/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/fork_in_loop.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-28 14:33:29,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-28 14:33:29,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-28 14:33:29,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-28 14:33:29,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-28 14:33:29,954 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-28 14:33:29,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-28 14:33:29,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-28 14:33:29,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-28 14:33:29,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-28 14:33:29,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-28 14:33:29,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-28 14:33:29,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-28 14:33:29,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-28 14:33:29,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-28 14:33:29,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-28 14:33:29,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-28 14:33:29,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-28 14:33:29,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-28 14:33:29,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-28 14:33:29,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-28 14:33:29,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-28 14:33:29,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-28 14:33:29,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-28 14:33:29,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-28 14:33:29,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-28 14:33:29,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-28 14:33:29,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-28 14:33:29,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-28 14:33:29,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-28 14:33:29,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-28 14:33:29,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-28 14:33:29,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-28 14:33:29,989 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-28 14:33:29,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-28 14:33:29,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-28 14:33:29,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-28 14:33:29,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-28 14:33:29,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-28 14:33:29,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-28 14:33:29,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-28 14:33:29,993 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 [2022-01-28 14:33:30,016 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-28 14:33:30,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-28 14:33:30,017 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-28 14:33:30,017 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-28 14:33:30,018 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-28 14:33:30,018 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-28 14:33:30,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-28 14:33:30,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-28 14:33:30,018 INFO L138 SettingsManager]: * Use SBE=true [2022-01-28 14:33:30,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-28 14:33:30,019 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-28 14:33:30,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-28 14:33:30,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-28 14:33:30,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-28 14:33:30,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-28 14:33:30,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-28 14:33:30,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-28 14:33:30,020 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-28 14:33:30,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-28 14:33:30,020 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-28 14:33:30,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-28 14:33:30,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-28 14:33:30,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-28 14:33:30,020 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-28 14:33:30,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-28 14:33:30,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 14:33:30,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-28 14:33:30,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-28 14:33:30,022 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-28 14:33:30,022 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-28 14:33:30,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-28 14:33:30,022 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-28 14:33:30,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-28 14:33:30,023 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-28 14:33:30,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-28 14:33:30,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-28 14:33:30,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-28 14:33:30,305 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-28 14:33:30,306 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-28 14:33:30,307 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/fork_in_loop.bpl [2022-01-28 14:33:30,307 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/fork_in_loop.bpl' [2022-01-28 14:33:30,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-28 14:33:30,328 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-28 14:33:30,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-28 14:33:30,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-28 14:33:30,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-28 14:33:30,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "fork_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 02:33:30" (1/1) ... [2022-01-28 14:33:30,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "fork_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 02:33:30" (1/1) ... [2022-01-28 14:33:30,363 INFO L137 Inliner]: procedures = 2, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-28 14:33:30,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-28 14:33:30,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-28 14:33:30,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-28 14:33:30,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-28 14:33:30,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "fork_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 02:33:30" (1/1) ... [2022-01-28 14:33:30,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "fork_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 02:33:30" (1/1) ... [2022-01-28 14:33:30,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "fork_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 02:33:30" (1/1) ... [2022-01-28 14:33:30,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "fork_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 02:33:30" (1/1) ... [2022-01-28 14:33:30,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "fork_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 02:33:30" (1/1) ... [2022-01-28 14:33:30,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "fork_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 02:33:30" (1/1) ... [2022-01-28 14:33:30,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "fork_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 02:33:30" (1/1) ... [2022-01-28 14:33:30,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-28 14:33:30,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-28 14:33:30,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-28 14:33:30,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-28 14:33:30,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "fork_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 02:33:30" (1/1) ... [2022-01-28 14:33:30,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-28 14:33:30,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-28 14:33:30,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-28 14:33:30,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-28 14:33:30,466 INFO L124 BoogieDeclarations]: Specification and implementation of procedure foo given in one single declaration [2022-01-28 14:33:30,467 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-01-28 14:33:30,467 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-01-28 14:33:30,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-28 14:33:30,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-28 14:33:30,468 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-28 14:33:30,497 INFO L234 CfgBuilder]: Building ICFG [2022-01-28 14:33:30,498 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-28 14:33:30,561 INFO L275 CfgBuilder]: Performing block encoding [2022-01-28 14:33:30,567 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-28 14:33:30,567 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-28 14:33:30,572 INFO L202 PluginConnector]: Adding new model fork_in_loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 02:33:30 BoogieIcfgContainer [2022-01-28 14:33:30,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-28 14:33:30,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-28 14:33:30,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-28 14:33:30,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-28 14:33:30,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.01 02:33:30" (1/2) ... [2022-01-28 14:33:30,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c6fccc3 and model type fork_in_loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 02:33:30, skipping insertion in model container [2022-01-28 14:33:30,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_in_loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 02:33:30" (2/2) ... [2022-01-28 14:33:30,584 INFO L111 eAbstractionObserver]: Analyzing ICFG fork_in_loop.bpl [2022-01-28 14:33:30,592 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-28 14:33:30,592 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-28 14:33:30,592 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-28 14:33:30,592 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-28 14:33:30,613 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:33:30,613 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:33:30,614 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:33:30,614 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:33:30,627 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:33:30,629 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:33:30,631 INFO L148 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2022-01-28 14:33:30,682 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-28 14:33:30,690 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, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-28 14:33:30,690 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-28 14:33:30,699 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 25 transitions, 78 flow [2022-01-28 14:33:30,714 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 42 states, 37 states have (on average 1.5945945945945945) internal successors, (59), 41 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 14:33:30,716 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 37 states have (on average 1.5945945945945945) internal successors, (59), 41 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 14:33:30,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-28 14:33:30,719 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 14:33:30,720 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-01-28 14:33:30,720 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 14:33:30,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 14:33:30,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1658350537, now seen corresponding path program 1 times [2022-01-28 14:33:30,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 14:33:30,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111448547] [2022-01-28 14:33:30,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 14:33:30,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 14:33:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 14:33:30,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-28 14:33:30,846 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 14:33:30,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111448547] [2022-01-28 14:33:30,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111448547] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 14:33:30,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 14:33:30,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-28 14:33:30,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024742572] [2022-01-28 14:33:30,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 14:33:30,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-28 14:33:30,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 14:33:30,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-28 14:33:30,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-28 14:33:30,874 INFO L87 Difference]: Start difference. First operand has 42 states, 37 states have (on average 1.5945945945945945) internal successors, (59), 41 states have internal predecessors, (59), 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 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 14:33:30,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 14:33:30,922 INFO L93 Difference]: Finished difference Result 36 states and 49 transitions. [2022-01-28 14:33:30,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-28 14:33:30,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-01-28 14:33:30,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 14:33:30,931 INFO L225 Difference]: With dead ends: 36 [2022-01-28 14:33:30,931 INFO L226 Difference]: Without dead ends: 29 [2022-01-28 14:33:30,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-28 14:33:30,935 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 18 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 14:33:30,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 15 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 14:33:30,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-01-28 14:33:30,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-01-28 14:33:30,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 14:33:30,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2022-01-28 14:33:30,955 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 6 [2022-01-28 14:33:30,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 14:33:30,956 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2022-01-28 14:33:30,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 14:33:30,956 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2022-01-28 14:33:30,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-28 14:33:30,956 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 14:33:30,957 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 14:33:30,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-28 14:33:30,957 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 14:33:30,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 14:33:30,958 INFO L85 PathProgramCache]: Analyzing trace with hash -45071368, now seen corresponding path program 1 times [2022-01-28 14:33:30,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 14:33:30,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318443350] [2022-01-28 14:33:30,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 14:33:30,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 14:33:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-28 14:33:30,968 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-28 14:33:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-28 14:33:30,983 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-28 14:33:30,984 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-28 14:33:30,985 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 3 remaining) [2022-01-28 14:33:30,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 3 remaining) [2022-01-28 14:33:30,986 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 3 remaining) [2022-01-28 14:33:30,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-28 14:33:31,013 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-28 14:33:31,014 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-28 14:33:31,014 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-01-28 14:33:31,033 WARN L322 ript$VariableManager]: TermVariabe fooThread1of2ForFork1_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:33:31,034 WARN L322 ript$VariableManager]: TermVariabe fooThread1of2ForFork1_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:33:31,034 WARN L322 ript$VariableManager]: TermVariabe fooThread2of2ForFork1_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:33:31,034 WARN L322 ript$VariableManager]: TermVariabe fooThread2of2ForFork1_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:33:31,034 WARN L322 ript$VariableManager]: TermVariabe fooThread1of2ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:33:31,034 WARN L322 ript$VariableManager]: TermVariabe fooThread1of2ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:33:31,035 WARN L322 ript$VariableManager]: TermVariabe fooThread2of2ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:33:31,035 WARN L322 ript$VariableManager]: TermVariabe fooThread2of2ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:33:31,036 WARN L322 ript$VariableManager]: TermVariabe fooThread1of2ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:33:31,037 WARN L322 ript$VariableManager]: TermVariabe fooThread2of2ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:33:31,038 WARN L322 ript$VariableManager]: TermVariabe fooThread1of2ForFork1_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:33:31,040 WARN L322 ript$VariableManager]: TermVariabe fooThread2of2ForFork1_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-28 14:33:31,043 INFO L148 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2022-01-28 14:33:31,049 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-28 14:33:31,050 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, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-28 14:33:31,050 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-28 14:33:31,051 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 37 places, 37 transitions, 134 flow [2022-01-28 14:33:31,119 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 602 states, 586 states have (on average 2.513651877133106) internal successors, (1473), 601 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 14:33:31,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 602 states, 586 states have (on average 2.513651877133106) internal successors, (1473), 601 states have internal predecessors, (1473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 14:33:31,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-28 14:33:31,121 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 14:33:31,121 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2022-01-28 14:33:31,121 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 14:33:31,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 14:33:31,121 INFO L85 PathProgramCache]: Analyzing trace with hash 563208564, now seen corresponding path program 1 times [2022-01-28 14:33:31,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 14:33:31,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494748140] [2022-01-28 14:33:31,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 14:33:31,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 14:33:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 14:33:31,164 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 14:33:31,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 14:33:31,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494748140] [2022-01-28 14:33:31,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494748140] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 14:33:31,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 14:33:31,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-28 14:33:31,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456063104] [2022-01-28 14:33:31,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 14:33:31,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-28 14:33:31,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 14:33:31,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-28 14:33:31,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-28 14:33:31,168 INFO L87 Difference]: Start difference. First operand has 602 states, 586 states have (on average 2.513651877133106) internal successors, (1473), 601 states have internal predecessors, (1473), 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 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 14:33:31,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 14:33:31,202 INFO L93 Difference]: Finished difference Result 86 states and 156 transitions. [2022-01-28 14:33:31,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-28 14:33:31,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-01-28 14:33:31,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 14:33:31,204 INFO L225 Difference]: With dead ends: 86 [2022-01-28 14:33:31,204 INFO L226 Difference]: Without dead ends: 79 [2022-01-28 14:33:31,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-28 14:33:31,205 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 21 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 14:33:31,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 18 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 14:33:31,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-01-28 14:33:31,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2022-01-28 14:33:31,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 77 states have (on average 1.9090909090909092) internal successors, (147), 78 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 14:33:31,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 147 transitions. [2022-01-28 14:33:31,213 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 147 transitions. Word has length 9 [2022-01-28 14:33:31,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 14:33:31,213 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 147 transitions. [2022-01-28 14:33:31,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 14:33:31,213 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 147 transitions. [2022-01-28 14:33:31,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-01-28 14:33:31,214 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 14:33:31,214 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 14:33:31,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-28 14:33:31,214 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 14:33:31,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 14:33:31,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1981956494, now seen corresponding path program 1 times [2022-01-28 14:33:31,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 14:33:31,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354915619] [2022-01-28 14:33:31,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 14:33:31,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 14:33:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-28 14:33:31,262 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-28 14:33:31,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-28 14:33:31,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354915619] [2022-01-28 14:33:31,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354915619] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-28 14:33:31,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-28 14:33:31,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-28 14:33:31,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773535904] [2022-01-28 14:33:31,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-28 14:33:31,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-28 14:33:31,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-28 14:33:31,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-28 14:33:31,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-28 14:33:31,266 INFO L87 Difference]: Start difference. First operand 79 states and 147 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 14:33:31,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-28 14:33:31,314 INFO L93 Difference]: Finished difference Result 61 states and 105 transitions. [2022-01-28 14:33:31,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-28 14:33:31,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 17 [2022-01-28 14:33:31,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-28 14:33:31,316 INFO L225 Difference]: With dead ends: 61 [2022-01-28 14:33:31,316 INFO L226 Difference]: Without dead ends: 61 [2022-01-28 14:33:31,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-28 14:33:31,317 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 28 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-28 14:33:31,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 27 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-28 14:33:31,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-01-28 14:33:31,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-01-28 14:33:31,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.75) internal successors, (105), 60 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 14:33:31,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 105 transitions. [2022-01-28 14:33:31,322 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 105 transitions. Word has length 17 [2022-01-28 14:33:31,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-28 14:33:31,322 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 105 transitions. [2022-01-28 14:33:31,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-28 14:33:31,322 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 105 transitions. [2022-01-28 14:33:31,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-28 14:33:31,323 INFO L506 BasicCegarLoop]: Found error trace [2022-01-28 14:33:31,323 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-28 14:33:31,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-28 14:33:31,323 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-28 14:33:31,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-28 14:33:31,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1743646333, now seen corresponding path program 1 times [2022-01-28 14:33:31,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-28 14:33:31,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053673254] [2022-01-28 14:33:31,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-28 14:33:31,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-28 14:33:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-28 14:33:31,347 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-28 14:33:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-28 14:33:31,355 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-28 14:33:31,367 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-28 14:33:31,368 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-01-28 14:33:31,368 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-28 14:33:31,368 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-28 14:33:31,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-28 14:33:31,368 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-01-28 14:33:31,371 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-01-28 14:33:31,371 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-28 14:33:31,386 INFO L202 PluginConnector]: Adding new model fork_in_loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 02:33:31 BasicIcfg [2022-01-28 14:33:31,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-28 14:33:31,386 INFO L158 Benchmark]: Toolchain (without parser) took 1058.33ms. Allocated memory is still 182.5MB. Free memory was 144.0MB in the beginning and 136.2MB in the end (delta: 7.8MB). Peak memory consumption was 8.7MB. Max. memory is 8.0GB. [2022-01-28 14:33:31,387 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 182.5MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-28 14:33:31,387 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.57ms. Allocated memory is still 182.5MB. Free memory was 144.0MB in the beginning and 142.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-28 14:33:31,387 INFO L158 Benchmark]: Boogie Preprocessor took 14.17ms. Allocated memory is still 182.5MB. Free memory was 142.4MB in the beginning and 141.6MB in the end (delta: 837.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-28 14:33:31,388 INFO L158 Benchmark]: RCFGBuilder took 191.83ms. Allocated memory is still 182.5MB. Free memory was 141.5MB in the beginning and 133.4MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-01-28 14:33:31,388 INFO L158 Benchmark]: TraceAbstraction took 810.10ms. Allocated memory is still 182.5MB. Free memory was 133.0MB in the beginning and 136.2MB in the end (delta: -3.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-01-28 14:33:31,389 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 0.10ms. Allocated memory is still 182.5MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.57ms. Allocated memory is still 182.5MB. Free memory was 144.0MB in the beginning and 142.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.17ms. Allocated memory is still 182.5MB. Free memory was 142.4MB in the beginning and 141.6MB in the end (delta: 837.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 191.83ms. Allocated memory is still 182.5MB. Free memory was 141.5MB in the beginning and 133.4MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 810.10ms. Allocated memory is still 182.5MB. Free memory was 133.0MB in the beginning and 136.2MB in the end (delta: -3.2MB). There was no memory consumed. 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 - 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: 35]: assertion can be violated assertion can be violated We found a FailurePath: [L20] 0 x := 1; VAL [x=1] [L22] COND TRUE 0 x < 2 VAL [x=1] [L23] FORK 0 fork x foo(x); VAL [i=1, x=1] [L24] 0 x := x + 1; VAL [i=1, x=2] [L22] COND FALSE 0 !(x < 2) VAL [i=1, x=2] [L26] 0 x := 1; VAL [i=1, x=1] [L42] 1 y := 4; VAL [i=1, x=1, y=4] [L27] JOIN 1 join x; VAL [i=1, x=1, y=4] [L28] COND TRUE 0 x < 3 VAL [i=1, x=1, y=4] [L29] FORK 0 fork x foo(x); VAL [i=1, x=1, y=4] [L30] 0 x := x + 1; VAL [i=1, x=2, y=4] [L42] 2 y := 4; VAL [i=1, x=2, y=4] [L28] COND TRUE 0 x < 3 VAL [i=1, x=2, y=4] [L29] FORK 0 fork x foo(x); VAL [i=2, x=2, y=4] [L30] 0 x := x + 1; VAL [i=2, x=3, y=4] [L42] 3 y := 4; VAL [i=2, x=3, y=4] [L28] COND FALSE 0 !(x < 3) VAL [i=2, x=3, y=4] [L33] JOIN 2 join 1; VAL [i=2, x=3, y=4] [L34] JOIN 3 join 2; VAL [i=2, x=3, y=4] [L35] 0 assert false; VAL [i=2, x=3, y=4] - UnprovableResult [Line: 23]: 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: 29]: 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 4 procedures, 26 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 11 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 6 procedures, 32 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 31 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=602occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 52 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 15/15 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! [2022-01-28 14:33:31,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...