/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 00:22:00,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 00:22:00,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 00:22:00,600 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-04 00:22:00,644 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-04 00:22:00,678 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 00:22:00,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 00:22:00,679 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 00:22:00,679 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 00:22:00,680 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 00:22:00,680 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 00:22:00,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 00:22:00,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 00:22:00,680 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 00:22:00,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 00:22:00,681 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 00:22:00,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 00:22:00,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 00:22:00,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 00:22:00,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 00:22:00,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 00:22:00,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 00:22:00,682 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 00:22:00,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 00:22:00,682 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 00:22:00,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 00:22:00,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 00:22:00,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 00:22:00,683 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 00:22:00,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 00:22:00,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 00:22:00,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 00:22:00,683 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 00:22:00,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 00:22:00,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 00:22:00,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 00:22:00,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 00:22:00,684 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 00:22:00,684 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 00:22:00,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 00:22:00,684 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 00:22:00,684 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-04 00:22:00,684 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 00:22:00,684 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 00:22:00,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 00:22:00,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 00:22:00,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 00:22:00,942 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 00:22:00,945 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 00:22:00,946 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl [2022-03-04 00:22:00,946 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl' [2022-03-04 00:22:00,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 00:22:00,968 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 00:22:00,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 00:22:00,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 00:22:00,972 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 00:22:00,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:22:00" (1/1) ... [2022-03-04 00:22:00,999 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:22:00" (1/1) ... [2022-03-04 00:22:01,004 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 00:22:01,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 00:22:01,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 00:22:01,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 00:22:01,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 00:22:01,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:22:00" (1/1) ... [2022-03-04 00:22:01,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:22:00" (1/1) ... [2022-03-04 00:22:01,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:22:00" (1/1) ... [2022-03-04 00:22:01,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:22:00" (1/1) ... [2022-03-04 00:22:01,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:22:00" (1/1) ... [2022-03-04 00:22:01,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:22:00" (1/1) ... [2022-03-04 00:22:01,019 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:22:00" (1/1) ... [2022-03-04 00:22:01,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 00:22:01,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 00:22:01,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 00:22:01,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 00:22:01,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:22:00" (1/1) ... [2022-03-04 00:22:01,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 00:22:01,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:22:01,045 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) [2022-03-04 00:22:01,059 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 [2022-03-04 00:22:01,081 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 00:22:01,081 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 00:22:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 00:22:01,082 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 00:22:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 00:22:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 00:22:01,082 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 00:22:01,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 00:22:01,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 00:22:01,083 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 00:22:01,121 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 00:22:01,122 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 00:22:01,212 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 00:22:01,218 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 00:22:01,219 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 00:22:01,220 INFO L202 PluginConnector]: Adding new model loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 12:22:01 BoogieIcfgContainer [2022-03-04 00:22:01,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 00:22:01,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 00:22:01,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 00:22:01,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 00:22:01,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:22:00" (1/2) ... [2022-03-04 00:22:01,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@818f6f4 and model type loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:22:01, skipping insertion in model container [2022-03-04 00:22:01,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 12:22:01" (2/2) ... [2022-03-04 00:22:01,234 INFO L111 eAbstractionObserver]: Analyzing ICFG loop-lockstep-example.bpl [2022-03-04 00:22:01,239 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 00:22:01,239 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 00:22:01,239 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 00:22:01,247 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 00:22:01,272 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,273 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,273 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,273 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,274 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,274 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,275 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,275 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,275 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,275 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,276 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,276 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,276 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,276 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,277 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,277 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,278 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,278 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,278 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,278 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,281 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,283 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-04 00:22:01,292 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-04 00:22:01,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 00:22:01,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:22:01,334 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) [2022-03-04 00:22:01,352 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 [2022-03-04 00:22:01,376 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 00:22:01,385 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-04 00:22:01,386 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-04 00:22:01,912 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 680 transitions and produced 556 states. [2022-03-04 00:22:01,916 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:22:01,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:22:01,924 INFO L85 PathProgramCache]: Analyzing trace with hash -482847489, now seen corresponding path program 1 times [2022-03-04 00:22:01,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:22:01,931 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957865180] [2022-03-04 00:22:01,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:22:01,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:22:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:22:03,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3068 backedges. 1666 proven. 1325 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-03-04 00:22:03,161 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:22:03,161 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957865180] [2022-03-04 00:22:03,161 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957865180] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:22:03,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095373080] [2022-03-04 00:22:03,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:22:03,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:22:03,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:22:03,181 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) [2022-03-04 00:22:03,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 00:22:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:22:03,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 47 conjunts are in the unsatisfiable core [2022-03-04 00:22:03,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:22:05,676 INFO L134 CoverageAnalysis]: Checked inductivity of 3068 backedges. 1328 proven. 1740 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:22:05,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:22:06,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3068 backedges. 1666 proven. 1325 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-03-04 00:22:06,737 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095373080] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:22:06,737 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:22:06,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 48, 33] total 102 [2022-03-04 00:22:06,739 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847135304] [2022-03-04 00:22:06,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:22:06,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-03-04 00:22:06,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:22:06,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-03-04 00:22:06,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2520, Invalid=7782, Unknown=0, NotChecked=0, Total=10302 [2022-03-04 00:22:06,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:22:06,784 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:22:06,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 5.431372549019608) internal successors, (554), 102 states have internal predecessors, (554), 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) [2022-03-04 00:22:06,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:22:11,094 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 916 transitions and produced 798 states. [2022-03-04 00:22:11,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:22:11,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-04 00:22:11,300 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 [2022-03-04 00:22:11,301 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:22:11,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:22:11,302 INFO L85 PathProgramCache]: Analyzing trace with hash -234927907, now seen corresponding path program 2 times [2022-03-04 00:22:11,302 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:22:11,302 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821220360] [2022-03-04 00:22:11,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:22:11,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:22:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:22:13,075 INFO L134 CoverageAnalysis]: Checked inductivity of 5446 backedges. 2544 proven. 2902 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:22:13,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:22:13,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821220360] [2022-03-04 00:22:13,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821220360] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:22:13,076 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842757836] [2022-03-04 00:22:13,076 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 00:22:13,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:22:13,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:22:13,078 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) [2022-03-04 00:22:13,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 00:22:13,185 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 00:22:13,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:22:13,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 66 conjunts are in the unsatisfiable core [2022-03-04 00:22:13,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:22:16,309 INFO L134 CoverageAnalysis]: Checked inductivity of 5446 backedges. 2399 proven. 2882 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-03-04 00:22:16,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:22:16,895 INFO L134 CoverageAnalysis]: Checked inductivity of 5446 backedges. 2399 proven. 2882 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-03-04 00:22:16,895 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842757836] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:22:16,896 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:22:16,896 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 67, 67] total 135 [2022-03-04 00:22:16,896 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613861681] [2022-03-04 00:22:16,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:22:16,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 135 states [2022-03-04 00:22:16,898 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:22:16,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 135 interpolants. [2022-03-04 00:22:16,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3175, Invalid=14915, Unknown=0, NotChecked=0, Total=18090 [2022-03-04 00:22:16,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:22:16,905 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:22:16,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 135 states, 135 states have (on average 4.214814814814815) internal successors, (569), 135 states have internal predecessors, (569), 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) [2022-03-04 00:22:16,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:22:16,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:22:17,304 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 737 transitions and produced 717 states. [2022-03-04 00:22:17,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:22:17,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:22:17,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 00:22:17,506 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 [2022-03-04 00:22:17,507 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:22:17,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:22:17,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1358903039, now seen corresponding path program 3 times [2022-03-04 00:22:17,508 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:22:17,508 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038025371] [2022-03-04 00:22:17,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:22:17,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:22:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:22:19,300 INFO L134 CoverageAnalysis]: Checked inductivity of 5633 backedges. 2544 proven. 3089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:22:19,301 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:22:19,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038025371] [2022-03-04 00:22:19,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038025371] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:22:19,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619579882] [2022-03-04 00:22:19,302 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 00:22:19,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:22:19,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:22:19,314 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) [2022-03-04 00:22:19,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 00:22:19,451 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 42 check-sat command(s) [2022-03-04 00:22:19,451 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:22:19,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 77 conjunts are in the unsatisfiable core [2022-03-04 00:22:19,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:22:23,474 INFO L134 CoverageAnalysis]: Checked inductivity of 5633 backedges. 2544 proven. 3089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:22:23,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:22:25,102 INFO L134 CoverageAnalysis]: Checked inductivity of 5633 backedges. 2544 proven. 3089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:22:25,103 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619579882] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:22:25,103 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:22:25,103 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 78, 78] total 172 [2022-03-04 00:22:25,103 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440315002] [2022-03-04 00:22:25,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:22:25,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 172 states [2022-03-04 00:22:25,104 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:22:25,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 172 interpolants. [2022-03-04 00:22:25,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5436, Invalid=23976, Unknown=0, NotChecked=0, Total=29412 [2022-03-04 00:22:25,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:22:25,113 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:22:25,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 172 states, 172 states have (on average 4.284883720930233) internal successors, (737), 172 states have internal predecessors, (737), 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) [2022-03-04 00:22:25,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:22:25,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:22:25,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:22:25,621 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 854 transitions and produced 834 states. [2022-03-04 00:22:25,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:22:25,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:22:25,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-04 00:22:25,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-04 00:22:25,823 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 [2022-03-04 00:22:25,823 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:22:25,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:22:25,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1581565115, now seen corresponding path program 4 times [2022-03-04 00:22:25,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:22:25,824 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141153620] [2022-03-04 00:22:25,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:22:25,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:22:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:22:27,752 INFO L134 CoverageAnalysis]: Checked inductivity of 7586 backedges. 2544 proven. 5042 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:22:27,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:22:27,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141153620] [2022-03-04 00:22:27,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141153620] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:22:27,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939655133] [2022-03-04 00:22:27,753 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 00:22:27,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:22:27,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:22:27,754 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) [2022-03-04 00:22:27,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 00:22:27,882 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 00:22:27,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:22:27,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 86 conjunts are in the unsatisfiable core [2022-03-04 00:22:27,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:22:31,894 INFO L134 CoverageAnalysis]: Checked inductivity of 7586 backedges. 2544 proven. 5042 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:22:31,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:22:32,602 INFO L134 CoverageAnalysis]: Checked inductivity of 7586 backedges. 2544 proven. 5042 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:22:32,603 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939655133] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:22:32,603 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:22:32,603 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 87, 87] total 155 [2022-03-04 00:22:32,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609185784] [2022-03-04 00:22:32,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:22:32,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 155 states [2022-03-04 00:22:32,605 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:22:32,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2022-03-04 00:22:32,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4070, Invalid=19800, Unknown=0, NotChecked=0, Total=23870 [2022-03-04 00:22:32,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:22:32,608 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:22:32,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 155 states, 155 states have (on average 4.2387096774193544) internal successors, (657), 155 states have internal predecessors, (657), 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) [2022-03-04 00:22:32,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:22:32,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:22:32,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-04 00:22:32,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:22:33,228 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 867 transitions and produced 847 states. [2022-03-04 00:22:33,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:22:33,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:22:33,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-04 00:22:33,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-04 00:22:33,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-04 00:22:33,448 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 [2022-03-04 00:22:33,448 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:22:33,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:22:33,449 INFO L85 PathProgramCache]: Analyzing trace with hash -2012787351, now seen corresponding path program 5 times [2022-03-04 00:22:33,449 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:22:33,449 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345679085] [2022-03-04 00:22:33,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:22:33,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:22:33,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:22:43,144 INFO L134 CoverageAnalysis]: Checked inductivity of 7833 backedges. 0 proven. 7827 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 00:22:43,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:22:43,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345679085] [2022-03-04 00:22:43,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345679085] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:22:43,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685016801] [2022-03-04 00:22:43,160 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 00:22:43,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:22:43,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:22:43,170 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) [2022-03-04 00:22:43,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-04 00:22:43,305 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 43 check-sat command(s) [2022-03-04 00:22:43,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:22:43,316 WARN L261 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 423 conjunts are in the unsatisfiable core [2022-03-04 00:22:43,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:22:44,675 INFO L134 CoverageAnalysis]: Checked inductivity of 7833 backedges. 0 proven. 7827 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 00:22:44,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:22:45,991 INFO L134 CoverageAnalysis]: Checked inductivity of 7833 backedges. 0 proven. 7827 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 00:22:45,992 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685016801] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:22:45,992 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:22:45,992 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [165, 165, 165] total 165 [2022-03-04 00:22:45,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533236607] [2022-03-04 00:22:45,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:22:45,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 167 states [2022-03-04 00:22:45,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:22:45,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants. [2022-03-04 00:22:45,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=27391, Unknown=0, NotChecked=0, Total=27722 [2022-03-04 00:22:45,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:22:45,995 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:22:45,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 167 states, 166 states have (on average 2.3132530120481927) internal successors, (384), 166 states have internal predecessors, (384), 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) [2022-03-04 00:22:45,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:22:45,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:22:45,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-04 00:22:45,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-04 00:22:45,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:22:54,747 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1190 transitions and produced 1170 states. [2022-03-04 00:22:54,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:22:54,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:22:54,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-04 00:22:54,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-04 00:22:54,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-04 00:22:54,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-04 00:22:54,963 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 [2022-03-04 00:22:54,963 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:22:54,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:22:54,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1105778395, now seen corresponding path program 6 times [2022-03-04 00:22:54,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:22:54,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247343306] [2022-03-04 00:22:54,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:22:54,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:22:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:22:58,004 INFO L134 CoverageAnalysis]: Checked inductivity of 15958 backedges. 6864 proven. 9094 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:22:58,005 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:22:58,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247343306] [2022-03-04 00:22:58,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247343306] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:22:58,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962632866] [2022-03-04 00:22:58,005 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 00:22:58,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:22:58,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:22:58,007 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) [2022-03-04 00:22:58,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-04 00:22:58,261 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 68 check-sat command(s) [2022-03-04 00:22:58,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:22:58,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 112 conjunts are in the unsatisfiable core [2022-03-04 00:22:58,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:23:03,256 INFO L134 CoverageAnalysis]: Checked inductivity of 15958 backedges. 12936 proven. 3022 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:23:03,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:23:07,500 INFO L134 CoverageAnalysis]: Checked inductivity of 15958 backedges. 6864 proven. 9094 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:23:07,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962632866] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:23:07,501 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:23:07,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [113, 113, 113] total 253 [2022-03-04 00:23:07,501 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653450537] [2022-03-04 00:23:07,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:23:07,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 253 states [2022-03-04 00:23:07,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:23:07,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 253 interpolants. [2022-03-04 00:23:07,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11882, Invalid=51874, Unknown=0, NotChecked=0, Total=63756 [2022-03-04 00:23:07,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:23:07,508 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:23:07,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 253 states, 253 states have (on average 4.707509881422925) internal successors, (1191), 253 states have internal predecessors, (1191), 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) [2022-03-04 00:23:07,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:23:07,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:23:07,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-04 00:23:07,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-04 00:23:07,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-04 00:23:07,509 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:23:19,972 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1623 transitions and produced 1448 states. [2022-03-04 00:23:19,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:23:19,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:23:19,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-04 00:23:19,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-04 00:23:19,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-04 00:23:19,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-04 00:23:19,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-04 00:23:20,174 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 [2022-03-04 00:23:20,174 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:23:20,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:23:20,175 INFO L85 PathProgramCache]: Analyzing trace with hash -995187699, now seen corresponding path program 7 times [2022-03-04 00:23:20,175 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:23:20,175 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969375178] [2022-03-04 00:23:20,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:23:20,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:23:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:23:42,710 INFO L134 CoverageAnalysis]: Checked inductivity of 20033 backedges. 0 proven. 20027 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 00:23:42,710 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:23:42,710 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969375178] [2022-03-04 00:23:42,711 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969375178] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:23:42,711 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889626658] [2022-03-04 00:23:42,711 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 00:23:42,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:23:42,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:23:42,712 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) [2022-03-04 00:23:42,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-04 00:23:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:23:42,895 WARN L261 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 673 conjunts are in the unsatisfiable core [2022-03-04 00:23:42,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:23:44,668 INFO L134 CoverageAnalysis]: Checked inductivity of 20033 backedges. 0 proven. 20027 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 00:23:44,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:23:46,445 INFO L134 CoverageAnalysis]: Checked inductivity of 20033 backedges. 0 proven. 20027 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 00:23:46,446 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889626658] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:23:46,448 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:23:46,449 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [265, 265, 265] total 265 [2022-03-04 00:23:46,449 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649536714] [2022-03-04 00:23:46,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:23:46,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 267 states [2022-03-04 00:23:46,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:23:46,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 267 interpolants. [2022-03-04 00:23:46,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=531, Invalid=70491, Unknown=0, NotChecked=0, Total=71022 [2022-03-04 00:23:46,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:23:46,459 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:23:46,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 267 states, 266 states have (on average 2.289473684210526) internal successors, (609), 266 states have internal predecessors, (609), 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) [2022-03-04 00:23:46,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:23:46,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:23:46,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-04 00:23:46,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-04 00:23:46,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-04 00:23:46,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2022-03-04 00:23:46,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:24:06,559 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1686 transitions and produced 1642 states. [2022-03-04 00:24:06,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:24:06,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:24:06,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-04 00:24:06,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-04 00:24:06,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-04 00:24:06,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-04 00:24:06,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-03-04 00:24:06,578 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-03-04 00:24:06,760 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 [2022-03-04 00:24:06,760 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:24:06,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:24:06,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1281209765, now seen corresponding path program 8 times [2022-03-04 00:24:06,761 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:24:06,761 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374781031] [2022-03-04 00:24:06,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:24:06,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:24:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:24:12,843 INFO L134 CoverageAnalysis]: Checked inductivity of 31908 backedges. 14989 proven. 16919 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:24:12,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:24:12,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374781031] [2022-03-04 00:24:12,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374781031] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:24:12,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220781503] [2022-03-04 00:24:12,844 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 00:24:12,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:24:12,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:24:12,845 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) [2022-03-04 00:24:12,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-04 00:24:13,035 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 00:24:13,035 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:24:13,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 1372 conjuncts, 162 conjunts are in the unsatisfiable core [2022-03-04 00:24:13,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:24:20,770 INFO L134 CoverageAnalysis]: Checked inductivity of 31908 backedges. 24661 proven. 7247 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:24:20,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:24:26,190 INFO L134 CoverageAnalysis]: Checked inductivity of 31908 backedges. 14989 proven. 16919 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:24:26,190 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220781503] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:24:26,190 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:24:26,191 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [163, 163, 163] total 328 [2022-03-04 00:24:26,191 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806965942] [2022-03-04 00:24:26,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:24:26,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 328 states [2022-03-04 00:24:26,192 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:24:26,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 328 interpolants. [2022-03-04 00:24:26,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19982, Invalid=87274, Unknown=0, NotChecked=0, Total=107256 [2022-03-04 00:24:26,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:24:26,202 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:24:26,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 328 states, 328 states have (on average 4.545731707317073) internal successors, (1491), 328 states have internal predecessors, (1491), 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) [2022-03-04 00:24:26,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:24:26,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:24:26,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-04 00:24:26,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-04 00:24:26,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-04 00:24:26,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2022-03-04 00:24:26,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-03-04 00:24:26,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:24:47,031 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2123 transitions and produced 1924 states. [2022-03-04 00:24:47,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:24:47,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:24:47,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-04 00:24:47,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-04 00:24:47,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-04 00:24:47,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-04 00:24:47,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-03-04 00:24:47,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 332 states. [2022-03-04 00:24:47,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-04 00:24:47,233 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 [2022-03-04 00:24:47,234 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:24:47,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:24:47,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1649614961, now seen corresponding path program 9 times [2022-03-04 00:24:47,234 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:24:47,234 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577764854] [2022-03-04 00:24:47,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:24:47,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:24:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:25:29,164 INFO L134 CoverageAnalysis]: Checked inductivity of 37858 backedges. 0 proven. 37852 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 00:25:29,164 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:25:29,164 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577764854] [2022-03-04 00:25:29,164 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577764854] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:25:29,165 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702741976] [2022-03-04 00:25:29,165 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 00:25:29,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:25:29,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:25:29,166 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) [2022-03-04 00:25:29,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-04 00:25:29,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 93 check-sat command(s) [2022-03-04 00:25:29,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:25:29,557 WARN L261 TraceCheckSpWp]: Trace formula consists of 1497 conjuncts, 923 conjunts are in the unsatisfiable core [2022-03-04 00:25:29,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:25:31,956 INFO L134 CoverageAnalysis]: Checked inductivity of 37858 backedges. 0 proven. 37852 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 00:25:31,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:25:34,356 INFO L134 CoverageAnalysis]: Checked inductivity of 37858 backedges. 0 proven. 37852 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 00:25:34,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702741976] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:25:34,358 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:25:34,358 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [365, 365, 365] total 365 [2022-03-04 00:25:34,359 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397969643] [2022-03-04 00:25:34,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:25:34,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 367 states [2022-03-04 00:25:34,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:25:34,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 367 interpolants. [2022-03-04 00:25:34,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=731, Invalid=133591, Unknown=0, NotChecked=0, Total=134322 [2022-03-04 00:25:34,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:25:34,365 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:25:34,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 367 states, 366 states have (on average 2.278688524590164) internal successors, (834), 366 states have internal predecessors, (834), 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) [2022-03-04 00:25:34,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:25:34,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:25:34,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-04 00:25:34,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-04 00:25:34,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-04 00:25:34,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2022-03-04 00:25:34,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-03-04 00:25:34,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 332 states. [2022-03-04 00:25:34,366 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:11,934 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2186 transitions and produced 2118 states. [2022-03-04 00:26:11,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:26:11,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:26:11,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-04 00:26:11,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-04 00:26:11,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-04 00:26:11,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-04 00:26:11,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-03-04 00:26:11,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 332 states. [2022-03-04 00:26:11,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 367 states. [2022-03-04 00:26:11,956 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-03-04 00:26:12,136 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 [2022-03-04 00:26:12,136 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:26:12,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:26:12,137 INFO L85 PathProgramCache]: Analyzing trace with hash 589845091, now seen corresponding path program 10 times [2022-03-04 00:26:12,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:26:12,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37416661] [2022-03-04 00:26:12,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:26:12,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:26:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:26:22,517 INFO L134 CoverageAnalysis]: Checked inductivity of 53483 backedges. 26864 proven. 26619 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:26:22,517 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:26:22,517 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37416661] [2022-03-04 00:26:22,517 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37416661] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:26:22,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216742853] [2022-03-04 00:26:22,518 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 00:26:22,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:26:22,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:26:22,519 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) [2022-03-04 00:26:22,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-04 00:26:22,751 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 00:26:22,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:26:22,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 1772 conjuncts, 212 conjunts are in the unsatisfiable core [2022-03-04 00:26:22,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:26:33,875 INFO L134 CoverageAnalysis]: Checked inductivity of 53483 backedges. 40136 proven. 13347 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:26:33,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:26:40,621 INFO L134 CoverageAnalysis]: Checked inductivity of 53483 backedges. 26864 proven. 26619 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:26:40,622 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216742853] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:26:40,622 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:26:40,622 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [213, 213, 213] total 403 [2022-03-04 00:26:40,623 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924885390] [2022-03-04 00:26:40,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:26:40,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 403 states [2022-03-04 00:26:40,624 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:26:40,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 403 interpolants. [2022-03-04 00:26:40,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30582, Invalid=131424, Unknown=0, NotChecked=0, Total=162006 [2022-03-04 00:26:40,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:26:40,640 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:26:40,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 403 states, 403 states have (on average 4.444168734491315) internal successors, (1791), 403 states have internal predecessors, (1791), 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) [2022-03-04 00:26:40,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:26:40,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:26:40,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-04 00:26:40,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-04 00:26:40,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-04 00:26:40,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2022-03-04 00:26:40,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-03-04 00:26:40,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 332 states. [2022-03-04 00:26:40,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 367 states. [2022-03-04 00:26:40,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:27:13,352 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2623 transitions and produced 2400 states. [2022-03-04 00:27:13,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:27:13,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:27:13,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-04 00:27:13,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-04 00:27:13,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-04 00:27:13,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-04 00:27:13,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-03-04 00:27:13,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 332 states. [2022-03-04 00:27:13,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 367 states. [2022-03-04 00:27:13,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2022-03-04 00:27:13,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-04 00:27:13,561 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 [2022-03-04 00:27:13,561 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:27:13,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:27:13,562 INFO L85 PathProgramCache]: Analyzing trace with hash 992963845, now seen corresponding path program 11 times [2022-03-04 00:27:13,562 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:27:13,562 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465234049] [2022-03-04 00:27:13,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:27:13,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:27:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:28:19,576 INFO L134 CoverageAnalysis]: Checked inductivity of 61308 backedges. 0 proven. 61302 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 00:28:19,576 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:28:19,576 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465234049] [2022-03-04 00:28:19,576 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465234049] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:28:19,576 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731642494] [2022-03-04 00:28:19,577 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 00:28:19,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:28:19,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:28:19,578 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:28:19,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-04 00:28:20,084 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 118 check-sat command(s) [2022-03-04 00:28:20,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:28:20,162 WARN L261 TraceCheckSpWp]: Trace formula consists of 1897 conjuncts, 1173 conjunts are in the unsatisfiable core [2022-03-04 00:28:20,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:28:23,060 INFO L134 CoverageAnalysis]: Checked inductivity of 61308 backedges. 0 proven. 61302 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 00:28:23,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:28:26,093 INFO L134 CoverageAnalysis]: Checked inductivity of 61308 backedges. 0 proven. 61302 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 00:28:26,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731642494] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:28:26,094 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:28:26,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [465, 465, 465] total 465 [2022-03-04 00:28:26,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431969988] [2022-03-04 00:28:26,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:28:26,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 467 states [2022-03-04 00:28:26,096 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:28:26,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 467 interpolants. [2022-03-04 00:28:26,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=931, Invalid=216691, Unknown=0, NotChecked=0, Total=217622 [2022-03-04 00:28:26,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:28:26,103 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:28:26,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 467 states, 466 states have (on average 2.272532188841202) internal successors, (1059), 466 states have internal predecessors, (1059), 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) [2022-03-04 00:28:26,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:28:26,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:28:26,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-04 00:28:26,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-04 00:28:26,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-04 00:28:26,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2022-03-04 00:28:26,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-03-04 00:28:26,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 332 states. [2022-03-04 00:28:26,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 367 states. [2022-03-04 00:28:26,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 382 states. [2022-03-04 00:28:26,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:29:24,214 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2686 transitions and produced 2594 states. [2022-03-04 00:29:24,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:29:24,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:29:24,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-04 00:29:24,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-04 00:29:24,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-04 00:29:24,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-04 00:29:24,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-03-04 00:29:24,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 332 states. [2022-03-04 00:29:24,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 367 states. [2022-03-04 00:29:24,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2022-03-04 00:29:24,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 467 states. [2022-03-04 00:29:24,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-03-04 00:29:24,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-03-04 00:29:24,422 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:29:24,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:29:24,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1274389805, now seen corresponding path program 12 times [2022-03-04 00:29:24,422 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:29:24,422 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081337611] [2022-03-04 00:29:24,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:29:24,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:29:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:29:39,916 INFO L134 CoverageAnalysis]: Checked inductivity of 80683 backedges. 42489 proven. 38194 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:29:39,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:29:39,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081337611] [2022-03-04 00:29:39,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081337611] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:29:39,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492991807] [2022-03-04 00:29:39,916 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 00:29:39,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:29:39,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:29:39,917 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:29:39,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-04 00:29:40,522 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 143 check-sat command(s) [2022-03-04 00:29:40,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:29:40,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 2172 conjuncts, 262 conjunts are in the unsatisfiable core [2022-03-04 00:29:40,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:29:56,179 INFO L134 CoverageAnalysis]: Checked inductivity of 80683 backedges. 59361 proven. 21322 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:29:56,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:30:04,263 INFO L134 CoverageAnalysis]: Checked inductivity of 80683 backedges. 42489 proven. 38194 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:30:04,263 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492991807] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:30:04,264 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:30:04,264 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [263, 263, 263] total 478 [2022-03-04 00:30:04,264 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745141689] [2022-03-04 00:30:04,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:30:04,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 478 states [2022-03-04 00:30:04,266 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:30:04,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 478 interpolants. [2022-03-04 00:30:04,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43682, Invalid=184324, Unknown=0, NotChecked=0, Total=228006 [2022-03-04 00:30:04,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:30:04,281 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:30:04,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 478 states, 478 states have (on average 4.374476987447698) internal successors, (2091), 478 states have internal predecessors, (2091), 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) [2022-03-04 00:30:04,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:30:04,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:30:04,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-04 00:30:04,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-04 00:30:04,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-04 00:30:04,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2022-03-04 00:30:04,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-03-04 00:30:04,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 332 states. [2022-03-04 00:30:04,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 367 states. [2022-03-04 00:30:04,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 382 states. [2022-03-04 00:30:04,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 467 states. [2022-03-04 00:30:04,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:30:55,078 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3123 transitions and produced 2876 states. [2022-03-04 00:30:55,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:30:55,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:30:55,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-04 00:30:55,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-04 00:30:55,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-04 00:30:55,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-04 00:30:55,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-03-04 00:30:55,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 332 states. [2022-03-04 00:30:55,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 367 states. [2022-03-04 00:30:55,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2022-03-04 00:30:55,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 467 states. [2022-03-04 00:30:55,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 432 states. [2022-03-04 00:30:55,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-03-04 00:30:55,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-03-04 00:30:55,280 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 00:30:55,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:30:55,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1424644985, now seen corresponding path program 13 times [2022-03-04 00:30:55,280 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:30:55,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267177314] [2022-03-04 00:30:55,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:30:55,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:30:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:32:32,580 INFO L134 CoverageAnalysis]: Checked inductivity of 90383 backedges. 0 proven. 90377 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 00:32:32,580 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:32:32,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267177314] [2022-03-04 00:32:32,581 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267177314] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:32:32,581 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737635423] [2022-03-04 00:32:32,581 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 00:32:32,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:32:32,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:32:32,583 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 00:32:32,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-04 00:32:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:32:32,924 WARN L261 TraceCheckSpWp]: Trace formula consists of 2297 conjuncts, 1423 conjunts are in the unsatisfiable core [2022-03-04 00:32:32,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:32:36,548 INFO L134 CoverageAnalysis]: Checked inductivity of 90383 backedges. 0 proven. 90377 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 00:32:36,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:32:40,257 INFO L134 CoverageAnalysis]: Checked inductivity of 90383 backedges. 0 proven. 90377 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 00:32:40,257 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737635423] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:32:40,257 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:32:40,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [565, 565, 565] total 565 [2022-03-04 00:32:40,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096746417] [2022-03-04 00:32:40,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:32:40,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 567 states [2022-03-04 00:32:40,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:32:40,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 567 interpolants. [2022-03-04 00:32:40,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1131, Invalid=319791, Unknown=0, NotChecked=0, Total=320922 [2022-03-04 00:32:40,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:32:40,315 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:32:40,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 567 states, 566 states have (on average 2.2685512367491167) internal successors, (1284), 566 states have internal predecessors, (1284), 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) [2022-03-04 00:32:40,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-04 00:32:40,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 00:32:40,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-04 00:32:40,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-04 00:32:40,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-04 00:32:40,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2022-03-04 00:32:40,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-03-04 00:32:40,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 332 states. [2022-03-04 00:32:40,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 367 states. [2022-03-04 00:32:40,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 382 states. [2022-03-04 00:32:40,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 467 states. [2022-03-04 00:32:40,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 432 states. [2022-03-04 00:32:40,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-03-04 00:33:47,829 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 [2022-03-04 00:33:47,830 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 00:33:47,829 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 [2022-03-04 00:33:47,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-03-04 00:33:48,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:33:48,100 WARN L594 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-03-04 00:33:48,101 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-04 00:33:48,102 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-04 00:33:48,102 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-04 00:33:48,105 INFO L732 BasicCegarLoop]: Path program histogram: [13] [2022-03-04 00:33:48,107 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 00:33:48,107 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 00:33:48,108 INFO L202 PluginConnector]: Adding new model loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 12:33:48 BasicIcfg [2022-03-04 00:33:48,108 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 00:33:48,108 INFO L158 Benchmark]: Toolchain (without parser) took 707140.41ms. Allocated memory was 205.5MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 170.9MB in the beginning and 1.0GB in the end (delta: -856.5MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-03-04 00:33:48,108 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 205.5MB. Free memory is still 171.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 00:33:48,109 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.41ms. Allocated memory is still 205.5MB. Free memory was 170.9MB in the beginning and 169.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-04 00:33:48,109 INFO L158 Benchmark]: Boogie Preprocessor took 11.33ms. Allocated memory is still 205.5MB. Free memory was 169.2MB in the beginning and 168.3MB in the end (delta: 903.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 00:33:48,109 INFO L158 Benchmark]: RCFGBuilder took 199.93ms. Allocated memory is still 205.5MB. Free memory was 168.3MB in the beginning and 159.7MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-04 00:33:48,109 INFO L158 Benchmark]: TraceAbstraction took 706885.79ms. Allocated memory was 205.5MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 159.3MB in the beginning and 1.0GB in the end (delta: -868.1MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-03-04 00:33:48,110 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 0.14ms. Allocated memory is still 205.5MB. Free memory is still 171.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.41ms. Allocated memory is still 205.5MB. Free memory was 170.9MB in the beginning and 169.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.33ms. Allocated memory is still 205.5MB. Free memory was 169.2MB in the beginning and 168.3MB in the end (delta: 903.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 199.93ms. Allocated memory is still 205.5MB. Free memory was 168.3MB in the beginning and 159.7MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 706885.79ms. Allocated memory was 205.5MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 159.3MB in the beginning and 1.0GB in the end (delta: -868.1MB). Peak memory consumption was 1.5GB. 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: 47]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 43]: 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: 43]: 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 5 procedures, 41 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 706.8s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 13, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 315.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3374, 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: 0.5s SsaConstructionTime, 9.9s SatisfiabilityAnalysisTime, 377.5s InterpolantComputationTime, 17970 NumberOfCodeBlocks, 17970 NumberOfCodeBlocksAsserted, 529 NumberOfCheckSat, 26916 ConstructedInterpolants, 0 QuantifiedInterpolants, 152108 SizeOfPredicates, 32 NumberOfNonLiveVariables, 16053 ConjunctsInSsa, 5639 ConjunctsInUnsatCore, 39 InterpolantComputations, 0 PerfectInterpolantSequences, 347346/1263540 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