/usr/bin/java -Xmx16000000000 -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-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy7.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 08:11:18,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 08:11:18,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 08:11:18,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 08:11:18,196 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 08:11:18,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 08:11:18,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 08:11:18,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 08:11:18,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 08:11:18,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 08:11:18,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 08:11:18,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 08:11:18,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 08:11:18,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 08:11:18,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 08:11:18,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 08:11:18,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 08:11:18,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 08:11:18,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 08:11:18,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 08:11:18,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 08:11:18,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 08:11:18,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 08:11:18,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 08:11:18,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 08:11:18,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 08:11:18,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 08:11:18,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 08:11:18,280 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-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 08:11:18,343 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 08:11:18,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 08:11:18,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 08:11:18,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 08:11:18,349 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 08:11:18,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 08:11:18,350 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 08:11:18,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 08:11:18,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 08:11:18,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 08:11:18,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 08:11:18,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 08:11:18,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 08:11:18,352 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 08:11:18,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 08:11:18,353 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 08:11:18,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 08:11:18,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 08:11:18,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 08:11:18,353 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 08:11:18,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 08:11:18,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 08:11:18,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 08:11:18,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 08:11:18,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 08:11:18,355 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 08:11:18,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 08:11:18,355 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 08:11:18,356 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 08:11:18,357 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 08:11:18,357 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 08:11:18,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 08:11:18,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 08:11:18,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 08:11:18,831 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-04-29 08:11:18,832 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-04-29 08:11:18,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy7.wvr.bpl [2021-04-29 08:11:18,835 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy7.wvr.bpl' [2021-04-29 08:11:18,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 08:11:18,932 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-29 08:11:18,937 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 08:11:18,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 08:11:18,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 08:11:18,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 08:11:18" (1/1) ... [2021-04-29 08:11:18,960 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 08:11:18" (1/1) ... [2021-04-29 08:11:18,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 08:11:18,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 08:11:18,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 08:11:18,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 08:11:18,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 08:11:18" (1/1) ... [2021-04-29 08:11:18,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 08:11:18" (1/1) ... [2021-04-29 08:11:18,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 08:11:18" (1/1) ... [2021-04-29 08:11:18,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 08:11:18" (1/1) ... [2021-04-29 08:11:18,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 08:11:18" (1/1) ... [2021-04-29 08:11:18,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 08:11:18" (1/1) ... [2021-04-29 08:11:18,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 08:11:18" (1/1) ... [2021-04-29 08:11:18,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 08:11:18,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 08:11:18,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 08:11:18,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 08:11:18,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 08:11:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 08:11:19,082 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-04-29 08:11:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-04-29 08:11:19,082 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-04-29 08:11:19,083 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-04-29 08:11:19,083 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-04-29 08:11:19,083 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-04-29 08:11:19,083 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-04-29 08:11:19,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 08:11:19,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 08:11:19,085 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 08:11:19,255 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 08:11:19,255 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-04-29 08:11:19,257 INFO L202 PluginConnector]: Adding new model easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 08:11:19 BoogieIcfgContainer [2021-04-29 08:11:19,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 08:11:19,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 08:11:19,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 08:11:19,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 08:11:19,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 08:11:18" (1/2) ... [2021-04-29 08:11:19,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8cb945c and model type easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 08:11:19, skipping insertion in model container [2021-04-29 08:11:19,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 08:11:19" (2/2) ... [2021-04-29 08:11:19,266 INFO L111 eAbstractionObserver]: Analyzing ICFG easy7.wvr.bpl [2021-04-29 08:11:19,272 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 08:11:19,277 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 08:11:19,278 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 08:11:19,313 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-04-29 08:11:19,334 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-29 08:11:19,360 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 08:11:19,361 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 08:11:19,361 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 08:11:19,361 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 08:11:19,361 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 08:11:19,361 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 08:11:19,361 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 08:11:19,361 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 08:11:19,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 21 transitions, 58 flow [2021-04-29 08:11:19,402 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-04-29 08:11:19,402 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 08:11:19,408 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 19 events. 0/19 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 12 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 08:11:19,408 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 21 transitions, 58 flow [2021-04-29 08:11:19,413 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 17 transitions, 46 flow [2021-04-29 08:11:19,415 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 08:11:19,434 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 17 transitions, 46 flow [2021-04-29 08:11:19,438 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 17 transitions, 46 flow [2021-04-29 08:11:19,440 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 17 transitions, 46 flow [2021-04-29 08:11:19,449 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-04-29 08:11:19,450 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 08:11:19,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 17 events. 0/17 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 08:11:19,452 INFO L146 LiptonReduction]: Number of co-enabled transitions 70 [2021-04-29 08:11:19,807 INFO L158 LiptonReduction]: Checked pairs total: 79 [2021-04-29 08:11:19,807 INFO L160 LiptonReduction]: Total number of compositions: 14 [2021-04-29 08:11:19,811 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 398 [2021-04-29 08:11:19,833 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-04-29 08:11:19,833 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 08:11:19,834 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 08:11:19,835 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 08:11:19,835 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 08:11:19,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 08:11:19,865 INFO L82 PathProgramCache]: Analyzing trace with hash 65712639, now seen corresponding path program 1 times [2021-04-29 08:11:19,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 08:11:19,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142063024] [2021-04-29 08:11:19,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 08:11:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 08:11:20,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 08:11:20,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 08:11:20,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 08:11:20,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-29 08:11:20,105 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-29 08:11:20,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 08:11:20,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 08:11:20,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142063024] [2021-04-29 08:11:20,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 08:11:20,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 08:11:20,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195617977] [2021-04-29 08:11:20,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 08:11:20,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 08:11:20,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 08:11:20,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 08:11:20,147 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 35 [2021-04-29 08:11:20,152 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2021-04-29 08:11:20,152 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 08:11:20,152 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 35 [2021-04-29 08:11:20,154 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 08:11:20,261 INFO L129 PetriNetUnfolder]: 26/81 cut-off events. [2021-04-29 08:11:20,262 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-04-29 08:11:20,264 INFO L84 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 81 events. 26/81 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 386 event pairs, 0 based on Foata normal form. 1/19 useless extension candidates. Maximal degree in co-relation 148. Up to 68 conditions per place. [2021-04-29 08:11:20,266 INFO L132 encePairwiseOnDemand]: 22/35 looper letters, 2 selfloop transitions, 2 changer transitions 26/34 dead transitions. [2021-04-29 08:11:20,267 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 34 transitions, 140 flow [2021-04-29 08:11:20,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 08:11:20,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 08:11:20,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2021-04-29 08:11:20,285 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5 [2021-04-29 08:11:20,287 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 70 transitions. [2021-04-29 08:11:20,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 70 transitions. [2021-04-29 08:11:20,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 08:11:20,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 70 transitions. [2021-04-29 08:11:20,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) [2021-04-29 08:11:20,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 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) [2021-04-29 08:11:20,300 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 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) [2021-04-29 08:11:20,302 INFO L185 Difference]: Start difference. First operand has 25 places, 18 transitions, 48 flow. Second operand 4 states and 70 transitions. [2021-04-29 08:11:20,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 34 transitions, 140 flow [2021-04-29 08:11:20,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 34 transitions, 132 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-29 08:11:20,310 INFO L241 Difference]: Finished difference. Result has 25 places, 8 transitions, 30 flow [2021-04-29 08:11:20,312 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=30, PETRI_PLACES=25, PETRI_TRANSITIONS=8} [2021-04-29 08:11:20,313 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 0 predicate places. [2021-04-29 08:11:20,313 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 08:11:20,313 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 8 transitions, 30 flow [2021-04-29 08:11:20,314 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 8 transitions, 30 flow [2021-04-29 08:11:20,314 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 14 places, 8 transitions, 30 flow [2021-04-29 08:11:20,317 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-04-29 08:11:20,318 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 08:11:20,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18 conditions, 8 events. 0/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-29 08:11:20,318 INFO L146 LiptonReduction]: Number of co-enabled transitions 4 [2021-04-29 08:11:20,319 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 08:11:20,319 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 08:11:20,320 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-04-29 08:11:20,321 INFO L480 AbstractCegarLoop]: Abstraction has has 14 places, 8 transitions, 30 flow [2021-04-29 08:11:20,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2021-04-29 08:11:20,322 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 08:11:20,322 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 08:11:20,322 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 08:11:20,323 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 08:11:20,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 08:11:20,323 INFO L82 PathProgramCache]: Analyzing trace with hash 62598999, now seen corresponding path program 2 times [2021-04-29 08:11:20,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 08:11:20,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487786901] [2021-04-29 08:11:20,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 08:11:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 08:11:20,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 08:11:20,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 08:11:20,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 08:11:20,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-29 08:11:20,387 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-04-29 08:11:20,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 08:11:20,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 08:11:20,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487786901] [2021-04-29 08:11:20,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 08:11:20,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 08:11:20,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963019303] [2021-04-29 08:11:20,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 08:11:20,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 08:11:20,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 08:11:20,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 08:11:20,402 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 35 [2021-04-29 08:11:20,402 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 8 transitions, 30 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2021-04-29 08:11:20,403 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 08:11:20,403 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 35 [2021-04-29 08:11:20,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 08:11:20,419 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2021-04-29 08:11:20,419 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 08:11:20,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20 conditions, 7 events. 0/7 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/8 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-29 08:11:20,420 INFO L132 encePairwiseOnDemand]: 31/35 looper letters, 0 selfloop transitions, 0 changer transitions 7/7 dead transitions. [2021-04-29 08:11:20,420 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 7 transitions, 32 flow [2021-04-29 08:11:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 08:11:20,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 08:11:20,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 44 transitions. [2021-04-29 08:11:20,424 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3142857142857143 [2021-04-29 08:11:20,426 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 44 transitions. [2021-04-29 08:11:20,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 44 transitions. [2021-04-29 08:11:20,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 08:11:20,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 44 transitions. [2021-04-29 08:11:20,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2021-04-29 08:11:20,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 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) [2021-04-29 08:11:20,429 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 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) [2021-04-29 08:11:20,429 INFO L185 Difference]: Start difference. First operand has 14 places, 8 transitions, 30 flow. Second operand 4 states and 44 transitions. [2021-04-29 08:11:20,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 7 transitions, 32 flow [2021-04-29 08:11:20,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 7 transitions, 28 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 08:11:20,433 INFO L241 Difference]: Finished difference. Result has 14 places, 0 transitions, 0 flow [2021-04-29 08:11:20,434 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=14, PETRI_TRANSITIONS=0} [2021-04-29 08:11:20,434 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, -11 predicate places. [2021-04-29 08:11:20,434 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 08:11:20,435 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 14 places, 0 transitions, 0 flow [2021-04-29 08:11:20,435 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 14 places, 0 transitions, 0 flow [2021-04-29 08:11:20,435 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 08:11:20,436 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 08:11:20,436 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 08:11:20,436 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 08:11:20,436 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 08:11:20,436 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 08:11:20,436 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 08:11:20,437 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3 [2021-04-29 08:11:20,440 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 08:11:20,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2021-04-29 08:11:20,441 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 08:11:20,446 INFO L202 PluginConnector]: Adding new model easy7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 08:11:20 BasicIcfg [2021-04-29 08:11:20,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 08:11:20,450 INFO L168 Benchmark]: Toolchain (without parser) took 1575.42 ms. Allocated memory is still 302.0 MB. Free memory was 271.1 MB in the beginning and 253.3 MB in the end (delta: 17.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.0 GB. [2021-04-29 08:11:20,454 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.71 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 08:11:20,460 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.08 ms. Allocated memory is still 302.0 MB. Free memory was 285.3 MB in the beginning and 283.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 08:11:20,460 INFO L168 Benchmark]: Boogie Preprocessor took 17.13 ms. Allocated memory is still 302.0 MB. Free memory was 283.9 MB in the beginning and 283.0 MB in the end (delta: 902.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 08:11:20,463 INFO L168 Benchmark]: RCFGBuilder took 268.11 ms. Allocated memory is still 302.0 MB. Free memory was 282.9 MB in the beginning and 280.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. [2021-04-29 08:11:20,464 INFO L168 Benchmark]: TraceAbstraction took 1187.77 ms. Allocated memory is still 302.0 MB. Free memory was 279.8 MB in the beginning and 253.3 MB in the end (delta: 26.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.0 GB. [2021-04-29 08:11:20,467 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 0.71 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 33.08 ms. Allocated memory is still 302.0 MB. Free memory was 285.3 MB in the beginning and 283.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 17.13 ms. Allocated memory is still 302.0 MB. Free memory was 283.9 MB in the beginning and 283.0 MB in the end (delta: 902.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 268.11 ms. Allocated memory is still 302.0 MB. Free memory was 282.9 MB in the beginning and 280.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1187.77 ms. Allocated memory is still 302.0 MB. Free memory was 279.8 MB in the beginning and 253.3 MB in the end (delta: 26.6 MB). Peak memory consumption was 25.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 369.3ms, 24 PlacesBefore, 25 PlacesAfterwards, 17 TransitionsBefore, 18 TransitionsAfterwards, 70 CoEnabledTransitionPairs, 4 FixpointIterations, 1 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 14 TotalNumberOfCompositions, 79 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 79, positive: 79, positive conditional: 79, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 50, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 50, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 50, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 79, positive: 29, positive conditional: 29, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 50, unknown conditional: 50, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 50, Positive conditional cache size: 50, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.5ms, 25 PlacesBefore, 14 PlacesAfterwards, 8 TransitionsBefore, 8 TransitionsAfterwards, 4 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 50, Positive conditional cache size: 50, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3ms, 14 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 50, Positive conditional cache size: 50, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 39]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 8.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1087.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 215.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 463.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 9 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 61 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 60.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.4ms SsaConstructionTime, 29.2ms SatisfiabilityAnalysisTime, 163.3ms InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 66 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...