/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/showcase/NonAtomicIncrement_2Threads.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 02:15:49,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 02:15:49,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 02:15:49,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 02:15:49,096 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-FA-NoLbe.epf [2022-02-09 02:15:49,126 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 02:15:49,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 02:15:49,126 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 02:15:49,126 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 02:15:49,127 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 02:15:49,127 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 02:15:49,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 02:15:49,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 02:15:49,128 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 02:15:49,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 02:15:49,128 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 02:15:49,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 02:15:49,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 02:15:49,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 02:15:49,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 02:15:49,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 02:15:49,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 02:15:49,129 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 02:15:49,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 02:15:49,129 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 02:15:49,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 02:15:49,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 02:15:49,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 02:15:49,129 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 02:15:49,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 02:15:49,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 02:15:49,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 02:15:49,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 02:15:49,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 02:15:49,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 02:15:49,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 02:15:49,130 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 02:15:49,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 02:15:49,130 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 02:15:49,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 02:15:49,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 02:15:49,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 02:15:49,332 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-09 02:15:49,334 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-09 02:15:49,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/NonAtomicIncrement_2Threads.bpl [2022-02-09 02:15:49,335 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/NonAtomicIncrement_2Threads.bpl' [2022-02-09 02:15:49,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 02:15:49,364 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-09 02:15:49,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 02:15:49,365 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 02:15:49,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 02:15:49,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:49" (1/1) ... [2022-02-09 02:15:49,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:49" (1/1) ... [2022-02-09 02:15:49,384 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-09 02:15:49,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 02:15:49,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 02:15:49,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 02:15:49,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 02:15:49,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:49" (1/1) ... [2022-02-09 02:15:49,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:49" (1/1) ... [2022-02-09 02:15:49,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:49" (1/1) ... [2022-02-09 02:15:49,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:49" (1/1) ... [2022-02-09 02:15:49,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:49" (1/1) ... [2022-02-09 02:15:49,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:49" (1/1) ... [2022-02-09 02:15:49,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:49" (1/1) ... [2022-02-09 02:15:49,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 02:15:49,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 02:15:49,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 02:15:49,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 02:15:49,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:49" (1/1) ... [2022-02-09 02:15:49,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 02:15:49,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 02:15:49,432 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-09 02:15:49,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-09 02:15:49,462 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-09 02:15:49,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 02:15:49,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 02:15:49,463 INFO L124 BoogieDeclarations]: Specification and implementation of procedure IncrementProcess1 given in one single declaration [2022-02-09 02:15:49,463 INFO L130 BoogieDeclarations]: Found specification of procedure IncrementProcess1 [2022-02-09 02:15:49,463 INFO L138 BoogieDeclarations]: Found implementation of procedure IncrementProcess1 [2022-02-09 02:15:49,463 INFO L124 BoogieDeclarations]: Specification and implementation of procedure IncrementProcess2 given in one single declaration [2022-02-09 02:15:49,463 INFO L130 BoogieDeclarations]: Found specification of procedure IncrementProcess2 [2022-02-09 02:15:49,463 INFO L138 BoogieDeclarations]: Found implementation of procedure IncrementProcess2 [2022-02-09 02:15:49,464 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 02:15:49,495 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 02:15:49,497 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 02:15:49,554 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 02:15:49,559 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 02:15:49,559 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-09 02:15:49,560 INFO L202 PluginConnector]: Adding new model NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 02:15:49 BoogieIcfgContainer [2022-02-09 02:15:49,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 02:15:49,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 02:15:49,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 02:15:49,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 02:15:49,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:15:49" (1/2) ... [2022-02-09 02:15:49,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133515c9 and model type NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 02:15:49, skipping insertion in model container [2022-02-09 02:15:49,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 02:15:49" (2/2) ... [2022-02-09 02:15:49,566 INFO L111 eAbstractionObserver]: Analyzing ICFG NonAtomicIncrement_2Threads.bpl [2022-02-09 02:15:49,570 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 02:15:49,570 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 02:15:49,570 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 02:15:49,570 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 02:15:49,591 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,591 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,592 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,592 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,592 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,592 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,593 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,593 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,593 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,593 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,593 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,594 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,594 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,594 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,594 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,595 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,595 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,595 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,595 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,596 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,596 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,596 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,596 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,597 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,599 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,601 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 02:15:49,603 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-09 02:15:49,654 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 02:15:49,664 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=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 02:15:49,666 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-09 02:15:49,673 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 26 transitions, 74 flow [2022-02-09 02:15:49,697 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 92 states, 91 states have (on average 1.7802197802197801) internal successors, (162), 91 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:49,700 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 91 states have (on average 1.7802197802197801) internal successors, (162), 91 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:49,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-09 02:15:49,721 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:15:49,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 02:15:49,722 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 02:15:49,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:15:49,726 INFO L85 PathProgramCache]: Analyzing trace with hash 990761800, now seen corresponding path program 1 times [2022-02-09 02:15:49,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:15:49,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696338501] [2022-02-09 02:15:49,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:15:49,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:15:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:15:49,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:15:49,865 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:15:49,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696338501] [2022-02-09 02:15:49,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696338501] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 02:15:49,866 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 02:15:49,866 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 02:15:49,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581475475] [2022-02-09 02:15:49,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 02:15:49,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 02:15:49,874 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:15:49,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 02:15:49,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 02:15:49,913 INFO L87 Difference]: Start difference. First operand has 92 states, 91 states have (on average 1.7802197802197801) internal successors, (162), 91 states have internal predecessors, (162), 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) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:49,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:15:49,948 INFO L93 Difference]: Finished difference Result 84 states and 146 transitions. [2022-02-09 02:15:49,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 02:15:49,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) Word has length 20 [2022-02-09 02:15:49,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:15:49,974 INFO L225 Difference]: With dead ends: 84 [2022-02-09 02:15:49,974 INFO L226 Difference]: Without dead ends: 84 [2022-02-09 02:15:49,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 02:15:49,978 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 10 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 02:15:49,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 31 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 02:15:49,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-02-09 02:15:50,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-02-09 02:15:50,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 83 states have (on average 1.7590361445783131) internal successors, (146), 83 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:50,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 146 transitions. [2022-02-09 02:15:50,025 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 146 transitions. Word has length 20 [2022-02-09 02:15:50,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:15:50,026 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 146 transitions. [2022-02-09 02:15:50,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:50,026 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 146 transitions. [2022-02-09 02:15:50,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-09 02:15:50,027 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:15:50,027 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 02:15:50,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 02:15:50,028 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 02:15:50,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:15:50,028 INFO L85 PathProgramCache]: Analyzing trace with hash -207301178, now seen corresponding path program 1 times [2022-02-09 02:15:50,028 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:15:50,029 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147796799] [2022-02-09 02:15:50,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:15:50,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:15:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:15:50,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:15:50,223 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:15:50,223 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147796799] [2022-02-09 02:15:50,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147796799] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 02:15:50,224 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 02:15:50,224 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-09 02:15:50,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937725833] [2022-02-09 02:15:50,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 02:15:50,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 02:15:50,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:15:50,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 02:15:50,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-02-09 02:15:50,226 INFO L87 Difference]: Start difference. First operand 84 states and 146 transitions. Second operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:50,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:15:50,688 INFO L93 Difference]: Finished difference Result 375 states and 608 transitions. [2022-02-09 02:15:50,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 02:15:50,690 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 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) Word has length 20 [2022-02-09 02:15:50,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:15:50,697 INFO L225 Difference]: With dead ends: 375 [2022-02-09 02:15:50,697 INFO L226 Difference]: Without dead ends: 291 [2022-02-09 02:15:50,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=270, Invalid=542, Unknown=0, NotChecked=0, Total=812 [2022-02-09 02:15:50,704 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 103 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-09 02:15:50,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 134 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-09 02:15:50,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-02-09 02:15:50,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 114. [2022-02-09 02:15:50,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 113 states have (on average 1.761061946902655) internal successors, (199), 113 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:50,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 199 transitions. [2022-02-09 02:15:50,723 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 199 transitions. Word has length 20 [2022-02-09 02:15:50,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:15:50,723 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 199 transitions. [2022-02-09 02:15:50,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:50,723 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 199 transitions. [2022-02-09 02:15:50,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-09 02:15:50,724 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:15:50,724 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 02:15:50,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 02:15:50,725 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 02:15:50,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:15:50,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1261365540, now seen corresponding path program 2 times [2022-02-09 02:15:50,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:15:50,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419849807] [2022-02-09 02:15:50,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:15:50,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:15:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:15:50,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:15:50,833 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:15:50,833 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419849807] [2022-02-09 02:15:50,833 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419849807] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 02:15:50,833 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 02:15:50,834 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 02:15:50,834 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906837235] [2022-02-09 02:15:50,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 02:15:50,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-09 02:15:50,836 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:15:50,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-09 02:15:50,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-02-09 02:15:50,838 INFO L87 Difference]: Start difference. First operand 114 states and 199 transitions. Second operand has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:51,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:15:51,133 INFO L93 Difference]: Finished difference Result 336 states and 533 transitions. [2022-02-09 02:15:51,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-09 02:15:51,134 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) Word has length 20 [2022-02-09 02:15:51,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:15:51,136 INFO L225 Difference]: With dead ends: 336 [2022-02-09 02:15:51,136 INFO L226 Difference]: Without dead ends: 266 [2022-02-09 02:15:51,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=209, Invalid=391, Unknown=0, NotChecked=0, Total=600 [2022-02-09 02:15:51,142 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 124 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-09 02:15:51,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 86 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-09 02:15:51,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-02-09 02:15:51,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 108. [2022-02-09 02:15:51,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 1.7289719626168225) internal successors, (185), 107 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:51,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 185 transitions. [2022-02-09 02:15:51,161 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 185 transitions. Word has length 20 [2022-02-09 02:15:51,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:15:51,162 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 185 transitions. [2022-02-09 02:15:51,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:51,162 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 185 transitions. [2022-02-09 02:15:51,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-09 02:15:51,163 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:15:51,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 02:15:51,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-09 02:15:51,163 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 02:15:51,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:15:51,164 INFO L85 PathProgramCache]: Analyzing trace with hash 257033602, now seen corresponding path program 3 times [2022-02-09 02:15:51,164 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:15:51,164 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973758718] [2022-02-09 02:15:51,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:15:51,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:15:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:15:51,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:15:51,234 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:15:51,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973758718] [2022-02-09 02:15:51,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973758718] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 02:15:51,234 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 02:15:51,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-09 02:15:51,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22660617] [2022-02-09 02:15:51,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 02:15:51,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 02:15:51,235 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:15:51,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 02:15:51,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-02-09 02:15:51,235 INFO L87 Difference]: Start difference. First operand 108 states and 185 transitions. Second operand has 11 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:51,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:15:51,454 INFO L93 Difference]: Finished difference Result 316 states and 497 transitions. [2022-02-09 02:15:51,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-09 02:15:51,455 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) Word has length 20 [2022-02-09 02:15:51,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:15:51,456 INFO L225 Difference]: With dead ends: 316 [2022-02-09 02:15:51,456 INFO L226 Difference]: Without dead ends: 278 [2022-02-09 02:15:51,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=244, Unknown=0, NotChecked=0, Total=380 [2022-02-09 02:15:51,457 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 112 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 02:15:51,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 77 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 02:15:51,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-02-09 02:15:51,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 131. [2022-02-09 02:15:51,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 130 states have (on average 1.7) internal successors, (221), 130 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:51,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 221 transitions. [2022-02-09 02:15:51,462 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 221 transitions. Word has length 20 [2022-02-09 02:15:51,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:15:51,462 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 221 transitions. [2022-02-09 02:15:51,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:51,463 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 221 transitions. [2022-02-09 02:15:51,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-09 02:15:51,463 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:15:51,463 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 02:15:51,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-09 02:15:51,464 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 02:15:51,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:15:51,464 INFO L85 PathProgramCache]: Analyzing trace with hash 920915654, now seen corresponding path program 4 times [2022-02-09 02:15:51,464 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:15:51,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396471502] [2022-02-09 02:15:51,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:15:51,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:15:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:15:51,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:15:51,531 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:15:51,532 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396471502] [2022-02-09 02:15:51,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396471502] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 02:15:51,532 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 02:15:51,532 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 02:15:51,532 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234629964] [2022-02-09 02:15:51,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 02:15:51,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-09 02:15:51,532 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:15:51,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-09 02:15:51,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-02-09 02:15:51,533 INFO L87 Difference]: Start difference. First operand 131 states and 221 transitions. Second operand has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:51,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:15:51,761 INFO L93 Difference]: Finished difference Result 288 states and 451 transitions. [2022-02-09 02:15:51,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 02:15:51,762 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) Word has length 20 [2022-02-09 02:15:51,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:15:51,764 INFO L225 Difference]: With dead ends: 288 [2022-02-09 02:15:51,764 INFO L226 Difference]: Without dead ends: 271 [2022-02-09 02:15:51,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=362, Unknown=0, NotChecked=0, Total=552 [2022-02-09 02:15:51,765 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 108 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 02:15:51,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 88 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 02:15:51,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-02-09 02:15:51,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 131. [2022-02-09 02:15:51,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 130 states have (on average 1.6692307692307693) internal successors, (217), 130 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:51,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 217 transitions. [2022-02-09 02:15:51,778 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 217 transitions. Word has length 20 [2022-02-09 02:15:51,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:15:51,778 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 217 transitions. [2022-02-09 02:15:51,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:51,778 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 217 transitions. [2022-02-09 02:15:51,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-09 02:15:51,779 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:15:51,779 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 02:15:51,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-09 02:15:51,780 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 02:15:51,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:15:51,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1757193636, now seen corresponding path program 5 times [2022-02-09 02:15:51,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:15:51,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251079221] [2022-02-09 02:15:51,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:15:51,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:15:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:15:51,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:15:51,837 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:15:51,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251079221] [2022-02-09 02:15:51,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251079221] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 02:15:51,837 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 02:15:51,837 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-09 02:15:51,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186135690] [2022-02-09 02:15:51,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 02:15:51,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 02:15:51,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:15:51,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 02:15:51,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-02-09 02:15:51,839 INFO L87 Difference]: Start difference. First operand 131 states and 217 transitions. Second operand has 11 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:52,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:15:52,047 INFO L93 Difference]: Finished difference Result 263 states and 416 transitions. [2022-02-09 02:15:52,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 02:15:52,048 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) Word has length 20 [2022-02-09 02:15:52,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:15:52,049 INFO L225 Difference]: With dead ends: 263 [2022-02-09 02:15:52,049 INFO L226 Difference]: Without dead ends: 227 [2022-02-09 02:15:52,049 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2022-02-09 02:15:52,050 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 74 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 02:15:52,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 75 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 02:15:52,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-02-09 02:15:52,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 110. [2022-02-09 02:15:52,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.7064220183486238) internal successors, (186), 109 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:52,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 186 transitions. [2022-02-09 02:15:52,054 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 186 transitions. Word has length 20 [2022-02-09 02:15:52,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:15:52,054 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 186 transitions. [2022-02-09 02:15:52,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:52,054 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 186 transitions. [2022-02-09 02:15:52,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-09 02:15:52,055 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:15:52,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 02:15:52,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-09 02:15:52,056 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 02:15:52,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:15:52,056 INFO L85 PathProgramCache]: Analyzing trace with hash 192400096, now seen corresponding path program 6 times [2022-02-09 02:15:52,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:15:52,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538914555] [2022-02-09 02:15:52,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:15:52,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:15:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:15:52,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:15:52,112 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:15:52,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538914555] [2022-02-09 02:15:52,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538914555] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 02:15:52,112 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 02:15:52,112 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-09 02:15:52,113 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770583621] [2022-02-09 02:15:52,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 02:15:52,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-09 02:15:52,114 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:15:52,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-09 02:15:52,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-02-09 02:15:52,115 INFO L87 Difference]: Start difference. First operand 110 states and 186 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:52,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:15:52,263 INFO L93 Difference]: Finished difference Result 190 states and 314 transitions. [2022-02-09 02:15:52,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 02:15:52,264 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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) Word has length 20 [2022-02-09 02:15:52,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:15:52,264 INFO L225 Difference]: With dead ends: 190 [2022-02-09 02:15:52,264 INFO L226 Difference]: Without dead ends: 165 [2022-02-09 02:15:52,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2022-02-09 02:15:52,266 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 49 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 02:15:52,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 129 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 02:15:52,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-02-09 02:15:52,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 115. [2022-02-09 02:15:52,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 114 states have (on average 1.6842105263157894) internal successors, (192), 114 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:52,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 192 transitions. [2022-02-09 02:15:52,271 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 192 transitions. Word has length 20 [2022-02-09 02:15:52,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:15:52,272 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 192 transitions. [2022-02-09 02:15:52,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:52,272 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 192 transitions. [2022-02-09 02:15:52,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-09 02:15:52,275 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:15:52,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 02:15:52,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-09 02:15:52,276 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 02:15:52,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:15:52,279 INFO L85 PathProgramCache]: Analyzing trace with hash 856282148, now seen corresponding path program 7 times [2022-02-09 02:15:52,279 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:15:52,280 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962472934] [2022-02-09 02:15:52,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:15:52,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:15:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:15:52,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:15:52,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:15:52,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962472934] [2022-02-09 02:15:52,351 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962472934] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 02:15:52,351 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 02:15:52,351 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-09 02:15:52,351 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776032197] [2022-02-09 02:15:52,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 02:15:52,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 02:15:52,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:15:52,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 02:15:52,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-02-09 02:15:52,352 INFO L87 Difference]: Start difference. First operand 115 states and 192 transitions. Second operand has 11 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:52,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:15:52,507 INFO L93 Difference]: Finished difference Result 175 states and 285 transitions. [2022-02-09 02:15:52,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 02:15:52,507 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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) Word has length 20 [2022-02-09 02:15:52,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:15:52,508 INFO L225 Difference]: With dead ends: 175 [2022-02-09 02:15:52,508 INFO L226 Difference]: Without dead ends: 149 [2022-02-09 02:15:52,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=222, Unknown=0, NotChecked=0, Total=342 [2022-02-09 02:15:52,509 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 88 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 02:15:52,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 72 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 02:15:52,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-02-09 02:15:52,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 104. [2022-02-09 02:15:52,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.6601941747572815) internal successors, (171), 103 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:52,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 171 transitions. [2022-02-09 02:15:52,513 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 171 transitions. Word has length 20 [2022-02-09 02:15:52,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:15:52,514 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 171 transitions. [2022-02-09 02:15:52,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:52,514 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 171 transitions. [2022-02-09 02:15:52,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-09 02:15:52,514 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:15:52,514 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 02:15:52,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-09 02:15:52,515 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 02:15:52,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:15:52,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1692560130, now seen corresponding path program 8 times [2022-02-09 02:15:52,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:15:52,515 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037125124] [2022-02-09 02:15:52,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:15:52,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:15:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:15:52,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:15:52,557 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:15:52,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037125124] [2022-02-09 02:15:52,557 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037125124] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 02:15:52,557 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 02:15:52,557 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-09 02:15:52,557 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4161477] [2022-02-09 02:15:52,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 02:15:52,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-09 02:15:52,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:15:52,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-09 02:15:52,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-02-09 02:15:52,558 INFO L87 Difference]: Start difference. First operand 104 states and 171 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:52,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:15:52,675 INFO L93 Difference]: Finished difference Result 161 states and 256 transitions. [2022-02-09 02:15:52,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-09 02:15:52,675 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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) Word has length 20 [2022-02-09 02:15:52,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:15:52,676 INFO L225 Difference]: With dead ends: 161 [2022-02-09 02:15:52,676 INFO L226 Difference]: Without dead ends: 134 [2022-02-09 02:15:52,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2022-02-09 02:15:52,677 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 49 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 02:15:52,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 70 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 02:15:52,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-02-09 02:15:52,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 92. [2022-02-09 02:15:52,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.6483516483516483) internal successors, (150), 91 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:52,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 150 transitions. [2022-02-09 02:15:52,681 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 150 transitions. Word has length 20 [2022-02-09 02:15:52,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:15:52,681 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 150 transitions. [2022-02-09 02:15:52,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:52,681 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 150 transitions. [2022-02-09 02:15:52,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-09 02:15:52,682 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:15:52,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 02:15:52,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-09 02:15:52,682 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 02:15:52,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:15:52,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1886458026, now seen corresponding path program 9 times [2022-02-09 02:15:52,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:15:52,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260701614] [2022-02-09 02:15:52,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:15:52,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:15:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 02:15:52,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 02:15:52,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 02:15:52,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260701614] [2022-02-09 02:15:52,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260701614] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 02:15:52,755 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 02:15:52,755 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-09 02:15:52,756 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068800496] [2022-02-09 02:15:52,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 02:15:52,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-09 02:15:52,756 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 02:15:52,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-09 02:15:52,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-02-09 02:15:52,757 INFO L87 Difference]: Start difference. First operand 92 states and 150 transitions. Second operand has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:52,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 02:15:52,944 INFO L93 Difference]: Finished difference Result 209 states and 332 transitions. [2022-02-09 02:15:52,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-09 02:15:52,944 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) Word has length 20 [2022-02-09 02:15:52,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 02:15:52,945 INFO L225 Difference]: With dead ends: 209 [2022-02-09 02:15:52,945 INFO L226 Difference]: Without dead ends: 130 [2022-02-09 02:15:52,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=172, Invalid=334, Unknown=0, NotChecked=0, Total=506 [2022-02-09 02:15:52,946 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 83 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 02:15:52,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 132 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 02:15:52,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-02-09 02:15:52,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 94. [2022-02-09 02:15:52,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.6344086021505377) internal successors, (152), 93 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:52,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 152 transitions. [2022-02-09 02:15:52,950 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 152 transitions. Word has length 20 [2022-02-09 02:15:52,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 02:15:52,951 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 152 transitions. [2022-02-09 02:15:52,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 02:15:52,951 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 152 transitions. [2022-02-09 02:15:52,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-09 02:15:52,952 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 02:15:52,952 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 02:15:52,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-09 02:15:52,953 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-09 02:15:52,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 02:15:52,953 INFO L85 PathProgramCache]: Analyzing trace with hash -77526904, now seen corresponding path program 10 times [2022-02-09 02:15:52,953 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 02:15:52,953 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341468145] [2022-02-09 02:15:52,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 02:15:52,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 02:15:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 02:15:52,969 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-09 02:15:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-09 02:15:52,983 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-09 02:15:52,984 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-09 02:15:52,984 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-02-09 02:15:52,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-09 02:15:52,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-09 02:15:52,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-09 02:15:52,989 INFO L732 BasicCegarLoop]: Path program histogram: [10, 1] [2022-02-09 02:15:52,992 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-09 02:15:52,992 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 02:15:52,999 INFO L202 PluginConnector]: Adding new model NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 02:15:52 BasicIcfg [2022-02-09 02:15:52,999 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 02:15:53,000 INFO L158 Benchmark]: Toolchain (without parser) took 3635.49ms. Allocated memory was 175.1MB in the beginning and 232.8MB in the end (delta: 57.7MB). Free memory was 132.7MB in the beginning and 131.2MB in the end (delta: 1.5MB). Peak memory consumption was 60.0MB. Max. memory is 8.0GB. [2022-02-09 02:15:53,000 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 175.1MB. Free memory is still 133.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 02:15:53,000 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.03ms. Allocated memory is still 175.1MB. Free memory was 132.6MB in the beginning and 131.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 02:15:53,000 INFO L158 Benchmark]: Boogie Preprocessor took 10.98ms. Allocated memory is still 175.1MB. Free memory was 131.0MB in the beginning and 130.3MB in the end (delta: 778.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 02:15:53,000 INFO L158 Benchmark]: RCFGBuilder took 162.16ms. Allocated memory is still 175.1MB. Free memory was 130.2MB in the beginning and 121.8MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-09 02:15:53,000 INFO L158 Benchmark]: TraceAbstraction took 3437.60ms. Allocated memory was 175.1MB in the beginning and 232.8MB in the end (delta: 57.7MB). Free memory was 121.3MB in the beginning and 131.2MB in the end (delta: -10.0MB). Peak memory consumption was 48.5MB. Max. memory is 8.0GB. [2022-02-09 02:15:53,001 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 0.13ms. Allocated memory is still 175.1MB. Free memory is still 133.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.03ms. Allocated memory is still 175.1MB. Free memory was 132.6MB in the beginning and 131.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.98ms. Allocated memory is still 175.1MB. Free memory was 131.0MB in the beginning and 130.3MB in the end (delta: 778.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 162.16ms. Allocated memory is still 175.1MB. Free memory was 130.2MB in the beginning and 121.8MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 3437.60ms. Allocated memory was 175.1MB in the beginning and 232.8MB in the end (delta: 57.7MB). Free memory was 121.3MB in the beginning and 131.2MB in the end (delta: -10.0MB). Peak memory consumption was 48.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - CounterExampleResult [Line: 28]: assertion can be violated assertion can be violated We found a FailurePath: [L22] 0 x := 0; VAL [x=0] [L24] FORK 0 fork 1 IncrementProcess1(); VAL [x=0] [L38] 1 localx := x; VAL [localx=0, x=0] [L25] FORK 0 fork 2 IncrementProcess2(); VAL [localx=0, x=0] [L54] 2 localx := x; VAL [localx=0, localx=0, x=0] [L55] 2 x := localx + 1; VAL [localx=0, localx=0, x=1] [L57] 2 localx := x; VAL [localx=0, localx=1, x=1] [L58] 2 x := localx + 1; VAL [localx=0, localx=1, x=2] [L39] 1 x := localx + 1; VAL [localx=0, localx=1, x=1] [L60] 2 localx := x; VAL [localx=0, localx=1, x=1] [L41] 1 localx := x; VAL [localx=1, localx=1, x=1] [L42] 1 x := localx + 1; VAL [localx=1, localx=1, x=2] [L44] 1 localx := x; VAL [localx=2, localx=1, x=2] [L45] 1 x := localx + 1; VAL [localx=2, localx=1, x=3] [L61] 2 x := localx + 1; VAL [localx=2, localx=1, x=2] [L26] JOIN 1 join 1; VAL [localx=2, localx=1, x=2] [L27] JOIN 2 join 2; VAL [localx=2, localx=1, x=2] [L28] 0 assert x >= 3; VAL [localx=2, localx=1, x=2] - UnprovableResult [Line: 24]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 43 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 800 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 800 mSDsluCounter, 894 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1016 mSDsCounter, 471 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2609 IncrementalHoareTripleChecker+Invalid, 3080 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 471 mSolverCounterUnsat, 281 mSDtfsCounter, 2609 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=4, InterpolantAutomatonStates: 130, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 912 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 220 NumberOfCodeBlocks, 220 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 190 ConstructedInterpolants, 0 QuantifiedInterpolants, 548 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 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 proved your program to be incorrect! [2022-02-09 02:15:53,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...