/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/FischerWithBug.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 23:59:41,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 23:59:41,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 23:59:41,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-10 23:59:41,431 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-10 23:59:41,454 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 23:59:41,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 23:59:41,455 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 23:59:41,455 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 23:59:41,456 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 23:59:41,456 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 23:59:41,456 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 23:59:41,456 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 23:59:41,456 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 23:59:41,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 23:59:41,457 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 23:59:41,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 23:59:41,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 23:59:41,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 23:59:41,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 23:59:41,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 23:59:41,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 23:59:41,457 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 23:59:41,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 23:59:41,458 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 23:59:41,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 23:59:41,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 23:59:41,458 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 23:59:41,458 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 23:59:41,458 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 23:59:41,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 23:59:41,458 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 23:59:41,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 23:59:41,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 23:59:41,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 23:59:41,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 23:59:41,459 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 23:59:41,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 23:59:41,459 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 23:59:41,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 23:59:41,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 23:59:41,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 23:59:41,652 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-10 23:59:41,653 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-10 23:59:41,654 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/FischerWithBug.bpl [2022-02-10 23:59:41,654 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/FischerWithBug.bpl' [2022-02-10 23:59:41,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 23:59:41,670 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-10 23:59:41,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 23:59:41,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 23:59:41,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 23:59:41,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:41" (1/1) ... [2022-02-10 23:59:41,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:41" (1/1) ... [2022-02-10 23:59:41,690 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-10 23:59:41,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 23:59:41,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 23:59:41,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 23:59:41,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 23:59:41,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:41" (1/1) ... [2022-02-10 23:59:41,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:41" (1/1) ... [2022-02-10 23:59:41,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:41" (1/1) ... [2022-02-10 23:59:41,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:41" (1/1) ... [2022-02-10 23:59:41,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:41" (1/1) ... [2022-02-10 23:59:41,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:41" (1/1) ... [2022-02-10 23:59:41,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:41" (1/1) ... [2022-02-10 23:59:41,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 23:59:41,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 23:59:41,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 23:59:41,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 23:59:41,711 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:41" (1/1) ... [2022-02-10 23:59:41,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 23:59:41,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 23:59:41,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-10 23:59:41,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-10 23:59:41,784 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process2 given in one single declaration [2022-02-10 23:59:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure Process2 [2022-02-10 23:59:41,784 INFO L138 BoogieDeclarations]: Found implementation of procedure Process2 [2022-02-10 23:59:41,784 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process1 given in one single declaration [2022-02-10 23:59:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure Process1 [2022-02-10 23:59:41,784 INFO L138 BoogieDeclarations]: Found implementation of procedure Process1 [2022-02-10 23:59:41,784 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-10 23:59:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 23:59:41,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 23:59:41,784 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Clock given in one single declaration [2022-02-10 23:59:41,784 INFO L130 BoogieDeclarations]: Found specification of procedure Clock [2022-02-10 23:59:41,785 INFO L138 BoogieDeclarations]: Found implementation of procedure Clock [2022-02-10 23:59:41,785 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 23:59:41,816 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 23:59:41,817 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 23:59:41,918 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 23:59:41,923 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 23:59:41,923 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-02-10 23:59:41,925 INFO L202 PluginConnector]: Adding new model FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:59:41 BoogieIcfgContainer [2022-02-10 23:59:41,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 23:59:41,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 23:59:41,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 23:59:41,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 23:59:41,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:59:41" (1/2) ... [2022-02-10 23:59:41,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64d33f22 and model type FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 11:59:41, skipping insertion in model container [2022-02-10 23:59:41,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:59:41" (2/2) ... [2022-02-10 23:59:41,963 INFO L112 eAbstractionObserver]: Analyzing ICFG FischerWithBug.bpl [2022-02-10 23:59:41,966 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 23:59:41,966 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 23:59:41,966 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-02-10 23:59:41,967 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 23:59:42,024 WARN L322 ript$VariableManager]: TermVariable Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:59:42,025 WARN L322 ript$VariableManager]: TermVariable Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:59:42,025 WARN L322 ript$VariableManager]: TermVariable Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:59:42,026 WARN L322 ript$VariableManager]: TermVariable Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:59:42,026 WARN L322 ript$VariableManager]: TermVariable Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:59:42,026 WARN L322 ript$VariableManager]: TermVariable Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:59:42,026 WARN L322 ript$VariableManager]: TermVariable Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:59:42,027 WARN L322 ript$VariableManager]: TermVariable Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:59:42,028 WARN L322 ript$VariableManager]: TermVariable Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:59:42,028 WARN L322 ript$VariableManager]: TermVariable Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:59:42,029 WARN L322 ript$VariableManager]: TermVariable Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:59:42,029 WARN L322 ript$VariableManager]: TermVariable Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:59:42,029 WARN L322 ript$VariableManager]: TermVariable Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:59:42,029 WARN L322 ript$VariableManager]: TermVariable Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:59:42,030 WARN L322 ript$VariableManager]: TermVariable Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:59:42,030 WARN L322 ript$VariableManager]: TermVariable Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:59:42,034 WARN L322 ript$VariableManager]: TermVariable Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:59:42,034 WARN L322 ript$VariableManager]: TermVariable Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 23:59:42,035 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-10 23:59:42,096 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 23:59:42,102 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 [2022-02-10 23:59:42,103 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-02-10 23:59:42,123 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 46 transitions, 107 flow [2022-02-10 23:59:42,225 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1379 states, 1376 states have (on average 3.6119186046511627) internal successors, (4970), 1378 states have internal predecessors, (4970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,229 INFO L276 IsEmpty]: Start isEmpty. Operand has 1379 states, 1376 states have (on average 3.6119186046511627) internal successors, (4970), 1378 states have internal predecessors, (4970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-02-10 23:59:42,234 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:59:42,235 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:59:42,235 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting Process1Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-02-10 23:59:42,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:59:42,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1800631523, now seen corresponding path program 1 times [2022-02-10 23:59:42,245 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:59:42,245 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687332820] [2022-02-10 23:59:42,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:59:42,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:59:42,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:59:42,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:59:42,330 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:59:42,330 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687332820] [2022-02-10 23:59:42,331 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687332820] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:59:42,331 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:59:42,331 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-02-10 23:59:42,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783379629] [2022-02-10 23:59:42,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:59:42,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:59:42,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:59:42,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:59:42,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:59:42,358 INFO L87 Difference]: Start difference. First operand has 1379 states, 1376 states have (on average 3.6119186046511627) internal successors, (4970), 1378 states have internal predecessors, (4970), 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, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:59:42,402 INFO L93 Difference]: Finished difference Result 398 states and 1386 transitions. [2022-02-10 23:59:42,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:59:42,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-02-10 23:59:42,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:59:42,415 INFO L225 Difference]: With dead ends: 398 [2022-02-10 23:59:42,415 INFO L226 Difference]: Without dead ends: 398 [2022-02-10 23:59:42,416 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:59:42,418 INFO L934 BasicCegarLoop]: 34 mSDtfsCounter, 24 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:59:42,419 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 56 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:59:42,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-02-10 23:59:42,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 394. [2022-02-10 23:59:42,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 394 states have (on average 3.482233502538071) internal successors, (1372), 393 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1372 transitions. [2022-02-10 23:59:42,534 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1372 transitions. Word has length 8 [2022-02-10 23:59:42,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:59:42,535 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 1372 transitions. [2022-02-10 23:59:42,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,535 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1372 transitions. [2022-02-10 23:59:42,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-02-10 23:59:42,536 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:59:42,537 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:59:42,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 23:59:42,537 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-02-10 23:59:42,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:59:42,538 INFO L85 PathProgramCache]: Analyzing trace with hash -113097737, now seen corresponding path program 1 times [2022-02-10 23:59:42,538 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:59:42,538 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609161107] [2022-02-10 23:59:42,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:59:42,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:59:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:59:42,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:59:42,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:59:42,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609161107] [2022-02-10 23:59:42,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609161107] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:59:42,568 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:59:42,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:59:42,568 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422616036] [2022-02-10 23:59:42,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:59:42,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:59:42,569 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:59:42,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:59:42,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:59:42,569 INFO L87 Difference]: Start difference. First operand 394 states and 1372 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:59:42,601 INFO L93 Difference]: Finished difference Result 619 states and 2131 transitions. [2022-02-10 23:59:42,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:59:42,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-02-10 23:59:42,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:59:42,604 INFO L225 Difference]: With dead ends: 619 [2022-02-10 23:59:42,604 INFO L226 Difference]: Without dead ends: 523 [2022-02-10 23:59:42,604 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:59:42,605 INFO L934 BasicCegarLoop]: 44 mSDtfsCounter, 19 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:59:42,606 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 66 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:59:42,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-02-10 23:59:42,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 403. [2022-02-10 23:59:42,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 403 states have (on average 3.332506203473945) internal successors, (1343), 402 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 1343 transitions. [2022-02-10 23:59:42,621 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 1343 transitions. Word has length 12 [2022-02-10 23:59:42,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:59:42,621 INFO L470 AbstractCegarLoop]: Abstraction has 403 states and 1343 transitions. [2022-02-10 23:59:42,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,621 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 1343 transitions. [2022-02-10 23:59:42,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-02-10 23:59:42,622 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:59:42,623 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:59:42,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 23:59:42,623 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting Process1Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-02-10 23:59:42,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:59:42,623 INFO L85 PathProgramCache]: Analyzing trace with hash 498061947, now seen corresponding path program 1 times [2022-02-10 23:59:42,623 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:59:42,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202778390] [2022-02-10 23:59:42,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:59:42,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:59:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:59:42,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:59:42,639 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:59:42,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202778390] [2022-02-10 23:59:42,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202778390] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:59:42,639 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:59:42,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:59:42,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85354283] [2022-02-10 23:59:42,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:59:42,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:59:42,640 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:59:42,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:59:42,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:59:42,640 INFO L87 Difference]: Start difference. First operand 403 states and 1343 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:59:42,675 INFO L93 Difference]: Finished difference Result 511 states and 1701 transitions. [2022-02-10 23:59:42,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:59:42,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-02-10 23:59:42,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:59:42,678 INFO L225 Difference]: With dead ends: 511 [2022-02-10 23:59:42,679 INFO L226 Difference]: Without dead ends: 511 [2022-02-10 23:59:42,679 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:59:42,681 INFO L934 BasicCegarLoop]: 44 mSDtfsCounter, 19 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:59:42,682 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 63 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:59:42,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2022-02-10 23:59:42,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 459. [2022-02-10 23:59:42,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 459 states have (on average 3.318082788671024) internal successors, (1523), 458 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 1523 transitions. [2022-02-10 23:59:42,701 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 1523 transitions. Word has length 12 [2022-02-10 23:59:42,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:59:42,701 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 1523 transitions. [2022-02-10 23:59:42,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,702 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 1523 transitions. [2022-02-10 23:59:42,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-02-10 23:59:42,703 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:59:42,703 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:59:42,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 23:59:42,704 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-02-10 23:59:42,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:59:42,704 INFO L85 PathProgramCache]: Analyzing trace with hash 635584560, now seen corresponding path program 1 times [2022-02-10 23:59:42,704 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:59:42,704 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052943875] [2022-02-10 23:59:42,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:59:42,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:59:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:59:42,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:59:42,723 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:59:42,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052943875] [2022-02-10 23:59:42,723 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052943875] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:59:42,723 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:59:42,723 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:59:42,723 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586297266] [2022-02-10 23:59:42,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:59:42,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:59:42,724 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:59:42,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:59:42,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:59:42,724 INFO L87 Difference]: Start difference. First operand 459 states and 1523 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:59:42,745 INFO L93 Difference]: Finished difference Result 531 states and 1759 transitions. [2022-02-10 23:59:42,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:59:42,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2022-02-10 23:59:42,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:59:42,748 INFO L225 Difference]: With dead ends: 531 [2022-02-10 23:59:42,748 INFO L226 Difference]: Without dead ends: 531 [2022-02-10 23:59:42,748 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:59:42,749 INFO L934 BasicCegarLoop]: 38 mSDtfsCounter, 18 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:59:42,749 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 55 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:59:42,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-02-10 23:59:42,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 507. [2022-02-10 23:59:42,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 507 states have (on average 3.3037475345167655) internal successors, (1675), 506 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 1675 transitions. [2022-02-10 23:59:42,762 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 1675 transitions. Word has length 19 [2022-02-10 23:59:42,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:59:42,763 INFO L470 AbstractCegarLoop]: Abstraction has 507 states and 1675 transitions. [2022-02-10 23:59:42,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,763 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 1675 transitions. [2022-02-10 23:59:42,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-02-10 23:59:42,766 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:59:42,766 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:59:42,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 23:59:42,767 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting Process1Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-02-10 23:59:42,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:59:42,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1631235644, now seen corresponding path program 1 times [2022-02-10 23:59:42,768 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:59:42,768 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076197323] [2022-02-10 23:59:42,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:59:42,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:59:42,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:59:42,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:59:42,788 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:59:42,789 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076197323] [2022-02-10 23:59:42,789 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076197323] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:59:42,789 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:59:42,789 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-10 23:59:42,789 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618203002] [2022-02-10 23:59:42,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:59:42,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-10 23:59:42,790 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:59:42,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-10 23:59:42,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:59:42,790 INFO L87 Difference]: Start difference. First operand 507 states and 1675 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:59:42,813 INFO L93 Difference]: Finished difference Result 543 states and 1776 transitions. [2022-02-10 23:59:42,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-10 23:59:42,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2022-02-10 23:59:42,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:59:42,816 INFO L225 Difference]: With dead ends: 543 [2022-02-10 23:59:42,816 INFO L226 Difference]: Without dead ends: 447 [2022-02-10 23:59:42,816 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-10 23:59:42,817 INFO L934 BasicCegarLoop]: 49 mSDtfsCounter, 16 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:59:42,817 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 71 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:59:42,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-02-10 23:59:42,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 423. [2022-02-10 23:59:42,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 423 states have (on average 3.224586288416076) internal successors, (1364), 422 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 1364 transitions. [2022-02-10 23:59:42,827 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 1364 transitions. Word has length 19 [2022-02-10 23:59:42,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:59:42,827 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 1364 transitions. [2022-02-10 23:59:42,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,828 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 1364 transitions. [2022-02-10 23:59:42,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-02-10 23:59:42,828 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:59:42,829 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:59:42,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 23:59:42,829 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting Process1Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-02-10 23:59:42,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:59:42,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1965104845, now seen corresponding path program 1 times [2022-02-10 23:59:42,829 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:59:42,829 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120424838] [2022-02-10 23:59:42,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:59:42,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:59:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:59:42,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:59:42,894 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:59:42,894 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120424838] [2022-02-10 23:59:42,894 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120424838] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:59:42,894 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:59:42,894 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-10 23:59:42,894 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197888416] [2022-02-10 23:59:42,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:59:42,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 23:59:42,895 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:59:42,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 23:59:42,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-10 23:59:42,895 INFO L87 Difference]: Start difference. First operand 423 states and 1364 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:59:42,921 INFO L93 Difference]: Finished difference Result 444 states and 1408 transitions. [2022-02-10 23:59:42,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 23:59:42,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2022-02-10 23:59:42,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:59:42,923 INFO L225 Difference]: With dead ends: 444 [2022-02-10 23:59:42,923 INFO L226 Difference]: Without dead ends: 444 [2022-02-10 23:59:42,924 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 23:59:42,925 INFO L934 BasicCegarLoop]: 36 mSDtfsCounter, 29 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:59:42,927 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 61 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:59:42,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-02-10 23:59:42,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2022-02-10 23:59:42,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 444 states have (on average 3.171171171171171) internal successors, (1408), 443 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 1408 transitions. [2022-02-10 23:59:42,935 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 1408 transitions. Word has length 26 [2022-02-10 23:59:42,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:59:42,936 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 1408 transitions. [2022-02-10 23:59:42,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:42,936 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 1408 transitions. [2022-02-10 23:59:42,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-02-10 23:59:42,937 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:59:42,937 INFO L515 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:59:42,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-10 23:59:42,937 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting Process1Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-02-10 23:59:42,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:59:42,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1995369980, now seen corresponding path program 1 times [2022-02-10 23:59:42,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:59:42,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95996278] [2022-02-10 23:59:42,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:59:42,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:59:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 23:59:42,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 23:59:42,984 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 23:59:42,984 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95996278] [2022-02-10 23:59:42,984 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95996278] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 23:59:42,984 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 23:59:42,984 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-10 23:59:42,984 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013494987] [2022-02-10 23:59:42,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 23:59:42,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 23:59:42,985 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 23:59:42,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 23:59:42,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-10 23:59:42,985 INFO L87 Difference]: Start difference. First operand 444 states and 1408 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:43,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 23:59:43,018 INFO L93 Difference]: Finished difference Result 464 states and 1450 transitions. [2022-02-10 23:59:43,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 23:59:43,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2022-02-10 23:59:43,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 23:59:43,021 INFO L225 Difference]: With dead ends: 464 [2022-02-10 23:59:43,021 INFO L226 Difference]: Without dead ends: 464 [2022-02-10 23:59:43,021 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 23:59:43,022 INFO L934 BasicCegarLoop]: 36 mSDtfsCounter, 22 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 23:59:43,022 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 61 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 23:59:43,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-02-10 23:59:43,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2022-02-10 23:59:43,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 464 states have (on average 3.125) internal successors, (1450), 463 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:43,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 1450 transitions. [2022-02-10 23:59:43,031 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 1450 transitions. Word has length 27 [2022-02-10 23:59:43,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 23:59:43,031 INFO L470 AbstractCegarLoop]: Abstraction has 464 states and 1450 transitions. [2022-02-10 23:59:43,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 23:59:43,032 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 1450 transitions. [2022-02-10 23:59:43,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-02-10 23:59:43,032 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 23:59:43,033 INFO L515 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 23:59:43,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-10 23:59:43,033 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting Process1Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-02-10 23:59:43,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 23:59:43,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1212260121, now seen corresponding path program 2 times [2022-02-10 23:59:43,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 23:59:43,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785463057] [2022-02-10 23:59:43,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 23:59:43,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 23:59:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:59:43,041 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 23:59:43,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 23:59:43,059 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 23:59:43,059 INFO L629 BasicCegarLoop]: Counterexample is feasible [2022-02-10 23:59:43,060 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location Process1Err0ASSERT_VIOLATIONASSERT (6 of 7 remaining) [2022-02-10 23:59:43,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location Process2Err0ASSERT_VIOLATIONASSERT (5 of 7 remaining) [2022-02-10 23:59:43,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location Process1Err0ASSERT_VIOLATIONASSERT (4 of 7 remaining) [2022-02-10 23:59:43,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 7 remaining) [2022-02-10 23:59:43,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 7 remaining) [2022-02-10 23:59:43,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 7 remaining) [2022-02-10 23:59:43,061 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location Process2Err0ASSERT_VIOLATIONASSERT (0 of 7 remaining) [2022-02-10 23:59:43,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-10 23:59:43,063 INFO L733 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-02-10 23:59:43,066 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 23:59:43,066 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 23:59:43,087 INFO L202 PluginConnector]: Adding new model FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 11:59:43 BasicIcfg [2022-02-10 23:59:43,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 23:59:43,087 INFO L158 Benchmark]: Toolchain (without parser) took 1417.57ms. Allocated memory was 201.3MB in the beginning and 259.0MB in the end (delta: 57.7MB). Free memory was 159.0MB in the beginning and 133.5MB in the end (delta: 25.5MB). Peak memory consumption was 83.7MB. Max. memory is 8.0GB. [2022-02-10 23:59:43,088 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 201.3MB. Free memory is still 160.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 23:59:43,088 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.18ms. Allocated memory is still 201.3MB. Free memory was 158.9MB in the beginning and 157.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 23:59:43,088 INFO L158 Benchmark]: Boogie Preprocessor took 16.70ms. Allocated memory is still 201.3MB. Free memory was 157.4MB in the beginning and 156.5MB in the end (delta: 941.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 23:59:43,088 INFO L158 Benchmark]: RCFGBuilder took 215.19ms. Allocated memory is still 201.3MB. Free memory was 156.4MB in the beginning and 147.2MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-10 23:59:43,089 INFO L158 Benchmark]: TraceAbstraction took 1161.20ms. Allocated memory was 201.3MB in the beginning and 259.0MB in the end (delta: 57.7MB). Free memory was 146.7MB in the beginning and 133.5MB in the end (delta: 13.2MB). Peak memory consumption was 71.1MB. Max. memory is 8.0GB. [2022-02-10 23:59:43,090 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 0.09ms. Allocated memory is still 201.3MB. Free memory is still 160.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.18ms. Allocated memory is still 201.3MB. Free memory was 158.9MB in the beginning and 157.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.70ms. Allocated memory is still 201.3MB. Free memory was 157.4MB in the beginning and 156.5MB in the end (delta: 941.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 215.19ms. Allocated memory is still 201.3MB. Free memory was 156.4MB in the beginning and 147.2MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 1161.20ms. Allocated memory was 201.3MB in the beginning and 259.0MB in the end (delta: 57.7MB). Free memory was 146.7MB in the beginning and 133.5MB in the end (delta: 13.2MB). Peak memory consumption was 71.1MB. 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: 66]: assertion can be violated assertion can be violated We found a FailurePath: [L28] 0 critical := 0; VAL [critical=0] [L29] 0 clk := 0; VAL [clk=0, critical=0] [L30] 0 assume wait >= 1; VAL [clk=0, critical=0, wait=1] [L33] 0 assume wait >= delay; VAL [clk=0, critical=0, delay=1, wait=1] [L34] FORK 0 fork 0 Clock(); VAL [clk=0, critical=0, delay=1, wait=1] [L35] FORK 0 fork 1 Process1(); VAL [clk=0, critical=0, delay=1, wait=1] [L57] COND TRUE 2 lock != 1 VAL [clk=0, critical=0, delay=1, lock=0, wait=1] [L58] 2 deadline := clk + delay; VAL [clk=0, critical=0, deadline=1, delay=1, lock=0, wait=1] [L59] 2 assume lock == 0; VAL [clk=0, critical=0, deadline=1, delay=1, lock=0, wait=1] [L36] FORK 0 fork 2 Process2(); VAL [clk=0, critical=0, deadline=1, delay=1, lock=0, wait=1] [L78] COND TRUE 3 lock != 2 VAL [clk=0, critical=0, deadline=1, delay=1, lock=0, wait=1] [L79] 3 deadline := clk + delay; VAL [clk=0, critical=0, deadline=1, deadline=1, delay=1, lock=0, wait=1] [L80] 3 assume lock == 0; VAL [clk=0, critical=0, deadline=1, deadline=1, delay=1, lock=0, wait=1] [L60] 2 lock := 1; VAL [clk=0, critical=0, deadline=1, deadline=1, delay=1, lock=1, wait=1] [L61] 2 assume clk <= deadline; VAL [clk=0, critical=0, deadline=1, deadline=1, delay=1, lock=1, wait=1] [L62] 2 deadline := clk + wait; VAL [clk=0, critical=0, deadline=1, deadline=1, delay=1, lock=1, wait=1] [L44] 1 clk := clk + 1; VAL [clk=1, critical=0, deadline=1, deadline=1, delay=1, lock=1, wait=1] [L63] 2 assume clk >= deadline; VAL [clk=1, critical=0, deadline=1, deadline=1, delay=1, lock=1, wait=1] [L64] 2 assume lock == 1; VAL [clk=1, critical=0, deadline=1, deadline=1, delay=1, lock=1, wait=1] [L81] 3 lock := 2; VAL [clk=1, critical=0, deadline=1, deadline=1, delay=1, lock=2, wait=1] [L82] 3 assume clk <= deadline; VAL [clk=1, critical=0, deadline=1, deadline=1, delay=1, lock=2, wait=1] [L83] 3 deadline := clk + wait; VAL [clk=1, critical=0, deadline=2, deadline=1, delay=1, lock=2, wait=1] [L44] 1 clk := clk + 1; VAL [clk=2, critical=0, deadline=2, deadline=1, delay=1, lock=2, wait=1] [L84] 3 assume clk >= deadline; VAL [clk=2, critical=0, deadline=2, deadline=1, delay=1, lock=2, wait=1] [L85] 3 assume lock == 2; VAL [clk=2, critical=0, deadline=2, deadline=1, delay=1, lock=2, wait=1] [L87] 3 assert critical == 0; VAL [clk=2, critical=0, deadline=2, deadline=1, delay=1, lock=2, wait=1] [L88] 3 critical := 2; VAL [clk=2, critical=2, deadline=2, deadline=1, delay=1, lock=2, wait=1] [L66] 2 assert critical == 0; VAL [clk=2, critical=2, deadline=2, deadline=1, delay=1, lock=2, wait=1] - UnprovableResult [Line: 87]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 34]: 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: 35]: 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: 34]: 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 7 procedures, 78 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 147 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 147 mSDsluCounter, 433 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 169 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 128 IncrementalHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 281 mSDtfsCounter, 128 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1379occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 224 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 226 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-02-10 23:59:43,129 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...