/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-820ea7a [2022-02-18 15:52:37,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-18 15:52:37,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-18 15:52:37,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-18 15:52:37,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-18 15:52:37,969 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-18 15:52:37,971 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-18 15:52:37,972 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 [2022-02-18 15:52:37,996 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-18 15:52:37,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-18 15:52:37,996 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-18 15:52:37,997 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-18 15:52:37,997 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-18 15:52:37,997 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-18 15:52:37,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-18 15:52:37,998 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-18 15:52:37,998 INFO L138 SettingsManager]: * Use SBE=true [2022-02-18 15:52:37,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-18 15:52:37,998 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-18 15:52:37,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-18 15:52:37,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-18 15:52:37,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-18 15:52:37,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-18 15:52:37,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-18 15:52:37,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-18 15:52:38,002 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-18 15:52:38,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-18 15:52:38,002 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-18 15:52:38,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-18 15:52:38,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-18 15:52:38,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-18 15:52:38,003 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-18 15:52:38,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-18 15:52:38,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 15:52:38,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-18 15:52:38,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-18 15:52:38,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-18 15:52:38,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-18 15:52:38,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-18 15:52:38,004 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-18 15:52:38,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-18 15:52:38,005 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-18 15:52:38,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-18 15:52:38,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-18 15:52:38,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-18 15:52:38,243 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-18 15:52:38,244 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-18 15:52:38,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/NonAtomicIncrement_2Threads.bpl [2022-02-18 15:52:38,245 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/NonAtomicIncrement_2Threads.bpl' [2022-02-18 15:52:38,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-18 15:52:38,280 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-18 15:52:38,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-18 15:52:38,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-18 15:52:38,281 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-18 15:52:38,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:38" (1/1) ... [2022-02-18 15:52:38,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:38" (1/1) ... [2022-02-18 15:52:38,311 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-18 15:52:38,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-18 15:52:38,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-18 15:52:38,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-18 15:52:38,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-18 15:52:38,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:38" (1/1) ... [2022-02-18 15:52:38,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:38" (1/1) ... [2022-02-18 15:52:38,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:38" (1/1) ... [2022-02-18 15:52:38,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:38" (1/1) ... [2022-02-18 15:52:38,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:38" (1/1) ... [2022-02-18 15:52:38,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:38" (1/1) ... [2022-02-18 15:52:38,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:38" (1/1) ... [2022-02-18 15:52:38,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-18 15:52:38,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-18 15:52:38,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-18 15:52:38,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-18 15:52:38,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:38" (1/1) ... [2022-02-18 15:52:38,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 15:52:38,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 15:52:38,365 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) [2022-02-18 15:52:38,372 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 [2022-02-18 15:52:38,400 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-18 15:52:38,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-18 15:52:38,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-18 15:52:38,401 INFO L124 BoogieDeclarations]: Specification and implementation of procedure IncrementProcess1 given in one single declaration [2022-02-18 15:52:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure IncrementProcess1 [2022-02-18 15:52:38,401 INFO L138 BoogieDeclarations]: Found implementation of procedure IncrementProcess1 [2022-02-18 15:52:38,401 INFO L124 BoogieDeclarations]: Specification and implementation of procedure IncrementProcess2 given in one single declaration [2022-02-18 15:52:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure IncrementProcess2 [2022-02-18 15:52:38,401 INFO L138 BoogieDeclarations]: Found implementation of procedure IncrementProcess2 [2022-02-18 15:52:38,404 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-18 15:52:38,437 INFO L234 CfgBuilder]: Building ICFG [2022-02-18 15:52:38,438 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-18 15:52:38,524 INFO L275 CfgBuilder]: Performing block encoding [2022-02-18 15:52:38,530 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-18 15:52:38,530 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-18 15:52:38,535 INFO L202 PluginConnector]: Adding new model NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 03:52:38 BoogieIcfgContainer [2022-02-18 15:52:38,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-18 15:52:38,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-18 15:52:38,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-18 15:52:38,556 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-18 15:52:38,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:38" (1/2) ... [2022-02-18 15:52:38,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54cb85c0 and model type NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 03:52:38, skipping insertion in model container [2022-02-18 15:52:38,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 03:52:38" (2/2) ... [2022-02-18 15:52:38,558 INFO L111 eAbstractionObserver]: Analyzing ICFG NonAtomicIncrement_2Threads.bpl [2022-02-18 15:52:38,562 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-18 15:52:38,562 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-18 15:52:38,562 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-18 15:52:38,562 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-18 15:52:38,593 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,594 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,594 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,594 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,594 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,595 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,595 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,595 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,596 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,596 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,596 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,596 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,597 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,597 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,597 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,598 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,598 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,598 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,599 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,599 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,599 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,599 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,600 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,600 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,603 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,604 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 15:52:38,606 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-18 15:52:38,666 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-18 15:52:38,672 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-18 15:52:38,672 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-18 15:52:38,679 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 26 transitions, 74 flow [2022-02-18 15:52:38,703 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) [2022-02-18 15:52:38,705 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) [2022-02-18 15:52:38,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-18 15:52:38,712 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 15:52:38,712 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] [2022-02-18 15:52:38,713 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 15:52:38,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 15:52:38,717 INFO L85 PathProgramCache]: Analyzing trace with hash 990761800, now seen corresponding path program 1 times [2022-02-18 15:52:38,724 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 15:52:38,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967170233] [2022-02-18 15:52:38,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 15:52:38,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 15:52:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 15:52:38,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 15:52:38,858 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 15:52:38,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967170233] [2022-02-18 15:52:38,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967170233] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 15:52:38,859 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 15:52:38,859 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 15:52:38,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248272646] [2022-02-18 15:52:38,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 15:52:38,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 15:52:38,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 15:52:38,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 15:52:38,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 15:52:38,889 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) [2022-02-18 15:52:38,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 15:52:38,911 INFO L93 Difference]: Finished difference Result 84 states and 146 transitions. [2022-02-18 15:52:38,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 15:52:38,912 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 [2022-02-18 15:52:38,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 15:52:38,919 INFO L225 Difference]: With dead ends: 84 [2022-02-18 15:52:38,919 INFO L226 Difference]: Without dead ends: 84 [2022-02-18 15:52:38,921 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 [2022-02-18 15:52:38,924 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 [2022-02-18 15:52:38,925 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] [2022-02-18 15:52:38,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-02-18 15:52:38,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-02-18 15:52:38,955 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) [2022-02-18 15:52:38,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 146 transitions. [2022-02-18 15:52:38,958 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 146 transitions. Word has length 20 [2022-02-18 15:52:38,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 15:52:38,958 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 146 transitions. [2022-02-18 15:52:38,958 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) [2022-02-18 15:52:38,959 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 146 transitions. [2022-02-18 15:52:38,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-18 15:52:38,960 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 15:52:38,961 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] [2022-02-18 15:52:38,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-18 15:52:38,961 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 15:52:38,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 15:52:38,962 INFO L85 PathProgramCache]: Analyzing trace with hash -207301178, now seen corresponding path program 1 times [2022-02-18 15:52:38,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 15:52:38,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136418968] [2022-02-18 15:52:38,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 15:52:38,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 15:52:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 15:52:39,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 15:52:39,162 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 15:52:39,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136418968] [2022-02-18 15:52:39,163 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136418968] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 15:52:39,163 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 15:52:39,163 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-18 15:52:39,163 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56816106] [2022-02-18 15:52:39,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 15:52:39,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-18 15:52:39,165 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 15:52:39,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-18 15:52:39,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-02-18 15:52:39,167 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) [2022-02-18 15:52:39,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 15:52:39,613 INFO L93 Difference]: Finished difference Result 375 states and 608 transitions. [2022-02-18 15:52:39,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-18 15:52:39,615 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 [2022-02-18 15:52:39,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 15:52:39,622 INFO L225 Difference]: With dead ends: 375 [2022-02-18 15:52:39,623 INFO L226 Difference]: Without dead ends: 291 [2022-02-18 15:52:39,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=270, Invalid=542, Unknown=0, NotChecked=0, Total=812 [2022-02-18 15:52:39,632 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 [2022-02-18 15:52:39,633 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] [2022-02-18 15:52:39,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-02-18 15:52:39,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 114. [2022-02-18 15:52:39,652 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) [2022-02-18 15:52:39,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 199 transitions. [2022-02-18 15:52:39,654 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 199 transitions. Word has length 20 [2022-02-18 15:52:39,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 15:52:39,654 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 199 transitions. [2022-02-18 15:52:39,654 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) [2022-02-18 15:52:39,654 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 199 transitions. [2022-02-18 15:52:39,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-18 15:52:39,661 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 15:52:39,661 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] [2022-02-18 15:52:39,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-18 15:52:39,662 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 15:52:39,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 15:52:39,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1261365540, now seen corresponding path program 2 times [2022-02-18 15:52:39,665 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 15:52:39,665 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182766289] [2022-02-18 15:52:39,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 15:52:39,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 15:52:39,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 15:52:39,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 15:52:39,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 15:52:39,795 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182766289] [2022-02-18 15:52:39,795 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182766289] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 15:52:39,795 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 15:52:39,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 15:52:39,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440943833] [2022-02-18 15:52:39,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 15:52:39,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-18 15:52:39,797 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 15:52:39,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-18 15:52:39,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-02-18 15:52:39,798 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) [2022-02-18 15:52:40,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 15:52:40,109 INFO L93 Difference]: Finished difference Result 336 states and 533 transitions. [2022-02-18 15:52:40,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-18 15:52:40,111 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 [2022-02-18 15:52:40,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 15:52:40,112 INFO L225 Difference]: With dead ends: 336 [2022-02-18 15:52:40,112 INFO L226 Difference]: Without dead ends: 266 [2022-02-18 15:52:40,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=209, Invalid=391, Unknown=0, NotChecked=0, Total=600 [2022-02-18 15:52:40,115 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 [2022-02-18 15:52:40,115 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] [2022-02-18 15:52:40,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-02-18 15:52:40,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 108. [2022-02-18 15:52:40,124 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) [2022-02-18 15:52:40,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 185 transitions. [2022-02-18 15:52:40,125 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 185 transitions. Word has length 20 [2022-02-18 15:52:40,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 15:52:40,125 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 185 transitions. [2022-02-18 15:52:40,125 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) [2022-02-18 15:52:40,125 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 185 transitions. [2022-02-18 15:52:40,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-18 15:52:40,126 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 15:52:40,126 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] [2022-02-18 15:52:40,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-18 15:52:40,127 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 15:52:40,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 15:52:40,127 INFO L85 PathProgramCache]: Analyzing trace with hash 257033602, now seen corresponding path program 3 times [2022-02-18 15:52:40,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 15:52:40,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732463359] [2022-02-18 15:52:40,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 15:52:40,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 15:52:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 15:52:40,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 15:52:40,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 15:52:40,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732463359] [2022-02-18 15:52:40,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732463359] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 15:52:40,200 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 15:52:40,200 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-18 15:52:40,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985944528] [2022-02-18 15:52:40,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 15:52:40,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 15:52:40,214 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 15:52:40,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 15:52:40,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-02-18 15:52:40,216 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) [2022-02-18 15:52:40,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 15:52:40,453 INFO L93 Difference]: Finished difference Result 316 states and 497 transitions. [2022-02-18 15:52:40,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 15:52:40,453 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 [2022-02-18 15:52:40,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 15:52:40,455 INFO L225 Difference]: With dead ends: 316 [2022-02-18 15:52:40,455 INFO L226 Difference]: Without dead ends: 278 [2022-02-18 15:52:40,455 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 [2022-02-18 15:52:40,456 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 [2022-02-18 15:52:40,456 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] [2022-02-18 15:52:40,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-02-18 15:52:40,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 131. [2022-02-18 15:52:40,464 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) [2022-02-18 15:52:40,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 221 transitions. [2022-02-18 15:52:40,465 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 221 transitions. Word has length 20 [2022-02-18 15:52:40,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 15:52:40,465 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 221 transitions. [2022-02-18 15:52:40,466 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) [2022-02-18 15:52:40,466 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 221 transitions. [2022-02-18 15:52:40,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-18 15:52:40,467 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 15:52:40,467 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] [2022-02-18 15:52:40,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-18 15:52:40,467 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 15:52:40,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 15:52:40,468 INFO L85 PathProgramCache]: Analyzing trace with hash 920915654, now seen corresponding path program 4 times [2022-02-18 15:52:40,468 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 15:52:40,468 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638203506] [2022-02-18 15:52:40,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 15:52:40,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 15:52:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 15:52:40,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 15:52:40,560 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 15:52:40,560 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638203506] [2022-02-18 15:52:40,560 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638203506] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 15:52:40,560 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 15:52:40,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 15:52:40,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628177210] [2022-02-18 15:52:40,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 15:52:40,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-18 15:52:40,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 15:52:40,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-18 15:52:40,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-02-18 15:52:40,562 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) [2022-02-18 15:52:40,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 15:52:40,810 INFO L93 Difference]: Finished difference Result 288 states and 451 transitions. [2022-02-18 15:52:40,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-18 15:52:40,811 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 [2022-02-18 15:52:40,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 15:52:40,812 INFO L225 Difference]: With dead ends: 288 [2022-02-18 15:52:40,812 INFO L226 Difference]: Without dead ends: 271 [2022-02-18 15:52:40,813 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 [2022-02-18 15:52:40,813 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 [2022-02-18 15:52:40,814 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] [2022-02-18 15:52:40,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-02-18 15:52:40,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 131. [2022-02-18 15:52:40,820 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) [2022-02-18 15:52:40,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 217 transitions. [2022-02-18 15:52:40,821 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 217 transitions. Word has length 20 [2022-02-18 15:52:40,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 15:52:40,822 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 217 transitions. [2022-02-18 15:52:40,822 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) [2022-02-18 15:52:40,822 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 217 transitions. [2022-02-18 15:52:40,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-18 15:52:40,823 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 15:52:40,823 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] [2022-02-18 15:52:40,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-18 15:52:40,823 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 15:52:40,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 15:52:40,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1757193636, now seen corresponding path program 5 times [2022-02-18 15:52:40,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 15:52:40,824 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182956315] [2022-02-18 15:52:40,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 15:52:40,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 15:52:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 15:52:40,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 15:52:40,903 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 15:52:40,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182956315] [2022-02-18 15:52:40,903 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182956315] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 15:52:40,903 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 15:52:40,903 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-18 15:52:40,904 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132226275] [2022-02-18 15:52:40,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 15:52:40,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 15:52:40,904 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 15:52:40,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 15:52:40,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-02-18 15:52:40,905 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) [2022-02-18 15:52:41,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 15:52:41,129 INFO L93 Difference]: Finished difference Result 263 states and 416 transitions. [2022-02-18 15:52:41,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 15:52:41,129 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 [2022-02-18 15:52:41,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 15:52:41,130 INFO L225 Difference]: With dead ends: 263 [2022-02-18 15:52:41,130 INFO L226 Difference]: Without dead ends: 227 [2022-02-18 15:52:41,131 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 [2022-02-18 15:52:41,131 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 15:52:41,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 75 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 15:52:41,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-02-18 15:52:41,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 110. [2022-02-18 15:52:41,136 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) [2022-02-18 15:52:41,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 186 transitions. [2022-02-18 15:52:41,137 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 186 transitions. Word has length 20 [2022-02-18 15:52:41,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 15:52:41,137 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 186 transitions. [2022-02-18 15:52:41,137 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) [2022-02-18 15:52:41,137 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 186 transitions. [2022-02-18 15:52:41,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-18 15:52:41,138 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 15:52:41,138 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] [2022-02-18 15:52:41,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-18 15:52:41,138 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 15:52:41,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 15:52:41,139 INFO L85 PathProgramCache]: Analyzing trace with hash 192400096, now seen corresponding path program 6 times [2022-02-18 15:52:41,139 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 15:52:41,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580154117] [2022-02-18 15:52:41,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 15:52:41,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 15:52:41,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 15:52:41,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 15:52:41,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 15:52:41,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580154117] [2022-02-18 15:52:41,187 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580154117] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 15:52:41,187 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 15:52:41,187 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 15:52:41,187 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695718379] [2022-02-18 15:52:41,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 15:52:41,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-18 15:52:41,188 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 15:52:41,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-18 15:52:41,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-02-18 15:52:41,188 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) [2022-02-18 15:52:41,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 15:52:41,357 INFO L93 Difference]: Finished difference Result 190 states and 314 transitions. [2022-02-18 15:52:41,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 15:52:41,357 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 [2022-02-18 15:52:41,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 15:52:41,358 INFO L225 Difference]: With dead ends: 190 [2022-02-18 15:52:41,358 INFO L226 Difference]: Without dead ends: 165 [2022-02-18 15:52:41,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2022-02-18 15:52:41,359 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 [2022-02-18 15:52:41,360 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] [2022-02-18 15:52:41,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-02-18 15:52:41,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 115. [2022-02-18 15:52:41,363 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) [2022-02-18 15:52:41,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 192 transitions. [2022-02-18 15:52:41,363 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 192 transitions. Word has length 20 [2022-02-18 15:52:41,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 15:52:41,364 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 192 transitions. [2022-02-18 15:52:41,364 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) [2022-02-18 15:52:41,364 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 192 transitions. [2022-02-18 15:52:41,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-18 15:52:41,364 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 15:52:41,365 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] [2022-02-18 15:52:41,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-18 15:52:41,365 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 15:52:41,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 15:52:41,365 INFO L85 PathProgramCache]: Analyzing trace with hash 856282148, now seen corresponding path program 7 times [2022-02-18 15:52:41,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 15:52:41,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588901149] [2022-02-18 15:52:41,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 15:52:41,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 15:52:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 15:52:41,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 15:52:41,437 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 15:52:41,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588901149] [2022-02-18 15:52:41,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588901149] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 15:52:41,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 15:52:41,438 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-18 15:52:41,438 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782646548] [2022-02-18 15:52:41,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 15:52:41,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-18 15:52:41,439 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 15:52:41,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-18 15:52:41,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-02-18 15:52:41,439 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) [2022-02-18 15:52:41,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 15:52:41,594 INFO L93 Difference]: Finished difference Result 175 states and 285 transitions. [2022-02-18 15:52:41,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-18 15:52:41,594 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 [2022-02-18 15:52:41,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 15:52:41,595 INFO L225 Difference]: With dead ends: 175 [2022-02-18 15:52:41,595 INFO L226 Difference]: Without dead ends: 149 [2022-02-18 15:52:41,596 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 [2022-02-18 15:52:41,596 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 [2022-02-18 15:52:41,597 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] [2022-02-18 15:52:41,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-02-18 15:52:41,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 104. [2022-02-18 15:52:41,600 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) [2022-02-18 15:52:41,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 171 transitions. [2022-02-18 15:52:41,600 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 171 transitions. Word has length 20 [2022-02-18 15:52:41,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 15:52:41,601 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 171 transitions. [2022-02-18 15:52:41,601 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) [2022-02-18 15:52:41,601 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 171 transitions. [2022-02-18 15:52:41,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-18 15:52:41,601 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 15:52:41,602 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] [2022-02-18 15:52:41,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-18 15:52:41,602 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 15:52:41,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 15:52:41,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1692560130, now seen corresponding path program 8 times [2022-02-18 15:52:41,602 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 15:52:41,602 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005016243] [2022-02-18 15:52:41,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 15:52:41,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 15:52:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 15:52:41,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 15:52:41,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 15:52:41,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005016243] [2022-02-18 15:52:41,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005016243] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 15:52:41,656 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 15:52:41,657 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 15:52:41,657 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730162634] [2022-02-18 15:52:41,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 15:52:41,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-18 15:52:41,657 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 15:52:41,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-18 15:52:41,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-02-18 15:52:41,658 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) [2022-02-18 15:52:41,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 15:52:41,795 INFO L93 Difference]: Finished difference Result 161 states and 256 transitions. [2022-02-18 15:52:41,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-18 15:52:41,796 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 [2022-02-18 15:52:41,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 15:52:41,797 INFO L225 Difference]: With dead ends: 161 [2022-02-18 15:52:41,797 INFO L226 Difference]: Without dead ends: 134 [2022-02-18 15:52:41,797 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 [2022-02-18 15:52:41,798 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 [2022-02-18 15:52:41,799 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] [2022-02-18 15:52:41,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-02-18 15:52:41,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 92. [2022-02-18 15:52:41,801 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) [2022-02-18 15:52:41,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 150 transitions. [2022-02-18 15:52:41,802 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 150 transitions. Word has length 20 [2022-02-18 15:52:41,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 15:52:41,802 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 150 transitions. [2022-02-18 15:52:41,802 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) [2022-02-18 15:52:41,802 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 150 transitions. [2022-02-18 15:52:41,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-18 15:52:41,802 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 15:52:41,802 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] [2022-02-18 15:52:41,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-18 15:52:41,803 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 15:52:41,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 15:52:41,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1886458026, now seen corresponding path program 9 times [2022-02-18 15:52:41,803 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 15:52:41,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685767235] [2022-02-18 15:52:41,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 15:52:41,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 15:52:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 15:52:41,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 15:52:41,920 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 15:52:41,920 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685767235] [2022-02-18 15:52:41,920 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685767235] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 15:52:41,920 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 15:52:41,920 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-18 15:52:41,920 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664662068] [2022-02-18 15:52:41,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 15:52:41,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-18 15:52:41,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 15:52:41,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-18 15:52:41,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-02-18 15:52:41,922 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) [2022-02-18 15:52:42,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 15:52:42,154 INFO L93 Difference]: Finished difference Result 209 states and 332 transitions. [2022-02-18 15:52:42,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-18 15:52:42,155 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 [2022-02-18 15:52:42,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 15:52:42,156 INFO L225 Difference]: With dead ends: 209 [2022-02-18 15:52:42,156 INFO L226 Difference]: Without dead ends: 130 [2022-02-18 15:52:42,156 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 [2022-02-18 15:52:42,157 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-18 15:52:42,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 132 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-18 15:52:42,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-02-18 15:52:42,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 94. [2022-02-18 15:52:42,160 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) [2022-02-18 15:52:42,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 152 transitions. [2022-02-18 15:52:42,160 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 152 transitions. Word has length 20 [2022-02-18 15:52:42,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 15:52:42,160 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 152 transitions. [2022-02-18 15:52:42,160 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) [2022-02-18 15:52:42,160 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 152 transitions. [2022-02-18 15:52:42,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-02-18 15:52:42,161 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 15:52:42,161 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] [2022-02-18 15:52:42,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-18 15:52:42,161 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-18 15:52:42,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 15:52:42,162 INFO L85 PathProgramCache]: Analyzing trace with hash -77526904, now seen corresponding path program 10 times [2022-02-18 15:52:42,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 15:52:42,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191591879] [2022-02-18 15:52:42,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 15:52:42,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 15:52:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-18 15:52:42,168 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-18 15:52:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-18 15:52:42,184 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-18 15:52:42,185 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-18 15:52:42,185 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-02-18 15:52:42,191 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-18 15:52:42,193 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-18 15:52:42,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-18 15:52:42,196 INFO L732 BasicCegarLoop]: Path program histogram: [10, 1] [2022-02-18 15:52:42,200 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-18 15:52:42,200 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-18 15:52:42,212 INFO L202 PluginConnector]: Adding new model NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 03:52:42 BasicIcfg [2022-02-18 15:52:42,212 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-18 15:52:42,213 INFO L158 Benchmark]: Toolchain (without parser) took 3932.97ms. Allocated memory was 205.5MB in the beginning and 262.1MB in the end (delta: 56.6MB). Free memory was 170.0MB in the beginning and 182.6MB in the end (delta: -12.5MB). Peak memory consumption was 46.2MB. Max. memory is 8.0GB. [2022-02-18 15:52:42,213 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.16ms. Allocated memory is still 205.5MB. Free memory is still 171.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-18 15:52:42,213 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.81ms. Allocated memory is still 205.5MB. Free memory was 170.0MB in the beginning and 168.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-18 15:52:42,213 INFO L158 Benchmark]: Boogie Preprocessor took 13.08ms. Allocated memory is still 205.5MB. Free memory was 168.5MB in the beginning and 167.6MB in the end (delta: 895.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-18 15:52:42,216 INFO L158 Benchmark]: RCFGBuilder took 207.01ms. Allocated memory is still 205.5MB. Free memory was 167.6MB in the beginning and 159.0MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-18 15:52:42,221 INFO L158 Benchmark]: TraceAbstraction took 3675.15ms. Allocated memory was 205.5MB in the beginning and 262.1MB in the end (delta: 56.6MB). Free memory was 158.5MB in the beginning and 182.6MB in the end (delta: -24.1MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2022-02-18 15:52:42,222 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 0.16ms. Allocated memory is still 205.5MB. Free memory is still 171.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.81ms. Allocated memory is still 205.5MB. Free memory was 170.0MB in the beginning and 168.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.08ms. Allocated memory is still 205.5MB. Free memory was 168.5MB in the beginning and 167.6MB in the end (delta: 895.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 207.01ms. Allocated memory is still 205.5MB. Free memory was 167.6MB in the beginning and 159.0MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 3675.15ms. Allocated memory was 205.5MB in the beginning and 262.1MB in the end (delta: 56.6MB). Free memory was 158.5MB in the beginning and 182.6MB in the end (delta: -24.1MB). Peak memory consumption was 33.6MB. 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=1, localx=0, x=1] [L58] 2 x := localx + 1; VAL [localx=1, localx=0, x=2] [L39] 1 x := localx + 1; VAL [localx=1, localx=0, x=1] [L60] 2 localx := x; VAL [localx=1, localx=0, 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=1, localx=2, x=2] [L45] 1 x := localx + 1; VAL [localx=1, localx=2, x=3] [L61] 2 x := localx + 1; VAL [localx=1, localx=2, x=2] [L26] JOIN 1 join 1; VAL [localx=1, localx=2, x=2] [L27] JOIN 2 join 2; VAL [localx=1, localx=2, x=2] [L28] 0 assert x >= 3; VAL [localx=1, localx=2, 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: 3.5s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 800 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 800 mSDsluCounter, 894 SdHoareTripleChecker+Invalid, 1.1s 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, 0.8s 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! [2022-02-18 15:52:42,266 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...