/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/showcase/FischerWithBug.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 18:38:10,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 18:38:10,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 18:38:10,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-03 18:38:10,971 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 [2022-03-03 18:38:10,986 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 18:38:10,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 18:38:10,986 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 18:38:10,987 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 18:38:10,987 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 18:38:10,987 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 18:38:10,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 18:38:10,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 18:38:10,988 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 18:38:10,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 18:38:10,988 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 18:38:10,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 18:38:10,988 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 18:38:10,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 18:38:10,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 18:38:10,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 18:38:10,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 18:38:10,989 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 18:38:10,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 18:38:10,989 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 18:38:10,989 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 18:38:10,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 18:38:10,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 18:38:10,989 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 18:38:10,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 18:38:10,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 18:38:10,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 18:38:10,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 18:38:10,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 18:38:10,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 18:38:10,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 18:38:10,990 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 18:38:10,990 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 18:38:10,990 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 18:38:11,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 18:38:11,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 18:38:11,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 18:38:11,184 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-03 18:38:11,186 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-03 18:38:11,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/FischerWithBug.bpl [2022-03-03 18:38:11,187 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/FischerWithBug.bpl' [2022-03-03 18:38:11,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 18:38:11,209 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-03 18:38:11,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 18:38:11,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 18:38:11,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 18:38:11,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:38:11" (1/1) ... [2022-03-03 18:38:11,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:38:11" (1/1) ... [2022-03-03 18:38:11,227 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-03 18:38:11,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 18:38:11,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 18:38:11,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 18:38:11,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 18:38:11,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:38:11" (1/1) ... [2022-03-03 18:38:11,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:38:11" (1/1) ... [2022-03-03 18:38:11,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:38:11" (1/1) ... [2022-03-03 18:38:11,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:38:11" (1/1) ... [2022-03-03 18:38:11,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:38:11" (1/1) ... [2022-03-03 18:38:11,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:38:11" (1/1) ... [2022-03-03 18:38:11,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:38:11" (1/1) ... [2022-03-03 18:38:11,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 18:38:11,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 18:38:11,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 18:38:11,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 18:38:11,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:38:11" (1/1) ... [2022-03-03 18:38:11,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 18:38:11,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:38:11,259 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) [2022-03-03 18:38:11,267 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 [2022-03-03 18:38:11,289 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process2 given in one single declaration [2022-03-03 18:38:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure Process2 [2022-03-03 18:38:11,290 INFO L138 BoogieDeclarations]: Found implementation of procedure Process2 [2022-03-03 18:38:11,290 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process1 given in one single declaration [2022-03-03 18:38:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure Process1 [2022-03-03 18:38:11,290 INFO L138 BoogieDeclarations]: Found implementation of procedure Process1 [2022-03-03 18:38:11,290 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-03 18:38:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 18:38:11,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 18:38:11,290 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Clock given in one single declaration [2022-03-03 18:38:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure Clock [2022-03-03 18:38:11,290 INFO L138 BoogieDeclarations]: Found implementation of procedure Clock [2022-03-03 18:38:11,291 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 18:38:11,323 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 18:38:11,324 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 18:38:11,438 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 18:38:11,443 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 18:38:11,443 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-03-03 18:38:11,459 INFO L202 PluginConnector]: Adding new model FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 06:38:11 BoogieIcfgContainer [2022-03-03 18:38:11,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 18:38:11,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 18:38:11,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 18:38:11,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 18:38:11,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 06:38:11" (1/2) ... [2022-03-03 18:38:11,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601ee9c2 and model type FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 06:38:11, skipping insertion in model container [2022-03-03 18:38:11,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 06:38:11" (2/2) ... [2022-03-03 18:38:11,469 INFO L111 eAbstractionObserver]: Analyzing ICFG FischerWithBug.bpl [2022-03-03 18:38:11,477 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 18:38:11,477 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 18:38:11,477 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-03-03 18:38:11,478 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 18:38:11,525 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:38:11,525 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:38:11,526 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:38:11,526 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:38:11,526 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:38:11,526 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:38:11,527 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:38:11,527 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:38:11,528 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:38:11,528 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:38:11,529 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:38:11,529 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:38:11,529 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:38:11,529 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:38:11,530 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:38:11,530 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:38:11,534 WARN L322 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:38:11,534 WARN L322 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:38:11,535 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-03 18:38:11,614 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 18:38:11,618 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 [2022-03-03 18:38:11,618 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-03-03 18:38:11,630 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 46 transitions, 107 flow [2022-03-03 18:38:11,717 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) [2022-03-03 18:38:11,723 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) [2022-03-03 18:38:11,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-03-03 18:38:11,728 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:11,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:11,729 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting Process1Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:38:11,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:11,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1800631523, now seen corresponding path program 1 times [2022-03-03 18:38:11,742 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:11,743 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757263186] [2022-03-03 18:38:11,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:11,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:11,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:11,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:11,835 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:11,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757263186] [2022-03-03 18:38:11,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757263186] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:11,835 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:11,835 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-03 18:38:11,836 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615379067] [2022-03-03 18:38:11,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:11,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:38:11,839 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:11,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:38:11,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:38:11,861 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) [2022-03-03 18:38:11,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:11,899 INFO L93 Difference]: Finished difference Result 398 states and 1386 transitions. [2022-03-03 18:38:11,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:38:11,901 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 [2022-03-03 18:38:11,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:11,911 INFO L225 Difference]: With dead ends: 398 [2022-03-03 18:38:11,911 INFO L226 Difference]: Without dead ends: 398 [2022-03-03 18:38:11,912 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 [2022-03-03 18:38:11,914 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 [2022-03-03 18:38:11,915 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] [2022-03-03 18:38:11,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2022-03-03 18:38:11,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 394. [2022-03-03 18:38:11,997 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) [2022-03-03 18:38:11,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1372 transitions. [2022-03-03 18:38:12,000 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1372 transitions. Word has length 8 [2022-03-03 18:38:12,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:12,001 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 1372 transitions. [2022-03-03 18:38:12,001 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) [2022-03-03 18:38:12,001 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1372 transitions. [2022-03-03 18:38:12,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-03 18:38:12,002 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:12,003 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:12,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 18:38:12,003 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:38:12,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:12,004 INFO L85 PathProgramCache]: Analyzing trace with hash -113097737, now seen corresponding path program 1 times [2022-03-03 18:38:12,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:12,004 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463634600] [2022-03-03 18:38:12,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:12,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:12,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:12,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:12,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463634600] [2022-03-03 18:38:12,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463634600] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:12,023 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:12,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:38:12,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542708414] [2022-03-03 18:38:12,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:12,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:38:12,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:12,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:38:12,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:38:12,025 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) [2022-03-03 18:38:12,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:12,055 INFO L93 Difference]: Finished difference Result 619 states and 2131 transitions. [2022-03-03 18:38:12,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:38:12,055 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 [2022-03-03 18:38:12,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:12,059 INFO L225 Difference]: With dead ends: 619 [2022-03-03 18:38:12,059 INFO L226 Difference]: Without dead ends: 523 [2022-03-03 18:38:12,059 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 [2022-03-03 18:38:12,060 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 19 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:12,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 66 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:38:12,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2022-03-03 18:38:12,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 403. [2022-03-03 18:38:12,090 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) [2022-03-03 18:38:12,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 1343 transitions. [2022-03-03 18:38:12,101 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 1343 transitions. Word has length 12 [2022-03-03 18:38:12,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:12,101 INFO L470 AbstractCegarLoop]: Abstraction has 403 states and 1343 transitions. [2022-03-03 18:38:12,101 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) [2022-03-03 18:38:12,101 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 1343 transitions. [2022-03-03 18:38:12,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-03 18:38:12,102 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:12,103 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:12,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 18:38:12,103 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting Process1Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:38:12,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:12,103 INFO L85 PathProgramCache]: Analyzing trace with hash 498061947, now seen corresponding path program 1 times [2022-03-03 18:38:12,104 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:12,104 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444607630] [2022-03-03 18:38:12,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:12,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:12,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:12,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:12,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444607630] [2022-03-03 18:38:12,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444607630] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:12,120 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:12,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:38:12,121 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091190385] [2022-03-03 18:38:12,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:12,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:38:12,121 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:12,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:38:12,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:38:12,122 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) [2022-03-03 18:38:12,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:12,143 INFO L93 Difference]: Finished difference Result 511 states and 1701 transitions. [2022-03-03 18:38:12,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:38:12,144 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 [2022-03-03 18:38:12,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:12,146 INFO L225 Difference]: With dead ends: 511 [2022-03-03 18:38:12,146 INFO L226 Difference]: Without dead ends: 511 [2022-03-03 18:38:12,146 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 [2022-03-03 18:38:12,147 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 [2022-03-03 18:38:12,148 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] [2022-03-03 18:38:12,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2022-03-03 18:38:12,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 459. [2022-03-03 18:38:12,169 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) [2022-03-03 18:38:12,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 1523 transitions. [2022-03-03 18:38:12,171 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 1523 transitions. Word has length 12 [2022-03-03 18:38:12,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:12,171 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 1523 transitions. [2022-03-03 18:38:12,171 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) [2022-03-03 18:38:12,172 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 1523 transitions. [2022-03-03 18:38:12,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-03 18:38:12,175 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:12,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:12,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 18:38:12,175 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting Process2Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:38:12,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:12,176 INFO L85 PathProgramCache]: Analyzing trace with hash 635584560, now seen corresponding path program 1 times [2022-03-03 18:38:12,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:12,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510491024] [2022-03-03 18:38:12,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:12,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:12,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:12,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:12,202 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:12,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510491024] [2022-03-03 18:38:12,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510491024] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:12,203 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:12,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:38:12,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683323329] [2022-03-03 18:38:12,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:12,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:38:12,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:12,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:38:12,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:38:12,207 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) [2022-03-03 18:38:12,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:12,232 INFO L93 Difference]: Finished difference Result 531 states and 1759 transitions. [2022-03-03 18:38:12,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:38:12,232 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 [2022-03-03 18:38:12,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:12,234 INFO L225 Difference]: With dead ends: 531 [2022-03-03 18:38:12,234 INFO L226 Difference]: Without dead ends: 531 [2022-03-03 18:38:12,235 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 [2022-03-03 18:38:12,238 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 18 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:12,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 55 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:38:12,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-03-03 18:38:12,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 507. [2022-03-03 18:38:12,257 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) [2022-03-03 18:38:12,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 1675 transitions. [2022-03-03 18:38:12,259 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 1675 transitions. Word has length 19 [2022-03-03 18:38:12,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:12,259 INFO L470 AbstractCegarLoop]: Abstraction has 507 states and 1675 transitions. [2022-03-03 18:38:12,259 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) [2022-03-03 18:38:12,259 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 1675 transitions. [2022-03-03 18:38:12,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-03 18:38:12,264 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:12,264 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:12,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-03 18:38:12,264 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting Process1Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:38:12,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:12,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1631235644, now seen corresponding path program 1 times [2022-03-03 18:38:12,267 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:12,267 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035733268] [2022-03-03 18:38:12,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:12,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:12,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:12,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:12,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035733268] [2022-03-03 18:38:12,304 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035733268] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:12,304 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:12,304 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:38:12,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366275374] [2022-03-03 18:38:12,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:12,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:38:12,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:12,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:38:12,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:38:12,306 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) [2022-03-03 18:38:12,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:12,335 INFO L93 Difference]: Finished difference Result 543 states and 1776 transitions. [2022-03-03 18:38:12,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:38:12,336 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 [2022-03-03 18:38:12,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:12,338 INFO L225 Difference]: With dead ends: 543 [2022-03-03 18:38:12,338 INFO L226 Difference]: Without dead ends: 447 [2022-03-03 18:38:12,338 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 [2022-03-03 18:38:12,339 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 [2022-03-03 18:38:12,340 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] [2022-03-03 18:38:12,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-03-03 18:38:12,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 423. [2022-03-03 18:38:12,348 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) [2022-03-03 18:38:12,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 1364 transitions. [2022-03-03 18:38:12,350 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 1364 transitions. Word has length 19 [2022-03-03 18:38:12,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:12,350 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 1364 transitions. [2022-03-03 18:38:12,350 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) [2022-03-03 18:38:12,350 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 1364 transitions. [2022-03-03 18:38:12,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-03 18:38:12,351 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:12,351 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] [2022-03-03 18:38:12,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-03 18:38:12,351 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting Process1Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:38:12,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:12,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1965104845, now seen corresponding path program 1 times [2022-03-03 18:38:12,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:12,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452481087] [2022-03-03 18:38:12,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:12,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:12,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:12,393 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:12,393 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452481087] [2022-03-03 18:38:12,393 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452481087] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:12,393 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:12,393 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-03 18:38:12,393 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603388426] [2022-03-03 18:38:12,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:12,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-03 18:38:12,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:12,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-03 18:38:12,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-03 18:38:12,395 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) [2022-03-03 18:38:12,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:12,427 INFO L93 Difference]: Finished difference Result 444 states and 1408 transitions. [2022-03-03 18:38:12,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-03 18:38:12,427 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 [2022-03-03 18:38:12,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:12,429 INFO L225 Difference]: With dead ends: 444 [2022-03-03 18:38:12,429 INFO L226 Difference]: Without dead ends: 444 [2022-03-03 18:38:12,430 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 [2022-03-03 18:38:12,434 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 [2022-03-03 18:38:12,434 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] [2022-03-03 18:38:12,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-03-03 18:38:12,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2022-03-03 18:38:12,442 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) [2022-03-03 18:38:12,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 1408 transitions. [2022-03-03 18:38:12,444 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 1408 transitions. Word has length 26 [2022-03-03 18:38:12,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:12,444 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 1408 transitions. [2022-03-03 18:38:12,444 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) [2022-03-03 18:38:12,445 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 1408 transitions. [2022-03-03 18:38:12,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-03-03 18:38:12,445 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:12,446 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] [2022-03-03 18:38:12,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-03 18:38:12,446 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting Process1Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:38:12,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:12,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1995369980, now seen corresponding path program 1 times [2022-03-03 18:38:12,447 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:12,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89879855] [2022-03-03 18:38:12,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:12,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:38:12,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:38:12,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:38:12,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89879855] [2022-03-03 18:38:12,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89879855] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:38:12,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:38:12,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-03 18:38:12,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106985474] [2022-03-03 18:38:12,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:38:12,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-03 18:38:12,490 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:38:12,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-03 18:38:12,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-03 18:38:12,491 INFO L87 Difference]: Start difference. First operand 444 states and 1408 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:12,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:38:12,517 INFO L93 Difference]: Finished difference Result 464 states and 1450 transitions. [2022-03-03 18:38:12,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-03 18:38:12,517 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 [2022-03-03 18:38:12,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:38:12,519 INFO L225 Difference]: With dead ends: 464 [2022-03-03 18:38:12,519 INFO L226 Difference]: Without dead ends: 464 [2022-03-03 18:38:12,519 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 [2022-03-03 18:38:12,521 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 22 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:38:12,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 61 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:38:12,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-03-03 18:38:12,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2022-03-03 18:38:12,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 464 states have (on average 3.125) internal successors, (1450), 463 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:38:12,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 1450 transitions. [2022-03-03 18:38:12,532 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 1450 transitions. Word has length 27 [2022-03-03 18:38:12,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:38:12,532 INFO L470 AbstractCegarLoop]: Abstraction has 464 states and 1450 transitions. [2022-03-03 18:38:12,532 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) [2022-03-03 18:38:12,532 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 1450 transitions. [2022-03-03 18:38:12,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-03 18:38:12,533 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:38:12,533 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] [2022-03-03 18:38:12,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-03 18:38:12,533 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting Process1Err0ASSERT_VIOLATIONASSERT === [Process2Err0ASSERT_VIOLATIONASSERT, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 3 more)] === [2022-03-03 18:38:12,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:38:12,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1212260121, now seen corresponding path program 2 times [2022-03-03 18:38:12,535 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:38:12,535 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857783172] [2022-03-03 18:38:12,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:38:12,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:38:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-03 18:38:12,553 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-03 18:38:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-03 18:38:12,575 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-03 18:38:12,575 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-03 18:38:12,576 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location Process1Err0ASSERT_VIOLATIONASSERT (6 of 7 remaining) [2022-03-03 18:38:12,577 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location Process2Err0ASSERT_VIOLATIONASSERT (5 of 7 remaining) [2022-03-03 18:38:12,577 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location Process1Err0ASSERT_VIOLATIONASSERT (4 of 7 remaining) [2022-03-03 18:38:12,577 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 7 remaining) [2022-03-03 18:38:12,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 7 remaining) [2022-03-03 18:38:12,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 7 remaining) [2022-03-03 18:38:12,578 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location Process2Err0ASSERT_VIOLATIONASSERT (0 of 7 remaining) [2022-03-03 18:38:12,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-03 18:38:12,580 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-03-03 18:38:12,583 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-03 18:38:12,583 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-03 18:38:12,601 INFO L202 PluginConnector]: Adding new model FischerWithBug.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 06:38:12 BasicIcfg [2022-03-03 18:38:12,601 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-03 18:38:12,602 INFO L158 Benchmark]: Toolchain (without parser) took 1392.35ms. Allocated memory was 202.4MB in the beginning and 303.0MB in the end (delta: 100.7MB). Free memory was 162.4MB in the beginning and 180.7MB in the end (delta: -18.3MB). Peak memory consumption was 82.3MB. Max. memory is 8.0GB. [2022-03-03 18:38:12,602 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 202.4MB. Free memory is still 163.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 18:38:12,602 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.12ms. Allocated memory is still 202.4MB. Free memory was 162.3MB in the beginning and 160.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 18:38:12,602 INFO L158 Benchmark]: Boogie Preprocessor took 10.36ms. Allocated memory is still 202.4MB. Free memory was 160.8MB in the beginning and 159.8MB in the end (delta: 993.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-03 18:38:12,602 INFO L158 Benchmark]: RCFGBuilder took 220.14ms. Allocated memory is still 202.4MB. Free memory was 159.7MB in the beginning and 150.6MB in the end (delta: 9.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-03 18:38:12,603 INFO L158 Benchmark]: TraceAbstraction took 1140.46ms. Allocated memory was 202.4MB in the beginning and 303.0MB in the end (delta: 100.7MB). Free memory was 150.1MB in the beginning and 180.7MB in the end (delta: -30.6MB). Peak memory consumption was 69.7MB. Max. memory is 8.0GB. [2022-03-03 18:38:12,603 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11ms. Allocated memory is still 202.4MB. Free memory is still 163.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.12ms. Allocated memory is still 202.4MB. Free memory was 162.3MB in the beginning and 160.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.36ms. Allocated memory is still 202.4MB. Free memory was 160.8MB in the beginning and 159.8MB in the end (delta: 993.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 220.14ms. Allocated memory is still 202.4MB. Free memory was 159.7MB in the beginning and 150.6MB in the end (delta: 9.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 1140.46ms. Allocated memory was 202.4MB in the beginning and 303.0MB in the end (delta: 100.7MB). Free memory was 150.1MB in the beginning and 180.7MB in the end (delta: -30.6MB). Peak memory consumption was 69.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 66]: assertion can be violated assertion can be violated We found a FailurePath: [L28] 0 critical := 0; VAL [critical=0] [L29] 0 clk := 0; VAL [clk=0, critical=0] [L30] 0 assume wait >= 1; VAL [clk=0, critical=0, wait=1] [L33] 0 assume wait >= delay; VAL [clk=0, critical=0, delay=1, wait=1] [L34] FORK 0 fork 0 Clock(); VAL [clk=0, critical=0, delay=1, wait=1] [L35] FORK 0 fork 1 Process1(); VAL [clk=0, critical=0, delay=1, wait=1] [L57] COND TRUE 2 lock != 1 VAL [clk=0, critical=0, delay=1, lock=0, wait=1] [L58] 2 deadline := clk + delay; VAL [clk=0, critical=0, deadline=1, delay=1, lock=0, wait=1] [L59] 2 assume lock == 0; VAL [clk=0, critical=0, deadline=1, delay=1, lock=0, wait=1] [L36] FORK 0 fork 2 Process2(); VAL [clk=0, critical=0, deadline=1, delay=1, lock=0, wait=1] [L78] COND TRUE 3 lock != 2 VAL [clk=0, critical=0, deadline=1, delay=1, lock=0, wait=1] [L79] 3 deadline := clk + delay; VAL [clk=0, critical=0, deadline=1, deadline=1, delay=1, lock=0, wait=1] [L80] 3 assume lock == 0; VAL [clk=0, critical=0, deadline=1, deadline=1, delay=1, lock=0, wait=1] [L60] 2 lock := 1; VAL [clk=0, critical=0, deadline=1, deadline=1, delay=1, lock=1, wait=1] [L61] 2 assume clk <= deadline; VAL [clk=0, critical=0, deadline=1, deadline=1, delay=1, lock=1, wait=1] [L62] 2 deadline := clk + wait; VAL [clk=0, critical=0, deadline=1, deadline=1, delay=1, lock=1, wait=1] [L44] 1 clk := clk + 1; VAL [clk=1, critical=0, deadline=1, deadline=1, delay=1, lock=1, wait=1] [L63] 2 assume clk >= deadline; VAL [clk=1, critical=0, deadline=1, deadline=1, delay=1, lock=1, wait=1] [L64] 2 assume lock == 1; VAL [clk=1, critical=0, deadline=1, deadline=1, delay=1, lock=1, wait=1] [L81] 3 lock := 2; VAL [clk=1, critical=0, deadline=1, deadline=1, delay=1, lock=2, wait=1] [L82] 3 assume clk <= deadline; VAL [clk=1, critical=0, deadline=1, deadline=1, delay=1, lock=2, wait=1] [L83] 3 deadline := clk + wait; VAL [clk=1, critical=0, deadline=1, deadline=2, delay=1, lock=2, wait=1] [L44] 1 clk := clk + 1; VAL [clk=2, critical=0, deadline=1, deadline=2, delay=1, lock=2, wait=1] [L84] 3 assume clk >= deadline; VAL [clk=2, critical=0, deadline=1, deadline=2, delay=1, lock=2, wait=1] [L85] 3 assume lock == 2; VAL [clk=2, critical=0, deadline=1, deadline=2, delay=1, lock=2, wait=1] [L87] 3 assert critical == 0; VAL [clk=2, critical=0, deadline=1, deadline=2, delay=1, lock=2, wait=1] [L88] 3 critical := 2; VAL [clk=2, critical=2, deadline=1, deadline=2, delay=1, lock=2, wait=1] [L66] 2 assert critical == 0; VAL [clk=2, critical=2, deadline=1, deadline=2, delay=1, lock=2, wait=1] - UnprovableResult [Line: 87]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 35]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 78 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 147 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 147 mSDsluCounter, 433 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 169 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 128 IncrementalHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 281 mSDtfsCounter, 128 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1379occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 224 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 226 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-03-03 18:38:12,624 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...