/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/parallel/ticket-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 05:51:56,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 05:51:56,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 05:51:56,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 05:51:56,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 05:51:56,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 05:51:56,525 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 05:51:56,528 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 05:51:56,530 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 05:51:56,531 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 05:51:56,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 05:51:56,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 05:51:56,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 05:51:56,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 05:51:56,538 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 05:51:56,539 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 05:51:56,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 05:51:56,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 05:51:56,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 05:51:56,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 05:51:56,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 05:51:56,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 05:51:56,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 05:51:56,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 05:51:56,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-29 05:51:56,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-29 05:51:56,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-29 05:51:56,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-29 05:51:56,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-29 05:51:56,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-29 05:51:56,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-29 05:51:56,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-29 05:51:56,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-29 05:51:56,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-29 05:51:56,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-29 05:51:56,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-29 05:51:56,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-29 05:51:56,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-29 05:51:56,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 05:51:56,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 05:51:56,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 05:51:56,570 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 05:51:56,620 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 05:51:56,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 05:51:56,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 05:51:56,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 05:51:56,626 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 05:51:56,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 05:51:56,628 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 05:51:56,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 05:51:56,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 05:51:56,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 05:51:56,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 05:51:56,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 05:51:56,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 05:51:56,631 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 05:51:56,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 05:51:56,631 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 05:51:56,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 05:51:56,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 05:51:56,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 05:51:56,633 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 05:51:56,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 05:51:56,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 05:51:56,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 05:51:56,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 05:51:56,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 05:51:56,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 05:51:56,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 05:51:56,635 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 05:51:56,635 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 05:51:56,635 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 05:51:56,636 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 05:51:57,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 05:51:57,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 05:51:57,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 05:51:57,103 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-04-29 05:51:57,109 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-04-29 05:51:57,110 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-3.wvr.bpl [2021-04-29 05:51:57,110 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-3.wvr.bpl' [2021-04-29 05:51:57,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 05:51:57,204 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-29 05:51:57,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 05:51:57,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 05:51:57,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 05:51:57,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:51:57" (1/1) ... [2021-04-29 05:51:57,232 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:51:57" (1/1) ... [2021-04-29 05:51:57,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 05:51:57,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 05:51:57,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 05:51:57,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 05:51:57,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:51:57" (1/1) ... [2021-04-29 05:51:57,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:51:57" (1/1) ... [2021-04-29 05:51:57,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:51:57" (1/1) ... [2021-04-29 05:51:57,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:51:57" (1/1) ... [2021-04-29 05:51:57,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:51:57" (1/1) ... [2021-04-29 05:51:57,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:51:57" (1/1) ... [2021-04-29 05:51:57,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:51:57" (1/1) ... [2021-04-29 05:51:57,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 05:51:57,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 05:51:57,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 05:51:57,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 05:51:57,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:51:57" (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 05:51:57,375 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-04-29 05:51:57,375 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-04-29 05:51:57,376 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-04-29 05:51:57,376 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-04-29 05:51:57,376 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-04-29 05:51:57,376 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-04-29 05:51:57,376 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-04-29 05:51:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 05:51:57,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 05:51:57,377 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-04-29 05:51:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-04-29 05:51:57,377 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-04-29 05:51:57,379 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 05:51:57,752 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 05:51:57,754 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-04-29 05:51:57,761 INFO L202 PluginConnector]: Adding new model ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 05:51:57 BoogieIcfgContainer [2021-04-29 05:51:57,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 05:51:57,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 05:51:57,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 05:51:57,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 05:51:57,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:51:57" (1/2) ... [2021-04-29 05:51:57,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3582a685 and model type ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 05:51:57, skipping insertion in model container [2021-04-29 05:51:57,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 05:51:57" (2/2) ... [2021-04-29 05:51:57,784 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-3.wvr.bpl [2021-04-29 05:51:57,792 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 05:51:57,797 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 05:51:57,799 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 05:51:57,879 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-04-29 05:51:57,908 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 05:51:57,941 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 05:51:57,942 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 05:51:57,942 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 05:51:57,942 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 05:51:57,942 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 05:51:57,942 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 05:51:57,942 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 05:51:57,943 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 05:51:57,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 30 transitions, 84 flow [2021-04-29 05:51:57,991 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-04-29 05:51:57,991 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-29 05:51:57,994 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 27 events. 0/27 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 05:51:57,994 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 30 transitions, 84 flow [2021-04-29 05:51:58,000 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 25 transitions, 68 flow [2021-04-29 05:51:58,002 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:51:58,036 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 25 transitions, 68 flow [2021-04-29 05:51:58,043 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 25 transitions, 68 flow [2021-04-29 05:51:58,044 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 25 transitions, 68 flow [2021-04-29 05:51:58,068 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-04-29 05:51:58,069 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-29 05:51:58,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 25 events. 0/25 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 05:51:58,072 INFO L146 LiptonReduction]: Number of co-enabled transitions 234 [2021-04-29 05:51:59,298 INFO L158 LiptonReduction]: Checked pairs total: 1156 [2021-04-29 05:51:59,298 INFO L160 LiptonReduction]: Total number of compositions: 14 [2021-04-29 05:51:59,301 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1301 [2021-04-29 05:51:59,319 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-04-29 05:51:59,319 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-29 05:51:59,319 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:51:59,320 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:51:59,320 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:51:59,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:51:59,327 INFO L82 PathProgramCache]: Analyzing trace with hash -718058244, now seen corresponding path program 1 times [2021-04-29 05:51:59,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:51:59,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718501901] [2021-04-29 05:51:59,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:51:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:51:59,533 INFO L142 QuantifierPusher]: treesize reduction 15, result has 46.4 percent of original size [2021-04-29 05:51:59,538 INFO L147 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size 9 [2021-04-29 05:51:59,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:51:59,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:51:59,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:51:59,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-04-29 05:51:59,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:51:59,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:51:59,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:51:59,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-04-29 05:51:59,587 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 05:51:59,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718501901] [2021-04-29 05:51:59,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:51:59,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 05:51:59,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007938569] [2021-04-29 05:51:59,609 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 05:51:59,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:51:59,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 05:51:59,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-04-29 05:51:59,632 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2021-04-29 05:51:59,635 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 70 flow. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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 05:51:59,636 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:51:59,636 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2021-04-29 05:51:59,638 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:51:59,932 INFO L129 PetriNetUnfolder]: 291/578 cut-off events. [2021-04-29 05:51:59,932 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-04-29 05:51:59,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1148 conditions, 578 events. 291/578 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 3233 event pairs, 148 based on Foata normal form. 1/315 useless extension candidates. Maximal degree in co-relation 1124. Up to 300 conditions per place. [2021-04-29 05:51:59,940 INFO L132 encePairwiseOnDemand]: 28/44 looper letters, 13 selfloop transitions, 7 changer transitions 18/48 dead transitions. [2021-04-29 05:51:59,940 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 48 transitions, 190 flow [2021-04-29 05:51:59,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 05:51:59,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 05:51:59,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 150 transitions. [2021-04-29 05:51:59,954 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6818181818181818 [2021-04-29 05:51:59,955 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 150 transitions. [2021-04-29 05:51:59,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 150 transitions. [2021-04-29 05:51:59,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:51:59,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 150 transitions. [2021-04-29 05:51:59,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 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 05:51:59,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 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 05:51:59,969 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 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 05:51:59,971 INFO L185 Difference]: Start difference. First operand has 36 places, 26 transitions, 70 flow. Second operand 5 states and 150 transitions. [2021-04-29 05:51:59,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 48 transitions, 190 flow [2021-04-29 05:51:59,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 48 transitions, 178 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-04-29 05:51:59,980 INFO L241 Difference]: Finished difference. Result has 37 places, 24 transitions, 93 flow [2021-04-29 05:51:59,982 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=93, PETRI_PLACES=37, PETRI_TRANSITIONS=24} [2021-04-29 05:51:59,983 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2021-04-29 05:51:59,983 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:51:59,983 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 24 transitions, 93 flow [2021-04-29 05:51:59,984 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 24 transitions, 93 flow [2021-04-29 05:51:59,985 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 24 transitions, 93 flow [2021-04-29 05:51:59,992 INFO L129 PetriNetUnfolder]: 11/61 cut-off events. [2021-04-29 05:51:59,992 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-04-29 05:51:59,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 61 events. 11/61 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 228 event pairs, 4 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 107. Up to 22 conditions per place. [2021-04-29 05:51:59,994 INFO L146 LiptonReduction]: Number of co-enabled transitions 122 [2021-04-29 05:51:59,997 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:51:59,997 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:51:59,998 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-04-29 05:52:00,000 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 24 transitions, 93 flow [2021-04-29 05:52:00,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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 05:52:00,001 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:00,001 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:00,001 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 05:52:00,002 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:00,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:00,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1957883680, now seen corresponding path program 2 times [2021-04-29 05:52:00,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:00,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412737172] [2021-04-29 05:52:00,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:00,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:00,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:00,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:00,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:00,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:00,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:00,062 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 05:52:00,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412737172] [2021-04-29 05:52:00,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:00,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:52:00,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793642791] [2021-04-29 05:52:00,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 05:52:00,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:00,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 05:52:00,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-04-29 05:52:00,067 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2021-04-29 05:52:00,068 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 93 flow. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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 05:52:00,068 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:00,068 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2021-04-29 05:52:00,068 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:00,232 INFO L129 PetriNetUnfolder]: 150/330 cut-off events. [2021-04-29 05:52:00,232 INFO L130 PetriNetUnfolder]: For 179/181 co-relation queries the response was YES. [2021-04-29 05:52:00,233 INFO L84 FinitePrefix]: Finished finitePrefix Result has 886 conditions, 330 events. 150/330 cut-off events. For 179/181 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 1722 event pairs, 39 based on Foata normal form. 20/320 useless extension candidates. Maximal degree in co-relation 853. Up to 122 conditions per place. [2021-04-29 05:52:00,235 INFO L132 encePairwiseOnDemand]: 36/44 looper letters, 14 selfloop transitions, 20 changer transitions 15/56 dead transitions. [2021-04-29 05:52:00,235 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 56 transitions, 308 flow [2021-04-29 05:52:00,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 05:52:00,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 05:52:00,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 160 transitions. [2021-04-29 05:52:00,238 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2021-04-29 05:52:00,239 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 160 transitions. [2021-04-29 05:52:00,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 160 transitions. [2021-04-29 05:52:00,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:00,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 160 transitions. [2021-04-29 05:52:00,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 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 05:52:00,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 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 05:52:00,243 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 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 05:52:00,243 INFO L185 Difference]: Start difference. First operand has 30 places, 24 transitions, 93 flow. Second operand 6 states and 160 transitions. [2021-04-29 05:52:00,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 56 transitions, 308 flow [2021-04-29 05:52:00,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 56 transitions, 284 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-04-29 05:52:00,247 INFO L241 Difference]: Finished difference. Result has 33 places, 36 transitions, 210 flow [2021-04-29 05:52:00,247 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=210, PETRI_PLACES=33, PETRI_TRANSITIONS=36} [2021-04-29 05:52:00,248 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, -3 predicate places. [2021-04-29 05:52:00,248 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:00,249 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 36 transitions, 210 flow [2021-04-29 05:52:00,249 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 36 transitions, 210 flow [2021-04-29 05:52:00,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 36 transitions, 210 flow [2021-04-29 05:52:00,262 INFO L129 PetriNetUnfolder]: 32/104 cut-off events. [2021-04-29 05:52:00,262 INFO L130 PetriNetUnfolder]: For 62/68 co-relation queries the response was YES. [2021-04-29 05:52:00,263 INFO L84 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 104 events. 32/104 cut-off events. For 62/68 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 428 event pairs, 6 based on Foata normal form. 3/106 useless extension candidates. Maximal degree in co-relation 277. Up to 46 conditions per place. [2021-04-29 05:52:00,264 INFO L146 LiptonReduction]: Number of co-enabled transitions 56 [2021-04-29 05:52:00,269 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:00,269 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:00,269 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-04-29 05:52:00,271 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 36 transitions, 210 flow [2021-04-29 05:52:00,271 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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 05:52:00,271 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:00,271 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:00,272 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 05:52:00,272 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:00,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:00,272 INFO L82 PathProgramCache]: Analyzing trace with hash -624054570, now seen corresponding path program 3 times [2021-04-29 05:52:00,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:00,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205204443] [2021-04-29 05:52:00,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:00,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:00,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:00,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:00,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:00,321 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 05:52:00,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205204443] [2021-04-29 05:52:00,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:00,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 05:52:00,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419056819] [2021-04-29 05:52:00,323 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 05:52:00,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:00,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 05:52:00,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-29 05:52:00,325 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2021-04-29 05:52:00,325 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 36 transitions, 210 flow. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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 05:52:00,325 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:00,326 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2021-04-29 05:52:00,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:00,412 INFO L129 PetriNetUnfolder]: 43/124 cut-off events. [2021-04-29 05:52:00,412 INFO L130 PetriNetUnfolder]: For 124/128 co-relation queries the response was YES. [2021-04-29 05:52:00,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 124 events. 43/124 cut-off events. For 124/128 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 519 event pairs, 7 based on Foata normal form. 11/135 useless extension candidates. Maximal degree in co-relation 449. Up to 83 conditions per place. [2021-04-29 05:52:00,414 INFO L132 encePairwiseOnDemand]: 38/44 looper letters, 29 selfloop transitions, 16 changer transitions 1/53 dead transitions. [2021-04-29 05:52:00,414 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 53 transitions, 411 flow [2021-04-29 05:52:00,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 05:52:00,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 05:52:00,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 122 transitions. [2021-04-29 05:52:00,416 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5545454545454546 [2021-04-29 05:52:00,417 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 122 transitions. [2021-04-29 05:52:00,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 122 transitions. [2021-04-29 05:52:00,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:00,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 122 transitions. [2021-04-29 05:52:00,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 05:52:00,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 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 05:52:00,420 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 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 05:52:00,420 INFO L185 Difference]: Start difference. First operand has 29 places, 36 transitions, 210 flow. Second operand 5 states and 122 transitions. [2021-04-29 05:52:00,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 53 transitions, 411 flow [2021-04-29 05:52:00,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 53 transitions, 395 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-04-29 05:52:00,426 INFO L241 Difference]: Finished difference. Result has 34 places, 46 transitions, 336 flow [2021-04-29 05:52:00,426 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=336, PETRI_PLACES=34, PETRI_TRANSITIONS=46} [2021-04-29 05:52:00,426 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, -2 predicate places. [2021-04-29 05:52:00,427 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:00,427 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 46 transitions, 336 flow [2021-04-29 05:52:00,427 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 46 transitions, 336 flow [2021-04-29 05:52:00,428 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 46 transitions, 336 flow [2021-04-29 05:52:00,441 INFO L129 PetriNetUnfolder]: 33/110 cut-off events. [2021-04-29 05:52:00,442 INFO L130 PetriNetUnfolder]: For 149/156 co-relation queries the response was YES. [2021-04-29 05:52:00,442 INFO L84 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 110 events. 33/110 cut-off events. For 149/156 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 458 event pairs, 4 based on Foata normal form. 7/117 useless extension candidates. Maximal degree in co-relation 347. Up to 49 conditions per place. [2021-04-29 05:52:00,444 INFO L146 LiptonReduction]: Number of co-enabled transitions 60 [2021-04-29 05:52:00,451 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:00,451 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:00,451 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-04-29 05:52:00,452 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 46 transitions, 336 flow [2021-04-29 05:52:00,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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 05:52:00,453 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:00,453 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:00,453 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 05:52:00,453 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:00,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:00,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1501618200, now seen corresponding path program 4 times [2021-04-29 05:52:00,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:00,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965194197] [2021-04-29 05:52:00,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:00,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:00,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:00,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:00,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:00,498 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 05:52:00,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965194197] [2021-04-29 05:52:00,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:00,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 05:52:00,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269024475] [2021-04-29 05:52:00,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 05:52:00,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:00,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 05:52:00,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-29 05:52:00,503 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2021-04-29 05:52:00,504 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 46 transitions, 336 flow. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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 05:52:00,504 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:00,504 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2021-04-29 05:52:00,504 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:00,576 INFO L129 PetriNetUnfolder]: 40/123 cut-off events. [2021-04-29 05:52:00,576 INFO L130 PetriNetUnfolder]: For 232/258 co-relation queries the response was YES. [2021-04-29 05:52:00,577 INFO L84 FinitePrefix]: Finished finitePrefix Result has 532 conditions, 123 events. 40/123 cut-off events. For 232/258 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 537 event pairs, 8 based on Foata normal form. 15/137 useless extension candidates. Maximal degree in co-relation 504. Up to 80 conditions per place. [2021-04-29 05:52:00,578 INFO L132 encePairwiseOnDemand]: 38/44 looper letters, 29 selfloop transitions, 17 changer transitions 2/55 dead transitions. [2021-04-29 05:52:00,578 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 55 transitions, 492 flow [2021-04-29 05:52:00,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 05:52:00,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 05:52:00,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 122 transitions. [2021-04-29 05:52:00,580 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5545454545454546 [2021-04-29 05:52:00,580 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 122 transitions. [2021-04-29 05:52:00,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 122 transitions. [2021-04-29 05:52:00,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:00,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 122 transitions. [2021-04-29 05:52:00,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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 05:52:00,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 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 05:52:00,583 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 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 05:52:00,583 INFO L185 Difference]: Start difference. First operand has 34 places, 46 transitions, 336 flow. Second operand 5 states and 122 transitions. [2021-04-29 05:52:00,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 55 transitions, 492 flow [2021-04-29 05:52:00,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 55 transitions, 488 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 05:52:00,589 INFO L241 Difference]: Finished difference. Result has 38 places, 48 transitions, 397 flow [2021-04-29 05:52:00,589 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=397, PETRI_PLACES=38, PETRI_TRANSITIONS=48} [2021-04-29 05:52:00,589 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 2 predicate places. [2021-04-29 05:52:00,590 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:00,590 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 48 transitions, 397 flow [2021-04-29 05:52:00,590 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 48 transitions, 397 flow [2021-04-29 05:52:00,591 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 48 transitions, 397 flow [2021-04-29 05:52:00,603 INFO L129 PetriNetUnfolder]: 29/101 cut-off events. [2021-04-29 05:52:00,603 INFO L130 PetriNetUnfolder]: For 169/174 co-relation queries the response was YES. [2021-04-29 05:52:00,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 101 events. 29/101 cut-off events. For 169/174 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 429 event pairs, 2 based on Foata normal form. 5/106 useless extension candidates. Maximal degree in co-relation 344. Up to 47 conditions per place. [2021-04-29 05:52:00,605 INFO L146 LiptonReduction]: Number of co-enabled transitions 50 [2021-04-29 05:52:00,612 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:00,612 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:00,612 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-04-29 05:52:00,614 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 48 transitions, 397 flow [2021-04-29 05:52:00,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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 05:52:00,614 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:00,614 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:00,614 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 05:52:00,615 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:00,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:00,615 INFO L82 PathProgramCache]: Analyzing trace with hash -282749312, now seen corresponding path program 5 times [2021-04-29 05:52:00,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:00,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839137920] [2021-04-29 05:52:00,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:00,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:00,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:00,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:00,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:00,653 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 05:52:00,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839137920] [2021-04-29 05:52:00,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:00,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 05:52:00,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006784783] [2021-04-29 05:52:00,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 05:52:00,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:00,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 05:52:00,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-29 05:52:00,656 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2021-04-29 05:52:00,656 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 48 transitions, 397 flow. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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 05:52:00,656 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:00,656 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2021-04-29 05:52:00,656 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:00,722 INFO L129 PetriNetUnfolder]: 23/74 cut-off events. [2021-04-29 05:52:00,723 INFO L130 PetriNetUnfolder]: For 124/124 co-relation queries the response was YES. [2021-04-29 05:52:00,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 74 events. 23/74 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 243 event pairs, 6 based on Foata normal form. 5/79 useless extension candidates. Maximal degree in co-relation 323. Up to 57 conditions per place. [2021-04-29 05:52:00,724 INFO L132 encePairwiseOnDemand]: 37/44 looper letters, 19 selfloop transitions, 14 changer transitions 6/46 dead transitions. [2021-04-29 05:52:00,724 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 46 transitions, 441 flow [2021-04-29 05:52:00,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 05:52:00,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 05:52:00,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 120 transitions. [2021-04-29 05:52:00,726 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2021-04-29 05:52:00,726 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 120 transitions. [2021-04-29 05:52:00,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 120 transitions. [2021-04-29 05:52:00,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:00,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 120 transitions. [2021-04-29 05:52:00,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 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 05:52:00,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 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 05:52:00,729 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 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 05:52:00,729 INFO L185 Difference]: Start difference. First operand has 38 places, 48 transitions, 397 flow. Second operand 5 states and 120 transitions. [2021-04-29 05:52:00,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 46 transitions, 441 flow [2021-04-29 05:52:00,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 46 transitions, 381 flow, removed 11 selfloop flow, removed 5 redundant places. [2021-04-29 05:52:00,733 INFO L241 Difference]: Finished difference. Result has 39 places, 40 transitions, 308 flow [2021-04-29 05:52:00,734 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=308, PETRI_PLACES=39, PETRI_TRANSITIONS=40} [2021-04-29 05:52:00,734 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places. [2021-04-29 05:52:00,734 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:00,734 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 40 transitions, 308 flow [2021-04-29 05:52:00,735 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 40 transitions, 308 flow [2021-04-29 05:52:00,735 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 40 transitions, 308 flow [2021-04-29 05:52:00,742 INFO L129 PetriNetUnfolder]: 11/56 cut-off events. [2021-04-29 05:52:00,742 INFO L130 PetriNetUnfolder]: For 119/123 co-relation queries the response was YES. [2021-04-29 05:52:00,742 INFO L84 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 56 events. 11/56 cut-off events. For 119/123 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 199 event pairs, 2 based on Foata normal form. 4/60 useless extension candidates. Maximal degree in co-relation 169. Up to 23 conditions per place. [2021-04-29 05:52:00,743 INFO L146 LiptonReduction]: Number of co-enabled transitions 20 [2021-04-29 05:52:00,748 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:00,749 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:00,749 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-04-29 05:52:00,750 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 40 transitions, 308 flow [2021-04-29 05:52:00,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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 05:52:00,751 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:00,751 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:00,751 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 05:52:00,751 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:00,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:00,752 INFO L82 PathProgramCache]: Analyzing trace with hash 134163900, now seen corresponding path program 6 times [2021-04-29 05:52:00,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:00,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975942180] [2021-04-29 05:52:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:00,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:00,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:00,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:00,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:00,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:00,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:00,800 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 05:52:00,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975942180] [2021-04-29 05:52:00,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:00,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:52:00,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471393571] [2021-04-29 05:52:00,802 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 05:52:00,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:00,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 05:52:00,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-04-29 05:52:00,803 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2021-04-29 05:52:00,803 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 40 transitions, 308 flow. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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 05:52:00,804 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:00,804 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2021-04-29 05:52:00,804 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:00,892 INFO L129 PetriNetUnfolder]: 14/62 cut-off events. [2021-04-29 05:52:00,893 INFO L130 PetriNetUnfolder]: For 148/148 co-relation queries the response was YES. [2021-04-29 05:52:00,893 INFO L84 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 62 events. 14/62 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 213 event pairs, 4 based on Foata normal form. 1/63 useless extension candidates. Maximal degree in co-relation 222. Up to 26 conditions per place. [2021-04-29 05:52:00,894 INFO L132 encePairwiseOnDemand]: 37/44 looper letters, 12 selfloop transitions, 22 changer transitions 3/44 dead transitions. [2021-04-29 05:52:00,894 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 44 transitions, 410 flow [2021-04-29 05:52:00,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 05:52:00,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 05:52:00,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 147 transitions. [2021-04-29 05:52:00,896 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5568181818181818 [2021-04-29 05:52:00,896 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 147 transitions. [2021-04-29 05:52:00,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 147 transitions. [2021-04-29 05:52:00,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:00,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 147 transitions. [2021-04-29 05:52:00,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 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 05:52:00,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 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 05:52:00,898 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 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 05:52:00,899 INFO L185 Difference]: Start difference. First operand has 39 places, 40 transitions, 308 flow. Second operand 6 states and 147 transitions. [2021-04-29 05:52:00,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 44 transitions, 410 flow [2021-04-29 05:52:00,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 44 transitions, 379 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-04-29 05:52:00,902 INFO L241 Difference]: Finished difference. Result has 40 places, 38 transitions, 306 flow [2021-04-29 05:52:00,902 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=306, PETRI_PLACES=40, PETRI_TRANSITIONS=38} [2021-04-29 05:52:00,903 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 4 predicate places. [2021-04-29 05:52:00,903 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:00,903 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 38 transitions, 306 flow [2021-04-29 05:52:00,903 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 38 transitions, 306 flow [2021-04-29 05:52:00,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 38 transitions, 306 flow [2021-04-29 05:52:00,910 INFO L129 PetriNetUnfolder]: 10/54 cut-off events. [2021-04-29 05:52:00,910 INFO L130 PetriNetUnfolder]: For 126/126 co-relation queries the response was YES. [2021-04-29 05:52:00,910 INFO L84 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 54 events. 10/54 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 183 event pairs, 2 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 147. Up to 22 conditions per place. [2021-04-29 05:52:00,911 INFO L146 LiptonReduction]: Number of co-enabled transitions 16 [2021-04-29 05:52:00,916 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:00,916 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:00,916 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-04-29 05:52:00,917 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 38 transitions, 306 flow [2021-04-29 05:52:00,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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 05:52:00,918 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:00,918 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:00,918 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 05:52:00,918 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:00,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:00,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1859620886, now seen corresponding path program 7 times [2021-04-29 05:52:00,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:00,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725271310] [2021-04-29 05:52:00,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:00,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:00,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:00,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:00,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:00,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:00,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:01,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:01,004 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 05:52:01,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725271310] [2021-04-29 05:52:01,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:01,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-29 05:52:01,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022523233] [2021-04-29 05:52:01,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:52:01,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:01,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:52:01,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:52:01,006 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2021-04-29 05:52:01,007 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 38 transitions, 306 flow. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 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 05:52:01,007 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:01,007 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2021-04-29 05:52:01,007 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:01,131 INFO L129 PetriNetUnfolder]: 12/59 cut-off events. [2021-04-29 05:52:01,131 INFO L130 PetriNetUnfolder]: For 161/161 co-relation queries the response was YES. [2021-04-29 05:52:01,132 INFO L84 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 59 events. 12/59 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 206 event pairs, 4 based on Foata normal form. 1/60 useless extension candidates. Maximal degree in co-relation 182. Up to 24 conditions per place. [2021-04-29 05:52:01,133 INFO L132 encePairwiseOnDemand]: 37/44 looper letters, 12 selfloop transitions, 21 changer transitions 3/43 dead transitions. [2021-04-29 05:52:01,133 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 43 transitions, 415 flow [2021-04-29 05:52:01,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-29 05:52:01,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-29 05:52:01,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 188 transitions. [2021-04-29 05:52:01,135 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5340909090909091 [2021-04-29 05:52:01,135 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 188 transitions. [2021-04-29 05:52:01,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 188 transitions. [2021-04-29 05:52:01,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:01,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 188 transitions. [2021-04-29 05:52:01,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 23.5) internal successors, (188), 8 states have internal predecessors, (188), 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 05:52:01,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 44.0) internal successors, (396), 9 states have internal predecessors, (396), 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 05:52:01,138 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 44.0) internal successors, (396), 9 states have internal predecessors, (396), 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 05:52:01,139 INFO L185 Difference]: Start difference. First operand has 40 places, 38 transitions, 306 flow. Second operand 8 states and 188 transitions. [2021-04-29 05:52:01,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 43 transitions, 415 flow [2021-04-29 05:52:01,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 43 transitions, 380 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-29 05:52:01,143 INFO L241 Difference]: Finished difference. Result has 43 places, 37 transitions, 305 flow [2021-04-29 05:52:01,143 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=305, PETRI_PLACES=43, PETRI_TRANSITIONS=37} [2021-04-29 05:52:01,144 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 7 predicate places. [2021-04-29 05:52:01,144 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:01,144 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 37 transitions, 305 flow [2021-04-29 05:52:01,144 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 37 transitions, 305 flow [2021-04-29 05:52:01,145 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 37 transitions, 305 flow [2021-04-29 05:52:01,151 INFO L129 PetriNetUnfolder]: 9/52 cut-off events. [2021-04-29 05:52:01,152 INFO L130 PetriNetUnfolder]: For 141/142 co-relation queries the response was YES. [2021-04-29 05:52:01,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 52 events. 9/52 cut-off events. For 141/142 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 165 event pairs, 2 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 147. Up to 21 conditions per place. [2021-04-29 05:52:01,153 INFO L146 LiptonReduction]: Number of co-enabled transitions 16 [2021-04-29 05:52:01,157 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:01,157 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:01,158 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-04-29 05:52:01,159 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 37 transitions, 305 flow [2021-04-29 05:52:01,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 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 05:52:01,160 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:01,160 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:01,160 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 05:52:01,160 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:01,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:01,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1606403434, now seen corresponding path program 8 times [2021-04-29 05:52:01,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:01,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727904652] [2021-04-29 05:52:01,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:01,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:01,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:01,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:01,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:01,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:01,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:01,239 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 05:52:01,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727904652] [2021-04-29 05:52:01,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:01,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-29 05:52:01,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179882455] [2021-04-29 05:52:01,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:52:01,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:01,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:52:01,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:52:01,244 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2021-04-29 05:52:01,245 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 305 flow. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 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 05:52:01,245 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:01,245 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2021-04-29 05:52:01,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:01,370 INFO L129 PetriNetUnfolder]: 8/52 cut-off events. [2021-04-29 05:52:01,371 INFO L130 PetriNetUnfolder]: For 153/157 co-relation queries the response was YES. [2021-04-29 05:52:01,371 INFO L84 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 52 events. 8/52 cut-off events. For 153/157 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 173 event pairs, 4 based on Foata normal form. 8/60 useless extension candidates. Maximal degree in co-relation 176. Up to 22 conditions per place. [2021-04-29 05:52:01,372 INFO L132 encePairwiseOnDemand]: 36/44 looper letters, 10 selfloop transitions, 12 changer transitions 8/37 dead transitions. [2021-04-29 05:52:01,372 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 37 transitions, 358 flow [2021-04-29 05:52:01,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-29 05:52:01,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-29 05:52:01,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 187 transitions. [2021-04-29 05:52:01,373 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.53125 [2021-04-29 05:52:01,374 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 187 transitions. [2021-04-29 05:52:01,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 187 transitions. [2021-04-29 05:52:01,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:01,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 187 transitions. [2021-04-29 05:52:01,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 23.375) internal successors, (187), 8 states have internal predecessors, (187), 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 05:52:01,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 44.0) internal successors, (396), 9 states have internal predecessors, (396), 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 05:52:01,376 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 44.0) internal successors, (396), 9 states have internal predecessors, (396), 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 05:52:01,376 INFO L185 Difference]: Start difference. First operand has 41 places, 37 transitions, 305 flow. Second operand 8 states and 187 transitions. [2021-04-29 05:52:01,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 37 transitions, 358 flow [2021-04-29 05:52:01,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 37 transitions, 318 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-04-29 05:52:01,380 INFO L241 Difference]: Finished difference. Result has 45 places, 27 transitions, 206 flow [2021-04-29 05:52:01,380 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=206, PETRI_PLACES=45, PETRI_TRANSITIONS=27} [2021-04-29 05:52:01,380 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 9 predicate places. [2021-04-29 05:52:01,380 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:01,381 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 27 transitions, 206 flow [2021-04-29 05:52:01,381 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 27 transitions, 206 flow [2021-04-29 05:52:01,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 27 transitions, 206 flow [2021-04-29 05:52:01,386 INFO L129 PetriNetUnfolder]: 5/38 cut-off events. [2021-04-29 05:52:01,386 INFO L130 PetriNetUnfolder]: For 110/112 co-relation queries the response was YES. [2021-04-29 05:52:01,386 INFO L84 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 38 events. 5/38 cut-off events. For 110/112 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 84 event pairs, 2 based on Foata normal form. 2/40 useless extension candidates. Maximal degree in co-relation 99. Up to 14 conditions per place. [2021-04-29 05:52:01,387 INFO L146 LiptonReduction]: Number of co-enabled transitions 16 [2021-04-29 05:52:01,389 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:01,389 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:01,390 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-04-29 05:52:01,390 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 27 transitions, 206 flow [2021-04-29 05:52:01,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 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 05:52:01,391 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:01,391 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:01,391 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 05:52:01,391 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:01,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:01,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1557263956, now seen corresponding path program 9 times [2021-04-29 05:52:01,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:01,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982547093] [2021-04-29 05:52:01,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:01,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:01,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:01,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:52:01,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:01,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:01,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:01,437 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 05:52:01,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982547093] [2021-04-29 05:52:01,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:01,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:52:01,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762284315] [2021-04-29 05:52:01,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 05:52:01,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:01,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 05:52:01,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-29 05:52:01,440 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2021-04-29 05:52:01,440 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 27 transitions, 206 flow. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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 05:52:01,440 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:01,440 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2021-04-29 05:52:01,440 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:01,513 INFO L129 PetriNetUnfolder]: 6/43 cut-off events. [2021-04-29 05:52:01,513 INFO L130 PetriNetUnfolder]: For 167/170 co-relation queries the response was YES. [2021-04-29 05:52:01,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 43 events. 6/43 cut-off events. For 167/170 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 113 event pairs, 2 based on Foata normal form. 5/48 useless extension candidates. Maximal degree in co-relation 84. Up to 17 conditions per place. [2021-04-29 05:52:01,514 INFO L132 encePairwiseOnDemand]: 36/44 looper letters, 6 selfloop transitions, 16 changer transitions 3/32 dead transitions. [2021-04-29 05:52:01,514 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 32 transitions, 294 flow [2021-04-29 05:52:01,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 05:52:01,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 05:52:01,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 139 transitions. [2021-04-29 05:52:01,516 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5265151515151515 [2021-04-29 05:52:01,516 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 139 transitions. [2021-04-29 05:52:01,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 139 transitions. [2021-04-29 05:52:01,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:01,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 139 transitions. [2021-04-29 05:52:01,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 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 05:52:01,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 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 05:52:01,518 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 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 05:52:01,519 INFO L185 Difference]: Start difference. First operand has 42 places, 27 transitions, 206 flow. Second operand 6 states and 139 transitions. [2021-04-29 05:52:01,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 32 transitions, 294 flow [2021-04-29 05:52:01,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 32 transitions, 239 flow, removed 6 selfloop flow, removed 10 redundant places. [2021-04-29 05:52:01,522 INFO L241 Difference]: Finished difference. Result has 39 places, 28 transitions, 218 flow [2021-04-29 05:52:01,522 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=218, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2021-04-29 05:52:01,522 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places. [2021-04-29 05:52:01,522 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:01,523 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 28 transitions, 218 flow [2021-04-29 05:52:01,523 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 28 transitions, 218 flow [2021-04-29 05:52:01,524 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 28 transitions, 218 flow [2021-04-29 05:52:01,528 INFO L129 PetriNetUnfolder]: 3/33 cut-off events. [2021-04-29 05:52:01,528 INFO L130 PetriNetUnfolder]: For 59/62 co-relation queries the response was YES. [2021-04-29 05:52:01,528 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 33 events. 3/33 cut-off events. For 59/62 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 62 event pairs, 0 based on Foata normal form. 3/36 useless extension candidates. Maximal degree in co-relation 61. Up to 11 conditions per place. [2021-04-29 05:52:01,529 INFO L146 LiptonReduction]: Number of co-enabled transitions 16 [2021-04-29 05:52:01,532 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:01,532 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:01,532 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-04-29 05:52:01,533 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 218 flow [2021-04-29 05:52:01,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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 05:52:01,534 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:01,534 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:01,534 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 05:52:01,534 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:01,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:01,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1519717944, now seen corresponding path program 10 times [2021-04-29 05:52:01,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:01,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404743371] [2021-04-29 05:52:01,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:01,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:01,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:01,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:01,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:52:01,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:01,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:01,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:01,581 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 05:52:01,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404743371] [2021-04-29 05:52:01,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:01,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:52:01,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517847454] [2021-04-29 05:52:01,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 05:52:01,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:01,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 05:52:01,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-29 05:52:01,583 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2021-04-29 05:52:01,584 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 218 flow. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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 05:52:01,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:01,584 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2021-04-29 05:52:01,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:01,643 INFO L129 PetriNetUnfolder]: 5/38 cut-off events. [2021-04-29 05:52:01,643 INFO L130 PetriNetUnfolder]: For 124/124 co-relation queries the response was YES. [2021-04-29 05:52:01,643 INFO L84 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 38 events. 5/38 cut-off events. For 124/124 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 80 event pairs, 1 based on Foata normal form. 1/39 useless extension candidates. Maximal degree in co-relation 86. Up to 15 conditions per place. [2021-04-29 05:52:01,644 INFO L132 encePairwiseOnDemand]: 37/44 looper letters, 6 selfloop transitions, 12 changer transitions 4/29 dead transitions. [2021-04-29 05:52:01,644 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 29 transitions, 270 flow [2021-04-29 05:52:01,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 05:52:01,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 05:52:01,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 137 transitions. [2021-04-29 05:52:01,646 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5189393939393939 [2021-04-29 05:52:01,646 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 137 transitions. [2021-04-29 05:52:01,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 137 transitions. [2021-04-29 05:52:01,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:01,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 137 transitions. [2021-04-29 05:52:01,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 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 05:52:01,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 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 05:52:01,649 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 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 05:52:01,649 INFO L185 Difference]: Start difference. First operand has 39 places, 28 transitions, 218 flow. Second operand 6 states and 137 transitions. [2021-04-29 05:52:01,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 29 transitions, 270 flow [2021-04-29 05:52:01,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 29 transitions, 241 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-04-29 05:52:01,652 INFO L241 Difference]: Finished difference. Result has 39 places, 24 transitions, 179 flow [2021-04-29 05:52:01,652 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=179, PETRI_PLACES=39, PETRI_TRANSITIONS=24} [2021-04-29 05:52:01,652 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places. [2021-04-29 05:52:01,652 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:01,653 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 24 transitions, 179 flow [2021-04-29 05:52:01,653 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 24 transitions, 179 flow [2021-04-29 05:52:01,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 24 transitions, 179 flow [2021-04-29 05:52:01,657 INFO L129 PetriNetUnfolder]: 2/26 cut-off events. [2021-04-29 05:52:01,657 INFO L130 PetriNetUnfolder]: For 70/73 co-relation queries the response was YES. [2021-04-29 05:52:01,658 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 26 events. 2/26 cut-off events. For 70/73 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 37 event pairs, 0 based on Foata normal form. 1/27 useless extension candidates. Maximal degree in co-relation 65. Up to 8 conditions per place. [2021-04-29 05:52:01,658 INFO L146 LiptonReduction]: Number of co-enabled transitions 4 [2021-04-29 05:52:01,661 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:01,661 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:01,661 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-04-29 05:52:01,662 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 24 transitions, 179 flow [2021-04-29 05:52:01,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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 05:52:01,662 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:01,663 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:01,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-29 05:52:01,663 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:01,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:01,663 INFO L82 PathProgramCache]: Analyzing trace with hash 178926550, now seen corresponding path program 11 times [2021-04-29 05:52:01,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:01,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595297003] [2021-04-29 05:52:01,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:01,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:01,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:01,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:01,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:01,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:01,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:01,714 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 05:52:01,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595297003] [2021-04-29 05:52:01,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:01,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-29 05:52:01,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207909275] [2021-04-29 05:52:01,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:52:01,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:01,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:52:01,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:52:01,717 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2021-04-29 05:52:01,717 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 24 transitions, 179 flow. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 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 05:52:01,717 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:01,717 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2021-04-29 05:52:01,717 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:01,805 INFO L129 PetriNetUnfolder]: 2/26 cut-off events. [2021-04-29 05:52:01,805 INFO L130 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2021-04-29 05:52:01,806 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 26 events. 2/26 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 33 event pairs, 1 based on Foata normal form. 2/28 useless extension candidates. Maximal degree in co-relation 64. Up to 9 conditions per place. [2021-04-29 05:52:01,806 INFO L132 encePairwiseOnDemand]: 38/44 looper letters, 5 selfloop transitions, 3 changer transitions 8/23 dead transitions. [2021-04-29 05:52:01,806 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 23 transitions, 188 flow [2021-04-29 05:52:01,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-29 05:52:01,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-29 05:52:01,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 178 transitions. [2021-04-29 05:52:01,809 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5056818181818182 [2021-04-29 05:52:01,809 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 178 transitions. [2021-04-29 05:52:01,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 178 transitions. [2021-04-29 05:52:01,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:01,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 178 transitions. [2021-04-29 05:52:01,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 22.25) internal successors, (178), 8 states have internal predecessors, (178), 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 05:52:01,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 44.0) internal successors, (396), 9 states have internal predecessors, (396), 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 05:52:01,812 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 44.0) internal successors, (396), 9 states have internal predecessors, (396), 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 05:52:01,812 INFO L185 Difference]: Start difference. First operand has 38 places, 24 transitions, 179 flow. Second operand 8 states and 178 transitions. [2021-04-29 05:52:01,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 23 transitions, 188 flow [2021-04-29 05:52:01,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 23 transitions, 156 flow, removed 1 selfloop flow, removed 8 redundant places. [2021-04-29 05:52:01,814 INFO L241 Difference]: Finished difference. Result has 37 places, 15 transitions, 74 flow [2021-04-29 05:52:01,814 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=74, PETRI_PLACES=37, PETRI_TRANSITIONS=15} [2021-04-29 05:52:01,814 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2021-04-29 05:52:01,815 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:01,815 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 15 transitions, 74 flow [2021-04-29 05:52:01,815 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 15 transitions, 74 flow [2021-04-29 05:52:01,815 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 15 transitions, 74 flow [2021-04-29 05:52:01,818 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-04-29 05:52:01,818 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-29 05:52:01,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 15 events. 0/15 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-04-29 05:52:01,818 INFO L146 LiptonReduction]: Number of co-enabled transitions 2 [2021-04-29 05:52:01,929 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:01,929 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-29 05:52:01,929 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 114 [2021-04-29 05:52:01,930 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 15 transitions, 72 flow [2021-04-29 05:52:01,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 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 05:52:01,930 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:01,930 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:01,931 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-29 05:52:01,931 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:01,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:01,931 INFO L82 PathProgramCache]: Analyzing trace with hash 317664026, now seen corresponding path program 12 times [2021-04-29 05:52:01,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:01,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892363944] [2021-04-29 05:52:01,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:01,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:01,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:01,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:52:01,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:01,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:01,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:01,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:01,975 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 05:52:01,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892363944] [2021-04-29 05:52:01,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:01,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:52:01,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528147048] [2021-04-29 05:52:01,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 05:52:01,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:01,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 05:52:01,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-29 05:52:01,977 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 45 [2021-04-29 05:52:01,977 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 15 transitions, 72 flow. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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 05:52:01,978 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:01,978 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 45 [2021-04-29 05:52:01,978 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:02,003 INFO L129 PetriNetUnfolder]: 1/11 cut-off events. [2021-04-29 05:52:02,003 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2021-04-29 05:52:02,003 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 11 events. 1/11 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 1/12 useless extension candidates. Maximal degree in co-relation 21. Up to 4 conditions per place. [2021-04-29 05:52:02,003 INFO L132 encePairwiseOnDemand]: 40/45 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2021-04-29 05:52:02,003 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 10 transitions, 68 flow [2021-04-29 05:52:02,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 05:52:02,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 05:52:02,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 108 transitions. [2021-04-29 05:52:02,005 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.48 [2021-04-29 05:52:02,005 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 108 transitions. [2021-04-29 05:52:02,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 108 transitions. [2021-04-29 05:52:02,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:02,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 108 transitions. [2021-04-29 05:52:02,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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 05:52:02,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 45.0) internal successors, (270), 6 states have internal predecessors, (270), 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 05:52:02,007 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 45.0) internal successors, (270), 6 states have internal predecessors, (270), 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 05:52:02,007 INFO L185 Difference]: Start difference. First operand has 29 places, 15 transitions, 72 flow. Second operand 5 states and 108 transitions. [2021-04-29 05:52:02,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 10 transitions, 68 flow [2021-04-29 05:52:02,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 10 transitions, 50 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-04-29 05:52:02,008 INFO L241 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2021-04-29 05:52:02,008 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2021-04-29 05:52:02,008 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, -14 predicate places. [2021-04-29 05:52:02,008 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:02,008 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 22 places, 0 transitions, 0 flow [2021-04-29 05:52:02,009 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 22 places, 0 transitions, 0 flow [2021-04-29 05:52:02,009 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 05:52:02,009 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 05:52:02,009 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 05:52:02,009 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 05:52:02,010 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 05:52:02,010 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:02,010 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:02,014 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-04-29 05:52:02,015 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 05:52:02,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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 05:52:02,016 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-29 05:52:02,020 INFO L202 PluginConnector]: Adding new model ticket-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 05:52:02 BasicIcfg [2021-04-29 05:52:02,020 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 05:52:02,022 INFO L168 Benchmark]: Toolchain (without parser) took 4878.59 ms. Allocated memory was 302.0 MB in the beginning and 364.9 MB in the end (delta: 62.9 MB). Free memory was 268.7 MB in the beginning and 269.4 MB in the end (delta: -721.4 kB). Peak memory consumption was 64.2 MB. Max. memory is 16.0 GB. [2021-04-29 05:52:02,022 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.26 ms. Allocated memory is still 302.0 MB. Free memory was 269.9 MB in the beginning and 269.7 MB in the end (delta: 153.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 05:52:02,022 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.05 ms. Allocated memory is still 302.0 MB. Free memory was 284.0 MB in the beginning and 282.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 05:52:02,023 INFO L168 Benchmark]: Boogie Preprocessor took 19.39 ms. Allocated memory is still 302.0 MB. Free memory was 282.6 MB in the beginning and 281.7 MB in the end (delta: 894.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 05:52:02,023 INFO L168 Benchmark]: RCFGBuilder took 498.64 ms. Allocated memory is still 302.0 MB. Free memory was 281.7 MB in the beginning and 278.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-04-29 05:52:02,023 INFO L168 Benchmark]: TraceAbstraction took 4256.83 ms. Allocated memory was 302.0 MB in the beginning and 364.9 MB in the end (delta: 62.9 MB). Free memory was 277.6 MB in the beginning and 269.4 MB in the end (delta: 8.2 MB). Peak memory consumption was 75.3 MB. Max. memory is 16.0 GB. [2021-04-29 05:52:02,025 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 0.26 ms. Allocated memory is still 302.0 MB. Free memory was 269.9 MB in the beginning and 269.7 MB in the end (delta: 153.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 36.05 ms. Allocated memory is still 302.0 MB. Free memory was 284.0 MB in the beginning and 282.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.39 ms. Allocated memory is still 302.0 MB. Free memory was 282.6 MB in the beginning and 281.7 MB in the end (delta: 894.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 498.64 ms. Allocated memory is still 302.0 MB. Free memory was 281.7 MB in the beginning and 278.0 MB in the end (delta: 3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4256.83 ms. Allocated memory was 302.0 MB in the beginning and 364.9 MB in the end (delta: 62.9 MB). Free memory was 277.6 MB in the beginning and 269.4 MB in the end (delta: 8.2 MB). Peak memory consumption was 75.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1255.6ms, 35 PlacesBefore, 36 PlacesAfterwards, 25 TransitionsBefore, 26 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 4 FixpointIterations, 1 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 14 TotalNumberOfCompositions, 1156 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 375, positive: 299, positive conditional: 299, positive unconditional: 0, negative: 76, negative conditional: 76, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 224, positive: 186, positive conditional: 0, positive unconditional: 186, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 224, positive: 186, positive conditional: 0, positive unconditional: 186, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 224, positive: 153, positive conditional: 0, positive unconditional: 153, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 71, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 346, positive: 139, positive conditional: 0, positive unconditional: 139, negative: 207, negative conditional: 0, negative unconditional: 207, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 375, positive: 113, positive conditional: 113, positive unconditional: 0, negative: 38, negative conditional: 38, negative unconditional: 0, unknown: 224, unknown conditional: 224, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 224, Positive cache size: 186, Positive conditional cache size: 186, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.5ms, 37 PlacesBefore, 30 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 122 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): 224, Positive cache size: 186, Positive conditional cache size: 186, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.8ms, 33 PlacesBefore, 29 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 56 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): 224, Positive cache size: 186, Positive conditional cache size: 186, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.5ms, 34 PlacesBefore, 34 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 60 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): 224, Positive cache size: 186, Positive conditional cache size: 186, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.0ms, 38 PlacesBefore, 38 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 50 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): 224, Positive cache size: 186, Positive conditional cache size: 186, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.1ms, 39 PlacesBefore, 39 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 20 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): 224, Positive cache size: 186, Positive conditional cache size: 186, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.6ms, 40 PlacesBefore, 40 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 16 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): 224, Positive cache size: 186, Positive conditional cache size: 186, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.0ms, 43 PlacesBefore, 41 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 16 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): 224, Positive cache size: 186, Positive conditional cache size: 186, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.6ms, 45 PlacesBefore, 42 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 16 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): 224, Positive cache size: 186, Positive conditional cache size: 186, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.0ms, 39 PlacesBefore, 39 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 16 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): 224, Positive cache size: 186, Positive conditional cache size: 186, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.8ms, 39 PlacesBefore, 38 PlacesAfterwards, 24 TransitionsBefore, 24 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): 224, Positive cache size: 186, Positive conditional cache size: 186, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 113.9ms, 37 PlacesBefore, 29 PlacesAfterwards, 15 TransitionsBefore, 15 TransitionsAfterwards, 2 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 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): 224, Positive cache size: 186, Positive conditional cache size: 186, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1ms, 22 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): 224, Positive cache size: 186, Positive conditional cache size: 186, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - PositiveResult [Line: 65]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 8.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4082.5ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1475.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1367.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 31 SDtfs, 34 SDslu, 7 SDs, 0 SdLazy, 672 SolverSat, 106 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 545.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 378.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=397occurred in iteration=4, InterpolantAutomatonStates: 73, 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: 17.6ms SsaConstructionTime, 125.2ms SatisfiabilityAnalysisTime, 591.8ms InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 168 ConstructedInterpolants, 0 QuantifiedInterpolants, 501 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...