlocks, 7032 NumberOfCodeBlocksAsserted, 377 NumberOfCheckSat, 10518 ConstructedInterpolants, 0 QuantifiedInterpolants, 133006 SizeOfPredicates, 72 NumberOfNonLiveVariables, 8905 ConjunctsInSsa, 2180 ConjunctsInUnsatCore, 30 InterpolantComputations, 0 PerfectInterpolantSequences, 155240/447945 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown