/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-c7b2d19 [2022-03-15 15:23:43,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 15:23:43,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 15:23:43,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 15:23:43,436 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 [2022-03-15 15:23:43,453 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 15:23:43,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 15:23:43,454 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 15:23:43,454 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 15:23:43,454 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 15:23:43,454 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 15:23:43,455 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 15:23:43,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 15:23:43,455 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 15:23:43,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 15:23:43,456 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 15:23:43,456 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 15:23:43,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 15:23:43,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 15:23:43,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 15:23:43,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 15:23:43,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 15:23:43,456 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 15:23:43,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 15:23:43,456 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 15:23:43,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 15:23:43,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 15:23:43,457 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 15:23:43,457 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 15:23:43,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 15:23:43,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 15:23:43,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 15:23:43,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 15:23:43,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 15:23:43,457 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 15:23:43,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 15:23:43,457 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 15:23:43,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 15:23:43,458 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 15:23:43,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 15:23:43,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 15:23:43,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 15:23:43,673 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-15 15:23:43,674 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-15 15:23:43,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/NonAtomicIncrement_2Threads.bpl [2022-03-15 15:23:43,675 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/NonAtomicIncrement_2Threads.bpl' [2022-03-15 15:23:43,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 15:23:43,691 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-15 15:23:43,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 15:23:43,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 15:23:43,692 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 15:23:43,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:43" (1/1) ... [2022-03-15 15:23:43,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:43" (1/1) ... [2022-03-15 15:23:43,708 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-15 15:23:43,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 15:23:43,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 15:23:43,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 15:23:43,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 15:23:43,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:43" (1/1) ... [2022-03-15 15:23:43,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:43" (1/1) ... [2022-03-15 15:23:43,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:43" (1/1) ... [2022-03-15 15:23:43,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:43" (1/1) ... [2022-03-15 15:23:43,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:43" (1/1) ... [2022-03-15 15:23:43,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:43" (1/1) ... [2022-03-15 15:23:43,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:43" (1/1) ... [2022-03-15 15:23:43,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 15:23:43,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 15:23:43,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 15:23:43,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 15:23:43,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:43" (1/1) ... [2022-03-15 15:23:43,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 15:23:43,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 15:23:43,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 15:23:43,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 15:23:43,764 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-15 15:23:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 15:23:43,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 15:23:43,764 INFO L124 BoogieDeclarations]: Specification and implementation of procedure IncrementProcess1 given in one single declaration [2022-03-15 15:23:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure IncrementProcess1 [2022-03-15 15:23:43,764 INFO L138 BoogieDeclarations]: Found implementation of procedure IncrementProcess1 [2022-03-15 15:23:43,764 INFO L124 BoogieDeclarations]: Specification and implementation of procedure IncrementProcess2 given in one single declaration [2022-03-15 15:23:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure IncrementProcess2 [2022-03-15 15:23:43,764 INFO L138 BoogieDeclarations]: Found implementation of procedure IncrementProcess2 [2022-03-15 15:23:43,765 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 15:23:43,793 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 15:23:43,794 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 15:23:43,871 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 15:23:43,876 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 15:23:43,877 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 15:23:43,879 INFO L202 PluginConnector]: Adding new model NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:23:43 BoogieIcfgContainer [2022-03-15 15:23:43,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 15:23:43,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 15:23:43,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 15:23:43,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 15:23:43,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:43" (1/2) ... [2022-03-15 15:23:43,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba12fac and model type NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 03:23:43, skipping insertion in model container [2022-03-15 15:23:43,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:23:43" (2/2) ... [2022-03-15 15:23:43,886 INFO L111 eAbstractionObserver]: Analyzing ICFG NonAtomicIncrement_2Threads.bpl [2022-03-15 15:23:43,891 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 15:23:43,891 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 15:23:43,891 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 15:23:43,891 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 15:23:43,922 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,922 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,922 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,923 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,923 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,923 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,923 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,923 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,924 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,924 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,924 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,924 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,925 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,925 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,925 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,925 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,925 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,926 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,926 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,926 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,926 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,926 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,926 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,927 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,929 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,931 WARN L322 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:43,935 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-15 15:23:43,978 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 15:23:43,985 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 [2022-03-15 15:23:44,001 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-15 15:23:44,008 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 26 transitions, 74 flow [2022-03-15 15:23:44,035 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) [2022-03-15 15:23:44,038 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) [2022-03-15 15:23:44,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-15 15:23:44,044 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:44,044 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] [2022-03-15 15:23:44,045 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 15:23:44,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:44,050 INFO L85 PathProgramCache]: Analyzing trace with hash 990761800, now seen corresponding path program 1 times [2022-03-15 15:23:44,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:44,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567092985] [2022-03-15 15:23:44,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:44,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:44,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:44,193 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:44,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567092985] [2022-03-15 15:23:44,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567092985] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:44,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:44,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:23:44,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316709350] [2022-03-15 15:23:44,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:44,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 15:23:44,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:44,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 15:23:44,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:23:44,252 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) [2022-03-15 15:23:44,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:44,275 INFO L93 Difference]: Finished difference Result 84 states and 146 transitions. [2022-03-15 15:23:44,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 15:23:44,277 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 [2022-03-15 15:23:44,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:44,282 INFO L225 Difference]: With dead ends: 84 [2022-03-15 15:23:44,282 INFO L226 Difference]: Without dead ends: 84 [2022-03-15 15:23:44,283 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 [2022-03-15 15:23:44,285 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 [2022-03-15 15:23:44,286 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] [2022-03-15 15:23:44,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-03-15 15:23:44,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-03-15 15:23:44,308 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) [2022-03-15 15:23:44,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 146 transitions. [2022-03-15 15:23:44,316 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 146 transitions. Word has length 20 [2022-03-15 15:23:44,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:44,316 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 146 transitions. [2022-03-15 15:23:44,317 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) [2022-03-15 15:23:44,317 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 146 transitions. [2022-03-15 15:23:44,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-15 15:23:44,319 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:44,319 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] [2022-03-15 15:23:44,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 15:23:44,320 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 15:23:44,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:44,322 INFO L85 PathProgramCache]: Analyzing trace with hash -207301178, now seen corresponding path program 1 times [2022-03-15 15:23:44,322 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:44,322 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782498714] [2022-03-15 15:23:44,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:44,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:44,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:44,489 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:44,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782498714] [2022-03-15 15:23:44,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782498714] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:44,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:44,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-03-15 15:23:44,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984401008] [2022-03-15 15:23:44,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:44,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-03-15 15:23:44,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:44,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-03-15 15:23:44,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-03-15 15:23:44,492 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) [2022-03-15 15:23:44,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:44,970 INFO L93 Difference]: Finished difference Result 375 states and 608 transitions. [2022-03-15 15:23:44,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 15:23:44,972 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 [2022-03-15 15:23:44,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:44,979 INFO L225 Difference]: With dead ends: 375 [2022-03-15 15:23:44,980 INFO L226 Difference]: Without dead ends: 291 [2022-03-15 15:23:44,984 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 [2022-03-15 15:23:44,986 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, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:44,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 134 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 15:23:44,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-03-15 15:23:45,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 114. [2022-03-15 15:23:45,005 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) [2022-03-15 15:23:45,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 199 transitions. [2022-03-15 15:23:45,006 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 199 transitions. Word has length 20 [2022-03-15 15:23:45,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:45,006 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 199 transitions. [2022-03-15 15:23:45,007 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) [2022-03-15 15:23:45,007 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 199 transitions. [2022-03-15 15:23:45,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-15 15:23:45,008 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:45,008 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] [2022-03-15 15:23:45,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 15:23:45,008 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 15:23:45,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:45,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1261365540, now seen corresponding path program 2 times [2022-03-15 15:23:45,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:45,009 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702268679] [2022-03-15 15:23:45,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:45,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:45,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:45,138 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:45,138 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702268679] [2022-03-15 15:23:45,138 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702268679] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:45,138 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:45,138 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 15:23:45,139 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976135565] [2022-03-15 15:23:45,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:45,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 15:23:45,139 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:45,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 15:23:45,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-03-15 15:23:45,140 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) [2022-03-15 15:23:45,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:45,395 INFO L93 Difference]: Finished difference Result 336 states and 533 transitions. [2022-03-15 15:23:45,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 15:23:45,396 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 [2022-03-15 15:23:45,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:45,397 INFO L225 Difference]: With dead ends: 336 [2022-03-15 15:23:45,397 INFO L226 Difference]: Without dead ends: 266 [2022-03-15 15:23:45,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=209, Invalid=391, Unknown=0, NotChecked=0, Total=600 [2022-03-15 15:23:45,403 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, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:45,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 86 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:23:45,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-03-15 15:23:45,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 108. [2022-03-15 15:23:45,418 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) [2022-03-15 15:23:45,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 185 transitions. [2022-03-15 15:23:45,419 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 185 transitions. Word has length 20 [2022-03-15 15:23:45,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:45,419 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 185 transitions. [2022-03-15 15:23:45,419 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) [2022-03-15 15:23:45,419 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 185 transitions. [2022-03-15 15:23:45,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-15 15:23:45,420 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:45,420 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] [2022-03-15 15:23:45,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 15:23:45,420 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 15:23:45,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:45,421 INFO L85 PathProgramCache]: Analyzing trace with hash 257033602, now seen corresponding path program 3 times [2022-03-15 15:23:45,421 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:45,421 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365910208] [2022-03-15 15:23:45,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:45,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:45,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:45,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:45,480 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365910208] [2022-03-15 15:23:45,480 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365910208] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:45,480 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:45,480 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 15:23:45,480 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367569921] [2022-03-15 15:23:45,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:45,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 15:23:45,481 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:45,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 15:23:45,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-03-15 15:23:45,481 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) [2022-03-15 15:23:45,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:45,685 INFO L93 Difference]: Finished difference Result 316 states and 497 transitions. [2022-03-15 15:23:45,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 15:23:45,686 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 [2022-03-15 15:23:45,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:45,687 INFO L225 Difference]: With dead ends: 316 [2022-03-15 15:23:45,687 INFO L226 Difference]: Without dead ends: 278 [2022-03-15 15:23:45,687 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 [2022-03-15 15:23:45,688 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 [2022-03-15 15:23:45,688 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] [2022-03-15 15:23:45,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-15 15:23:45,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 131. [2022-03-15 15:23:45,692 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) [2022-03-15 15:23:45,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 221 transitions. [2022-03-15 15:23:45,693 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 221 transitions. Word has length 20 [2022-03-15 15:23:45,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:45,693 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 221 transitions. [2022-03-15 15:23:45,693 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) [2022-03-15 15:23:45,693 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 221 transitions. [2022-03-15 15:23:45,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-15 15:23:45,694 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:45,694 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] [2022-03-15 15:23:45,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 15:23:45,694 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 15:23:45,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:45,694 INFO L85 PathProgramCache]: Analyzing trace with hash 920915654, now seen corresponding path program 4 times [2022-03-15 15:23:45,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:45,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578532645] [2022-03-15 15:23:45,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:45,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:45,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:45,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:45,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:45,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578532645] [2022-03-15 15:23:45,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578532645] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:45,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:45,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 15:23:45,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992512877] [2022-03-15 15:23:45,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:45,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 15:23:45,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:45,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 15:23:45,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-03-15 15:23:45,788 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) [2022-03-15 15:23:45,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:45,994 INFO L93 Difference]: Finished difference Result 288 states and 451 transitions. [2022-03-15 15:23:45,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-15 15:23:45,994 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 [2022-03-15 15:23:45,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:45,995 INFO L225 Difference]: With dead ends: 288 [2022-03-15 15:23:45,995 INFO L226 Difference]: Without dead ends: 271 [2022-03-15 15:23:45,996 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 [2022-03-15 15:23:45,996 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 [2022-03-15 15:23:45,997 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] [2022-03-15 15:23:45,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-03-15 15:23:46,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 131. [2022-03-15 15:23:46,000 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) [2022-03-15 15:23:46,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 217 transitions. [2022-03-15 15:23:46,001 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 217 transitions. Word has length 20 [2022-03-15 15:23:46,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:46,001 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 217 transitions. [2022-03-15 15:23:46,001 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) [2022-03-15 15:23:46,001 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 217 transitions. [2022-03-15 15:23:46,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-15 15:23:46,002 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:46,002 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] [2022-03-15 15:23:46,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 15:23:46,002 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 15:23:46,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:46,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1757193636, now seen corresponding path program 5 times [2022-03-15 15:23:46,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:46,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242670559] [2022-03-15 15:23:46,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:46,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:46,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:46,068 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:46,068 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242670559] [2022-03-15 15:23:46,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242670559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:46,069 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:46,069 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 15:23:46,069 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580812549] [2022-03-15 15:23:46,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:46,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 15:23:46,069 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:46,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 15:23:46,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-03-15 15:23:46,070 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) [2022-03-15 15:23:46,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:46,278 INFO L93 Difference]: Finished difference Result 263 states and 416 transitions. [2022-03-15 15:23:46,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 15:23:46,279 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 [2022-03-15 15:23:46,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:46,279 INFO L225 Difference]: With dead ends: 263 [2022-03-15 15:23:46,280 INFO L226 Difference]: Without dead ends: 227 [2022-03-15 15:23:46,280 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 [2022-03-15 15:23:46,280 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 74 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:46,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 75 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:23:46,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-03-15 15:23:46,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 110. [2022-03-15 15:23:46,284 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) [2022-03-15 15:23:46,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 186 transitions. [2022-03-15 15:23:46,284 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 186 transitions. Word has length 20 [2022-03-15 15:23:46,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:46,284 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 186 transitions. [2022-03-15 15:23:46,284 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) [2022-03-15 15:23:46,285 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 186 transitions. [2022-03-15 15:23:46,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-15 15:23:46,285 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:46,285 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] [2022-03-15 15:23:46,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 15:23:46,285 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 15:23:46,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:46,286 INFO L85 PathProgramCache]: Analyzing trace with hash 192400096, now seen corresponding path program 6 times [2022-03-15 15:23:46,286 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:46,286 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532676766] [2022-03-15 15:23:46,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:46,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:46,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:46,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:46,327 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:46,327 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532676766] [2022-03-15 15:23:46,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532676766] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:46,327 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:46,327 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:46,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022398311] [2022-03-15 15:23:46,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:46,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:46,328 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:46,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:46,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:46,328 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) [2022-03-15 15:23:46,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:46,480 INFO L93 Difference]: Finished difference Result 190 states and 314 transitions. [2022-03-15 15:23:46,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 15:23:46,481 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 [2022-03-15 15:23:46,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:46,482 INFO L225 Difference]: With dead ends: 190 [2022-03-15 15:23:46,482 INFO L226 Difference]: Without dead ends: 165 [2022-03-15 15:23:46,482 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 [2022-03-15 15:23:46,482 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 [2022-03-15 15:23:46,483 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] [2022-03-15 15:23:46,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-03-15 15:23:46,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 115. [2022-03-15 15:23:46,485 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) [2022-03-15 15:23:46,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 192 transitions. [2022-03-15 15:23:46,485 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 192 transitions. Word has length 20 [2022-03-15 15:23:46,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:46,486 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 192 transitions. [2022-03-15 15:23:46,486 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) [2022-03-15 15:23:46,486 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 192 transitions. [2022-03-15 15:23:46,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-15 15:23:46,486 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:46,487 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] [2022-03-15 15:23:46,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 15:23:46,487 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 15:23:46,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:46,487 INFO L85 PathProgramCache]: Analyzing trace with hash 856282148, now seen corresponding path program 7 times [2022-03-15 15:23:46,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:46,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032068498] [2022-03-15 15:23:46,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:46,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:46,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:46,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:46,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032068498] [2022-03-15 15:23:46,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032068498] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:46,538 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:46,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-03-15 15:23:46,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166610991] [2022-03-15 15:23:46,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:46,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 15:23:46,539 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:46,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 15:23:46,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-03-15 15:23:46,539 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) [2022-03-15 15:23:46,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:46,689 INFO L93 Difference]: Finished difference Result 175 states and 285 transitions. [2022-03-15 15:23:46,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 15:23:46,689 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 [2022-03-15 15:23:46,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:46,690 INFO L225 Difference]: With dead ends: 175 [2022-03-15 15:23:46,690 INFO L226 Difference]: Without dead ends: 149 [2022-03-15 15:23:46,690 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 [2022-03-15 15:23:46,691 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 [2022-03-15 15:23:46,691 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] [2022-03-15 15:23:46,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-03-15 15:23:46,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 104. [2022-03-15 15:23:46,693 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) [2022-03-15 15:23:46,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 171 transitions. [2022-03-15 15:23:46,693 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 171 transitions. Word has length 20 [2022-03-15 15:23:46,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:46,694 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 171 transitions. [2022-03-15 15:23:46,694 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) [2022-03-15 15:23:46,694 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 171 transitions. [2022-03-15 15:23:46,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-15 15:23:46,694 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:46,694 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] [2022-03-15 15:23:46,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 15:23:46,694 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 15:23:46,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:46,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1692560130, now seen corresponding path program 8 times [2022-03-15 15:23:46,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:46,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880212611] [2022-03-15 15:23:46,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:46,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:46,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:46,756 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:46,756 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880212611] [2022-03-15 15:23:46,756 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880212611] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:46,756 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:46,756 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 15:23:46,756 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189208155] [2022-03-15 15:23:46,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:46,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 15:23:46,757 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:46,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 15:23:46,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-03-15 15:23:46,757 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) [2022-03-15 15:23:46,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:46,874 INFO L93 Difference]: Finished difference Result 161 states and 256 transitions. [2022-03-15 15:23:46,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-15 15:23:46,875 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 [2022-03-15 15:23:46,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:46,875 INFO L225 Difference]: With dead ends: 161 [2022-03-15 15:23:46,875 INFO L226 Difference]: Without dead ends: 134 [2022-03-15 15:23:46,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2022-03-15 15:23:46,876 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 [2022-03-15 15:23:46,876 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] [2022-03-15 15:23:46,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-03-15 15:23:46,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 92. [2022-03-15 15:23:46,878 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) [2022-03-15 15:23:46,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 150 transitions. [2022-03-15 15:23:46,878 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 150 transitions. Word has length 20 [2022-03-15 15:23:46,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:46,878 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 150 transitions. [2022-03-15 15:23:46,878 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) [2022-03-15 15:23:46,879 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 150 transitions. [2022-03-15 15:23:46,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-15 15:23:46,879 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:46,879 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] [2022-03-15 15:23:46,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 15:23:46,879 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 15:23:46,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:46,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1886458026, now seen corresponding path program 9 times [2022-03-15 15:23:46,880 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:46,880 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522186376] [2022-03-15 15:23:46,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:46,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:46,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:46,950 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:46,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522186376] [2022-03-15 15:23:46,950 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522186376] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:46,950 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:46,950 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-15 15:23:46,950 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686340528] [2022-03-15 15:23:46,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:46,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-03-15 15:23:46,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:46,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-03-15 15:23:46,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2022-03-15 15:23:46,951 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) [2022-03-15 15:23:47,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:47,133 INFO L93 Difference]: Finished difference Result 209 states and 332 transitions. [2022-03-15 15:23:47,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 15:23:47,134 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-03-15 15:23:47,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:47,134 INFO L225 Difference]: With dead ends: 209 [2022-03-15 15:23:47,135 INFO L226 Difference]: Without dead ends: 130 [2022-03-15 15:23:47,135 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 [2022-03-15 15:23:47,135 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 83 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:47,136 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 132 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:23:47,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-03-15 15:23:47,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 94. [2022-03-15 15:23:47,138 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) [2022-03-15 15:23:47,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 152 transitions. [2022-03-15 15:23:47,138 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 152 transitions. Word has length 20 [2022-03-15 15:23:47,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:47,138 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 152 transitions. [2022-03-15 15:23:47,138 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) [2022-03-15 15:23:47,138 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 152 transitions. [2022-03-15 15:23:47,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-03-15 15:23:47,139 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:47,139 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] [2022-03-15 15:23:47,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-15 15:23:47,139 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 15:23:47,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:47,139 INFO L85 PathProgramCache]: Analyzing trace with hash -77526904, now seen corresponding path program 10 times [2022-03-15 15:23:47,139 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:47,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867443001] [2022-03-15 15:23:47,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:47,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 15:23:47,144 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-15 15:23:47,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-15 15:23:47,159 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-15 15:23:47,159 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-15 15:23:47,160 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-15 15:23:47,161 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-15 15:23:47,161 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-15 15:23:47,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-15 15:23:47,163 INFO L732 BasicCegarLoop]: Path program histogram: [10, 1] [2022-03-15 15:23:47,166 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 15:23:47,166 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 15:23:47,177 INFO L202 PluginConnector]: Adding new model NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 03:23:47 BasicIcfg [2022-03-15 15:23:47,177 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 15:23:47,177 INFO L158 Benchmark]: Toolchain (without parser) took 3486.09ms. Allocated memory was 192.9MB in the beginning and 274.7MB in the end (delta: 81.8MB). Free memory was 151.4MB in the beginning and 196.1MB in the end (delta: -44.7MB). Peak memory consumption was 38.6MB. Max. memory is 8.0GB. [2022-03-15 15:23:47,177 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 192.9MB. Free memory is still 152.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 15:23:47,178 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.05ms. Allocated memory is still 192.9MB. Free memory was 151.4MB in the beginning and 149.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 15:23:47,178 INFO L158 Benchmark]: Boogie Preprocessor took 8.18ms. Allocated memory is still 192.9MB. Free memory was 149.9MB in the beginning and 148.9MB in the end (delta: 928.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 15:23:47,178 INFO L158 Benchmark]: RCFGBuilder took 160.19ms. Allocated memory is still 192.9MB. Free memory was 148.9MB in the beginning and 140.4MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-15 15:23:47,178 INFO L158 Benchmark]: TraceAbstraction took 3296.34ms. Allocated memory was 192.9MB in the beginning and 274.7MB in the end (delta: 81.8MB). Free memory was 139.9MB in the beginning and 196.1MB in the end (delta: -56.2MB). Peak memory consumption was 27.1MB. Max. memory is 8.0GB. [2022-03-15 15:23:47,179 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 0.11ms. Allocated memory is still 192.9MB. Free memory is still 152.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 17.05ms. Allocated memory is still 192.9MB. Free memory was 151.4MB in the beginning and 149.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 8.18ms. Allocated memory is still 192.9MB. Free memory was 149.9MB in the beginning and 148.9MB in the end (delta: 928.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 160.19ms. Allocated memory is still 192.9MB. Free memory was 148.9MB in the beginning and 140.4MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 3296.34ms. Allocated memory was 192.9MB in the beginning and 274.7MB in the end (delta: 81.8MB). Free memory was 139.9MB in the beginning and 196.1MB in the end (delta: -56.2MB). Peak memory consumption was 27.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 28]: assertion can be violated assertion can be violated We found a FailurePath: [L22] 0 x := 0; VAL [x=0] [L24] FORK 0 fork 1 IncrementProcess1(); VAL [x=0] [L38] 1 localx := x; VAL [localx=0, x=0] [L25] FORK 0 fork 2 IncrementProcess2(); VAL [localx=0, x=0] [L54] 2 localx := x; VAL [localx=0, localx=0, x=0] [L55] 2 x := localx + 1; VAL [localx=0, localx=0, x=1] [L57] 2 localx := x; VAL [localx=0, localx=1, x=1] [L58] 2 x := localx + 1; VAL [localx=0, localx=1, x=2] [L39] 1 x := localx + 1; VAL [localx=0, localx=1, x=1] [L60] 2 localx := x; VAL [localx=0, localx=1, x=1] [L41] 1 localx := x; VAL [localx=1, localx=1, x=1] [L42] 1 x := localx + 1; VAL [localx=1, localx=1, x=2] [L44] 1 localx := x; VAL [localx=2, localx=1, x=2] [L45] 1 x := localx + 1; VAL [localx=2, localx=1, x=3] [L61] 2 x := localx + 1; VAL [localx=2, localx=1, x=2] [L26] JOIN 1 join 1; VAL [localx=2, localx=1, x=2] [L27] JOIN 2 join 2; VAL [localx=2, localx=1, x=2] [L28] 0 assert x >= 3; VAL [localx=2, localx=1, x=2] - UnprovableResult [Line: 24]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 43 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 800 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 800 mSDsluCounter, 894 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1016 mSDsCounter, 471 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2609 IncrementalHoareTripleChecker+Invalid, 3080 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 471 mSolverCounterUnsat, 281 mSDtfsCounter, 2609 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=4, InterpolantAutomatonStates: 130, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 912 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 220 NumberOfCodeBlocks, 220 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 190 ConstructedInterpolants, 0 QuantifiedInterpolants, 548 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-03-15 15:23:47,203 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...