/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/spaghetti.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 04:25:04,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 04:25:04,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 04:25:04,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 04:25:04,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 04:25:04,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 04:25:04,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 04:25:04,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 04:25:04,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 04:25:04,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 04:25:04,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 04:25:04,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 04:25:04,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 04:25:04,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 04:25:04,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 04:25:04,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 04:25:04,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 04:25:04,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 04:25:04,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 04:25:04,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 04:25:04,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 04:25:04,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 04:25:04,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 04:25:04,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 04:25:04,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 04:25:04,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-29 04:25:04,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-29 04:25:04,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-29 04:25:04,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-29 04:25:04,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-29 04:25:04,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-29 04:25:04,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-29 04:25:04,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-29 04:25:04,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 04:25:04,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 04:25:04,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 04:25:04,392 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 04:25:04,445 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 04:25:04,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 04:25:04,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 04:25:04,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 04:25:04,451 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 04:25:04,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 04:25:04,451 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 04:25:04,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 04:25:04,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 04:25:04,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 04:25:04,454 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 04:25:04,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 04:25:04,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 04:25:04,455 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 04:25:04,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 04:25:04,455 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 04:25:04,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 04:25:04,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 04:25:04,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 04:25:04,456 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 04:25:04,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 04:25:04,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 04:25:04,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 04:25:04,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 04:25:04,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 04:25:04,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 04:25:04,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 04:25:04,459 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 04:25:04,459 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 04:25:04,459 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 04:25:04,460 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 04:25:04,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 04:25:04,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 04:25:04,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 04:25:04,937 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-04-29 04:25:04,938 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-04-29 04:25:04,939 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/spaghetti.wvr.bpl [2021-04-29 04:25:04,940 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/spaghetti.wvr.bpl' [2021-04-29 04:25:04,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 04:25:05,036 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-29 04:25:05,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 04:25:05,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 04:25:05,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 04:25:05,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:25:04" (1/1) ... [2021-04-29 04:25:05,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:25:04" (1/1) ... [2021-04-29 04:25:05,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 04:25:05,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 04:25:05,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 04:25:05,080 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 04:25:05,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:25:04" (1/1) ... [2021-04-29 04:25:05,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:25:04" (1/1) ... [2021-04-29 04:25:05,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:25:04" (1/1) ... [2021-04-29 04:25:05,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:25:04" (1/1) ... [2021-04-29 04:25:05,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:25:04" (1/1) ... [2021-04-29 04:25:05,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:25:04" (1/1) ... [2021-04-29 04:25:05,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:25:04" (1/1) ... [2021-04-29 04:25:05,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 04:25:05,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 04:25:05,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 04:25:05,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 04:25:05,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:25:04" (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 04:25:05,195 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-04-29 04:25:05,195 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-04-29 04:25:05,195 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-04-29 04:25:05,195 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-04-29 04:25:05,196 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-04-29 04:25:05,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-04-29 04:25:05,196 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-04-29 04:25:05,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 04:25:05,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 04:25:05,197 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-04-29 04:25:05,197 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-04-29 04:25:05,197 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-04-29 04:25:05,197 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-04-29 04:25:05,197 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-04-29 04:25:05,197 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-04-29 04:25:05,199 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 04:25:05,388 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 04:25:05,389 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-04-29 04:25:05,391 INFO L202 PluginConnector]: Adding new model spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 04:25:05 BoogieIcfgContainer [2021-04-29 04:25:05,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 04:25:05,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 04:25:05,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 04:25:05,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 04:25:05,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:25:04" (1/2) ... [2021-04-29 04:25:05,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1df25e0b and model type spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 04:25:05, skipping insertion in model container [2021-04-29 04:25:05,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 04:25:05" (2/2) ... [2021-04-29 04:25:05,400 INFO L111 eAbstractionObserver]: Analyzing ICFG spaghetti.wvr.bpl [2021-04-29 04:25:05,406 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 04:25:05,411 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 04:25:05,412 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 04:25:05,476 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-04-29 04:25:05,508 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-04-29 04:25:05,538 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 04:25:05,538 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 04:25:05,538 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 04:25:05,539 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 04:25:05,539 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 04:25:05,539 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 04:25:05,539 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 04:25:05,539 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 04:25:05,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 34 transitions, 100 flow [2021-04-29 04:25:05,588 INFO L129 PetriNetUnfolder]: 4/30 cut-off events. [2021-04-29 04:25:05,589 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-29 04:25:05,594 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 30 events. 4/30 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 60 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2021-04-29 04:25:05,594 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 34 transitions, 100 flow [2021-04-29 04:25:05,600 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 28 transitions, 80 flow [2021-04-29 04:25:05,602 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 04:25:05,621 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 28 transitions, 80 flow [2021-04-29 04:25:05,625 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 28 transitions, 80 flow [2021-04-29 04:25:05,628 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 28 transitions, 80 flow [2021-04-29 04:25:05,646 INFO L129 PetriNetUnfolder]: 4/28 cut-off events. [2021-04-29 04:25:05,646 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-29 04:25:05,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 28 events. 4/28 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 60 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2021-04-29 04:25:05,652 INFO L146 LiptonReduction]: Number of co-enabled transitions 350 [2021-04-29 04:25:06,130 INFO L158 LiptonReduction]: Checked pairs total: 300 [2021-04-29 04:25:06,131 INFO L160 LiptonReduction]: Total number of compositions: 11 [2021-04-29 04:25:06,134 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 534 [2021-04-29 04:25:06,154 INFO L129 PetriNetUnfolder]: 4/26 cut-off events. [2021-04-29 04:25:06,155 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-29 04:25:06,155 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 04:25:06,156 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 04:25:06,156 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 04:25:06,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 04:25:06,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1083950689, now seen corresponding path program 1 times [2021-04-29 04:25:06,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 04:25:06,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045364788] [2021-04-29 04:25:06,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 04:25:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 04:25:06,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:25:06,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 04:25:06,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:25:06,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 04:25:06,349 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-04-29 04:25:06,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 04:25:06,359 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 04:25:06,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045364788] [2021-04-29 04:25:06,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 04:25:06,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 04:25:06,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324594222] [2021-04-29 04:25:06,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 04:25:06,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 04:25:06,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 04:25:06,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 04:25:06,392 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 45 [2021-04-29 04:25:06,394 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 80 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 04:25:06,394 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 04:25:06,394 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 45 [2021-04-29 04:25:06,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 04:25:06,608 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([87] L47-->thread4FINAL: Formula: (= v_x_1_12 0) InVars {} OutVars{x_1=v_x_1_12} AuxVars[] AssignedVars[x_1][32], [51#true, 54#true, thread4Thread1of1ForFork2InUse, 10#L60true, 58#true, thread2Thread1of1ForFork0InUse, 28#L26true, thread3Thread1of1ForFork1InUse, 29#L36true, thread1Thread1of1ForFork3InUse]) [2021-04-29 04:25:06,609 INFO L384 tUnfolder$Statistics]: this new event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,609 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,609 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,610 INFO L387 tUnfolder$Statistics]: existing Event has 6 ancestors and is cut-off event [2021-04-29 04:25:06,610 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([102] L47-->thread4EXIT: Formula: (= v_x_1_18 0) InVars {} OutVars{x_1=v_x_1_18} AuxVars[] AssignedVars[x_1][33], [54#true, thread4Thread1of1ForFork2InUse, 10#L60true, thread2Thread1of1ForFork0InUse, 58#true, 28#L26true, thread3Thread1of1ForFork1InUse, 29#L36true, thread1Thread1of1ForFork3InUse, 31#thread4EXITtrue]) [2021-04-29 04:25:06,610 INFO L384 tUnfolder$Statistics]: this new event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,610 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,610 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,611 INFO L387 tUnfolder$Statistics]: existing Event has 6 ancestors and is cut-off event [2021-04-29 04:25:06,611 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([86] L47-->L49: Formula: (= v_x_1_8 (* v_x_1_9 10)) InVars {x_1=v_x_1_9} OutVars{x_1=v_x_1_8} AuxVars[] AssignedVars[x_1][34], [54#true, thread4Thread1of1ForFork2InUse, 57#true, 10#L60true, thread2Thread1of1ForFork0InUse, 58#true, 28#L26true, thread3Thread1of1ForFork1InUse, 29#L36true, thread1Thread1of1ForFork3InUse]) [2021-04-29 04:25:06,611 INFO L384 tUnfolder$Statistics]: this new event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,611 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,611 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,611 INFO L387 tUnfolder$Statistics]: existing Event has 6 ancestors and is cut-off event [2021-04-29 04:25:06,612 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([109] L47-->L47: Formula: (= (* 20 v_x_1_96) v_x_1_94) InVars {x_1=v_x_1_96} OutVars{x_1=v_x_1_94} AuxVars[] AssignedVars[x_1][35], [6#L47true, 54#true, thread4Thread1of1ForFork2InUse, 10#L60true, thread2Thread1of1ForFork0InUse, 58#true, 28#L26true, thread3Thread1of1ForFork1InUse, 29#L36true, thread1Thread1of1ForFork3InUse]) [2021-04-29 04:25:06,612 INFO L384 tUnfolder$Statistics]: this new event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,612 INFO L387 tUnfolder$Statistics]: existing Event has 6 ancestors and is cut-off event [2021-04-29 04:25:06,612 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,613 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,632 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([87] L47-->thread4FINAL: Formula: (= v_x_1_12 0) InVars {} OutVars{x_1=v_x_1_12} AuxVars[] AssignedVars[x_1][36], [48#true, 51#true, thread4Thread1of1ForFork2InUse, 10#L60true, thread2Thread1of1ForFork0InUse, 28#L26true, thread3Thread1of1ForFork1InUse, 29#L36true, thread1Thread1of1ForFork3InUse, 63#(and (<= x_0 x_1) (<= x_0 0) (<= 0 x_0) (< x_1 (+ x_0 1)))]) [2021-04-29 04:25:06,632 INFO L384 tUnfolder$Statistics]: this new event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,632 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,633 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,633 INFO L387 tUnfolder$Statistics]: existing Event has 6 ancestors and is cut-off event [2021-04-29 04:25:06,633 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([102] L47-->thread4EXIT: Formula: (= v_x_1_18 0) InVars {} OutVars{x_1=v_x_1_18} AuxVars[] AssignedVars[x_1][37], [48#true, thread4Thread1of1ForFork2InUse, 10#L60true, thread2Thread1of1ForFork0InUse, 28#L26true, thread3Thread1of1ForFork1InUse, 29#L36true, thread1Thread1of1ForFork3InUse, 31#thread4EXITtrue, 63#(and (<= x_0 x_1) (<= x_0 0) (<= 0 x_0) (< x_1 (+ x_0 1)))]) [2021-04-29 04:25:06,633 INFO L384 tUnfolder$Statistics]: this new event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,633 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,633 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,634 INFO L387 tUnfolder$Statistics]: existing Event has 6 ancestors and is cut-off event [2021-04-29 04:25:06,634 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([86] L47-->L49: Formula: (= v_x_1_8 (* v_x_1_9 10)) InVars {x_1=v_x_1_9} OutVars{x_1=v_x_1_8} AuxVars[] AssignedVars[x_1][38], [48#true, thread4Thread1of1ForFork2InUse, 57#true, 10#L60true, thread2Thread1of1ForFork0InUse, 60#(and (<= x_0 0) (<= 0 x_0)), 28#L26true, thread3Thread1of1ForFork1InUse, 29#L36true, thread1Thread1of1ForFork3InUse]) [2021-04-29 04:25:06,634 INFO L384 tUnfolder$Statistics]: this new event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,634 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,634 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,635 INFO L387 tUnfolder$Statistics]: existing Event has 6 ancestors and is cut-off event [2021-04-29 04:25:06,635 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([109] L47-->L47: Formula: (= (* 20 v_x_1_96) v_x_1_94) InVars {x_1=v_x_1_96} OutVars{x_1=v_x_1_94} AuxVars[] AssignedVars[x_1][39], [48#true, 6#L47true, thread4Thread1of1ForFork2InUse, 10#L60true, thread2Thread1of1ForFork0InUse, 60#(and (<= x_0 0) (<= 0 x_0)), 28#L26true, thread3Thread1of1ForFork1InUse, 29#L36true, thread1Thread1of1ForFork3InUse]) [2021-04-29 04:25:06,635 INFO L384 tUnfolder$Statistics]: this new event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,635 INFO L387 tUnfolder$Statistics]: existing Event has 6 ancestors and is cut-off event [2021-04-29 04:25:06,635 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,636 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,647 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([87] L47-->thread4FINAL: Formula: (= v_x_1_12 0) InVars {} OutVars{x_1=v_x_1_12} AuxVars[] AssignedVars[x_1][32], [51#true, 53#true, thread4Thread1of1ForFork2InUse, 10#L60true, 58#true, thread2Thread1of1ForFork0InUse, 28#L26true, thread3Thread1of1ForFork1InUse, 29#L36true, thread1Thread1of1ForFork3InUse]) [2021-04-29 04:25:06,648 INFO L384 tUnfolder$Statistics]: this new event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,648 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,648 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,648 INFO L387 tUnfolder$Statistics]: existing Event has 6 ancestors and is cut-off event [2021-04-29 04:25:06,649 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([102] L47-->thread4EXIT: Formula: (= v_x_1_18 0) InVars {} OutVars{x_1=v_x_1_18} AuxVars[] AssignedVars[x_1][33], [53#true, thread4Thread1of1ForFork2InUse, 10#L60true, thread2Thread1of1ForFork0InUse, 58#true, 28#L26true, thread3Thread1of1ForFork1InUse, 29#L36true, thread1Thread1of1ForFork3InUse, 31#thread4EXITtrue]) [2021-04-29 04:25:06,649 INFO L384 tUnfolder$Statistics]: this new event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,649 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,649 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,649 INFO L387 tUnfolder$Statistics]: existing Event has 6 ancestors and is cut-off event [2021-04-29 04:25:06,650 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([86] L47-->L49: Formula: (= v_x_1_8 (* v_x_1_9 10)) InVars {x_1=v_x_1_9} OutVars{x_1=v_x_1_8} AuxVars[] AssignedVars[x_1][34], [53#true, thread4Thread1of1ForFork2InUse, 57#true, 10#L60true, thread2Thread1of1ForFork0InUse, 58#true, 28#L26true, thread3Thread1of1ForFork1InUse, 29#L36true, thread1Thread1of1ForFork3InUse]) [2021-04-29 04:25:06,650 INFO L384 tUnfolder$Statistics]: this new event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,650 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,650 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,650 INFO L387 tUnfolder$Statistics]: existing Event has 6 ancestors and is cut-off event [2021-04-29 04:25:06,651 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([109] L47-->L47: Formula: (= (* 20 v_x_1_96) v_x_1_94) InVars {x_1=v_x_1_96} OutVars{x_1=v_x_1_94} AuxVars[] AssignedVars[x_1][35], [53#true, 6#L47true, thread4Thread1of1ForFork2InUse, 10#L60true, thread2Thread1of1ForFork0InUse, 58#true, 28#L26true, thread3Thread1of1ForFork1InUse, 29#L36true, thread1Thread1of1ForFork3InUse]) [2021-04-29 04:25:06,651 INFO L384 tUnfolder$Statistics]: this new event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,651 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,651 INFO L387 tUnfolder$Statistics]: existing Event has 6 ancestors and is cut-off event [2021-04-29 04:25:06,651 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,666 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([87] L47-->thread4FINAL: Formula: (= v_x_1_12 0) InVars {} OutVars{x_1=v_x_1_12} AuxVars[] AssignedVars[x_1][36], [19#thread1EXITtrue, 51#true, thread4Thread1of1ForFork2InUse, 10#L60true, thread2Thread1of1ForFork0InUse, 28#L26true, thread3Thread1of1ForFork1InUse, 29#L36true, thread1Thread1of1ForFork3InUse, 63#(and (<= x_0 x_1) (<= x_0 0) (<= 0 x_0) (< x_1 (+ x_0 1)))]) [2021-04-29 04:25:06,667 INFO L384 tUnfolder$Statistics]: this new event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,667 INFO L387 tUnfolder$Statistics]: existing Event has 6 ancestors and is cut-off event [2021-04-29 04:25:06,667 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,667 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,668 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([102] L47-->thread4EXIT: Formula: (= v_x_1_18 0) InVars {} OutVars{x_1=v_x_1_18} AuxVars[] AssignedVars[x_1][37], [19#thread1EXITtrue, thread4Thread1of1ForFork2InUse, 10#L60true, thread2Thread1of1ForFork0InUse, 28#L26true, thread3Thread1of1ForFork1InUse, 29#L36true, thread1Thread1of1ForFork3InUse, 31#thread4EXITtrue, 63#(and (<= x_0 x_1) (<= x_0 0) (<= 0 x_0) (< x_1 (+ x_0 1)))]) [2021-04-29 04:25:06,668 INFO L384 tUnfolder$Statistics]: this new event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,668 INFO L387 tUnfolder$Statistics]: existing Event has 6 ancestors and is cut-off event [2021-04-29 04:25:06,668 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,668 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,669 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([86] L47-->L49: Formula: (= v_x_1_8 (* v_x_1_9 10)) InVars {x_1=v_x_1_9} OutVars{x_1=v_x_1_8} AuxVars[] AssignedVars[x_1][38], [19#thread1EXITtrue, thread4Thread1of1ForFork2InUse, 57#true, 10#L60true, thread2Thread1of1ForFork0InUse, 60#(and (<= x_0 0) (<= 0 x_0)), 28#L26true, thread3Thread1of1ForFork1InUse, 29#L36true, thread1Thread1of1ForFork3InUse]) [2021-04-29 04:25:06,669 INFO L384 tUnfolder$Statistics]: this new event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,669 INFO L387 tUnfolder$Statistics]: existing Event has 6 ancestors and is cut-off event [2021-04-29 04:25:06,669 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,670 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,670 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([109] L47-->L47: Formula: (= (* 20 v_x_1_96) v_x_1_94) InVars {x_1=v_x_1_96} OutVars{x_1=v_x_1_94} AuxVars[] AssignedVars[x_1][39], [19#thread1EXITtrue, 6#L47true, thread4Thread1of1ForFork2InUse, 10#L60true, thread2Thread1of1ForFork0InUse, 60#(and (<= x_0 0) (<= 0 x_0)), 28#L26true, thread3Thread1of1ForFork1InUse, 29#L36true, thread1Thread1of1ForFork3InUse]) [2021-04-29 04:25:06,670 INFO L384 tUnfolder$Statistics]: this new event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,670 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,670 INFO L387 tUnfolder$Statistics]: existing Event has 6 ancestors and is cut-off event [2021-04-29 04:25:06,671 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:06,941 INFO L129 PetriNetUnfolder]: 3003/3978 cut-off events. [2021-04-29 04:25:06,941 INFO L130 PetriNetUnfolder]: For 80/80 co-relation queries the response was YES. [2021-04-29 04:25:06,955 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7966 conditions, 3978 events. 3003/3978 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 599. Compared 19702 event pairs, 505 based on Foata normal form. 1/927 useless extension candidates. Maximal degree in co-relation 7940. Up to 1603 conditions per place. [2021-04-29 04:25:06,963 INFO L132 encePairwiseOnDemand]: 29/45 looper letters, 15 selfloop transitions, 7 changer transitions 34/64 dead transitions. [2021-04-29 04:25:06,963 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 64 transitions, 264 flow [2021-04-29 04:25:06,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 04:25:06,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 04:25:06,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2021-04-29 04:25:06,984 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2021-04-29 04:25:06,986 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 130 transitions. [2021-04-29 04:25:06,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 130 transitions. [2021-04-29 04:25:06,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 04:25:06,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 130 transitions. [2021-04-29 04:25:06,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 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 04:25:07,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 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 04:25:07,007 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 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 04:25:07,009 INFO L185 Difference]: Start difference. First operand has 37 places, 28 transitions, 80 flow. Second operand 4 states and 130 transitions. [2021-04-29 04:25:07,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 64 transitions, 264 flow [2021-04-29 04:25:07,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 64 transitions, 248 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-04-29 04:25:07,032 INFO L241 Difference]: Finished difference. Result has 35 places, 24 transitions, 98 flow [2021-04-29 04:25:07,034 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=98, PETRI_PLACES=35, PETRI_TRANSITIONS=24} [2021-04-29 04:25:07,035 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places. [2021-04-29 04:25:07,036 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 04:25:07,036 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 24 transitions, 98 flow [2021-04-29 04:25:07,036 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 24 transitions, 98 flow [2021-04-29 04:25:07,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 24 transitions, 98 flow [2021-04-29 04:25:07,046 INFO L129 PetriNetUnfolder]: 31/79 cut-off events. [2021-04-29 04:25:07,046 INFO L130 PetriNetUnfolder]: For 19/22 co-relation queries the response was YES. [2021-04-29 04:25:07,047 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 79 events. 31/79 cut-off events. For 19/22 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 273 event pairs, 4 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 139. Up to 23 conditions per place. [2021-04-29 04:25:07,049 INFO L146 LiptonReduction]: Number of co-enabled transitions 158 [2021-04-29 04:25:07,051 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 04:25:07,052 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 04:25:07,052 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-04-29 04:25:07,054 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 24 transitions, 98 flow [2021-04-29 04:25:07,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 04:25:07,055 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 04:25:07,055 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 04:25:07,055 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 04:25:07,055 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 04:25:07,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 04:25:07,056 INFO L82 PathProgramCache]: Analyzing trace with hash 282753187, now seen corresponding path program 2 times [2021-04-29 04:25:07,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 04:25:07,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797787002] [2021-04-29 04:25:07,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 04:25:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 04:25:07,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:25:07,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 04:25:07,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:25:07,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 04:25:07,103 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-04-29 04:25:07,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 04:25:07,112 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 04:25:07,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797787002] [2021-04-29 04:25:07,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 04:25:07,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 04:25:07,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872695249] [2021-04-29 04:25:07,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 04:25:07,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 04:25:07,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 04:25:07,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 04:25:07,117 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 45 [2021-04-29 04:25:07,118 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 24 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 04:25:07,118 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 04:25:07,118 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 45 [2021-04-29 04:25:07,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 04:25:07,171 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([102] L47-->thread4EXIT: Formula: (= v_x_1_18 0) InVars {} OutVars{x_1=v_x_1_18} AuxVars[] AssignedVars[x_1][18], [Black: 58#true, 19#thread1EXITtrue, Black: 60#(and (<= x_0 0) (<= 0 x_0)), 71#(and (<= 0 x_1) (<= x_1 0)), 10#L60true, 28#L26true, 29#L36true, 63#(and (<= x_0 x_1) (<= x_0 0) (<= 0 x_0) (< x_1 (+ x_0 1))), 31#thread4EXITtrue]) [2021-04-29 04:25:07,171 INFO L384 tUnfolder$Statistics]: this new event has 7 ancestors and is cut-off event [2021-04-29 04:25:07,171 INFO L387 tUnfolder$Statistics]: existing Event has 6 ancestors and is cut-off event [2021-04-29 04:25:07,172 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:07,172 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:07,172 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([109] L47-->L47: Formula: (= (* 20 v_x_1_96) v_x_1_94) InVars {x_1=v_x_1_96} OutVars{x_1=v_x_1_94} AuxVars[] AssignedVars[x_1][19], [Black: 58#true, 19#thread1EXITtrue, Black: 63#(and (<= x_0 x_1) (<= x_0 0) (<= 0 x_0) (< x_1 (+ x_0 1))), 69#true, 6#L47true, 10#L60true, 60#(and (<= x_0 0) (<= 0 x_0)), 28#L26true, 29#L36true]) [2021-04-29 04:25:07,172 INFO L384 tUnfolder$Statistics]: this new event has 7 ancestors and is cut-off event [2021-04-29 04:25:07,173 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:07,173 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-04-29 04:25:07,173 INFO L387 tUnfolder$Statistics]: existing Event has 6 ancestors and is cut-off event [2021-04-29 04:25:07,193 INFO L129 PetriNetUnfolder]: 162/242 cut-off events. [2021-04-29 04:25:07,194 INFO L130 PetriNetUnfolder]: For 160/182 co-relation queries the response was YES. [2021-04-29 04:25:07,195 INFO L84 FinitePrefix]: Finished finitePrefix Result has 696 conditions, 242 events. 162/242 cut-off events. For 160/182 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 721 event pairs, 5 based on Foata normal form. 2/234 useless extension candidates. Maximal degree in co-relation 659. Up to 83 conditions per place. [2021-04-29 04:25:07,196 INFO L132 encePairwiseOnDemand]: 38/45 looper letters, 0 selfloop transitions, 0 changer transitions 45/45 dead transitions. [2021-04-29 04:25:07,196 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 45 transitions, 262 flow [2021-04-29 04:25:07,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 04:25:07,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 04:25:07,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2021-04-29 04:25:07,198 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5388888888888889 [2021-04-29 04:25:07,198 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 97 transitions. [2021-04-29 04:25:07,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 97 transitions. [2021-04-29 04:25:07,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 04:25:07,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 97 transitions. [2021-04-29 04:25:07,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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 04:25:07,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 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 04:25:07,201 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 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 04:25:07,202 INFO L185 Difference]: Start difference. First operand has 24 places, 24 transitions, 98 flow. Second operand 4 states and 97 transitions. [2021-04-29 04:25:07,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 45 transitions, 262 flow [2021-04-29 04:25:07,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 45 transitions, 262 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 04:25:07,204 INFO L241 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2021-04-29 04:25:07,205 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2021-04-29 04:25:07,205 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, -11 predicate places. [2021-04-29 04:25:07,206 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 04:25:07,206 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 0 transitions, 0 flow [2021-04-29 04:25:07,206 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 0 transitions, 0 flow [2021-04-29 04:25:07,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 04:25:07,207 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 04:25:07,207 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 04:25:07,207 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 04:25:07,208 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 04:25:07,208 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 04:25:07,208 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 04:25:07,208 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 04:25:07,210 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 04:25:07,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 04:25:07,210 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 04:25:07,215 INFO L202 PluginConnector]: Adding new model spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 04:25:07 BasicIcfg [2021-04-29 04:25:07,215 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 04:25:07,217 INFO L168 Benchmark]: Toolchain (without parser) took 2235.78 ms. Allocated memory was 306.2 MB in the beginning and 369.1 MB in the end (delta: 62.9 MB). Free memory was 275.4 MB in the beginning and 291.2 MB in the end (delta: -15.8 MB). Peak memory consumption was 47.6 MB. Max. memory is 16.0 GB. [2021-04-29 04:25:07,218 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.78 ms. Allocated memory is still 306.2 MB. Free memory was 276.5 MB in the beginning and 276.5 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 04:25:07,219 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.12 ms. Allocated memory is still 306.2 MB. Free memory was 289.7 MB in the beginning and 288.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 04:25:07,219 INFO L168 Benchmark]: Boogie Preprocessor took 24.49 ms. Allocated memory is still 306.2 MB. Free memory was 288.2 MB in the beginning and 287.3 MB in the end (delta: 977.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 04:25:07,220 INFO L168 Benchmark]: RCFGBuilder took 285.38 ms. Allocated memory is still 306.2 MB. Free memory was 287.1 MB in the beginning and 283.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-04-29 04:25:07,221 INFO L168 Benchmark]: TraceAbstraction took 1822.81 ms. Allocated memory was 306.2 MB in the beginning and 369.1 MB in the end (delta: 62.9 MB). Free memory was 282.8 MB in the beginning and 291.2 MB in the end (delta: -8.4 MB). Peak memory consumption was 57.5 MB. Max. memory is 16.0 GB. [2021-04-29 04:25:07,225 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 0.78 ms. Allocated memory is still 306.2 MB. Free memory was 276.5 MB in the beginning and 276.5 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 40.12 ms. Allocated memory is still 306.2 MB. Free memory was 289.7 MB in the beginning and 288.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 24.49 ms. Allocated memory is still 306.2 MB. Free memory was 288.2 MB in the beginning and 287.3 MB in the end (delta: 977.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 285.38 ms. Allocated memory is still 306.2 MB. Free memory was 287.1 MB in the beginning and 283.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1822.81 ms. Allocated memory was 306.2 MB in the beginning and 369.1 MB in the end (delta: 62.9 MB). Free memory was 282.8 MB in the beginning and 291.2 MB in the end (delta: -8.4 MB). Peak memory consumption was 57.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 505.6ms, 37 PlacesBefore, 37 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 350 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 11 TotalNumberOfCompositions, 300 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 217, positive: 209, positive conditional: 209, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 185, positive: 177, positive conditional: 0, positive unconditional: 177, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 185, positive: 177, positive conditional: 0, positive unconditional: 177, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 185, positive: 152, positive conditional: 0, positive unconditional: 152, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 33, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 221, positive: 132, positive conditional: 0, positive unconditional: 132, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 217, positive: 32, positive conditional: 32, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 185, unknown conditional: 185, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 185, Positive cache size: 177, Positive conditional cache size: 177, Positive unconditional cache size: 0, Negative cache size: 8, Negative conditional cache size: 8, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.3ms, 35 PlacesBefore, 24 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 158 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): 185, Positive cache size: 177, Positive conditional cache size: 177, Positive unconditional cache size: 0, Negative cache size: 8, Negative conditional cache size: 8, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6ms, 26 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): 185, Positive cache size: 177, Positive conditional cache size: 177, Positive unconditional cache size: 0, Negative cache size: 8, Negative conditional cache size: 8, Negative unconditional cache size: 0 - PositiveResult [Line: 66]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 9.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 1678.9ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 739.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 606.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 69 SDtfs, 13 SDslu, 13 SDs, 0 SdLazy, 82 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 111.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=1, 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: 6.6ms SsaConstructionTime, 27.5ms SatisfiabilityAnalysisTime, 133.1ms InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 122 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...