/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 17:46:16,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 17:46:16,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 17:46:17,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 17:46:17,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 17:46:17,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 17:46:17,011 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 17:46:17,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 17:46:17,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 17:46:17,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 17:46:17,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 17:46:17,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 17:46:17,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 17:46:17,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 17:46:17,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 17:46:17,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 17:46:17,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 17:46:17,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 17:46:17,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 17:46:17,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 17:46:17,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 17:46:17,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 17:46:17,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 17:46:17,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 17:46:17,043 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-26 17:46:17,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-26 17:46:17,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-26 17:46:17,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-26 17:46:17,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-26 17:46:17,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-26 17:46:17,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 17:46:17,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 17:46:17,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 17:46:17,047 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 17:46:17,048 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 17:46:17,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 17:46:17,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 17:46:17,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 17:46:17,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 17:46:17,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 17:46:17,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 17:46:17,058 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 17:46:17,087 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 17:46:17,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 17:46:17,091 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 17:46:17,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 17:46:17,091 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 17:46:17,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 17:46:17,091 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 17:46:17,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 17:46:17,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 17:46:17,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 17:46:17,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 17:46:17,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 17:46:17,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 17:46:17,093 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 17:46:17,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 17:46:17,093 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 17:46:17,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 17:46:17,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 17:46:17,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 17:46:17,094 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 17:46:17,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 17:46:17,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 17:46:17,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 17:46:17,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 17:46:17,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 17:46:17,095 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 17:46:17,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 17:46:17,095 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 17:46:17,095 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 17:46:17,095 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 17:46:17,095 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 17:46:17,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 17:46:17,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 17:46:17,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 17:46:17,417 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 17:46:17,418 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 17:46:17,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl [2021-03-26 17:46:17,419 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl' [2021-03-26 17:46:17,453 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 17:46:17,455 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 17:46:17,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 17:46:17,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 17:46:17,456 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 17:46:17,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:17" (1/1) ... [2021-03-26 17:46:17,472 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:17" (1/1) ... [2021-03-26 17:46:17,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 17:46:17,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 17:46:17,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 17:46:17,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 17:46:17,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:17" (1/1) ... [2021-03-26 17:46:17,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:17" (1/1) ... [2021-03-26 17:46:17,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:17" (1/1) ... [2021-03-26 17:46:17,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:17" (1/1) ... [2021-03-26 17:46:17,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:17" (1/1) ... [2021-03-26 17:46:17,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:17" (1/1) ... [2021-03-26 17:46:17,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:17" (1/1) ... [2021-03-26 17:46:17,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 17:46:17,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 17:46:17,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 17:46:17,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 17:46:17,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:17" (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 [2021-03-26 17:46:17,554 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-26 17:46:17,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-26 17:46:17,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-26 17:46:17,557 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-26 17:46:17,557 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-26 17:46:17,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-26 17:46:17,557 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-26 17:46:17,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 17:46:17,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 17:46:17,558 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 17:46:17,718 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 17:46:17,718 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-26 17:46:17,720 INFO L202 PluginConnector]: Adding new model easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 05:46:17 BoogieIcfgContainer [2021-03-26 17:46:17,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 17:46:17,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 17:46:17,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 17:46:17,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 17:46:17,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:46:17" (1/2) ... [2021-03-26 17:46:17,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562c70e0 and model type easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 05:46:17, skipping insertion in model container [2021-03-26 17:46:17,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 05:46:17" (2/2) ... [2021-03-26 17:46:17,726 INFO L111 eAbstractionObserver]: Analyzing ICFG easy6.wvr.bpl [2021-03-26 17:46:17,731 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 17:46:17,733 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 17:46:17,734 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 17:46:17,759 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-26 17:46:17,773 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-26 17:46:17,791 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 17:46:17,791 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 17:46:17,791 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 17:46:17,791 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 17:46:17,791 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 17:46:17,792 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 17:46:17,792 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 17:46:17,792 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 17:46:17,800 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 35 transitions, 86 flow [2021-03-26 17:46:17,822 INFO L129 PetriNetUnfolder]: 0/33 cut-off events. [2021-03-26 17:46:17,822 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 17:46:17,836 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 33 events. 0/33 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 17:46:17,836 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 35 transitions, 86 flow [2021-03-26 17:46:17,840 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 31 transitions, 74 flow [2021-03-26 17:46:17,841 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:17,856 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 31 transitions, 74 flow [2021-03-26 17:46:17,859 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 31 transitions, 74 flow [2021-03-26 17:46:17,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 31 transitions, 74 flow [2021-03-26 17:46:17,882 INFO L129 PetriNetUnfolder]: 0/31 cut-off events. [2021-03-26 17:46:17,882 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 17:46:17,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 31 events. 0/31 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 17:46:17,890 INFO L142 LiptonReduction]: Number of co-enabled transitions 240 [2021-03-26 17:46:18,261 INFO L154 LiptonReduction]: Checked pairs total: 758 [2021-03-26 17:46:18,261 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-26 17:46:18,266 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 426 [2021-03-26 17:46:18,288 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-03-26 17:46:18,288 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 17:46:18,288 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:18,289 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:18,289 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:18,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:18,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1595522395, now seen corresponding path program 1 times [2021-03-26 17:46:18,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:18,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576893800] [2021-03-26 17:46:18,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:18,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:18,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:18,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:18,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:18,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:18,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:18,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:18,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:18,524 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 17:46:18,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:18,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:18,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576893800] [2021-03-26 17:46:18,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:18,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 17:46:18,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806351415] [2021-03-26 17:46:18,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 17:46:18,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:18,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 17:46:18,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 17:46:18,561 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 45 [2021-03-26 17:46:18,564 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 21 transitions, 54 flow. Second operand has 7 states, 7 states have (on average 35.857142857142854) internal successors, (251), 7 states have internal predecessors, (251), 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) [2021-03-26 17:46:18,564 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:18,565 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 45 [2021-03-26 17:46:18,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:18,685 INFO L129 PetriNetUnfolder]: 1/45 cut-off events. [2021-03-26 17:46:18,685 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-03-26 17:46:18,687 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 45 events. 1/45 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 114 event pairs, 0 based on Foata normal form. 1/45 useless extension candidates. Maximal degree in co-relation 52. Up to 5 conditions per place. [2021-03-26 17:46:18,688 INFO L132 encePairwiseOnDemand]: 39/45 looper letters, 7 selfloop transitions, 7 changer transitions 2/31 dead transitions. [2021-03-26 17:46:18,689 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 31 transitions, 106 flow [2021-03-26 17:46:18,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 17:46:18,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 17:46:18,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 297 transitions. [2021-03-26 17:46:18,704 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.825 [2021-03-26 17:46:18,704 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 297 transitions. [2021-03-26 17:46:18,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 297 transitions. [2021-03-26 17:46:18,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:18,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 297 transitions. [2021-03-26 17:46:18,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 37.125) internal successors, (297), 8 states have internal predecessors, (297), 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) [2021-03-26 17:46:18,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 45.0) internal successors, (405), 9 states have internal predecessors, (405), 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) [2021-03-26 17:46:18,724 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 45.0) internal successors, (405), 9 states have internal predecessors, (405), 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) [2021-03-26 17:46:18,725 INFO L185 Difference]: Start difference. First operand has 28 places, 21 transitions, 54 flow. Second operand 8 states and 297 transitions. [2021-03-26 17:46:18,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 31 transitions, 106 flow [2021-03-26 17:46:18,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 31 transitions, 98 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 17:46:18,729 INFO L241 Difference]: Finished difference. Result has 34 places, 26 transitions, 84 flow [2021-03-26 17:46:18,731 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=84, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2021-03-26 17:46:18,732 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 6 predicate places. [2021-03-26 17:46:18,732 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:18,732 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 26 transitions, 84 flow [2021-03-26 17:46:18,733 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 26 transitions, 84 flow [2021-03-26 17:46:18,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 26 transitions, 84 flow [2021-03-26 17:46:18,745 INFO L129 PetriNetUnfolder]: 0/38 cut-off events. [2021-03-26 17:46:18,745 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 17:46:18,746 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 38 events. 0/38 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 79 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-26 17:46:18,746 INFO L142 LiptonReduction]: Number of co-enabled transitions 122 [2021-03-26 17:46:18,829 INFO L154 LiptonReduction]: Checked pairs total: 334 [2021-03-26 17:46:18,829 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 17:46:18,830 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 98 [2021-03-26 17:46:18,832 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 25 transitions, 87 flow [2021-03-26 17:46:18,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 35.857142857142854) internal successors, (251), 7 states have internal predecessors, (251), 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) [2021-03-26 17:46:18,832 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:18,833 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:18,833 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 17:46:18,833 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:18,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:18,834 INFO L82 PathProgramCache]: Analyzing trace with hash -317260477, now seen corresponding path program 2 times [2021-03-26 17:46:18,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:18,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733092649] [2021-03-26 17:46:18,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:18,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:18,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:18,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:18,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:18,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:18,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:18,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:18,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:18,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:18,937 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 17:46:18,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:18,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:18,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733092649] [2021-03-26 17:46:18,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:18,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 17:46:18,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893323893] [2021-03-26 17:46:18,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 17:46:18,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:18,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 17:46:18,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 17:46:18,954 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 49 [2021-03-26 17:46:18,955 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 25 transitions, 87 flow. Second operand has 7 states, 7 states have (on average 35.857142857142854) internal successors, (251), 7 states have internal predecessors, (251), 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) [2021-03-26 17:46:18,955 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:18,955 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 49 [2021-03-26 17:46:18,959 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:19,046 INFO L129 PetriNetUnfolder]: 1/38 cut-off events. [2021-03-26 17:46:19,046 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2021-03-26 17:46:19,046 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 38 events. 1/38 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 86 event pairs, 0 based on Foata normal form. 1/39 useless extension candidates. Maximal degree in co-relation 72. Up to 7 conditions per place. [2021-03-26 17:46:19,047 INFO L132 encePairwiseOnDemand]: 41/49 looper letters, 4 selfloop transitions, 5 changer transitions 5/28 dead transitions. [2021-03-26 17:46:19,047 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 28 transitions, 130 flow [2021-03-26 17:46:19,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 17:46:19,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 17:46:19,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 330 transitions. [2021-03-26 17:46:19,049 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7482993197278912 [2021-03-26 17:46:19,049 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 330 transitions. [2021-03-26 17:46:19,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 330 transitions. [2021-03-26 17:46:19,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:19,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 330 transitions. [2021-03-26 17:46:19,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 36.666666666666664) internal successors, (330), 9 states have internal predecessors, (330), 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) [2021-03-26 17:46:19,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 49.0) internal successors, (490), 10 states have internal predecessors, (490), 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) [2021-03-26 17:46:19,053 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 49.0) internal successors, (490), 10 states have internal predecessors, (490), 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) [2021-03-26 17:46:19,053 INFO L185 Difference]: Start difference. First operand has 31 places, 25 transitions, 87 flow. Second operand 9 states and 330 transitions. [2021-03-26 17:46:19,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 28 transitions, 130 flow [2021-03-26 17:46:19,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 28 transitions, 126 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-26 17:46:19,055 INFO L241 Difference]: Finished difference. Result has 39 places, 22 transitions, 82 flow [2021-03-26 17:46:19,055 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=82, PETRI_PLACES=39, PETRI_TRANSITIONS=22} [2021-03-26 17:46:19,056 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 11 predicate places. [2021-03-26 17:46:19,056 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:19,057 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 22 transitions, 82 flow [2021-03-26 17:46:19,057 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 22 transitions, 82 flow [2021-03-26 17:46:19,057 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 22 transitions, 82 flow [2021-03-26 17:46:19,065 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-03-26 17:46:19,065 INFO L130 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2021-03-26 17:46:19,065 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 27 events. 0/27 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-26 17:46:19,066 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-26 17:46:19,192 INFO L154 LiptonReduction]: Checked pairs total: 145 [2021-03-26 17:46:19,192 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-26 17:46:19,192 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 136 [2021-03-26 17:46:19,194 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 20 transitions, 78 flow [2021-03-26 17:46:19,194 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 35.857142857142854) internal successors, (251), 7 states have internal predecessors, (251), 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) [2021-03-26 17:46:19,195 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:19,195 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:19,195 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 17:46:19,195 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:19,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:19,196 INFO L82 PathProgramCache]: Analyzing trace with hash 972492051, now seen corresponding path program 1 times [2021-03-26 17:46:19,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:19,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700598716] [2021-03-26 17:46:19,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:19,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:19,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:19,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:19,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:19,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:19,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:19,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:19,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:19,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:19,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:19,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:19,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:19,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:19,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700598716] [2021-03-26 17:46:19,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:19,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 17:46:19,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331362110] [2021-03-26 17:46:19,272 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 17:46:19,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:19,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 17:46:19,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 17:46:19,274 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 55 [2021-03-26 17:46:19,275 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 20 transitions, 78 flow. Second operand has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 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) [2021-03-26 17:46:19,275 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:19,275 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 55 [2021-03-26 17:46:19,275 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:19,429 INFO L129 PetriNetUnfolder]: 22/107 cut-off events. [2021-03-26 17:46:19,429 INFO L130 PetriNetUnfolder]: For 68/68 co-relation queries the response was YES. [2021-03-26 17:46:19,429 INFO L84 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 107 events. 22/107 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 476 event pairs, 8 based on Foata normal form. 6/113 useless extension candidates. Maximal degree in co-relation 257. Up to 25 conditions per place. [2021-03-26 17:46:19,430 INFO L132 encePairwiseOnDemand]: 42/55 looper letters, 20 selfloop transitions, 16 changer transitions 6/49 dead transitions. [2021-03-26 17:46:19,430 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 49 transitions, 279 flow [2021-03-26 17:46:19,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 17:46:19,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 17:46:19,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 314 transitions. [2021-03-26 17:46:19,433 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6343434343434343 [2021-03-26 17:46:19,433 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 314 transitions. [2021-03-26 17:46:19,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 314 transitions. [2021-03-26 17:46:19,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:19,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 314 transitions. [2021-03-26 17:46:19,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 34.888888888888886) internal successors, (314), 9 states have internal predecessors, (314), 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) [2021-03-26 17:46:19,436 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 55.0) internal successors, (550), 10 states have internal predecessors, (550), 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) [2021-03-26 17:46:19,436 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 55.0) internal successors, (550), 10 states have internal predecessors, (550), 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) [2021-03-26 17:46:19,436 INFO L185 Difference]: Start difference. First operand has 34 places, 20 transitions, 78 flow. Second operand 9 states and 314 transitions. [2021-03-26 17:46:19,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 49 transitions, 279 flow [2021-03-26 17:46:19,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 49 transitions, 217 flow, removed 8 selfloop flow, removed 9 redundant places. [2021-03-26 17:46:19,441 INFO L241 Difference]: Finished difference. Result has 37 places, 34 transitions, 169 flow [2021-03-26 17:46:19,441 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=169, PETRI_PLACES=37, PETRI_TRANSITIONS=34} [2021-03-26 17:46:19,441 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 9 predicate places. [2021-03-26 17:46:19,441 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:19,442 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 34 transitions, 169 flow [2021-03-26 17:46:19,442 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 34 transitions, 169 flow [2021-03-26 17:46:19,443 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 34 transitions, 169 flow [2021-03-26 17:46:19,449 INFO L129 PetriNetUnfolder]: 3/62 cut-off events. [2021-03-26 17:46:19,449 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2021-03-26 17:46:19,449 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 62 events. 3/62 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 214 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 89. Up to 11 conditions per place. [2021-03-26 17:46:19,450 INFO L142 LiptonReduction]: Number of co-enabled transitions 66 [2021-03-26 17:46:19,635 INFO L154 LiptonReduction]: Checked pairs total: 147 [2021-03-26 17:46:19,635 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-26 17:46:19,635 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 194 [2021-03-26 17:46:19,636 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 33 transitions, 171 flow [2021-03-26 17:46:19,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 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) [2021-03-26 17:46:19,637 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:19,637 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:19,637 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 17:46:19,637 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:19,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:19,638 INFO L82 PathProgramCache]: Analyzing trace with hash -520671249, now seen corresponding path program 1 times [2021-03-26 17:46:19,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:19,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809323656] [2021-03-26 17:46:19,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:19,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:19,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:19,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:19,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:19,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:19,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:19,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:19,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809323656] [2021-03-26 17:46:19,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:19,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 17:46:19,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535860337] [2021-03-26 17:46:19,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 17:46:19,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:19,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 17:46:19,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 17:46:19,676 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 61 [2021-03-26 17:46:19,676 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 33 transitions, 171 flow. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 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) [2021-03-26 17:46:19,676 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:19,676 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 61 [2021-03-26 17:46:19,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:19,694 INFO L129 PetriNetUnfolder]: 1/45 cut-off events. [2021-03-26 17:46:19,694 INFO L130 PetriNetUnfolder]: For 22/25 co-relation queries the response was YES. [2021-03-26 17:46:19,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 45 events. 1/45 cut-off events. For 22/25 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 144 event pairs, 0 based on Foata normal form. 2/41 useless extension candidates. Maximal degree in co-relation 60. Up to 11 conditions per place. [2021-03-26 17:46:19,694 INFO L132 encePairwiseOnDemand]: 57/61 looper letters, 7 selfloop transitions, 2 changer transitions 0/30 dead transitions. [2021-03-26 17:46:19,695 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 30 transitions, 168 flow [2021-03-26 17:46:19,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 17:46:19,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 17:46:19,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 146 transitions. [2021-03-26 17:46:19,696 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7978142076502732 [2021-03-26 17:46:19,697 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 146 transitions. [2021-03-26 17:46:19,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 146 transitions. [2021-03-26 17:46:19,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:19,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 146 transitions. [2021-03-26 17:46:19,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2021-03-26 17:46:19,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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) [2021-03-26 17:46:19,698 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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) [2021-03-26 17:46:19,698 INFO L185 Difference]: Start difference. First operand has 34 places, 33 transitions, 171 flow. Second operand 3 states and 146 transitions. [2021-03-26 17:46:19,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 30 transitions, 168 flow [2021-03-26 17:46:19,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 164 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-26 17:46:19,700 INFO L241 Difference]: Finished difference. Result has 36 places, 30 transitions, 156 flow [2021-03-26 17:46:19,700 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=36, PETRI_TRANSITIONS=30} [2021-03-26 17:46:19,700 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 8 predicate places. [2021-03-26 17:46:19,700 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:19,701 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 30 transitions, 156 flow [2021-03-26 17:46:19,701 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 30 transitions, 156 flow [2021-03-26 17:46:19,701 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 30 transitions, 156 flow [2021-03-26 17:46:19,705 INFO L129 PetriNetUnfolder]: 1/45 cut-off events. [2021-03-26 17:46:19,705 INFO L130 PetriNetUnfolder]: For 17/18 co-relation queries the response was YES. [2021-03-26 17:46:19,705 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 45 events. 1/45 cut-off events. For 17/18 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 143 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 56. Up to 8 conditions per place. [2021-03-26 17:46:19,705 INFO L142 LiptonReduction]: Number of co-enabled transitions 58 [2021-03-26 17:46:19,708 INFO L154 LiptonReduction]: Checked pairs total: 72 [2021-03-26 17:46:19,708 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:19,708 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 17:46:19,712 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 30 transitions, 156 flow [2021-03-26 17:46:19,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 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) [2021-03-26 17:46:19,713 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:19,713 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:19,713 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 17:46:19,713 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:19,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:19,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1357009730, now seen corresponding path program 1 times [2021-03-26 17:46:19,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:19,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980278993] [2021-03-26 17:46:19,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:19,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:19,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:19,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:19,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:46:19,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:19,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:19,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:19,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:19,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:19,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:19,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:19,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980278993] [2021-03-26 17:46:19,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:19,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 17:46:19,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124970603] [2021-03-26 17:46:19,766 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 17:46:19,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:19,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 17:46:19,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 17:46:19,768 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 61 [2021-03-26 17:46:19,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 30 transitions, 156 flow. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 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) [2021-03-26 17:46:19,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:19,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 61 [2021-03-26 17:46:19,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:19,862 INFO L129 PetriNetUnfolder]: 17/79 cut-off events. [2021-03-26 17:46:19,862 INFO L130 PetriNetUnfolder]: For 50/53 co-relation queries the response was YES. [2021-03-26 17:46:19,863 INFO L84 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 79 events. 17/79 cut-off events. For 50/53 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 309 event pairs, 5 based on Foata normal form. 5/64 useless extension candidates. Maximal degree in co-relation 201. Up to 21 conditions per place. [2021-03-26 17:46:19,864 INFO L132 encePairwiseOnDemand]: 48/61 looper letters, 17 selfloop transitions, 12 changer transitions 9/44 dead transitions. [2021-03-26 17:46:19,864 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 44 transitions, 291 flow [2021-03-26 17:46:19,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 17:46:19,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 17:46:19,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 250 transitions. [2021-03-26 17:46:19,865 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.585480093676815 [2021-03-26 17:46:19,865 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 250 transitions. [2021-03-26 17:46:19,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 250 transitions. [2021-03-26 17:46:19,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:19,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 250 transitions. [2021-03-26 17:46:19,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 35.714285714285715) internal successors, (250), 7 states have internal predecessors, (250), 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) [2021-03-26 17:46:19,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 61.0) internal successors, (488), 8 states have internal predecessors, (488), 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) [2021-03-26 17:46:19,867 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 61.0) internal successors, (488), 8 states have internal predecessors, (488), 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) [2021-03-26 17:46:19,867 INFO L185 Difference]: Start difference. First operand has 36 places, 30 transitions, 156 flow. Second operand 7 states and 250 transitions. [2021-03-26 17:46:19,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 44 transitions, 291 flow [2021-03-26 17:46:19,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 44 transitions, 277 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-26 17:46:19,875 INFO L241 Difference]: Finished difference. Result has 43 places, 29 transitions, 185 flow [2021-03-26 17:46:19,875 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=185, PETRI_PLACES=43, PETRI_TRANSITIONS=29} [2021-03-26 17:46:19,876 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 15 predicate places. [2021-03-26 17:46:19,876 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:19,876 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 29 transitions, 185 flow [2021-03-26 17:46:19,876 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 29 transitions, 185 flow [2021-03-26 17:46:19,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 29 transitions, 185 flow [2021-03-26 17:46:19,880 INFO L129 PetriNetUnfolder]: 4/45 cut-off events. [2021-03-26 17:46:19,880 INFO L130 PetriNetUnfolder]: For 50/53 co-relation queries the response was YES. [2021-03-26 17:46:19,881 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 45 events. 4/45 cut-off events. For 50/53 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 140 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 130. Up to 10 conditions per place. [2021-03-26 17:46:19,881 INFO L142 LiptonReduction]: Number of co-enabled transitions 30 [2021-03-26 17:46:20,099 INFO L154 LiptonReduction]: Checked pairs total: 29 [2021-03-26 17:46:20,100 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 17:46:20,100 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 224 [2021-03-26 17:46:20,100 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 188 flow [2021-03-26 17:46:20,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 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) [2021-03-26 17:46:20,101 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:20,101 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:20,101 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 17:46:20,101 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:20,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:20,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1935757929, now seen corresponding path program 1 times [2021-03-26 17:46:20,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:20,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121829917] [2021-03-26 17:46:20,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:20,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:20,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:20,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:20,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:20,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121829917] [2021-03-26 17:46:20,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:20,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 17:46:20,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199636993] [2021-03-26 17:46:20,112 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 17:46:20,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:20,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 17:46:20,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 17:46:20,113 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 68 [2021-03-26 17:46:20,113 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2021-03-26 17:46:20,113 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:20,113 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 68 [2021-03-26 17:46:20,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:20,124 INFO L129 PetriNetUnfolder]: 2/33 cut-off events. [2021-03-26 17:46:20,124 INFO L130 PetriNetUnfolder]: For 56/57 co-relation queries the response was YES. [2021-03-26 17:46:20,124 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 33 events. 2/33 cut-off events. For 56/57 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 77 event pairs, 0 based on Foata normal form. 1/30 useless extension candidates. Maximal degree in co-relation 63. Up to 9 conditions per place. [2021-03-26 17:46:20,124 INFO L132 encePairwiseOnDemand]: 64/68 looper letters, 6 selfloop transitions, 2 changer transitions 1/26 dead transitions. [2021-03-26 17:46:20,125 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 26 transitions, 185 flow [2021-03-26 17:46:20,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 17:46:20,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 17:46:20,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 172 transitions. [2021-03-26 17:46:20,126 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8431372549019608 [2021-03-26 17:46:20,126 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 172 transitions. [2021-03-26 17:46:20,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 172 transitions. [2021-03-26 17:46:20,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:20,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 172 transitions. [2021-03-26 17:46:20,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2021-03-26 17:46:20,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 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) [2021-03-26 17:46:20,127 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 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) [2021-03-26 17:46:20,127 INFO L185 Difference]: Start difference. First operand has 40 places, 28 transitions, 188 flow. Second operand 3 states and 172 transitions. [2021-03-26 17:46:20,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 26 transitions, 185 flow [2021-03-26 17:46:20,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 26 transitions, 158 flow, removed 2 selfloop flow, removed 7 redundant places. [2021-03-26 17:46:20,129 INFO L241 Difference]: Finished difference. Result has 36 places, 25 transitions, 148 flow [2021-03-26 17:46:20,129 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2021-03-26 17:46:20,129 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 8 predicate places. [2021-03-26 17:46:20,129 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:20,129 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 25 transitions, 148 flow [2021-03-26 17:46:20,129 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 25 transitions, 148 flow [2021-03-26 17:46:20,130 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 25 transitions, 148 flow [2021-03-26 17:46:20,132 INFO L129 PetriNetUnfolder]: 2/31 cut-off events. [2021-03-26 17:46:20,132 INFO L130 PetriNetUnfolder]: For 26/27 co-relation queries the response was YES. [2021-03-26 17:46:20,132 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 31 events. 2/31 cut-off events. For 26/27 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 62 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 44. Up to 6 conditions per place. [2021-03-26 17:46:20,132 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-26 17:46:20,133 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:20,133 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:20,134 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-03-26 17:46:20,134 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 25 transitions, 148 flow [2021-03-26 17:46:20,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2021-03-26 17:46:20,134 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:20,134 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:20,134 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 17:46:20,134 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:20,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:20,135 INFO L82 PathProgramCache]: Analyzing trace with hash -328243396, now seen corresponding path program 1 times [2021-03-26 17:46:20,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:20,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192557690] [2021-03-26 17:46:20,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:20,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:20,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:20,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:20,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:20,177 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-26 17:46:20,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:20,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:20,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:20,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192557690] [2021-03-26 17:46:20,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:20,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 17:46:20,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184323619] [2021-03-26 17:46:20,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 17:46:20,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:20,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 17:46:20,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 17:46:20,191 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 68 [2021-03-26 17:46:20,191 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 148 flow. Second operand has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 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) [2021-03-26 17:46:20,191 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:20,191 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 68 [2021-03-26 17:46:20,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:20,281 INFO L129 PetriNetUnfolder]: 4/37 cut-off events. [2021-03-26 17:46:20,281 INFO L130 PetriNetUnfolder]: For 41/41 co-relation queries the response was YES. [2021-03-26 17:46:20,282 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 37 events. 4/37 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 81 event pairs, 0 based on Foata normal form. 3/36 useless extension candidates. Maximal degree in co-relation 75. Up to 15 conditions per place. [2021-03-26 17:46:20,282 INFO L132 encePairwiseOnDemand]: 54/68 looper letters, 8 selfloop transitions, 11 changer transitions 3/27 dead transitions. [2021-03-26 17:46:20,282 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 27 transitions, 199 flow [2021-03-26 17:46:20,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 17:46:20,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 17:46:20,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-26 17:46:20,283 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4852941176470588 [2021-03-26 17:46:20,283 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-26 17:46:20,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-26 17:46:20,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:20,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-26 17:46:20,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 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) [2021-03-26 17:46:20,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 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) [2021-03-26 17:46:20,286 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 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) [2021-03-26 17:46:20,286 INFO L185 Difference]: Start difference. First operand has 35 places, 25 transitions, 148 flow. Second operand 8 states and 264 transitions. [2021-03-26 17:46:20,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 27 transitions, 199 flow [2021-03-26 17:46:20,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 27 transitions, 187 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 17:46:20,287 INFO L241 Difference]: Finished difference. Result has 40 places, 22 transitions, 143 flow [2021-03-26 17:46:20,287 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=143, PETRI_PLACES=40, PETRI_TRANSITIONS=22} [2021-03-26 17:46:20,288 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 12 predicate places. [2021-03-26 17:46:20,288 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:20,288 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 22 transitions, 143 flow [2021-03-26 17:46:20,288 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 22 transitions, 143 flow [2021-03-26 17:46:20,288 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 22 transitions, 143 flow [2021-03-26 17:46:20,290 INFO L129 PetriNetUnfolder]: 1/28 cut-off events. [2021-03-26 17:46:20,290 INFO L130 PetriNetUnfolder]: For 28/29 co-relation queries the response was YES. [2021-03-26 17:46:20,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 28 events. 1/28 cut-off events. For 28/29 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 50 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 33. Up to 6 conditions per place. [2021-03-26 17:46:20,291 INFO L142 LiptonReduction]: Number of co-enabled transitions 12 [2021-03-26 17:46:20,363 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 17:46:20,363 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 17:46:20,363 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 75 [2021-03-26 17:46:20,363 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 20 transitions, 135 flow [2021-03-26 17:46:20,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 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) [2021-03-26 17:46:20,364 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:20,364 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:20,364 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 17:46:20,364 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:20,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:20,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1489760620, now seen corresponding path program 1 times [2021-03-26 17:46:20,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:20,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554333763] [2021-03-26 17:46:20,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:20,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:20,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:20,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:20,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:20,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:20,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:20,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:20,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554333763] [2021-03-26 17:46:20,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:20,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 17:46:20,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674806089] [2021-03-26 17:46:20,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 17:46:20,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:20,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 17:46:20,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 17:46:20,421 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 70 [2021-03-26 17:46:20,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 20 transitions, 135 flow. Second operand has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 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) [2021-03-26 17:46:20,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:20,422 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 70 [2021-03-26 17:46:20,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:20,508 INFO L129 PetriNetUnfolder]: 2/23 cut-off events. [2021-03-26 17:46:20,509 INFO L130 PetriNetUnfolder]: For 51/53 co-relation queries the response was YES. [2021-03-26 17:46:20,509 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 23 events. 2/23 cut-off events. For 51/53 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 29 event pairs, 0 based on Foata normal form. 2/24 useless extension candidates. Maximal degree in co-relation 50. Up to 9 conditions per place. [2021-03-26 17:46:20,509 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 5 selfloop transitions, 8 changer transitions 2/20 dead transitions. [2021-03-26 17:46:20,509 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 20 transitions, 165 flow [2021-03-26 17:46:20,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 17:46:20,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 17:46:20,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 256 transitions. [2021-03-26 17:46:20,511 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45714285714285713 [2021-03-26 17:46:20,511 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 256 transitions. [2021-03-26 17:46:20,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 256 transitions. [2021-03-26 17:46:20,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:20,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 256 transitions. [2021-03-26 17:46:20,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 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) [2021-03-26 17:46:20,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 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) [2021-03-26 17:46:20,513 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 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) [2021-03-26 17:46:20,513 INFO L185 Difference]: Start difference. First operand has 38 places, 20 transitions, 135 flow. Second operand 8 states and 256 transitions. [2021-03-26 17:46:20,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 20 transitions, 165 flow [2021-03-26 17:46:20,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 20 transitions, 108 flow, removed 9 selfloop flow, removed 12 redundant places. [2021-03-26 17:46:20,514 INFO L241 Difference]: Finished difference. Result has 35 places, 18 transitions, 93 flow [2021-03-26 17:46:20,515 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=93, PETRI_PLACES=35, PETRI_TRANSITIONS=18} [2021-03-26 17:46:20,515 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 7 predicate places. [2021-03-26 17:46:20,515 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:20,515 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 18 transitions, 93 flow [2021-03-26 17:46:20,515 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 18 transitions, 93 flow [2021-03-26 17:46:20,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 18 transitions, 93 flow [2021-03-26 17:46:20,517 INFO L129 PetriNetUnfolder]: 1/19 cut-off events. [2021-03-26 17:46:20,517 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-03-26 17:46:20,517 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 19 events. 1/19 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 17 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 36. Up to 4 conditions per place. [2021-03-26 17:46:20,518 INFO L142 LiptonReduction]: Number of co-enabled transitions 8 [2021-03-26 17:46:20,519 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:20,519 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:20,519 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-03-26 17:46:20,519 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 18 transitions, 93 flow [2021-03-26 17:46:20,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 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) [2021-03-26 17:46:20,520 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:20,520 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:20,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 17:46:20,520 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:20,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:20,520 INFO L82 PathProgramCache]: Analyzing trace with hash -580483793, now seen corresponding path program 1 times [2021-03-26 17:46:20,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:20,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358972503] [2021-03-26 17:46:20,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:20,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:20,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:20,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:20,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:20,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:20,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:46:20,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:20,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:20,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358972503] [2021-03-26 17:46:20,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:20,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 17:46:20,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554138745] [2021-03-26 17:46:20,567 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 17:46:20,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:20,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 17:46:20,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 17:46:20,568 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 70 [2021-03-26 17:46:20,568 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 18 transitions, 93 flow. Second operand has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 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) [2021-03-26 17:46:20,568 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:20,568 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 70 [2021-03-26 17:46:20,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:20,650 INFO L129 PetriNetUnfolder]: 1/18 cut-off events. [2021-03-26 17:46:20,650 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2021-03-26 17:46:20,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 18 events. 1/18 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 1/19 useless extension candidates. Maximal degree in co-relation 39. Up to 6 conditions per place. [2021-03-26 17:46:20,651 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 3 selfloop transitions, 4 changer transitions 5/17 dead transitions. [2021-03-26 17:46:20,651 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 17 transitions, 107 flow [2021-03-26 17:46:20,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 17:46:20,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 17:46:20,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 253 transitions. [2021-03-26 17:46:20,652 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4517857142857143 [2021-03-26 17:46:20,652 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 253 transitions. [2021-03-26 17:46:20,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 253 transitions. [2021-03-26 17:46:20,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:20,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 253 transitions. [2021-03-26 17:46:20,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 31.625) internal successors, (253), 8 states have internal predecessors, (253), 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) [2021-03-26 17:46:20,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 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) [2021-03-26 17:46:20,654 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 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) [2021-03-26 17:46:20,654 INFO L185 Difference]: Start difference. First operand has 32 places, 18 transitions, 93 flow. Second operand 8 states and 253 transitions. [2021-03-26 17:46:20,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 17 transitions, 107 flow [2021-03-26 17:46:20,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 17 transitions, 78 flow, removed 2 selfloop flow, removed 9 redundant places. [2021-03-26 17:46:20,656 INFO L241 Difference]: Finished difference. Result has 30 places, 12 transitions, 46 flow [2021-03-26 17:46:20,656 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=46, PETRI_PLACES=30, PETRI_TRANSITIONS=12} [2021-03-26 17:46:20,656 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 2 predicate places. [2021-03-26 17:46:20,656 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:20,656 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 12 transitions, 46 flow [2021-03-26 17:46:20,657 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 12 transitions, 46 flow [2021-03-26 17:46:20,657 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 12 transitions, 46 flow [2021-03-26 17:46:20,658 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-03-26 17:46:20,658 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 17:46:20,658 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 12 events. 0/12 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 17:46:20,658 INFO L142 LiptonReduction]: Number of co-enabled transitions 2 [2021-03-26 17:46:20,697 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:20,697 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 17:46:20,697 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-03-26 17:46:20,698 INFO L480 AbstractCegarLoop]: Abstraction has has 23 places, 11 transitions, 44 flow [2021-03-26 17:46:20,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 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) [2021-03-26 17:46:20,698 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:46:20,698 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:46:20,698 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 17:46:20,699 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:46:20,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:46:20,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1682895673, now seen corresponding path program 1 times [2021-03-26 17:46:20,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:46:20,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255673033] [2021-03-26 17:46:20,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:46:20,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:46:20,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:20,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:20,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:20,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:20,736 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-03-26 17:46:20,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:46:20,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:46:20,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:46:20,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:46:20,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255673033] [2021-03-26 17:46:20,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:46:20,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 17:46:20,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581801718] [2021-03-26 17:46:20,747 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 17:46:20,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:46:20,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 17:46:20,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 17:46:20,748 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 71 [2021-03-26 17:46:20,748 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 11 transitions, 44 flow. Second operand has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 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) [2021-03-26 17:46:20,748 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:46:20,748 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 71 [2021-03-26 17:46:20,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:46:20,787 INFO L129 PetriNetUnfolder]: 0/6 cut-off events. [2021-03-26 17:46:20,788 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 17:46:20,788 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 6 events. 0/6 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/7 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 17:46:20,788 INFO L132 encePairwiseOnDemand]: 66/71 looper letters, 0 selfloop transitions, 0 changer transitions 6/6 dead transitions. [2021-03-26 17:46:20,788 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 6 transitions, 33 flow [2021-03-26 17:46:20,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 17:46:20,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 17:46:20,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 185 transitions. [2021-03-26 17:46:20,789 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43427230046948356 [2021-03-26 17:46:20,789 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 185 transitions. [2021-03-26 17:46:20,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 185 transitions. [2021-03-26 17:46:20,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:46:20,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 185 transitions. [2021-03-26 17:46:20,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 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) [2021-03-26 17:46:20,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 71.0) internal successors, (497), 7 states have internal predecessors, (497), 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) [2021-03-26 17:46:20,791 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 71.0) internal successors, (497), 7 states have internal predecessors, (497), 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) [2021-03-26 17:46:20,791 INFO L185 Difference]: Start difference. First operand has 23 places, 11 transitions, 44 flow. Second operand 6 states and 185 transitions. [2021-03-26 17:46:20,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 6 transitions, 33 flow [2021-03-26 17:46:20,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 6 transitions, 22 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-03-26 17:46:20,792 INFO L241 Difference]: Finished difference. Result has 14 places, 0 transitions, 0 flow [2021-03-26 17:46:20,792 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=14, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=14, PETRI_TRANSITIONS=0} [2021-03-26 17:46:20,792 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, -14 predicate places. [2021-03-26 17:46:20,792 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:46:20,792 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 14 places, 0 transitions, 0 flow [2021-03-26 17:46:20,792 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 14 places, 0 transitions, 0 flow [2021-03-26 17:46:20,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 17:46:20,793 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 17:46:20,793 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 17:46:20,793 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. [2021-03-26 17:46:20,793 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 17:46:20,793 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:46:20,793 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:46:20,793 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 17:46:20,794 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 17:46:20,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 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) [2021-03-26 17:46:20,794 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 17:46:20,797 INFO L202 PluginConnector]: Adding new model easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 05:46:20 BasicIcfg [2021-03-26 17:46:20,797 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 17:46:20,798 INFO L168 Benchmark]: Toolchain (without parser) took 3342.90 ms. Allocated memory was 255.9 MB in the beginning and 457.2 MB in the end (delta: 201.3 MB). Free memory was 236.4 MB in the beginning and 404.2 MB in the end (delta: -167.8 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.0 GB. [2021-03-26 17:46:20,798 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.45 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 17:46:20,798 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.79 ms. Allocated memory is still 255.9 MB. Free memory was 236.3 MB in the beginning and 234.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 17:46:20,798 INFO L168 Benchmark]: Boogie Preprocessor took 11.25 ms. Allocated memory is still 255.9 MB. Free memory was 234.9 MB in the beginning and 233.9 MB in the end (delta: 924.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 17:46:20,799 INFO L168 Benchmark]: RCFGBuilder took 229.60 ms. Allocated memory is still 255.9 MB. Free memory was 233.9 MB in the beginning and 237.5 MB in the end (delta: -3.7 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.0 GB. [2021-03-26 17:46:20,799 INFO L168 Benchmark]: TraceAbstraction took 3076.07 ms. Allocated memory was 255.9 MB in the beginning and 457.2 MB in the end (delta: 201.3 MB). Free memory was 237.1 MB in the beginning and 404.2 MB in the end (delta: -167.1 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.0 GB. [2021-03-26 17:46:20,800 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 0.45 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 21.79 ms. Allocated memory is still 255.9 MB. Free memory was 236.3 MB in the beginning and 234.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.25 ms. Allocated memory is still 255.9 MB. Free memory was 234.9 MB in the beginning and 233.9 MB in the end (delta: 924.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 229.60 ms. Allocated memory is still 255.9 MB. Free memory was 233.9 MB in the beginning and 237.5 MB in the end (delta: -3.7 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3076.07 ms. Allocated memory was 255.9 MB in the beginning and 457.2 MB in the end (delta: 201.3 MB). Free memory was 237.1 MB in the beginning and 404.2 MB in the end (delta: -167.1 MB). Peak memory consumption was 33.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 402.7ms, 38 PlacesBefore, 28 PlacesAfterwards, 31 TransitionsBefore, 21 TransitionsAfterwards, 240 CoEnabledTransitionPairs, 3 FixpointIterations, 4 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 758 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 409, positive: 333, positive conditional: 333, positive unconditional: 0, negative: 76, negative conditional: 76, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 409, positive: 333, positive conditional: 0, positive unconditional: 333, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 409, positive: 333, positive conditional: 0, positive unconditional: 333, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 230, positive: 195, positive conditional: 0, positive unconditional: 195, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 230, positive: 187, positive conditional: 0, positive unconditional: 187, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 161, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 137, negative conditional: 0, negative unconditional: 137, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 409, positive: 138, positive conditional: 0, positive unconditional: 138, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 230, unknown conditional: 0, unknown unconditional: 230] , Statistics on independence cache: Total cache size (in pairs): 230, Positive cache size: 195, Positive conditional cache size: 0, Positive unconditional cache size: 195, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 96.7ms, 34 PlacesBefore, 31 PlacesAfterwards, 26 TransitionsBefore, 25 TransitionsAfterwards, 122 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 334 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 106, positive: 64, positive conditional: 64, positive unconditional: 0, negative: 42, negative conditional: 42, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 106, positive: 64, positive conditional: 7, positive unconditional: 57, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 106, positive: 64, positive conditional: 7, positive unconditional: 57, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 2, positive unconditional: 1, 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: 3, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 106, positive: 61, positive conditional: 5, positive unconditional: 56, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 3, unknown conditional: 2, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 233, Positive cache size: 198, Positive conditional cache size: 2, Positive unconditional cache size: 196, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 135.1ms, 39 PlacesBefore, 34 PlacesAfterwards, 22 TransitionsBefore, 20 TransitionsAfterwards, 70 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 145 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 63, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 25, negative conditional: 25, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 63, positive: 38, positive conditional: 18, positive unconditional: 20, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 63, positive: 38, positive conditional: 18, positive unconditional: 20, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 4, positive unconditional: 2, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 63, positive: 32, positive conditional: 14, positive unconditional: 18, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 6, unknown conditional: 4, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 239, Positive cache size: 204, Positive conditional cache size: 6, Positive unconditional cache size: 198, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 192.6ms, 37 PlacesBefore, 34 PlacesAfterwards, 34 TransitionsBefore, 33 TransitionsAfterwards, 66 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 147 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 79, positive: 63, positive conditional: 63, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 79, positive: 63, positive conditional: 23, positive unconditional: 40, negative: 16, negative conditional: 10, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 79, positive: 63, positive conditional: 23, positive unconditional: 40, negative: 16, negative conditional: 10, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 31, positive: 27, positive conditional: 12, positive unconditional: 15, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 31, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 23, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 79, positive: 36, positive conditional: 11, positive unconditional: 25, negative: 12, negative conditional: 6, negative unconditional: 6, unknown: 31, unknown conditional: 16, unknown unconditional: 15] , Statistics on independence cache: Total cache size (in pairs): 270, Positive cache size: 231, Positive conditional cache size: 18, Positive unconditional cache size: 213, Negative cache size: 39, Negative conditional cache size: 4, Negative unconditional cache size: 35, Eliminated conditions: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.4ms, 36 PlacesBefore, 36 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 58 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 72 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 49, positive: 40, positive conditional: 40, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 49, positive: 40, positive conditional: 20, positive unconditional: 20, negative: 9, negative conditional: 7, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 49, positive: 40, positive conditional: 20, positive unconditional: 20, negative: 9, negative conditional: 7, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 5, 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: 5, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 49, positive: 35, positive conditional: 15, positive unconditional: 20, negative: 9, negative conditional: 7, negative unconditional: 2, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 275, Positive cache size: 236, Positive conditional cache size: 23, Positive unconditional cache size: 213, Negative cache size: 39, Negative conditional cache size: 4, Negative unconditional cache size: 35, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 223.4ms, 43 PlacesBefore, 40 PlacesAfterwards, 29 TransitionsBefore, 28 TransitionsAfterwards, 30 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 29 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 29, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 31, positive: 27, positive conditional: 23, positive unconditional: 4, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 31, positive: 27, positive conditional: 23, positive unconditional: 4, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 31, positive: 27, positive conditional: 23, positive unconditional: 4, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 275, Positive cache size: 236, Positive conditional cache size: 23, Positive unconditional cache size: 213, Negative cache size: 39, Negative conditional cache size: 4, Negative unconditional cache size: 35, Eliminated conditions: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.1ms, 36 PlacesBefore, 35 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 275, Positive cache size: 236, Positive conditional cache size: 23, Positive unconditional cache size: 213, Negative cache size: 39, Negative conditional cache size: 4, Negative unconditional cache size: 35, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 74.8ms, 40 PlacesBefore, 38 PlacesAfterwards, 22 TransitionsBefore, 20 TransitionsAfterwards, 12 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 276, Positive cache size: 237, Positive conditional cache size: 24, Positive unconditional cache size: 213, Negative cache size: 39, Negative conditional cache size: 4, Negative unconditional cache size: 35, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4ms, 35 PlacesBefore, 32 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 8 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 276, Positive cache size: 237, Positive conditional cache size: 24, Positive unconditional cache size: 213, Negative cache size: 39, Negative conditional cache size: 4, Negative unconditional cache size: 35, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.6ms, 30 PlacesBefore, 23 PlacesAfterwards, 12 TransitionsBefore, 11 TransitionsAfterwards, 2 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 276, Positive cache size: 237, Positive conditional cache size: 24, Positive unconditional cache size: 213, Negative cache size: 39, Negative conditional cache size: 4, Negative unconditional cache size: 35, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.8ms, 14 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 276, Positive cache size: 237, Positive conditional cache size: 24, Positive unconditional cache size: 213, Negative cache size: 39, Negative conditional cache size: 4, Negative unconditional cache size: 35, Eliminated conditions: 0 - PositiveResult [Line: 60]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3007.2ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 925.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 483.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 66 SDtfs, 123 SDslu, 38 SDs, 0 SdLazy, 356 SolverSat, 88 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 244.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 598.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=188occurred in iteration=5, InterpolantAutomatonStates: 69, 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: 16.1ms SsaConstructionTime, 83.5ms SatisfiabilityAnalysisTime, 536.6ms InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 613 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...