/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/pthread_inc.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 13:17:38,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 13:17:38,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 13:17:38,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 13:17:38,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 13:17:38,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 13:17:38,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 13:17:38,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 13:17:38,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 13:17:38,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 13:17:38,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 13:17:38,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 13:17:38,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 13:17:38,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 13:17:38,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 13:17:38,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 13:17:38,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 13:17:38,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 13:17:38,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 13:17:38,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 13:17:38,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 13:17:38,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 13:17:38,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 13:17:38,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 13:17:38,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 13:17:38,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 13:17:38,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 13:17:38,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 13:17:38,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 13:17:38,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 13:17:38,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 13:17:38,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 13:17:38,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 13:17:38,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 13:17:38,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 13:17:38,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 13:17:38,361 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 13:17:38,399 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 13:17:38,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 13:17:38,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 13:17:38,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 13:17:38,403 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 13:17:38,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 13:17:38,403 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 13:17:38,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 13:17:38,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 13:17:38,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 13:17:38,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 13:17:38,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 13:17:38,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 13:17:38,405 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 13:17:38,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 13:17:38,405 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 13:17:38,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 13:17:38,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 13:17:38,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 13:17:38,406 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 13:17:38,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 13:17:38,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 13:17:38,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 13:17:38,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 13:17:38,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 13:17:38,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 13:17:38,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 13:17:38,407 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 13:17:38,407 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 13:17:38,407 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 13:17:38,407 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 13:17:38,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 13:17:38,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 13:17:38,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 13:17:38,718 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 13:17:38,718 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 13:17:38,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/pthread_inc.bpl [2021-03-26 13:17:38,720 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/pthread_inc.bpl' [2021-03-26 13:17:38,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 13:17:38,750 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 13:17:38,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 13:17:38,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 13:17:38,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 13:17:38,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:17:38" (1/1) ... [2021-03-26 13:17:38,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:17:38" (1/1) ... [2021-03-26 13:17:38,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 13:17:38,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 13:17:38,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 13:17:38,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 13:17:38,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:17:38" (1/1) ... [2021-03-26 13:17:38,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:17:38" (1/1) ... [2021-03-26 13:17:38,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:17:38" (1/1) ... [2021-03-26 13:17:38,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:17:38" (1/1) ... [2021-03-26 13:17:38,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:17:38" (1/1) ... [2021-03-26 13:17:38,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:17:38" (1/1) ... [2021-03-26 13:17:38,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:17:38" (1/1) ... [2021-03-26 13:17:38,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 13:17:38,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 13:17:38,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 13:17:38,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 13:17:38,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:17:38" (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 13:17:38,847 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-26 13:17:38,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 13:17:38,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 13:17:38,847 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread given in one single declaration [2021-03-26 13:17:38,848 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-03-26 13:17:38,848 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-03-26 13:17:38,848 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 13:17:38,978 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 13:17:38,978 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-03-26 13:17:38,980 INFO L202 PluginConnector]: Adding new model pthread_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 01:17:38 BoogieIcfgContainer [2021-03-26 13:17:38,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 13:17:38,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 13:17:38,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 13:17:38,984 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 13:17:38,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:17:38" (1/2) ... [2021-03-26 13:17:38,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7375a6b4 and model type pthread_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 01:17:38, skipping insertion in model container [2021-03-26 13:17:38,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pthread_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 01:17:38" (2/2) ... [2021-03-26 13:17:38,986 INFO L111 eAbstractionObserver]: Analyzing ICFG pthread_inc.bpl [2021-03-26 13:17:38,990 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 13:17:38,993 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 13:17:38,993 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 13:17:39,015 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,015 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,015 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,015 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,016 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,016 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,016 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,016 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,018 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,021 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:17:39,034 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-26 13:17:39,050 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:17:39,050 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:17:39,050 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:17:39,050 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:17:39,050 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:17:39,050 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:17:39,051 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:17:39,051 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:17:39,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 14 places, 11 transitions, 27 flow [2021-03-26 13:17:39,069 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-03-26 13:17:39,070 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:39,071 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17 conditions, 12 events. 0/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 5 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 13:17:39,071 INFO L82 GeneralOperation]: Start removeDead. Operand has 14 places, 11 transitions, 27 flow [2021-03-26 13:17:39,074 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 14 places, 11 transitions, 27 flow [2021-03-26 13:17:39,075 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:39,086 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 14 places, 11 transitions, 27 flow [2021-03-26 13:17:39,089 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 14 places, 11 transitions, 27 flow [2021-03-26 13:17:39,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 14 places, 11 transitions, 27 flow [2021-03-26 13:17:39,093 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-03-26 13:17:39,093 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:39,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17 conditions, 12 events. 0/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 9 event pairs, 0 based on Foata normal form. 0/11 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 13:17:39,095 INFO L142 LiptonReduction]: Number of co-enabled transitions 28 [2021-03-26 13:17:39,281 INFO L154 LiptonReduction]: Checked pairs total: 12 [2021-03-26 13:17:39,281 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-26 13:17:39,283 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 209 [2021-03-26 13:17:39,290 INFO L129 PetriNetUnfolder]: 0/6 cut-off events. [2021-03-26 13:17:39,291 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:39,291 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:39,291 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-03-26 13:17:39,292 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-26 13:17:39,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:39,296 INFO L82 PathProgramCache]: Analyzing trace with hash 50162, now seen corresponding path program 1 times [2021-03-26 13:17:39,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:39,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867624446] [2021-03-26 13:17:39,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:39,389 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:39,397 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:39,418 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:17:39,418 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:17:39,419 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 13:17:39,419 WARN L342 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:17:39,419 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-03-26 13:17:39,433 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,433 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,433 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,434 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,434 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,434 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,435 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,435 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,439 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,439 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,440 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,441 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,442 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,442 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,443 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,444 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,445 WARN L313 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,449 WARN L313 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,452 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:17:39,452 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 13:17:39,454 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:17:39,455 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:17:39,455 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:17:39,455 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:17:39,455 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:17:39,455 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:17:39,455 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:17:39,455 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:17:39,456 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 19 transitions, 50 flow [2021-03-26 13:17:39,461 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-26 13:17:39,461 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:39,461 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 21 events. 0/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 13:17:39,461 INFO L82 GeneralOperation]: Start removeDead. Operand has 24 places, 19 transitions, 50 flow [2021-03-26 13:17:39,462 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 19 transitions, 50 flow [2021-03-26 13:17:39,462 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:39,462 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 19 transitions, 50 flow [2021-03-26 13:17:39,463 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 19 transitions, 50 flow [2021-03-26 13:17:39,463 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 19 transitions, 50 flow [2021-03-26 13:17:39,482 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-26 13:17:39,482 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:39,483 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 21 events. 0/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 39 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 13:17:39,483 INFO L142 LiptonReduction]: Number of co-enabled transitions 168 [2021-03-26 13:17:39,613 INFO L154 LiptonReduction]: Checked pairs total: 360 [2021-03-26 13:17:39,613 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 13:17:39,613 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 151 [2021-03-26 13:17:39,620 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2021-03-26 13:17:39,621 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:39,627 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:39,627 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-03-26 13:17:39,627 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:39,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:39,629 INFO L82 PathProgramCache]: Analyzing trace with hash 2331670, now seen corresponding path program 1 times [2021-03-26 13:17:39,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:39,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107460955] [2021-03-26 13:17:39,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:39,638 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:39,642 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:39,648 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:17:39,648 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:17:39,648 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 13:17:39,649 WARN L342 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:17:39,650 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-03-26 13:17:39,656 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,656 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,656 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,657 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,657 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,657 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,657 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,658 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,659 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,659 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,662 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,663 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,663 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,664 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,668 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,668 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,669 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,669 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,669 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,670 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,670 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,670 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,670 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,670 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,671 WARN L313 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,672 WARN L313 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,673 WARN L313 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,675 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:17:39,676 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-26 13:17:39,678 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:17:39,678 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:17:39,678 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:17:39,678 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:17:39,678 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:17:39,678 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:17:39,678 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:17:39,678 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:17:39,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 27 transitions, 75 flow [2021-03-26 13:17:39,692 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2021-03-26 13:17:39,692 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:39,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 30 events. 0/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 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 13:17:39,693 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 27 transitions, 75 flow [2021-03-26 13:17:39,695 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 27 transitions, 75 flow [2021-03-26 13:17:39,696 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:39,696 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 27 transitions, 75 flow [2021-03-26 13:17:39,696 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 27 transitions, 75 flow [2021-03-26 13:17:39,697 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 27 transitions, 75 flow [2021-03-26 13:17:39,706 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2021-03-26 13:17:39,706 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:39,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 30 events. 0/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 78 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 13:17:39,708 INFO L142 LiptonReduction]: Number of co-enabled transitions 420 [2021-03-26 13:17:39,843 INFO L154 LiptonReduction]: Checked pairs total: 1030 [2021-03-26 13:17:39,844 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 13:17:39,844 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 148 [2021-03-26 13:17:39,849 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-03-26 13:17:39,849 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:39,849 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:39,849 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-26 13:17:39,849 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:39,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:39,850 INFO L82 PathProgramCache]: Analyzing trace with hash 100172263, now seen corresponding path program 1 times [2021-03-26 13:17:39,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:39,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258039234] [2021-03-26 13:17:39,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:39,858 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:39,861 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:39,864 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:17:39,864 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:17:39,865 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 13:17:39,865 WARN L342 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:17:39,865 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-03-26 13:17:39,873 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,873 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,874 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,874 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,874 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,875 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,875 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,875 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,876 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,876 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,876 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,876 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,877 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,877 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,877 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,877 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,877 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,878 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,878 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,878 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,878 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,878 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,878 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,878 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,879 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,879 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,879 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,879 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,879 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,879 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,879 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,880 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,882 WARN L313 ript$VariableManager]: TermVariabe threadThread1of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,883 WARN L313 ript$VariableManager]: TermVariabe threadThread2of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,884 WARN L313 ript$VariableManager]: TermVariabe threadThread3of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,885 WARN L313 ript$VariableManager]: TermVariabe threadThread4of4ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:39,886 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:17:39,886 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-26 13:17:39,887 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:17:39,887 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:17:39,887 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:17:39,887 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:17:39,887 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:17:39,888 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:17:39,888 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:17:39,888 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:17:39,892 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 35 transitions, 102 flow [2021-03-26 13:17:39,904 INFO L129 PetriNetUnfolder]: 0/39 cut-off events. [2021-03-26 13:17:39,904 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:39,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 39 events. 0/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 105 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-26 13:17:39,904 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 35 transitions, 102 flow [2021-03-26 13:17:39,905 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 44 places, 35 transitions, 102 flow [2021-03-26 13:17:39,905 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:39,905 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 35 transitions, 102 flow [2021-03-26 13:17:39,905 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 35 transitions, 102 flow [2021-03-26 13:17:39,906 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 35 transitions, 102 flow [2021-03-26 13:17:39,915 INFO L129 PetriNetUnfolder]: 0/39 cut-off events. [2021-03-26 13:17:39,915 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:39,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 39 events. 0/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 105 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-03-26 13:17:39,917 INFO L142 LiptonReduction]: Number of co-enabled transitions 784 [2021-03-26 13:17:40,101 INFO L154 LiptonReduction]: Checked pairs total: 1938 [2021-03-26 13:17:40,101 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 13:17:40,101 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 196 [2021-03-26 13:17:40,110 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-26 13:17:40,110 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:40,110 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:40,111 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-03-26 13:17:40,111 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:40,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:40,111 INFO L82 PathProgramCache]: Analyzing trace with hash -58775453, now seen corresponding path program 1 times [2021-03-26 13:17:40,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:40,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136436798] [2021-03-26 13:17:40,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:40,115 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:40,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:40,117 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:40,119 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:17:40,119 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:17:40,119 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 13:17:40,119 WARN L342 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:17:40,122 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2021-03-26 13:17:40,128 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,128 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,128 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,128 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,129 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,129 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,129 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,129 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,129 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,130 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,130 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,130 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,130 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,130 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,131 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,131 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,131 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,131 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,131 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,131 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,131 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,132 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,132 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,132 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,132 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,133 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,133 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,133 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,133 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,133 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,133 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,133 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,134 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,134 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,134 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,134 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,134 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,134 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,134 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,134 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,135 WARN L313 ript$VariableManager]: TermVariabe threadThread1of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,136 WARN L313 ript$VariableManager]: TermVariabe threadThread2of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,136 WARN L313 ript$VariableManager]: TermVariabe threadThread3of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,137 WARN L313 ript$VariableManager]: TermVariabe threadThread4of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,138 WARN L313 ript$VariableManager]: TermVariabe threadThread5of5ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:40,138 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:17:40,138 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-26 13:17:40,153 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:17:40,153 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:17:40,153 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:17:40,153 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:17:40,154 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:17:40,154 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:17:40,154 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:17:40,154 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:17:40,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 43 transitions, 131 flow [2021-03-26 13:17:40,165 INFO L129 PetriNetUnfolder]: 0/48 cut-off events. [2021-03-26 13:17:40,166 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:40,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 48 events. 0/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 151 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-03-26 13:17:40,167 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 43 transitions, 131 flow [2021-03-26 13:17:40,167 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 43 transitions, 131 flow [2021-03-26 13:17:40,167 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:40,167 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 43 transitions, 131 flow [2021-03-26 13:17:40,168 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 43 transitions, 131 flow [2021-03-26 13:17:40,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 43 transitions, 131 flow [2021-03-26 13:17:40,176 INFO L129 PetriNetUnfolder]: 0/48 cut-off events. [2021-03-26 13:17:40,176 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:40,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 48 events. 0/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 174 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-03-26 13:17:40,177 INFO L142 LiptonReduction]: Number of co-enabled transitions 1260 [2021-03-26 13:17:40,336 INFO L154 LiptonReduction]: Checked pairs total: 3194 [2021-03-26 13:17:40,336 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 13:17:40,337 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 170 [2021-03-26 13:17:40,344 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-26 13:17:40,345 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:40,345 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:40,345 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:17:40,345 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:40,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:40,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1496841348, now seen corresponding path program 1 times [2021-03-26 13:17:40,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:40,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788165117] [2021-03-26 13:17:40,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:17:40,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:17:40,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 13:17:40,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:17:40,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 13:17:40,400 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 13:17:40,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788165117] [2021-03-26 13:17:40,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:17:40,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 13:17:40,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190771022] [2021-03-26 13:17:40,407 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:17:40,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:17:40,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:17:40,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:17:40,418 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 48 [2021-03-26 13:17:40,419 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 121 flow. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:40,419 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:17:40,420 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 48 [2021-03-26 13:17:40,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:17:42,335 INFO L129 PetriNetUnfolder]: 12575/18290 cut-off events. [2021-03-26 13:17:42,336 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 13:17:42,405 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35224 conditions, 18290 events. 12575/18290 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 1068. Compared 129523 event pairs, 7859 based on Foata normal form. 0/14055 useless extension candidates. Maximal degree in co-relation 35179. Up to 12044 conditions per place. [2021-03-26 13:17:42,534 INFO L132 encePairwiseOnDemand]: 41/48 looper letters, 32 selfloop transitions, 6 changer transitions 0/55 dead transitions. [2021-03-26 13:17:42,534 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 55 transitions, 231 flow [2021-03-26 13:17:42,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:17:42,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:17:42,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2021-03-26 13:17:42,543 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2021-03-26 13:17:42,544 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 105 transitions. [2021-03-26 13:17:42,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 105 transitions. [2021-03-26 13:17:42,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:17:42,547 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 105 transitions. [2021-03-26 13:17:42,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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 13:17:42,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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 13:17:42,551 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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 13:17:42,553 INFO L185 Difference]: Start difference. First operand has 49 places, 38 transitions, 121 flow. Second operand 3 states and 105 transitions. [2021-03-26 13:17:42,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 55 transitions, 231 flow [2021-03-26 13:17:42,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 55 transitions, 211 flow, removed 10 selfloop flow, removed 0 redundant places. [2021-03-26 13:17:42,558 INFO L241 Difference]: Finished difference. Result has 53 places, 43 transitions, 147 flow [2021-03-26 13:17:42,560 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=53, PETRI_TRANSITIONS=43} [2021-03-26 13:17:42,560 INFO L343 CegarLoopForPetriNet]: 49 programPoint places, 4 predicate places. [2021-03-26 13:17:42,560 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:42,561 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 43 transitions, 147 flow [2021-03-26 13:17:42,561 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 43 transitions, 147 flow [2021-03-26 13:17:42,561 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 43 transitions, 147 flow [2021-03-26 13:17:42,640 INFO L129 PetriNetUnfolder]: 150/428 cut-off events. [2021-03-26 13:17:42,640 INFO L130 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2021-03-26 13:17:42,642 INFO L84 FinitePrefix]: Finished finitePrefix Result has 788 conditions, 428 events. 150/428 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2625 event pairs, 68 based on Foata normal form. 0/373 useless extension candidates. Maximal degree in co-relation 770. Up to 196 conditions per place. [2021-03-26 13:17:42,647 INFO L142 LiptonReduction]: Number of co-enabled transitions 1128 [2021-03-26 13:17:42,773 INFO L154 LiptonReduction]: Checked pairs total: 978 [2021-03-26 13:17:42,773 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:17:42,773 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 213 [2021-03-26 13:17:42,774 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 43 transitions, 147 flow [2021-03-26 13:17:42,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 13:17:42,775 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:42,775 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:17:42,775 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 13:17:42,775 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:42,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:42,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1461532069, now seen corresponding path program 1 times [2021-03-26 13:17:42,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:42,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462263086] [2021-03-26 13:17:42,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:42,788 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:42,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:42,792 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:42,796 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:17:42,796 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:17:42,796 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 13:17:42,796 WARN L342 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:17:42,796 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2021-03-26 13:17:42,802 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,803 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,803 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,803 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,803 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,803 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,803 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,803 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,804 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,804 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,804 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,804 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,804 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,804 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,804 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,804 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,804 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,805 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,805 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,805 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,805 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,805 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,805 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,805 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,806 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,809 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,809 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,809 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,810 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,810 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,810 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,810 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,810 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,810 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,810 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,810 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,811 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,811 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,811 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,811 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,811 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,811 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,812 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,812 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,812 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,812 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,812 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,812 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,812 WARN L313 ript$VariableManager]: TermVariabe threadThread1of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,813 WARN L313 ript$VariableManager]: TermVariabe threadThread2of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,814 WARN L313 ript$VariableManager]: TermVariabe threadThread3of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,814 WARN L313 ript$VariableManager]: TermVariabe threadThread4of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,815 WARN L313 ript$VariableManager]: TermVariabe threadThread5of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,816 WARN L313 ript$VariableManager]: TermVariabe threadThread6of6ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:42,816 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:17:42,816 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-03-26 13:17:42,817 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:17:42,817 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:17:42,817 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:17:42,817 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:17:42,817 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:17:42,817 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:17:42,817 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:17:42,818 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:17:42,818 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 51 transitions, 162 flow [2021-03-26 13:17:42,823 INFO L129 PetriNetUnfolder]: 0/57 cut-off events. [2021-03-26 13:17:42,823 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:42,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 57 events. 0/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 204 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-03-26 13:17:42,824 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 51 transitions, 162 flow [2021-03-26 13:17:42,824 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 51 transitions, 162 flow [2021-03-26 13:17:42,824 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:42,825 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 51 transitions, 162 flow [2021-03-26 13:17:42,825 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 51 transitions, 162 flow [2021-03-26 13:17:42,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 51 transitions, 162 flow [2021-03-26 13:17:42,829 INFO L129 PetriNetUnfolder]: 0/57 cut-off events. [2021-03-26 13:17:42,829 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:42,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 57 events. 0/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 213 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-03-26 13:17:42,831 INFO L142 LiptonReduction]: Number of co-enabled transitions 1848 [2021-03-26 13:17:43,012 INFO L154 LiptonReduction]: Checked pairs total: 4594 [2021-03-26 13:17:43,012 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-26 13:17:43,013 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 189 [2021-03-26 13:17:43,019 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-26 13:17:43,019 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:43,019 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:43,020 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:17:43,020 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:43,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:43,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1445764496, now seen corresponding path program 1 times [2021-03-26 13:17:43,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:43,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086358917] [2021-03-26 13:17:43,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:17:43,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:17:43,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 13:17:43,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:17:43,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 13:17:43,053 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 13:17:43,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086358917] [2021-03-26 13:17:43,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:17:43,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 13:17:43,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606640995] [2021-03-26 13:17:43,054 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:17:43,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:17:43,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:17:43,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:17:43,056 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 57 [2021-03-26 13:17:43,057 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 45 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 13:17:43,057 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:17:43,057 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 57 [2021-03-26 13:17:43,057 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:17:55,758 INFO L129 PetriNetUnfolder]: 80803/109551 cut-off events. [2021-03-26 13:17:55,758 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 13:17:56,469 INFO L84 FinitePrefix]: Finished finitePrefix Result has 212174 conditions, 109551 events. 80803/109551 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4866. Compared 803985 event pairs, 51919 based on Foata normal form. 0/83863 useless extension candidates. Maximal degree in co-relation 212118. Up to 74490 conditions per place. [2021-03-26 13:17:57,174 INFO L132 encePairwiseOnDemand]: 49/57 looper letters, 39 selfloop transitions, 7 changer transitions 0/66 dead transitions. [2021-03-26 13:17:57,175 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 66 transitions, 284 flow [2021-03-26 13:17:57,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:17:57,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:17:57,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2021-03-26 13:17:57,179 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7309941520467836 [2021-03-26 13:17:57,179 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 125 transitions. [2021-03-26 13:17:57,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 125 transitions. [2021-03-26 13:17:57,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:17:57,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 125 transitions. [2021-03-26 13:17:57,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 13:17:57,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 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 13:17:57,251 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 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 13:17:57,251 INFO L185 Difference]: Start difference. First operand has 58 places, 45 transitions, 150 flow. Second operand 3 states and 125 transitions. [2021-03-26 13:17:57,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 66 transitions, 284 flow [2021-03-26 13:17:57,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 66 transitions, 254 flow, removed 15 selfloop flow, removed 0 redundant places. [2021-03-26 13:17:57,254 INFO L241 Difference]: Finished difference. Result has 62 places, 51 transitions, 174 flow [2021-03-26 13:17:57,254 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2021-03-26 13:17:57,254 INFO L343 CegarLoopForPetriNet]: 58 programPoint places, 4 predicate places. [2021-03-26 13:17:57,254 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:57,254 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 51 transitions, 174 flow [2021-03-26 13:17:57,254 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 51 transitions, 174 flow [2021-03-26 13:17:57,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 51 transitions, 174 flow [2021-03-26 13:17:57,313 INFO L129 PetriNetUnfolder]: 403/929 cut-off events. [2021-03-26 13:17:57,314 INFO L130 PetriNetUnfolder]: For 59/62 co-relation queries the response was YES. [2021-03-26 13:17:57,332 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1770 conditions, 929 events. 403/929 cut-off events. For 59/62 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 6260 event pairs, 196 based on Foata normal form. 0/825 useless extension candidates. Maximal degree in co-relation 1751. Up to 497 conditions per place. [2021-03-26 13:17:57,357 INFO L142 LiptonReduction]: Number of co-enabled transitions 1664 [2021-03-26 13:17:57,812 INFO L154 LiptonReduction]: Checked pairs total: 1365 [2021-03-26 13:17:57,813 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:17:57,813 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 559 [2021-03-26 13:17:57,814 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 174 flow [2021-03-26 13:17:57,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 13:17:57,814 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:57,814 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:17:57,815 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 13:17:57,815 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:57,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:57,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1602775056, now seen corresponding path program 1 times [2021-03-26 13:17:57,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:57,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808927009] [2021-03-26 13:17:57,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:57,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:57,821 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:17:57,827 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:17:57,830 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:17:57,830 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:17:57,830 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 13:17:57,830 WARN L342 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:17:57,831 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2021-03-26 13:17:57,838 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,838 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,838 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,838 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,838 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,839 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,839 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,839 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,839 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,839 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,839 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,839 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,839 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,840 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,840 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,840 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,840 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,840 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,840 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,840 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,840 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,841 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,841 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,841 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,841 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,841 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,841 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,841 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,842 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,842 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,842 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,842 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,842 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,842 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,842 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,843 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,843 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,843 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,843 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,843 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,843 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,843 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,843 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,843 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,843 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,843 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,844 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,844 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,844 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,844 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,844 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,844 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,845 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,845 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,845 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,845 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,845 WARN L313 ript$VariableManager]: TermVariabe threadThread1of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,846 WARN L313 ript$VariableManager]: TermVariabe threadThread2of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,846 WARN L313 ript$VariableManager]: TermVariabe threadThread3of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,847 WARN L313 ript$VariableManager]: TermVariabe threadThread4of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,848 WARN L313 ript$VariableManager]: TermVariabe threadThread5of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,848 WARN L313 ript$VariableManager]: TermVariabe threadThread6of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,849 WARN L313 ript$VariableManager]: TermVariabe threadThread7of7ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:17:57,849 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:17:57,850 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-03-26 13:17:57,851 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:17:57,851 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:17:57,852 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:17:57,852 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:17:57,852 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:17:57,852 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:17:57,852 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:17:57,852 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:17:57,856 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 59 transitions, 195 flow [2021-03-26 13:17:57,861 INFO L129 PetriNetUnfolder]: 0/66 cut-off events. [2021-03-26 13:17:57,861 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:57,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 66 events. 0/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 238 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-03-26 13:17:57,861 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 59 transitions, 195 flow [2021-03-26 13:17:57,862 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 59 transitions, 195 flow [2021-03-26 13:17:57,862 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:17:57,862 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 59 transitions, 195 flow [2021-03-26 13:17:57,863 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 59 transitions, 195 flow [2021-03-26 13:17:57,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 59 transitions, 195 flow [2021-03-26 13:17:57,866 INFO L129 PetriNetUnfolder]: 0/66 cut-off events. [2021-03-26 13:17:57,867 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:57,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 66 events. 0/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 264 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-03-26 13:17:57,868 INFO L142 LiptonReduction]: Number of co-enabled transitions 2548 [2021-03-26 13:17:58,213 INFO L154 LiptonReduction]: Checked pairs total: 6252 [2021-03-26 13:17:58,213 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 13:17:58,214 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 352 [2021-03-26 13:17:58,218 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-03-26 13:17:58,218 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:17:58,218 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:17:58,218 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:17:58,218 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:17:58,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:17:58,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1790959218, now seen corresponding path program 1 times [2021-03-26 13:17:58,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:17:58,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932820581] [2021-03-26 13:17:58,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:17:58,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:17:58,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:17:58,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 13:17:58,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:17:58,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 13:17:58,241 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 13:17:58,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932820581] [2021-03-26 13:17:58,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:17:58,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 13:17:58,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221176170] [2021-03-26 13:17:58,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:17:58,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:17:58,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:17:58,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:17:58,242 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 66 [2021-03-26 13:17:58,243 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 52 transitions, 181 flow. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 13:17:58,243 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:17:58,243 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 66 [2021-03-26 13:17:58,243 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:20:57,694 INFO L129 PetriNetUnfolder]: 492663/629000 cut-off events. [2021-03-26 13:20:57,695 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 13:21:01,613 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1230897 conditions, 629000 events. 492663/629000 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21173. Compared 4518615 event pairs, 287331 based on Foata normal form. 0/480400 useless extension candidates. Maximal degree in co-relation 1230829. Up to 442536 conditions per place. [2021-03-26 13:21:04,782 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 46 selfloop transitions, 8 changer transitions 0/77 dead transitions. [2021-03-26 13:21:04,783 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 77 transitions, 339 flow [2021-03-26 13:21:04,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:21:04,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:21:04,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 145 transitions. [2021-03-26 13:21:04,784 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7323232323232324 [2021-03-26 13:21:04,784 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 145 transitions. [2021-03-26 13:21:04,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 145 transitions. [2021-03-26 13:21:04,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:21:04,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 145 transitions. [2021-03-26 13:21:04,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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 13:21:04,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 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 13:21:04,786 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 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 13:21:04,787 INFO L185 Difference]: Start difference. First operand has 67 places, 52 transitions, 181 flow. Second operand 3 states and 145 transitions. [2021-03-26 13:21:04,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 77 transitions, 339 flow [2021-03-26 13:21:04,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 77 transitions, 297 flow, removed 21 selfloop flow, removed 0 redundant places. [2021-03-26 13:21:04,789 INFO L241 Difference]: Finished difference. Result has 71 places, 59 transitions, 201 flow [2021-03-26 13:21:04,789 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=71, PETRI_TRANSITIONS=59} [2021-03-26 13:21:04,790 INFO L343 CegarLoopForPetriNet]: 67 programPoint places, 4 predicate places. [2021-03-26 13:21:04,790 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:21:04,790 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 59 transitions, 201 flow [2021-03-26 13:21:04,790 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 59 transitions, 201 flow [2021-03-26 13:21:04,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 59 transitions, 201 flow [2021-03-26 13:21:04,870 INFO L129 PetriNetUnfolder]: 1008/2050 cut-off events. [2021-03-26 13:21:04,870 INFO L130 PetriNetUnfolder]: For 271/279 co-relation queries the response was YES. [2021-03-26 13:21:04,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3980 conditions, 2050 events. 1008/2050 cut-off events. For 271/279 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 14957 event pairs, 516 based on Foata normal form. 0/1840 useless extension candidates. Maximal degree in co-relation 3960. Up to 1198 conditions per place. [2021-03-26 13:21:04,904 INFO L142 LiptonReduction]: Number of co-enabled transitions 2304 [2021-03-26 13:21:05,900 INFO L154 LiptonReduction]: Checked pairs total: 2004 [2021-03-26 13:21:05,900 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:21:05,900 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1110 [2021-03-26 13:21:05,901 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 59 transitions, 201 flow [2021-03-26 13:21:05,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 13:21:05,901 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:21:05,901 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:21:05,901 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 13:21:05,902 INFO L428 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:21:05,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:21:05,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1606968404, now seen corresponding path program 1 times [2021-03-26 13:21:05,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:21:05,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515515544] [2021-03-26 13:21:05,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:21:05,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:21:05,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:21:05,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 13:21:05,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:21:05,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 13:21:05,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-26 13:21:05,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515515544] [2021-03-26 13:21:05,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:21:05,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 13:21:05,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407430450] [2021-03-26 13:21:05,914 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:21:05,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:21:05,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:21:05,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:21:05,915 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 66 [2021-03-26 13:21:05,915 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 59 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 13:21:05,915 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:21:05,915 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 66 [2021-03-26 13:21:05,915 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 13:26:39,949 INFO L129 PetriNetUnfolder]: 658792/850429 cut-off events. [2021-03-26 13:26:39,950 INFO L130 PetriNetUnfolder]: For 267170/267170 co-relation queries the response was YES. [2021-03-26 13:26:44,624 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2003039 conditions, 850429 events. 658792/850429 cut-off events. For 267170/267170 co-relation queries the response was YES. Maximal size of possible extension queue 29955. Compared 6540260 event pairs, 385385 based on Foata normal form. 0/673135 useless extension candidates. Maximal degree in co-relation 1722441. Up to 602130 conditions per place. [2021-03-26 13:26:49,631 INFO L132 encePairwiseOnDemand]: 57/66 looper letters, 53 selfloop transitions, 14 changer transitions 0/90 dead transitions. [2021-03-26 13:26:49,631 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 90 transitions, 439 flow [2021-03-26 13:26:49,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:26:49,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 13:26:49,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 145 transitions. [2021-03-26 13:26:49,632 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7323232323232324 [2021-03-26 13:26:49,633 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 145 transitions. [2021-03-26 13:26:49,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 145 transitions. [2021-03-26 13:26:49,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 13:26:49,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 145 transitions. [2021-03-26 13:26:49,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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 13:26:49,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 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 13:26:49,634 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 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 13:26:49,634 INFO L185 Difference]: Start difference. First operand has 71 places, 59 transitions, 201 flow. Second operand 3 states and 145 transitions. [2021-03-26 13:26:49,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 90 transitions, 439 flow [2021-03-26 13:29:56,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 90 transitions, 409 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 13:29:56,900 INFO L241 Difference]: Finished difference. Result has 73 places, 71 transitions, 313 flow [2021-03-26 13:29:56,900 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=313, PETRI_PLACES=73, PETRI_TRANSITIONS=71} [2021-03-26 13:29:56,900 INFO L343 CegarLoopForPetriNet]: 67 programPoint places, 6 predicate places. [2021-03-26 13:29:56,900 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:29:56,900 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 71 transitions, 313 flow [2021-03-26 13:29:56,900 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 71 transitions, 313 flow [2021-03-26 13:29:56,901 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 71 transitions, 313 flow [2021-03-26 13:29:57,123 INFO L129 PetriNetUnfolder]: 2863/5004 cut-off events. [2021-03-26 13:29:57,123 INFO L130 PetriNetUnfolder]: For 2733/2995 co-relation queries the response was YES. [2021-03-26 13:29:57,140 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13350 conditions, 5004 events. 2863/5004 cut-off events. For 2733/2995 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 36942 event pairs, 887 based on Foata normal form. 4/4346 useless extension candidates. Maximal degree in co-relation 13329. Up to 3111 conditions per place. [2021-03-26 13:29:57,207 INFO L142 LiptonReduction]: Number of co-enabled transitions 2940 [2021-03-26 13:30:09,130 INFO L154 LiptonReduction]: Checked pairs total: 2676 [2021-03-26 13:30:09,130 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:30:09,130 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12230 [2021-03-26 13:30:09,130 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 71 transitions, 313 flow [2021-03-26 13:30:09,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 13:30:09,131 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:30:09,131 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:30:09,131 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 13:30:09,131 INFO L428 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:30:09,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:30:09,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1427752141, now seen corresponding path program 1 times [2021-03-26 13:30:09,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:30:09,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389020724] [2021-03-26 13:30:09,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:30:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:30:09,135 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:30:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 13:30:09,137 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 13:30:09,138 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 13:30:09,138 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 13:30:09,139 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 13:30:09,139 WARN L342 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2021-03-26 13:30:09,139 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2021-03-26 13:30:09,144 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,144 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,144 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,144 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,145 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,145 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,145 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,145 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,145 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,145 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,145 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,145 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,145 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,145 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,145 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,145 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,145 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,146 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,146 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,146 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,146 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,146 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,146 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,146 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,146 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,146 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,146 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,146 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,146 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,146 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,146 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,147 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,147 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,147 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,147 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,147 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,147 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,147 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,147 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,147 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,147 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,147 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,147 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,148 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,148 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,148 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,148 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,148 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,148 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,148 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,148 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,148 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,148 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,148 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,148 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,148 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,149 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,149 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,149 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,149 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,149 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,149 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,149 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,149 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,149 WARN L313 ript$VariableManager]: TermVariabe threadThread1of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,150 WARN L313 ript$VariableManager]: TermVariabe threadThread2of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,150 WARN L313 ript$VariableManager]: TermVariabe threadThread3of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,151 WARN L313 ript$VariableManager]: TermVariabe threadThread4of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,151 WARN L313 ript$VariableManager]: TermVariabe threadThread5of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,152 WARN L313 ript$VariableManager]: TermVariabe threadThread6of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,152 WARN L313 ript$VariableManager]: TermVariabe threadThread7of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,153 WARN L313 ript$VariableManager]: TermVariabe threadThread8of8ForFork0_v not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:30:09,153 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 13:30:09,153 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-03-26 13:30:09,154 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:30:09,154 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:30:09,154 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:30:09,154 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:30:09,154 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:30:09,154 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:30:09,154 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:30:09,155 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:30:09,155 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 67 transitions, 230 flow [2021-03-26 13:30:09,160 INFO L129 PetriNetUnfolder]: 0/75 cut-off events. [2021-03-26 13:30:09,160 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:30:09,160 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 75 events. 0/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 297 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-03-26 13:30:09,160 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 67 transitions, 230 flow [2021-03-26 13:30:09,160 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 67 transitions, 230 flow [2021-03-26 13:30:09,160 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:30:09,161 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 67 transitions, 230 flow [2021-03-26 13:30:09,161 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 67 transitions, 230 flow [2021-03-26 13:30:09,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 67 transitions, 230 flow [2021-03-26 13:30:09,165 INFO L129 PetriNetUnfolder]: 0/75 cut-off events. [2021-03-26 13:30:09,165 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:30:09,165 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 75 events. 0/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 301 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-03-26 13:30:09,166 INFO L142 LiptonReduction]: Number of co-enabled transitions 3360 [2021-03-26 13:30:09,410 INFO L154 LiptonReduction]: Checked pairs total: 8602 [2021-03-26 13:30:09,410 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-26 13:30:09,410 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 250 [2021-03-26 13:30:09,412 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-26 13:30:09,412 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:30:09,412 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 13:30:09,413 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-03-26 13:30:09,413 INFO L428 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 13:30:09,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 13:30:09,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1856063672, now seen corresponding path program 1 times [2021-03-26 13:30:09,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 13:30:09,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43942594] [2021-03-26 13:30:09,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 13:30:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 13:30:09,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:30:09,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 13:30:09,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 13:30:09,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 13:30:09,427 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 13:30:09,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43942594] [2021-03-26 13:30:09,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 13:30:09,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 13:30:09,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342825875] [2021-03-26 13:30:09,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 13:30:09,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 13:30:09,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 13:30:09,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 13:30:09,429 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 75 [2021-03-26 13:30:09,429 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 59 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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 13:30:09,429 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 13:30:09,429 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 75 [2021-03-26 13:30:09,430 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2021-03-26 13:30:28,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 13:30:28,075 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 13:30:28,075 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-26 13:30:28,077 WARN L224 ceAbstractionStarter]: Timeout [2021-03-26 13:30:28,078 INFO L202 PluginConnector]: Adding new model pthread_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 01:30:28 BasicIcfg [2021-03-26 13:30:28,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 13:30:28,079 INFO L168 Benchmark]: Toolchain (without parser) took 769328.29 ms. Allocated memory was 255.9 MB in the beginning and 13.4 GB in the end (delta: 13.2 GB). Free memory was 236.7 MB in the beginning and 12.1 GB in the end (delta: -11.8 GB). Peak memory consumption was 7.9 GB. Max. memory is 16.0 GB. [2021-03-26 13:30:28,079 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.45 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 13:30:28,079 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.73 ms. Allocated memory is still 255.9 MB. Free memory was 236.6 MB in the beginning and 235.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 13:30:28,079 INFO L168 Benchmark]: Boogie Preprocessor took 14.82 ms. Allocated memory is still 255.9 MB. Free memory was 235.2 MB in the beginning and 234.2 MB in the end (delta: 902.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 13:30:28,079 INFO L168 Benchmark]: RCFGBuilder took 187.86 ms. Allocated memory is still 255.9 MB. Free memory was 234.2 MB in the beginning and 241.2 MB in the end (delta: -7.1 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.0 GB. [2021-03-26 13:30:28,080 INFO L168 Benchmark]: TraceAbstraction took 769096.65 ms. Allocated memory was 255.9 MB in the beginning and 13.4 GB in the end (delta: 13.2 GB). Free memory was 240.8 MB in the beginning and 12.1 GB in the end (delta: -11.8 GB). Peak memory consumption was 7.9 GB. Max. memory is 16.0 GB. [2021-03-26 13:30:28,081 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 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.73 ms. Allocated memory is still 255.9 MB. Free memory was 236.6 MB in the beginning and 235.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.82 ms. Allocated memory is still 255.9 MB. Free memory was 235.2 MB in the beginning and 234.2 MB in the end (delta: 902.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 187.86 ms. Allocated memory is still 255.9 MB. Free memory was 234.2 MB in the beginning and 241.2 MB in the end (delta: -7.1 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 769096.65 ms. Allocated memory was 255.9 MB in the beginning and 13.4 GB in the end (delta: 13.2 GB). Free memory was 240.8 MB in the beginning and 12.1 GB in the end (delta: -11.8 GB). Peak memory consumption was 7.9 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 192.5ms, 14 PlacesBefore, 10 PlacesAfterwards, 11 TransitionsBefore, 7 TransitionsAfterwards, 28 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 12 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, 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: 12, positive: 12, positive conditional: 0, positive unconditional: 12, 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: 12, positive: 12, positive conditional: 0, positive unconditional: 12, 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: 10, positive: 10, positive conditional: 0, positive unconditional: 10, 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: 10, positive: 10, positive conditional: 0, positive unconditional: 10, 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: 12, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , Statistics on independence cache: Total cache size (in pairs): 10, Positive cache size: 10, Positive conditional cache size: 0, Positive unconditional cache size: 10, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 150.7ms, 24 PlacesBefore, 22 PlacesAfterwards, 19 TransitionsBefore, 17 TransitionsAfterwards, 168 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 360 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 225, positive: 187, positive conditional: 187, positive unconditional: 0, negative: 38, negative conditional: 38, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 225, positive: 187, positive conditional: 0, positive unconditional: 187, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 225, positive: 187, positive conditional: 0, positive unconditional: 187, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 126, positive: 109, positive conditional: 0, positive unconditional: 109, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 126, positive: 106, positive conditional: 0, positive unconditional: 106, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 20, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 97, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 225, positive: 78, positive conditional: 0, positive unconditional: 78, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 126, unknown conditional: 0, unknown unconditional: 126] , Statistics on independence cache: Total cache size (in pairs): 126, Positive cache size: 109, Positive conditional cache size: 0, Positive unconditional cache size: 109, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 147.5ms, 34 PlacesBefore, 31 PlacesAfterwards, 27 TransitionsBefore, 24 TransitionsAfterwards, 420 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 1030 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 416, positive: 355, positive conditional: 355, positive unconditional: 0, negative: 61, negative conditional: 61, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 416, positive: 355, positive conditional: 0, positive unconditional: 355, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 416, positive: 355, positive conditional: 0, positive unconditional: 355, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 249, positive: 222, positive conditional: 0, positive unconditional: 222, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 249, positive: 216, positive conditional: 0, positive unconditional: 216, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 33, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 94, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 85, negative conditional: 0, negative unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 416, positive: 133, positive conditional: 0, positive unconditional: 133, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 249, unknown conditional: 0, unknown unconditional: 249] , Statistics on independence cache: Total cache size (in pairs): 249, Positive cache size: 222, Positive conditional cache size: 0, Positive unconditional cache size: 222, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 195.8ms, 44 PlacesBefore, 40 PlacesAfterwards, 35 TransitionsBefore, 31 TransitionsAfterwards, 784 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 1938 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 421, positive: 341, positive conditional: 341, positive unconditional: 0, negative: 80, negative conditional: 80, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 421, positive: 341, positive conditional: 0, positive unconditional: 341, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 421, positive: 341, positive conditional: 0, positive unconditional: 341, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 329, positive: 283, positive conditional: 0, positive unconditional: 283, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 329, positive: 274, positive conditional: 0, positive unconditional: 274, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 55, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 136, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 123, negative conditional: 0, negative unconditional: 123, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 421, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 329, unknown conditional: 0, unknown unconditional: 329] , Statistics on independence cache: Total cache size (in pairs): 329, Positive cache size: 283, Positive conditional cache size: 0, Positive unconditional cache size: 283, Negative cache size: 46, Negative conditional cache size: 0, Negative unconditional cache size: 46, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 168.7ms, 54 PlacesBefore, 49 PlacesAfterwards, 43 TransitionsBefore, 38 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 3194 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 580, positive: 479, positive conditional: 479, positive unconditional: 0, negative: 101, negative conditional: 101, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 580, positive: 479, positive conditional: 0, positive unconditional: 479, negative: 101, negative conditional: 0, negative unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 580, positive: 479, positive conditional: 0, positive unconditional: 479, negative: 101, negative conditional: 0, negative unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 405, positive: 353, positive conditional: 0, positive unconditional: 353, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 405, positive: 346, positive conditional: 0, positive unconditional: 346, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 59, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 113, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 105, negative conditional: 0, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 580, positive: 126, positive conditional: 0, positive unconditional: 126, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 405, unknown conditional: 0, unknown unconditional: 405] , Statistics on independence cache: Total cache size (in pairs): 405, Positive cache size: 353, Positive conditional cache size: 0, Positive unconditional cache size: 353, Negative cache size: 52, Negative conditional cache size: 0, Negative unconditional cache size: 52, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 211.9ms, 53 PlacesBefore, 53 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 1128 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 978 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 103, positive: 72, positive conditional: 72, positive unconditional: 0, negative: 31, negative conditional: 31, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 103, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 103, positive: 72, positive conditional: 0, positive unconditional: 72, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 40, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 40, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 29, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 103, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 40, unknown conditional: 0, unknown unconditional: 40] , Statistics on independence cache: Total cache size (in pairs): 445, Positive cache size: 381, Positive conditional cache size: 0, Positive unconditional cache size: 381, Negative cache size: 64, Negative conditional cache size: 0, Negative unconditional cache size: 64, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 187.7ms, 64 PlacesBefore, 58 PlacesAfterwards, 51 TransitionsBefore, 45 TransitionsAfterwards, 1848 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 4594 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 732, positive: 614, positive conditional: 614, positive unconditional: 0, negative: 118, negative conditional: 118, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 732, positive: 614, positive conditional: 0, positive unconditional: 614, negative: 118, negative conditional: 0, negative unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 732, positive: 614, positive conditional: 0, positive unconditional: 614, negative: 118, negative conditional: 0, negative unconditional: 118, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 494, positive: 435, positive conditional: 0, positive unconditional: 435, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 494, positive: 420, positive conditional: 0, positive unconditional: 420, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 74, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 135, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 120, negative conditional: 0, negative unconditional: 120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 732, positive: 179, positive conditional: 0, positive unconditional: 179, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 494, unknown conditional: 0, unknown unconditional: 494] , Statistics on independence cache: Total cache size (in pairs): 494, Positive cache size: 435, Positive conditional cache size: 0, Positive unconditional cache size: 435, Negative cache size: 59, Negative conditional cache size: 0, Negative unconditional cache size: 59, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 558.3ms, 62 PlacesBefore, 62 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 1664 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1365 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 141, positive: 106, positive conditional: 106, positive unconditional: 0, negative: 35, negative conditional: 35, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 141, positive: 106, positive conditional: 0, positive unconditional: 106, negative: 35, negative conditional: 3, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 141, positive: 106, positive conditional: 0, positive unconditional: 106, negative: 35, negative conditional: 3, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 38, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 15, negative conditional: 3, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 38, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 15, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 15, negative conditional: 3, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 110, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 110, negative conditional: 29, negative unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 141, positive: 83, positive conditional: 0, positive unconditional: 83, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 38, unknown conditional: 3, unknown unconditional: 35] , Statistics on independence cache: Total cache size (in pairs): 532, Positive cache size: 458, Positive conditional cache size: 0, Positive unconditional cache size: 458, Negative cache size: 74, Negative conditional cache size: 3, Negative unconditional cache size: 71, Eliminated conditions: 12 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 350.8ms, 74 PlacesBefore, 67 PlacesAfterwards, 59 TransitionsBefore, 52 TransitionsAfterwards, 2548 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 6252 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1267, positive: 1132, positive conditional: 1132, positive unconditional: 0, negative: 135, negative conditional: 135, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1267, positive: 1132, positive conditional: 0, positive unconditional: 1132, negative: 135, negative conditional: 0, negative unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1267, positive: 1132, positive conditional: 0, positive unconditional: 1132, negative: 135, negative conditional: 0, negative unconditional: 135, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 909, positive: 835, positive conditional: 0, positive unconditional: 835, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 909, positive: 823, positive conditional: 0, positive unconditional: 823, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 86, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 262, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 248, negative conditional: 0, negative unconditional: 248, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1267, positive: 297, positive conditional: 0, positive unconditional: 297, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 909, unknown conditional: 0, unknown unconditional: 909] , Statistics on independence cache: Total cache size (in pairs): 909, Positive cache size: 835, Positive conditional cache size: 0, Positive unconditional cache size: 835, Negative cache size: 74, Negative conditional cache size: 0, Negative unconditional cache size: 74, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1110.2ms, 71 PlacesBefore, 71 PlacesAfterwards, 59 TransitionsBefore, 59 TransitionsAfterwards, 2304 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 2004 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 182, positive: 139, positive conditional: 139, positive unconditional: 0, negative: 43, negative conditional: 43, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 182, positive: 139, positive conditional: 0, positive unconditional: 139, negative: 43, negative conditional: 15, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 182, positive: 139, positive conditional: 0, positive unconditional: 139, negative: 43, negative conditional: 15, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 33, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 19, negative conditional: 15, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 33, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 19, negative conditional: 15, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 71, negative conditional: 64, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 182, positive: 125, positive conditional: 0, positive unconditional: 125, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 33, unknown conditional: 15, unknown unconditional: 18] , Statistics on independence cache: Total cache size (in pairs): 942, Positive cache size: 849, Positive conditional cache size: 0, Positive unconditional cache size: 849, Negative cache size: 93, Negative conditional cache size: 15, Negative unconditional cache size: 78, Eliminated conditions: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12229.4ms, 73 PlacesBefore, 73 PlacesAfterwards, 71 TransitionsBefore, 71 TransitionsAfterwards, 2940 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 2676 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 169, positive: 121, positive conditional: 121, positive unconditional: 0, negative: 48, negative conditional: 48, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 169, positive: 121, positive conditional: 0, positive unconditional: 121, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 169, positive: 121, positive conditional: 0, positive unconditional: 121, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 33, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 33, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 23, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 63, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 169, positive: 107, positive conditional: 0, positive unconditional: 107, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 33, unknown conditional: 0, unknown unconditional: 33] , Statistics on independence cache: Total cache size (in pairs): 975, Positive cache size: 863, Positive conditional cache size: 0, Positive unconditional cache size: 863, Negative cache size: 112, Negative conditional cache size: 15, Negative unconditional cache size: 97, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 249.3ms, 84 PlacesBefore, 76 PlacesAfterwards, 67 TransitionsBefore, 59 TransitionsAfterwards, 3360 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 8602 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1099, positive: 939, positive conditional: 939, positive unconditional: 0, negative: 160, negative conditional: 160, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1099, positive: 939, positive conditional: 0, positive unconditional: 939, negative: 160, negative conditional: 0, negative unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1099, positive: 939, positive conditional: 0, positive unconditional: 939, negative: 160, negative conditional: 0, negative unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 879, positive: 769, positive conditional: 0, positive unconditional: 769, negative: 110, negative conditional: 0, negative unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 879, positive: 751, positive conditional: 0, positive unconditional: 751, negative: 128, negative conditional: 0, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 128, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 110, negative conditional: 0, negative unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 191, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 173, negative conditional: 0, negative unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1099, positive: 170, positive conditional: 0, positive unconditional: 170, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 879, unknown conditional: 0, unknown unconditional: 879] , Statistics on independence cache: Total cache size (in pairs): 879, Positive cache size: 769, Positive conditional cache size: 0, Positive unconditional cache size: 769, Negative cache size: 110, Negative conditional cache size: 0, Negative unconditional cache size: 110, Eliminated conditions: 0 - TimeoutResultAtElement [Line: 22]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 22). Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was enhancing Floyd-Hoare automaton (3states, 34/75 universal loopers) in iteration 1,while PetriNetUnfolder was constructing finite prefix that currently has 279598 conditions, 143001 events (115608/143000 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 32425. Compared 1081920 event pairs, 86010 based on Foata normal form. 0/151794 useless extension candidates. Maximal degree in co-relation 279517. Up to 109331 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 11 locations, 1 error locations. Started 8 CEGAR loops. EmptinessCheckTime: 30.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 768854.5ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 752525.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1789.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 154 SDtfs, 89 SDslu, 0 SDs, 0 SdLazy, 244 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 179.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=313occurred in iteration=2, InterpolantAutomatonStates: 12, 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: 10.8ms SsaConstructionTime, 56.7ms SatisfiabilityAnalysisTime, 90.6ms InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 71 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown