/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/Fischer.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 15:23:39,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 15:23:39,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 15:23:39,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 15:23:39,860 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-15 15:23:39,885 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 15:23:39,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 15:23:39,886 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 15:23:39,886 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 15:23:39,887 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 15:23:39,887 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 15:23:39,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 15:23:39,888 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 15:23:39,888 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 15:23:39,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 15:23:39,889 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 15:23:39,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 15:23:39,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 15:23:39,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 15:23:39,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 15:23:39,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 15:23:39,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 15:23:39,890 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 15:23:39,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 15:23:39,890 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 15:23:39,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 15:23:39,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 15:23:39,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 15:23:39,891 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 15:23:39,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 15:23:39,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 15:23:39,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 15:23:39,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 15:23:39,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 15:23:39,893 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 15:23:39,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 15:23:39,893 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 15:23:39,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 15:23:39,893 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 15:23:40,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 15:23:40,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 15:23:40,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 15:23:40,143 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-15 15:23:40,144 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-15 15:23:40,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/Fischer.bpl [2022-03-15 15:23:40,145 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/Fischer.bpl' [2022-03-15 15:23:40,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 15:23:40,163 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-15 15:23:40,164 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 15:23:40,164 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 15:23:40,164 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 15:23:40,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:40" (1/1) ... [2022-03-15 15:23:40,180 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:40" (1/1) ... [2022-03-15 15:23:40,185 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-15 15:23:40,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 15:23:40,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 15:23:40,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 15:23:40,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 15:23:40,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:40" (1/1) ... [2022-03-15 15:23:40,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:40" (1/1) ... [2022-03-15 15:23:40,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:40" (1/1) ... [2022-03-15 15:23:40,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:40" (1/1) ... [2022-03-15 15:23:40,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:40" (1/1) ... [2022-03-15 15:23:40,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:40" (1/1) ... [2022-03-15 15:23:40,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:40" (1/1) ... [2022-03-15 15:23:40,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 15:23:40,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 15:23:40,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 15:23:40,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 15:23:40,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:40" (1/1) ... [2022-03-15 15:23:40,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 15:23:40,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 15:23:40,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 15:23:40,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 15:23:40,272 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process2 given in one single declaration [2022-03-15 15:23:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure Process2 [2022-03-15 15:23:40,272 INFO L138 BoogieDeclarations]: Found implementation of procedure Process2 [2022-03-15 15:23:40,272 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process1 given in one single declaration [2022-03-15 15:23:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure Process1 [2022-03-15 15:23:40,272 INFO L138 BoogieDeclarations]: Found implementation of procedure Process1 [2022-03-15 15:23:40,272 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-15 15:23:40,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 15:23:40,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 15:23:40,273 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Clock given in one single declaration [2022-03-15 15:23:40,273 INFO L130 BoogieDeclarations]: Found specification of procedure Clock [2022-03-15 15:23:40,273 INFO L138 BoogieDeclarations]: Found implementation of procedure Clock [2022-03-15 15:23:40,274 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 15:23:40,307 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 15:23:40,309 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 15:23:40,380 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 15:23:40,387 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 15:23:40,387 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-03-15 15:23:40,389 INFO L202 PluginConnector]: Adding new model Fischer.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:23:40 BoogieIcfgContainer [2022-03-15 15:23:40,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 15:23:40,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 15:23:40,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 15:23:40,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 15:23:40,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 03:23:40" (1/2) ... [2022-03-15 15:23:40,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc0a8b4 and model type Fischer.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 03:23:40, skipping insertion in model container [2022-03-15 15:23:40,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Fischer.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:23:40" (2/2) ... [2022-03-15 15:23:40,420 INFO L111 eAbstractionObserver]: Analyzing ICFG Fischer.bpl [2022-03-15 15:23:40,424 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 15:23:40,424 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 15:23:40,424 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-03-15 15:23:40,424 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 15:23:40,459 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:40,459 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:40,460 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:40,461 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:40,461 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:40,462 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:40,462 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:40,462 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:40,463 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:40,464 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:40,465 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:40,465 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:40,466 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:40,466 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:40,466 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:40,466 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:40,473 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:40,473 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 15:23:40,474 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-15 15:23:40,523 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 15:23:40,528 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 15:23:40,528 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-03-15 15:23:40,538 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 46 transitions, 107 flow [2022-03-15 15:23:40,686 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) [2022-03-15 15:23:40,691 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) [2022-03-15 15:23:40,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-03-15 15:23:40,697 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:40,699 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:40,700 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting Process1Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-03-15 15:23:40,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:40,709 INFO L85 PathProgramCache]: Analyzing trace with hash 183469793, now seen corresponding path program 1 times [2022-03-15 15:23:40,722 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:40,722 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456296862] [2022-03-15 15:23:40,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:40,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:40,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:40,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:40,813 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:40,813 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456296862] [2022-03-15 15:23:40,814 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456296862] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:40,814 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:40,814 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 15:23:40,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235037513] [2022-03-15 15:23:40,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:40,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 15:23:40,820 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:40,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 15:23:40,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:23:40,848 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) [2022-03-15 15:23:40,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:40,912 INFO L93 Difference]: Finished difference Result 398 states and 1386 transitions. [2022-03-15 15:23:40,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 15:23:40,915 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 [2022-03-15 15:23:40,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:40,929 INFO L225 Difference]: With dead ends: 398 [2022-03-15 15:23:40,929 INFO L226 Difference]: Without dead ends: 398 [2022-03-15 15:23:40,931 INFO L932 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 [2022-03-15 15:23:40,934 INFO L933 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 [2022-03-15 15:23:40,935 INFO L934 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] [2022-03-15 15:23:40,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-03-15 15:23:40,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 394. [2022-03-15 15:23:40,998 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) [2022-03-15 15:23:41,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1372 transitions. [2022-03-15 15:23:41,028 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1372 transitions. Word has length 8 [2022-03-15 15:23:41,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:41,029 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 1372 transitions. [2022-03-15 15:23:41,029 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) [2022-03-15 15:23:41,030 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1372 transitions. [2022-03-15 15:23:41,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-15 15:23:41,031 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:41,032 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:41,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 15:23:41,032 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-03-15 15:23:41,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:41,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1752162537, now seen corresponding path program 1 times [2022-03-15 15:23:41,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:41,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590395195] [2022-03-15 15:23:41,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:41,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:41,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:41,074 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:41,074 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590395195] [2022-03-15 15:23:41,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590395195] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:41,075 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:41,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:23:41,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170148619] [2022-03-15 15:23:41,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:41,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 15:23:41,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:41,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 15:23:41,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:23:41,077 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) [2022-03-15 15:23:41,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:41,129 INFO L93 Difference]: Finished difference Result 619 states and 2131 transitions. [2022-03-15 15:23:41,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 15:23:41,130 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 [2022-03-15 15:23:41,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:41,135 INFO L225 Difference]: With dead ends: 619 [2022-03-15 15:23:41,136 INFO L226 Difference]: Without dead ends: 523 [2022-03-15 15:23:41,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:23:41,137 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 20 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 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 [2022-03-15 15:23:41,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 66 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:23:41,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-03-15 15:23:41,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 403. [2022-03-15 15:23:41,160 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) [2022-03-15 15:23:41,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 1343 transitions. [2022-03-15 15:23:41,163 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 1343 transitions. Word has length 12 [2022-03-15 15:23:41,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:41,163 INFO L470 AbstractCegarLoop]: Abstraction has 403 states and 1343 transitions. [2022-03-15 15:23:41,164 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) [2022-03-15 15:23:41,164 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 1343 transitions. [2022-03-15 15:23:41,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-15 15:23:41,165 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:41,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:41,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 15:23:41,166 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-03-15 15:23:41,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:41,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1932070039, now seen corresponding path program 2 times [2022-03-15 15:23:41,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:41,171 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112225262] [2022-03-15 15:23:41,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:41,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:41,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:41,192 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:41,192 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112225262] [2022-03-15 15:23:41,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112225262] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:41,193 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:41,193 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:23:41,193 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053603484] [2022-03-15 15:23:41,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:41,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 15:23:41,194 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:41,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 15:23:41,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:23:41,195 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) [2022-03-15 15:23:41,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:41,228 INFO L93 Difference]: Finished difference Result 511 states and 1701 transitions. [2022-03-15 15:23:41,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 15:23:41,229 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 [2022-03-15 15:23:41,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:41,232 INFO L225 Difference]: With dead ends: 511 [2022-03-15 15:23:41,232 INFO L226 Difference]: Without dead ends: 511 [2022-03-15 15:23:41,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:23:41,234 INFO L933 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 [2022-03-15 15:23:41,234 INFO L934 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] [2022-03-15 15:23:41,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2022-03-15 15:23:41,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 459. [2022-03-15 15:23:41,254 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) [2022-03-15 15:23:41,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 1523 transitions. [2022-03-15 15:23:41,256 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 1523 transitions. Word has length 12 [2022-03-15 15:23:41,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:41,257 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 1523 transitions. [2022-03-15 15:23:41,257 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) [2022-03-15 15:23:41,257 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 1523 transitions. [2022-03-15 15:23:41,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 15:23:41,259 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:41,259 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:41,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 15:23:41,260 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-03-15 15:23:41,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:41,261 INFO L85 PathProgramCache]: Analyzing trace with hash -740149406, now seen corresponding path program 1 times [2022-03-15 15:23:41,261 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:41,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205220815] [2022-03-15 15:23:41,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:41,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:41,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:41,294 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:41,295 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205220815] [2022-03-15 15:23:41,295 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205220815] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:41,295 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:41,295 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:23:41,295 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212126403] [2022-03-15 15:23:41,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:41,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 15:23:41,296 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:41,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 15:23:41,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:23:41,297 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) [2022-03-15 15:23:41,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:41,337 INFO L93 Difference]: Finished difference Result 531 states and 1759 transitions. [2022-03-15 15:23:41,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 15:23:41,338 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 [2022-03-15 15:23:41,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:41,341 INFO L225 Difference]: With dead ends: 531 [2022-03-15 15:23:41,341 INFO L226 Difference]: Without dead ends: 531 [2022-03-15 15:23:41,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:23:41,351 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 19 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 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 [2022-03-15 15:23:41,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 55 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:23:41,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-03-15 15:23:41,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 507. [2022-03-15 15:23:41,373 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) [2022-03-15 15:23:41,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 1675 transitions. [2022-03-15 15:23:41,376 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 1675 transitions. Word has length 19 [2022-03-15 15:23:41,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:41,377 INFO L470 AbstractCegarLoop]: Abstraction has 507 states and 1675 transitions. [2022-03-15 15:23:41,378 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) [2022-03-15 15:23:41,378 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 1675 transitions. [2022-03-15 15:23:41,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 15:23:41,382 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:41,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:41,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 15:23:41,383 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-03-15 15:23:41,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:41,386 INFO L85 PathProgramCache]: Analyzing trace with hash -739839242, now seen corresponding path program 2 times [2022-03-15 15:23:41,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:41,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289069506] [2022-03-15 15:23:41,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:41,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:41,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:41,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:41,426 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:41,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289069506] [2022-03-15 15:23:41,427 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289069506] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:41,427 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:41,427 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 15:23:41,427 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750866402] [2022-03-15 15:23:41,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:41,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 15:23:41,428 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:41,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 15:23:41,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:23:41,429 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) [2022-03-15 15:23:41,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:41,457 INFO L93 Difference]: Finished difference Result 543 states and 1776 transitions. [2022-03-15 15:23:41,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 15:23:41,458 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 [2022-03-15 15:23:41,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:41,461 INFO L225 Difference]: With dead ends: 543 [2022-03-15 15:23:41,461 INFO L226 Difference]: Without dead ends: 447 [2022-03-15 15:23:41,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 15:23:41,462 INFO L933 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 [2022-03-15 15:23:41,463 INFO L934 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] [2022-03-15 15:23:41,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-03-15 15:23:41,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 423. [2022-03-15 15:23:41,476 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) [2022-03-15 15:23:41,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 1364 transitions. [2022-03-15 15:23:41,479 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 1364 transitions. Word has length 19 [2022-03-15 15:23:41,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:41,480 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 1364 transitions. [2022-03-15 15:23:41,483 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) [2022-03-15 15:23:41,487 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 1364 transitions. [2022-03-15 15:23:41,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-15 15:23:41,488 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:41,488 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:41,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 15:23:41,489 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-03-15 15:23:41,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:41,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1527115169, now seen corresponding path program 1 times [2022-03-15 15:23:41,490 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:41,490 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872003257] [2022-03-15 15:23:41,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:41,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:41,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:41,562 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:41,562 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872003257] [2022-03-15 15:23:41,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872003257] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:41,562 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:41,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 15:23:41,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711507457] [2022-03-15 15:23:41,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:41,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 15:23:41,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:41,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 15:23:41,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 15:23:41,565 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) [2022-03-15 15:23:41,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:41,608 INFO L93 Difference]: Finished difference Result 444 states and 1408 transitions. [2022-03-15 15:23:41,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 15:23:41,609 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 [2022-03-15 15:23:41,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:41,612 INFO L225 Difference]: With dead ends: 444 [2022-03-15 15:23:41,612 INFO L226 Difference]: Without dead ends: 444 [2022-03-15 15:23:41,612 INFO L932 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 [2022-03-15 15:23:41,615 INFO L933 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 [2022-03-15 15:23:41,615 INFO L934 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] [2022-03-15 15:23:41,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-03-15 15:23:41,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2022-03-15 15:23:41,628 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) [2022-03-15 15:23:41,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 1408 transitions. [2022-03-15 15:23:41,631 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 1408 transitions. Word has length 26 [2022-03-15 15:23:41,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:41,631 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 1408 transitions. [2022-03-15 15:23:41,631 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) [2022-03-15 15:23:41,631 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 1408 transitions. [2022-03-15 15:23:41,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 15:23:41,633 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:41,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:41,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 15:23:41,633 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-03-15 15:23:41,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:41,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1111207626, now seen corresponding path program 1 times [2022-03-15 15:23:41,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:41,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766963683] [2022-03-15 15:23:41,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:41,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:41,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:41,743 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:41,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766963683] [2022-03-15 15:23:41,743 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766963683] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:41,743 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:41,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 15:23:41,744 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769058340] [2022-03-15 15:23:41,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:41,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 15:23:41,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:41,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 15:23:41,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-15 15:23:41,745 INFO L87 Difference]: Start difference. First operand 444 states and 1408 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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) [2022-03-15 15:23:41,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:41,855 INFO L93 Difference]: Finished difference Result 514 states and 1595 transitions. [2022-03-15 15:23:41,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 15:23:41,855 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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 [2022-03-15 15:23:41,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:41,858 INFO L225 Difference]: With dead ends: 514 [2022-03-15 15:23:41,858 INFO L226 Difference]: Without dead ends: 430 [2022-03-15 15:23:41,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:41,860 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 61 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:41,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 149 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 15:23:41,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-03-15 15:23:41,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2022-03-15 15:23:41,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 430 states have (on average 3.1790697674418604) internal successors, (1367), 429 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:41,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1367 transitions. [2022-03-15 15:23:41,874 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1367 transitions. Word has length 27 [2022-03-15 15:23:41,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:41,875 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 1367 transitions. [2022-03-15 15:23:41,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 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) [2022-03-15 15:23:41,875 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1367 transitions. [2022-03-15 15:23:41,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-15 15:23:41,876 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:41,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 15:23:41,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 15:23:41,876 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-03-15 15:23:41,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:41,878 INFO L85 PathProgramCache]: Analyzing trace with hash 570052842, now seen corresponding path program 2 times [2022-03-15 15:23:41,878 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:41,878 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818363758] [2022-03-15 15:23:41,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:41,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:41,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:41,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:41,925 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:41,925 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818363758] [2022-03-15 15:23:41,925 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818363758] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:41,925 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:41,925 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 15:23:41,925 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660192537] [2022-03-15 15:23:41,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:41,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 15:23:41,926 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:41,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 15:23:41,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 15:23:41,926 INFO L87 Difference]: Start difference. First operand 430 states and 1367 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) [2022-03-15 15:23:41,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:41,951 INFO L93 Difference]: Finished difference Result 450 states and 1409 transitions. [2022-03-15 15:23:41,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 15:23:41,952 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 [2022-03-15 15:23:41,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:41,955 INFO L225 Difference]: With dead ends: 450 [2022-03-15 15:23:41,955 INFO L226 Difference]: Without dead ends: 450 [2022-03-15 15:23:41,955 INFO L932 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 [2022-03-15 15:23:41,956 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 28 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 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 [2022-03-15 15:23:41,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 61 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:23:41,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-03-15 15:23:41,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2022-03-15 15:23:41,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 450 states have (on average 3.131111111111111) internal successors, (1409), 449 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:41,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 1409 transitions. [2022-03-15 15:23:41,974 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 1409 transitions. Word has length 27 [2022-03-15 15:23:41,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:41,975 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 1409 transitions. [2022-03-15 15:23:41,975 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) [2022-03-15 15:23:41,975 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 1409 transitions. [2022-03-15 15:23:41,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-15 15:23:41,976 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 15:23:41,977 INFO L514 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] [2022-03-15 15:23:41,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 15:23:41,977 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-03-15 15:23:41,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 15:23:41,978 INFO L85 PathProgramCache]: Analyzing trace with hash -194244139, now seen corresponding path program 3 times [2022-03-15 15:23:41,978 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 15:23:41,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831040891] [2022-03-15 15:23:41,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 15:23:41,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 15:23:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 15:23:42,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 15:23:42,039 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 15:23:42,040 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831040891] [2022-03-15 15:23:42,040 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831040891] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 15:23:42,040 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 15:23:42,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 15:23:42,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644597133] [2022-03-15 15:23:42,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 15:23:42,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 15:23:42,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 15:23:42,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 15:23:42,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-15 15:23:42,042 INFO L87 Difference]: Start difference. First operand 450 states and 1409 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:42,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 15:23:42,133 INFO L93 Difference]: Finished difference Result 244 states and 724 transitions. [2022-03-15 15:23:42,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 15:23:42,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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 28 [2022-03-15 15:23:42,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 15:23:42,135 INFO L225 Difference]: With dead ends: 244 [2022-03-15 15:23:42,135 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 15:23:42,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-03-15 15:23:42,138 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 62 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 15:23:42,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 139 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 15:23:42,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 15:23:42,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 15:23:42,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:42,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 15:23:42,139 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2022-03-15 15:23:42,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 15:23:42,139 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 15:23:42,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 15:23:42,139 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 15:23:42,139 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 15:23:42,141 INFO L764 garLoopResultBuilder]: Registering result SAFE for location Process2Err0ASSERT_VIOLATIONASSERT (6 of 7 remaining) [2022-03-15 15:23:42,142 INFO L764 garLoopResultBuilder]: Registering result SAFE for location Process1Err0ASSERT_VIOLATIONASSERT (5 of 7 remaining) [2022-03-15 15:23:42,142 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 7 remaining) [2022-03-15 15:23:42,142 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (3 of 7 remaining) [2022-03-15 15:23:42,142 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (2 of 7 remaining) [2022-03-15 15:23:42,142 INFO L764 garLoopResultBuilder]: Registering result SAFE for location Process2Err0ASSERT_VIOLATIONASSERT (1 of 7 remaining) [2022-03-15 15:23:42,143 INFO L764 garLoopResultBuilder]: Registering result SAFE for location Process1Err0ASSERT_VIOLATIONASSERT (0 of 7 remaining) [2022-03-15 15:23:42,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 15:23:42,145 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1] [2022-03-15 15:23:42,148 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 15:23:42,149 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 15:23:42,151 INFO L202 PluginConnector]: Adding new model Fischer.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 03:23:42 BasicIcfg [2022-03-15 15:23:42,152 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 15:23:42,152 INFO L158 Benchmark]: Toolchain (without parser) took 1988.77ms. Allocated memory was 175.1MB in the beginning and 266.3MB in the end (delta: 91.2MB). Free memory was 133.0MB in the beginning and 121.6MB in the end (delta: 11.4MB). Peak memory consumption was 102.6MB. Max. memory is 8.0GB. [2022-03-15 15:23:42,152 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 175.1MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 15:23:42,153 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.14ms. Allocated memory is still 175.1MB. Free memory was 132.9MB in the beginning and 131.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 15:23:42,153 INFO L158 Benchmark]: Boogie Preprocessor took 12.84ms. Allocated memory is still 175.1MB. Free memory was 131.4MB in the beginning and 130.4MB in the end (delta: 971.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 15:23:42,153 INFO L158 Benchmark]: RCFGBuilder took 188.70ms. Allocated memory is still 175.1MB. Free memory was 130.3MB in the beginning and 121.2MB in the end (delta: 9.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-15 15:23:42,153 INFO L158 Benchmark]: TraceAbstraction took 1760.91ms. Allocated memory was 175.1MB in the beginning and 266.3MB in the end (delta: 91.2MB). Free memory was 120.6MB in the beginning and 121.6MB in the end (delta: -917.1kB). Peak memory consumption was 90.0MB. Max. memory is 8.0GB. [2022-03-15 15:23:42,155 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 0.12ms. Allocated memory is still 175.1MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.14ms. Allocated memory is still 175.1MB. Free memory was 132.9MB in the beginning and 131.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.84ms. Allocated memory is still 175.1MB. Free memory was 131.4MB in the beginning and 130.4MB in the end (delta: 971.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 188.70ms. Allocated memory is still 175.1MB. Free memory was 130.3MB in the beginning and 121.2MB in the end (delta: 9.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 1760.91ms. Allocated memory was 175.1MB in the beginning and 266.3MB in the end (delta: 91.2MB). Free memory was 120.6MB in the beginning and 121.6MB in the end (delta: -917.1kB). Peak memory consumption was 90.0MB. 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 - PositiveResult [Line: 78]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 57]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 78 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 278 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 278 mSDsluCounter, 721 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 369 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 270 IncrementalHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 380 mSDtfsCounter, 270 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1379occurred in iteration=0, InterpolantAutomatonStates: 37, 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, 9 MinimizatonAttempts, 224 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 178 NumberOfCodeBlocks, 178 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 169 ConstructedInterpolants, 0 QuantifiedInterpolants, 423 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 1/1 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-15 15:23:42,191 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...