/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 22:48:17,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 22:48:17,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 22:48:17,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 22:48:17,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 22:48:17,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 22:48:17,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 22:48:17,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 22:48:17,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 22:48:17,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 22:48:17,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 22:48:17,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 22:48:17,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 22:48:17,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 22:48:17,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 22:48:17,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 22:48:17,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 22:48:17,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 22:48:17,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 22:48:17,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 22:48:17,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 22:48:17,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 22:48:17,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 22:48:17,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 22:48:17,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 22:48:17,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 22:48:17,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 22:48:17,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 22:48:17,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 22:48:17,959 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 22:48:17,959 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 22:48:17,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 22:48:17,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 22:48:17,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 22:48:17,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 22:48:17,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 22:48:17,967 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-SemanticLbe.epf [2021-03-11 22:48:17,996 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 22:48:17,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 22:48:17,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 22:48:17,999 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 22:48:17,999 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 22:48:17,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 22:48:17,999 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 22:48:17,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 22:48:17,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 22:48:18,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 22:48:18,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 22:48:18,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 22:48:18,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 22:48:18,000 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 22:48:18,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 22:48:18,001 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 22:48:18,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 22:48:18,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 22:48:18,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 22:48:18,001 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 22:48:18,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 22:48:18,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 22:48:18,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 22:48:18,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 22:48:18,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 22:48:18,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 22:48:18,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 22:48:18,002 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 22:48:18,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 22:48:18,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 22:48:18,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 22:48:18,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 22:48:18,265 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 22:48:18,266 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 22:48:18,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl [2021-03-11 22:48:18,267 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl' [2021-03-11 22:48:18,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 22:48:18,308 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 22:48:18,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 22:48:18,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 22:48:18,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 22:48:18,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:48:18" (1/1) ... [2021-03-11 22:48:18,324 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:48:18" (1/1) ... [2021-03-11 22:48:18,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 22:48:18,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 22:48:18,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 22:48:18,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 22:48:18,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:48:18" (1/1) ... [2021-03-11 22:48:18,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:48:18" (1/1) ... [2021-03-11 22:48:18,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:48:18" (1/1) ... [2021-03-11 22:48:18,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:48:18" (1/1) ... [2021-03-11 22:48:18,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:48:18" (1/1) ... [2021-03-11 22:48:18,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:48:18" (1/1) ... [2021-03-11 22:48:18,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:48:18" (1/1) ... [2021-03-11 22:48:18,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 22:48:18,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 22:48:18,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 22:48:18,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 22:48:18,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:48:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 22:48:18,414 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-03-11 22:48:18,414 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-03-11 22:48:18,414 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-03-11 22:48:18,416 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-03-11 22:48:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-03-11 22:48:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-03-11 22:48:18,417 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-03-11 22:48:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-03-11 22:48:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-03-11 22:48:18,417 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-03-11 22:48:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-03-11 22:48:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-03-11 22:48:18,417 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-03-11 22:48:18,417 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-03-11 22:48:18,417 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-03-11 22:48:18,418 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 22:48:18,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 22:48:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 22:48:18,418 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-03-11 22:48:18,418 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-03-11 22:48:18,418 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-03-11 22:48:18,418 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-03-11 22:48:18,419 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-03-11 22:48:18,419 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-03-11 22:48:18,420 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-03-11 22:48:18,420 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-03-11 22:48:18,420 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-03-11 22:48:18,421 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-03-11 22:48:18,421 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-03-11 22:48:18,421 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-03-11 22:48:18,422 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 22:48:18,570 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 22:48:18,570 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 22:48:18,571 INFO L202 PluginConnector]: Adding new model example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 10:48:18 BoogieIcfgContainer [2021-03-11 22:48:18,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 22:48:18,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 22:48:18,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 22:48:18,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 22:48:18,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:48:18" (1/2) ... [2021-03-11 22:48:18,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@541acfce and model type example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 10:48:18, skipping insertion in model container [2021-03-11 22:48:18,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 10:48:18" (2/2) ... [2021-03-11 22:48:18,576 INFO L111 eAbstractionObserver]: Analyzing ICFG example_9.bpl [2021-03-11 22:48:18,580 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 22:48:18,582 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 22:48:18,583 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 22:48:18,675 INFO L149 ThreadInstanceAdder]: Constructed 81 joinOtherThreadTransitions. [2021-03-11 22:48:18,687 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-03-11 22:48:18,701 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 22:48:18,701 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 22:48:18,701 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 22:48:18,701 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 22:48:18,701 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 22:48:18,701 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 22:48:18,701 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 22:48:18,701 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 22:48:18,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 120 transitions, 528 flow [2021-03-11 22:48:19,011 INFO L129 PetriNetUnfolder]: 1793/2334 cut-off events. [2021-03-11 22:48:19,012 INFO L130 PetriNetUnfolder]: For 2304/2304 co-relation queries the response was YES. [2021-03-11 22:48:19,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4666 conditions, 2334 events. 1793/2334 cut-off events. For 2304/2304 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 8920 event pairs, 0 based on Foata normal form. 0/2333 useless extension candidates. Maximal degree in co-relation 2090. Up to 630 conditions per place. [2021-03-11 22:48:19,024 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 120 transitions, 528 flow [2021-03-11 22:48:19,048 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 109 transitions, 488 flow [2021-03-11 22:48:19,051 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 22:48:19,060 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 109 transitions, 488 flow [2021-03-11 22:48:19,065 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 109 transitions, 488 flow [2021-03-11 22:48:19,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 109 transitions, 488 flow [2021-03-11 22:48:19,197 INFO L129 PetriNetUnfolder]: 1793/2332 cut-off events. [2021-03-11 22:48:19,198 INFO L130 PetriNetUnfolder]: For 2304/2304 co-relation queries the response was YES. [2021-03-11 22:48:19,204 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4664 conditions, 2332 events. 1793/2332 cut-off events. For 2304/2304 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 8412 event pairs, 0 based on Foata normal form. 0/2332 useless extension candidates. Maximal degree in co-relation 2090. Up to 630 conditions per place. [2021-03-11 22:48:19,233 INFO L116 LiptonReduction]: Number of co-enabled transitions 2736 [2021-03-11 22:48:19,386 INFO L131 LiptonReduction]: Checked pairs total: 11475 [2021-03-11 22:48:19,386 INFO L133 LiptonReduction]: Total number of compositions: 9 [2021-03-11 22:48:19,388 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 339 [2021-03-11 22:48:19,520 INFO L129 PetriNetUnfolder]: 1793/2322 cut-off events. [2021-03-11 22:48:19,520 INFO L130 PetriNetUnfolder]: For 2304/2304 co-relation queries the response was YES. [2021-03-11 22:48:19,520 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:48:19,521 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:48:19,521 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:48:19,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:48:19,526 INFO L82 PathProgramCache]: Analyzing trace with hash 662505177, now seen corresponding path program 1 times [2021-03-11 22:48:19,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:48:19,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085887999] [2021-03-11 22:48:19,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:48:19,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:48:19,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:19,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:19,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:19,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:48:19,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:19,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:19,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:48:19,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085887999] [2021-03-11 22:48:19,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:48:19,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:48:19,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240174390] [2021-03-11 22:48:19,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:48:19,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:48:19,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:48:19,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:48:19,685 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 129 [2021-03-11 22:48:19,688 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 100 transitions, 470 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2021-03-11 22:48:19,689 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:48:19,689 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 129 [2021-03-11 22:48:19,689 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:48:19,811 INFO L129 PetriNetUnfolder]: 1001/1368 cut-off events. [2021-03-11 22:48:19,811 INFO L130 PetriNetUnfolder]: For 2025/2025 co-relation queries the response was YES. [2021-03-11 22:48:19,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2840 conditions, 1368 events. 1001/1368 cut-off events. For 2025/2025 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 5714 event pairs, 0 based on Foata normal form. 163/1531 useless extension candidates. Maximal degree in co-relation 2066. Up to 280 conditions per place. [2021-03-11 22:48:19,821 INFO L132 encePairwiseOnDemand]: 123/129 looper letters, 4 selfloop transitions, 1 changer transitions 0/95 dead transitions. [2021-03-11 22:48:19,822 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 95 transitions, 455 flow [2021-03-11 22:48:19,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:48:19,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:48:19,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2021-03-11 22:48:19,834 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9483204134366925 [2021-03-11 22:48:19,834 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2021-03-11 22:48:19,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2021-03-11 22:48:19,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:48:19,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2021-03-11 22:48:19,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2021-03-11 22:48:19,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2021-03-11 22:48:19,856 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2021-03-11 22:48:19,858 INFO L185 Difference]: Start difference. First operand has 56 places, 100 transitions, 470 flow. Second operand 3 states and 367 transitions. [2021-03-11 22:48:19,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 95 transitions, 455 flow [2021-03-11 22:48:19,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 95 transitions, 285 flow, removed 0 selfloop flow, removed 18 redundant places. [2021-03-11 22:48:19,874 INFO L241 Difference]: Finished difference. Result has 40 places, 95 transitions, 277 flow [2021-03-11 22:48:19,875 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=277, PETRI_PLACES=40, PETRI_TRANSITIONS=95} [2021-03-11 22:48:19,876 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, -16 predicate places. [2021-03-11 22:48:19,876 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 95 transitions, 277 flow [2021-03-11 22:48:19,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2021-03-11 22:48:19,876 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:48:19,877 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:48:19,877 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 22:48:19,878 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:48:19,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:48:19,879 INFO L82 PathProgramCache]: Analyzing trace with hash 167947751, now seen corresponding path program 1 times [2021-03-11 22:48:19,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:48:19,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630292679] [2021-03-11 22:48:19,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:48:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:48:19,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:19,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:19,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:19,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:48:19,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:19,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:19,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:48:19,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630292679] [2021-03-11 22:48:19,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:48:19,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:48:19,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440677683] [2021-03-11 22:48:19,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:48:19,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:48:19,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:48:19,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:48:19,933 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 129 [2021-03-11 22:48:19,934 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 95 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2021-03-11 22:48:19,934 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:48:19,934 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 129 [2021-03-11 22:48:19,934 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:48:19,990 INFO L129 PetriNetUnfolder]: 994/1360 cut-off events. [2021-03-11 22:48:19,990 INFO L130 PetriNetUnfolder]: For 157/157 co-relation queries the response was YES. [2021-03-11 22:48:19,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1530 conditions, 1360 events. 994/1360 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 6104 event pairs, 0 based on Foata normal form. 1/1361 useless extension candidates. Maximal degree in co-relation 1513. Up to 280 conditions per place. [2021-03-11 22:48:19,997 INFO L132 encePairwiseOnDemand]: 127/129 looper letters, 8 selfloop transitions, 1 changer transitions 0/94 dead transitions. [2021-03-11 22:48:19,997 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 94 transitions, 292 flow [2021-03-11 22:48:19,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:48:19,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:48:19,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2021-03-11 22:48:19,999 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9483204134366925 [2021-03-11 22:48:19,999 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2021-03-11 22:48:19,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2021-03-11 22:48:20,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:48:20,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2021-03-11 22:48:20,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2021-03-11 22:48:20,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2021-03-11 22:48:20,003 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2021-03-11 22:48:20,003 INFO L185 Difference]: Start difference. First operand has 40 places, 95 transitions, 277 flow. Second operand 3 states and 367 transitions. [2021-03-11 22:48:20,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 94 transitions, 292 flow [2021-03-11 22:48:20,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 94 transitions, 291 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:48:20,006 INFO L241 Difference]: Finished difference. Result has 41 places, 94 transitions, 275 flow [2021-03-11 22:48:20,006 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=275, PETRI_PLACES=41, PETRI_TRANSITIONS=94} [2021-03-11 22:48:20,007 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, -15 predicate places. [2021-03-11 22:48:20,007 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 94 transitions, 275 flow [2021-03-11 22:48:20,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2021-03-11 22:48:20,007 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:48:20,007 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:48:20,007 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 22:48:20,008 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:48:20,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:48:20,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1547170035, now seen corresponding path program 1 times [2021-03-11 22:48:20,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:48:20,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797888766] [2021-03-11 22:48:20,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:48:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:48:20,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:20,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:20,047 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:20,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:48:20,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:20,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:20,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:48:20,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797888766] [2021-03-11 22:48:20,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:48:20,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:48:20,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614836787] [2021-03-11 22:48:20,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:48:20,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:48:20,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:48:20,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:48:20,054 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 129 [2021-03-11 22:48:20,054 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 94 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2021-03-11 22:48:20,054 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:48:20,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 129 [2021-03-11 22:48:20,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:48:20,104 INFO L129 PetriNetUnfolder]: 946/1304 cut-off events. [2021-03-11 22:48:20,104 INFO L130 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2021-03-11 22:48:20,106 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1468 conditions, 1304 events. 946/1304 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 5805 event pairs, 0 based on Foata normal form. 7/1311 useless extension candidates. Maximal degree in co-relation 1460. Up to 280 conditions per place. [2021-03-11 22:48:20,111 INFO L132 encePairwiseOnDemand]: 126/129 looper letters, 7 selfloop transitions, 1 changer transitions 0/92 dead transitions. [2021-03-11 22:48:20,111 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 92 transitions, 285 flow [2021-03-11 22:48:20,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:48:20,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:48:20,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2021-03-11 22:48:20,113 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9483204134366925 [2021-03-11 22:48:20,113 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2021-03-11 22:48:20,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2021-03-11 22:48:20,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:48:20,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2021-03-11 22:48:20,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2021-03-11 22:48:20,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2021-03-11 22:48:20,115 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2021-03-11 22:48:20,115 INFO L185 Difference]: Start difference. First operand has 41 places, 94 transitions, 275 flow. Second operand 3 states and 367 transitions. [2021-03-11 22:48:20,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 92 transitions, 285 flow [2021-03-11 22:48:20,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 92 transitions, 284 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:48:20,118 INFO L241 Difference]: Finished difference. Result has 42 places, 92 transitions, 270 flow [2021-03-11 22:48:20,118 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=270, PETRI_PLACES=42, PETRI_TRANSITIONS=92} [2021-03-11 22:48:20,119 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, -14 predicate places. [2021-03-11 22:48:20,119 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 92 transitions, 270 flow [2021-03-11 22:48:20,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2021-03-11 22:48:20,119 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:48:20,119 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:48:20,119 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 22:48:20,119 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:48:20,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:48:20,120 INFO L82 PathProgramCache]: Analyzing trace with hash 2141675623, now seen corresponding path program 1 times [2021-03-11 22:48:20,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:48:20,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559917472] [2021-03-11 22:48:20,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:48:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:48:20,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:20,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:20,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:20,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:48:20,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:20,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:20,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:48:20,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559917472] [2021-03-11 22:48:20,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:48:20,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:48:20,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436918989] [2021-03-11 22:48:20,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:48:20,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:48:20,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:48:20,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:48:20,157 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 129 [2021-03-11 22:48:20,158 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 92 transitions, 270 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2021-03-11 22:48:20,158 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:48:20,158 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 129 [2021-03-11 22:48:20,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:48:20,190 INFO L129 PetriNetUnfolder]: 393/597 cut-off events. [2021-03-11 22:48:20,190 INFO L130 PetriNetUnfolder]: For 149/149 co-relation queries the response was YES. [2021-03-11 22:48:20,191 INFO L84 FinitePrefix]: Finished finitePrefix Result has 650 conditions, 597 events. 393/597 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2501 event pairs, 0 based on Foata normal form. 112/709 useless extension candidates. Maximal degree in co-relation 642. Up to 140 conditions per place. [2021-03-11 22:48:20,193 INFO L132 encePairwiseOnDemand]: 122/129 looper letters, 3 selfloop transitions, 1 changer transitions 0/86 dead transitions. [2021-03-11 22:48:20,193 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 86 transitions, 260 flow [2021-03-11 22:48:20,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:48:20,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:48:20,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2021-03-11 22:48:20,195 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9483204134366925 [2021-03-11 22:48:20,195 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2021-03-11 22:48:20,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2021-03-11 22:48:20,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:48:20,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2021-03-11 22:48:20,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2021-03-11 22:48:20,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2021-03-11 22:48:20,198 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2021-03-11 22:48:20,199 INFO L185 Difference]: Start difference. First operand has 42 places, 92 transitions, 270 flow. Second operand 3 states and 367 transitions. [2021-03-11 22:48:20,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 86 transitions, 260 flow [2021-03-11 22:48:20,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 86 transitions, 259 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:48:20,205 INFO L241 Difference]: Finished difference. Result has 43 places, 86 transitions, 253 flow [2021-03-11 22:48:20,205 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=253, PETRI_PLACES=43, PETRI_TRANSITIONS=86} [2021-03-11 22:48:20,205 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, -13 predicate places. [2021-03-11 22:48:20,205 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 86 transitions, 253 flow [2021-03-11 22:48:20,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2021-03-11 22:48:20,205 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:48:20,205 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:48:20,206 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 22:48:20,206 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:48:20,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:48:20,206 INFO L82 PathProgramCache]: Analyzing trace with hash -552618861, now seen corresponding path program 1 times [2021-03-11 22:48:20,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:48:20,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151664167] [2021-03-11 22:48:20,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:48:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:48:20,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:20,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:20,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:20,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:48:20,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:20,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:20,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:48:20,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151664167] [2021-03-11 22:48:20,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:48:20,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:48:20,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799146134] [2021-03-11 22:48:20,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:48:20,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:48:20,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:48:20,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:48:20,241 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 129 [2021-03-11 22:48:20,242 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 86 transitions, 253 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2021-03-11 22:48:20,242 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:48:20,242 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 129 [2021-03-11 22:48:20,242 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:48:20,278 INFO L129 PetriNetUnfolder]: 309/492 cut-off events. [2021-03-11 22:48:20,278 INFO L130 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2021-03-11 22:48:20,279 INFO L84 FinitePrefix]: Finished finitePrefix Result has 566 conditions, 492 events. 309/492 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2021 event pairs, 0 based on Foata normal form. 15/507 useless extension candidates. Maximal degree in co-relation 558. Up to 105 conditions per place. [2021-03-11 22:48:20,281 INFO L132 encePairwiseOnDemand]: 125/129 looper letters, 6 selfloop transitions, 1 changer transitions 0/83 dead transitions. [2021-03-11 22:48:20,281 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 83 transitions, 258 flow [2021-03-11 22:48:20,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:48:20,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:48:20,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2021-03-11 22:48:20,282 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9483204134366925 [2021-03-11 22:48:20,282 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2021-03-11 22:48:20,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2021-03-11 22:48:20,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:48:20,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2021-03-11 22:48:20,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2021-03-11 22:48:20,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2021-03-11 22:48:20,284 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2021-03-11 22:48:20,284 INFO L185 Difference]: Start difference. First operand has 43 places, 86 transitions, 253 flow. Second operand 3 states and 367 transitions. [2021-03-11 22:48:20,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 83 transitions, 258 flow [2021-03-11 22:48:20,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 83 transitions, 257 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:48:20,287 INFO L241 Difference]: Finished difference. Result has 44 places, 83 transitions, 245 flow [2021-03-11 22:48:20,287 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=245, PETRI_PLACES=44, PETRI_TRANSITIONS=83} [2021-03-11 22:48:20,287 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, -12 predicate places. [2021-03-11 22:48:20,287 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 83 transitions, 245 flow [2021-03-11 22:48:20,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2021-03-11 22:48:20,288 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:48:20,288 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:48:20,288 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 22:48:20,288 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:48:20,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:48:20,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1960465019, now seen corresponding path program 1 times [2021-03-11 22:48:20,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:48:20,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314638935] [2021-03-11 22:48:20,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:48:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:48:20,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:20,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:20,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:20,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:48:20,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:20,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:20,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:48:20,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314638935] [2021-03-11 22:48:20,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:48:20,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:48:20,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583270798] [2021-03-11 22:48:20,314 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:48:20,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:48:20,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:48:20,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:48:20,315 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 129 [2021-03-11 22:48:20,315 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 83 transitions, 245 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2021-03-11 22:48:20,315 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:48:20,315 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 129 [2021-03-11 22:48:20,315 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:48:20,333 INFO L129 PetriNetUnfolder]: 76/160 cut-off events. [2021-03-11 22:48:20,334 INFO L130 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2021-03-11 22:48:20,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 160 events. 76/160 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 486 event pairs, 0 based on Foata normal form. 48/208 useless extension candidates. Maximal degree in co-relation 179. Up to 30 conditions per place. [2021-03-11 22:48:20,334 INFO L132 encePairwiseOnDemand]: 121/129 looper letters, 2 selfloop transitions, 1 changer transitions 0/76 dead transitions. [2021-03-11 22:48:20,334 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 76 transitions, 230 flow [2021-03-11 22:48:20,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:48:20,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:48:20,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2021-03-11 22:48:20,336 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9483204134366925 [2021-03-11 22:48:20,336 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2021-03-11 22:48:20,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2021-03-11 22:48:20,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:48:20,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2021-03-11 22:48:20,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2021-03-11 22:48:20,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2021-03-11 22:48:20,337 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2021-03-11 22:48:20,338 INFO L185 Difference]: Start difference. First operand has 44 places, 83 transitions, 245 flow. Second operand 3 states and 367 transitions. [2021-03-11 22:48:20,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 76 transitions, 230 flow [2021-03-11 22:48:20,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 76 transitions, 229 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:48:20,339 INFO L241 Difference]: Finished difference. Result has 45 places, 76 transitions, 225 flow [2021-03-11 22:48:20,339 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=225, PETRI_PLACES=45, PETRI_TRANSITIONS=76} [2021-03-11 22:48:20,340 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, -11 predicate places. [2021-03-11 22:48:20,340 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 76 transitions, 225 flow [2021-03-11 22:48:20,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2021-03-11 22:48:20,340 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:48:20,340 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:48:20,340 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 22:48:20,340 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:48:20,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:48:20,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1254155677, now seen corresponding path program 1 times [2021-03-11 22:48:20,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:48:20,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307876065] [2021-03-11 22:48:20,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:48:20,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:48:20,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:20,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:20,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:20,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:48:20,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:20,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:20,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:48:20,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307876065] [2021-03-11 22:48:20,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:48:20,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:48:20,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787370537] [2021-03-11 22:48:20,368 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:48:20,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:48:20,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:48:20,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:48:20,369 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 129 [2021-03-11 22:48:20,369 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 76 transitions, 225 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2021-03-11 22:48:20,369 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:48:20,369 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 129 [2021-03-11 22:48:20,369 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:48:20,395 INFO L129 PetriNetUnfolder]: 10/48 cut-off events. [2021-03-11 22:48:20,395 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-03-11 22:48:20,395 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 48 events. 10/48 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 64 event pairs, 0 based on Foata normal form. 18/66 useless extension candidates. Maximal degree in co-relation 60. Up to 8 conditions per place. [2021-03-11 22:48:20,396 INFO L132 encePairwiseOnDemand]: 120/129 looper letters, 1 selfloop transitions, 1 changer transitions 0/42 dead transitions. [2021-03-11 22:48:20,396 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 42 transitions, 127 flow [2021-03-11 22:48:20,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:48:20,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:48:20,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2021-03-11 22:48:20,397 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9483204134366925 [2021-03-11 22:48:20,397 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2021-03-11 22:48:20,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2021-03-11 22:48:20,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:48:20,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2021-03-11 22:48:20,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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) [2021-03-11 22:48:20,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2021-03-11 22:48:20,398 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2021-03-11 22:48:20,399 INFO L185 Difference]: Start difference. First operand has 45 places, 76 transitions, 225 flow. Second operand 3 states and 367 transitions. [2021-03-11 22:48:20,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 42 transitions, 127 flow [2021-03-11 22:48:20,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 42 transitions, 126 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:48:20,399 INFO L241 Difference]: Finished difference. Result has 46 places, 42 transitions, 124 flow [2021-03-11 22:48:20,400 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=46, PETRI_TRANSITIONS=42} [2021-03-11 22:48:20,400 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, -10 predicate places. [2021-03-11 22:48:20,400 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 42 transitions, 124 flow [2021-03-11 22:48:20,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2021-03-11 22:48:20,400 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:48:20,400 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:48:20,400 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 22:48:20,400 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:48:20,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:48:20,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1894955731, now seen corresponding path program 1 times [2021-03-11 22:48:20,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:48:20,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522551521] [2021-03-11 22:48:20,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:48:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:48:20,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:20,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:20,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:20,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:48:20,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:20,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 22:48:20,509 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 22:48:20,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 22:48:20,554 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 22:48:20,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 22:48:20,588 INFO L142 QuantifierPusher]: treesize reduction 9, result has 81.3 percent of original size [2021-03-11 22:48:20,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 22:48:20,633 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-11 22:48:20,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 22:48:20,680 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 22:48:20,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 22:48:20,735 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 22:48:20,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 22:48:20,787 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 22:48:20,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:48:20,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:48:20,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522551521] [2021-03-11 22:48:20,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:48:20,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 22:48:20,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002984484] [2021-03-11 22:48:20,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 22:48:20,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:48:20,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 22:48:20,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 22:48:20,827 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 22:48:20,829 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 42 transitions, 124 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:48:20,829 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:48:20,829 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 22:48:20,829 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:48:21,152 INFO L129 PetriNetUnfolder]: 2489/3679 cut-off events. [2021-03-11 22:48:21,153 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 22:48:21,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6779 conditions, 3679 events. 2489/3679 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 19510 event pairs, 769 based on Foata normal form. 1/3495 useless extension candidates. Maximal degree in co-relation 6771. Up to 1153 conditions per place. [2021-03-11 22:48:21,177 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 44 selfloop transitions, 8 changer transitions 1/85 dead transitions. [2021-03-11 22:48:21,177 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 85 transitions, 316 flow [2021-03-11 22:48:21,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 22:48:21,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 22:48:21,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 22:48:21,179 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 22:48:21,180 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 22:48:21,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 22:48:21,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:48:21,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 22:48:21,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 22:48:21,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:48:21,184 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:48:21,184 INFO L185 Difference]: Start difference. First operand has 46 places, 42 transitions, 124 flow. Second operand 11 states and 1253 transitions. [2021-03-11 22:48:21,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 85 transitions, 316 flow [2021-03-11 22:48:21,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 85 transitions, 315 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:48:21,186 INFO L241 Difference]: Finished difference. Result has 64 places, 49 transitions, 186 flow [2021-03-11 22:48:21,186 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=186, PETRI_PLACES=64, PETRI_TRANSITIONS=49} [2021-03-11 22:48:21,186 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 8 predicate places. [2021-03-11 22:48:21,186 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 49 transitions, 186 flow [2021-03-11 22:48:21,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:48:21,187 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:48:21,187 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:48:21,187 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 22:48:21,187 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:48:21,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:48:21,187 INFO L82 PathProgramCache]: Analyzing trace with hash -678643035, now seen corresponding path program 2 times [2021-03-11 22:48:21,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:48:21,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181753561] [2021-03-11 22:48:21,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:48:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:48:21,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:21,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:21,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:21,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:48:21,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:21,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 22:48:21,224 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 22:48:21,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 22:48:21,237 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 22:48:21,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 22:48:21,254 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 22:48:21,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 22:48:21,278 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 22:48:21,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 22:48:21,306 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 22:48:21,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 22:48:21,341 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 22:48:21,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 22:48:21,384 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 22:48:21,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:48:21,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:48:21,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181753561] [2021-03-11 22:48:21,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:48:21,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 22:48:21,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432454636] [2021-03-11 22:48:21,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 22:48:21,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:48:21,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 22:48:21,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 22:48:21,424 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 22:48:21,425 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 49 transitions, 186 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:48:21,425 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:48:21,425 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 22:48:21,425 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:48:21,870 INFO L129 PetriNetUnfolder]: 3902/6999 cut-off events. [2021-03-11 22:48:21,871 INFO L130 PetriNetUnfolder]: For 5362/5416 co-relation queries the response was YES. [2021-03-11 22:48:21,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15574 conditions, 6999 events. 3902/6999 cut-off events. For 5362/5416 co-relation queries the response was YES. Maximal size of possible extension queue 502. Compared 55167 event pairs, 963 based on Foata normal form. 1/6764 useless extension candidates. Maximal degree in co-relation 15557. Up to 1551 conditions per place. [2021-03-11 22:48:21,927 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 68 selfloop transitions, 15 changer transitions 1/116 dead transitions. [2021-03-11 22:48:21,927 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 116 transitions, 678 flow [2021-03-11 22:48:21,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 22:48:21,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 22:48:21,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 22:48:21,930 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 22:48:21,930 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 22:48:21,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 22:48:21,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:48:21,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 22:48:21,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 22:48:21,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:48:21,934 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:48:21,934 INFO L185 Difference]: Start difference. First operand has 64 places, 49 transitions, 186 flow. Second operand 11 states and 1253 transitions. [2021-03-11 22:48:21,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 116 transitions, 678 flow [2021-03-11 22:48:21,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 116 transitions, 653 flow, removed 8 selfloop flow, removed 2 redundant places. [2021-03-11 22:48:21,940 INFO L241 Difference]: Finished difference. Result has 80 places, 63 transitions, 340 flow [2021-03-11 22:48:21,940 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=340, PETRI_PLACES=80, PETRI_TRANSITIONS=63} [2021-03-11 22:48:21,941 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 24 predicate places. [2021-03-11 22:48:21,941 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 63 transitions, 340 flow [2021-03-11 22:48:21,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:48:21,941 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:48:21,941 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:48:21,941 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 22:48:21,941 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:48:21,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:48:21,942 INFO L82 PathProgramCache]: Analyzing trace with hash -2004694209, now seen corresponding path program 3 times [2021-03-11 22:48:21,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:48:21,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732250054] [2021-03-11 22:48:21,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:48:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:48:21,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:21,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:21,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:21,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:48:21,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:21,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 22:48:21,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:21,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 22:48:21,982 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 22:48:21,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 22:48:21,996 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 22:48:21,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 22:48:22,015 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 22:48:22,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 22:48:22,038 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 22:48:22,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 22:48:22,066 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 22:48:22,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 22:48:22,110 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 22:48:22,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:48:22,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:48:22,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732250054] [2021-03-11 22:48:22,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:48:22,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 22:48:22,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860453662] [2021-03-11 22:48:22,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 22:48:22,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:48:22,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 22:48:22,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 22:48:22,140 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 22:48:22,141 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 63 transitions, 340 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:48:22,141 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:48:22,141 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 22:48:22,141 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:48:22,726 INFO L129 PetriNetUnfolder]: 4028/7108 cut-off events. [2021-03-11 22:48:22,727 INFO L130 PetriNetUnfolder]: For 15658/16241 co-relation queries the response was YES. [2021-03-11 22:48:22,802 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21517 conditions, 7108 events. 4028/7108 cut-off events. For 15658/16241 co-relation queries the response was YES. Maximal size of possible extension queue 496. Compared 53872 event pairs, 970 based on Foata normal form. 1/6851 useless extension candidates. Maximal degree in co-relation 21492. Up to 1968 conditions per place. [2021-03-11 22:48:22,832 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 72 selfloop transitions, 19 changer transitions 0/123 dead transitions. [2021-03-11 22:48:22,832 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 123 transitions, 910 flow [2021-03-11 22:48:22,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 22:48:22,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 22:48:22,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 22:48:22,834 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 22:48:22,834 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 22:48:22,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 22:48:22,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:48:22,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 22:48:22,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 22:48:22,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:48:22,840 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:48:22,840 INFO L185 Difference]: Start difference. First operand has 80 places, 63 transitions, 340 flow. Second operand 11 states and 1253 transitions. [2021-03-11 22:48:22,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 123 transitions, 910 flow [2021-03-11 22:48:22,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 123 transitions, 893 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-03-11 22:48:22,863 INFO L241 Difference]: Finished difference. Result has 98 places, 77 transitions, 533 flow [2021-03-11 22:48:22,864 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=533, PETRI_PLACES=98, PETRI_TRANSITIONS=77} [2021-03-11 22:48:22,864 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 42 predicate places. [2021-03-11 22:48:22,864 INFO L480 AbstractCegarLoop]: Abstraction has has 98 places, 77 transitions, 533 flow [2021-03-11 22:48:22,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:48:22,865 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:48:22,865 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:48:22,865 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 22:48:22,865 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:48:22,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:48:22,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1171099233, now seen corresponding path program 4 times [2021-03-11 22:48:22,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:48:22,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445406814] [2021-03-11 22:48:22,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:48:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:48:22,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:22,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:22,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:22,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:48:22,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:22,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 22:48:22,933 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 22:48:22,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 22:48:22,944 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 22:48:22,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 22:48:22,960 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 22:48:22,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 22:48:22,985 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 22:48:22,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 22:48:23,015 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 22:48:23,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 22:48:23,047 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 22:48:23,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 22:48:23,088 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 22:48:23,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:48:23,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:48:23,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445406814] [2021-03-11 22:48:23,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:48:23,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 22:48:23,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448914300] [2021-03-11 22:48:23,125 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 22:48:23,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:48:23,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 22:48:23,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 22:48:23,127 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 22:48:23,128 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 77 transitions, 533 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:48:23,128 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:48:23,128 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 22:48:23,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:48:24,194 INFO L129 PetriNetUnfolder]: 6191/12223 cut-off events. [2021-03-11 22:48:24,194 INFO L130 PetriNetUnfolder]: For 42213/43203 co-relation queries the response was YES. [2021-03-11 22:48:24,345 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38593 conditions, 12223 events. 6191/12223 cut-off events. For 42213/43203 co-relation queries the response was YES. Maximal size of possible extension queue 1017. Compared 116505 event pairs, 1221 based on Foata normal form. 3/11749 useless extension candidates. Maximal degree in co-relation 38559. Up to 2507 conditions per place. [2021-03-11 22:48:24,393 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 95 selfloop transitions, 38 changer transitions 0/165 dead transitions. [2021-03-11 22:48:24,393 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 165 transitions, 1599 flow [2021-03-11 22:48:24,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 22:48:24,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 22:48:24,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 22:48:24,395 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 22:48:24,395 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 22:48:24,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 22:48:24,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:48:24,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 22:48:24,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 22:48:24,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:48:24,399 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:48:24,399 INFO L185 Difference]: Start difference. First operand has 98 places, 77 transitions, 533 flow. Second operand 11 states and 1253 transitions. [2021-03-11 22:48:24,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 165 transitions, 1599 flow [2021-03-11 22:48:24,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 165 transitions, 1509 flow, removed 36 selfloop flow, removed 1 redundant places. [2021-03-11 22:48:24,466 INFO L241 Difference]: Finished difference. Result has 116 places, 103 transitions, 935 flow [2021-03-11 22:48:24,466 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=935, PETRI_PLACES=116, PETRI_TRANSITIONS=103} [2021-03-11 22:48:24,466 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 60 predicate places. [2021-03-11 22:48:24,466 INFO L480 AbstractCegarLoop]: Abstraction has has 116 places, 103 transitions, 935 flow [2021-03-11 22:48:24,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:48:24,467 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:48:24,467 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:48:24,467 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 22:48:24,467 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:48:24,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:48:24,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1457746549, now seen corresponding path program 5 times [2021-03-11 22:48:24,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:48:24,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261533224] [2021-03-11 22:48:24,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:48:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:48:24,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:24,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:24,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:24,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:48:24,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:24,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 22:48:24,518 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 22:48:24,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 22:48:24,529 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 22:48:24,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 22:48:24,545 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 22:48:24,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 22:48:24,565 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 22:48:24,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 22:48:24,591 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 22:48:24,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 22:48:24,645 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 22:48:24,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 22:48:24,689 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 22:48:24,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:48:24,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:48:24,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261533224] [2021-03-11 22:48:24,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:48:24,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 22:48:24,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41628821] [2021-03-11 22:48:24,736 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 22:48:24,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:48:24,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 22:48:24,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 22:48:24,737 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 22:48:24,738 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 103 transitions, 935 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:48:24,738 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:48:24,738 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 22:48:24,738 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:48:26,339 INFO L129 PetriNetUnfolder]: 8395/16987 cut-off events. [2021-03-11 22:48:26,339 INFO L130 PetriNetUnfolder]: For 89519/91211 co-relation queries the response was YES. [2021-03-11 22:48:26,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61448 conditions, 16987 events. 8395/16987 cut-off events. For 89519/91211 co-relation queries the response was YES. Maximal size of possible extension queue 1519. Compared 173878 event pairs, 1388 based on Foata normal form. 3/16377 useless extension candidates. Maximal degree in co-relation 61405. Up to 3271 conditions per place. [2021-03-11 22:48:26,532 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 95 selfloop transitions, 61 changer transitions 0/188 dead transitions. [2021-03-11 22:48:26,532 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 188 transitions, 2189 flow [2021-03-11 22:48:26,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 22:48:26,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 22:48:26,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 22:48:26,534 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 22:48:26,534 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 22:48:26,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 22:48:26,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:48:26,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 22:48:26,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 22:48:26,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:48:26,612 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:48:26,612 INFO L185 Difference]: Start difference. First operand has 116 places, 103 transitions, 935 flow. Second operand 11 states and 1253 transitions. [2021-03-11 22:48:26,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 188 transitions, 2189 flow [2021-03-11 22:48:26,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 188 transitions, 2115 flow, removed 25 selfloop flow, removed 1 redundant places. [2021-03-11 22:48:26,862 INFO L241 Difference]: Finished difference. Result has 134 places, 129 transitions, 1489 flow [2021-03-11 22:48:26,862 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=909, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1489, PETRI_PLACES=134, PETRI_TRANSITIONS=129} [2021-03-11 22:48:26,862 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 78 predicate places. [2021-03-11 22:48:26,862 INFO L480 AbstractCegarLoop]: Abstraction has has 134 places, 129 transitions, 1489 flow [2021-03-11 22:48:26,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:48:26,863 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:48:26,863 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:48:26,863 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 22:48:26,863 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:48:26,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:48:26,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1947645759, now seen corresponding path program 6 times [2021-03-11 22:48:26,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:48:26,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015783946] [2021-03-11 22:48:26,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:48:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:48:26,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:26,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:26,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:26,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:48:26,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:26,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 22:48:26,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:26,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 22:48:26,905 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 22:48:26,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 22:48:26,918 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 22:48:26,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 22:48:26,935 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 22:48:26,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 22:48:26,961 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 22:48:26,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 22:48:26,992 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 22:48:26,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 22:48:27,029 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 22:48:27,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:48:27,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:48:27,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015783946] [2021-03-11 22:48:27,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:48:27,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 22:48:27,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790823808] [2021-03-11 22:48:27,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 22:48:27,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:48:27,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 22:48:27,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 22:48:27,064 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 22:48:27,065 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 129 transitions, 1489 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:48:27,065 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:48:27,065 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 22:48:27,065 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:48:30,003 INFO L129 PetriNetUnfolder]: 12630/27067 cut-off events. [2021-03-11 22:48:30,003 INFO L130 PetriNetUnfolder]: For 171427/173347 co-relation queries the response was YES. [2021-03-11 22:48:30,270 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97903 conditions, 27067 events. 12630/27067 cut-off events. For 171427/173347 co-relation queries the response was YES. Maximal size of possible extension queue 2754. Compared 313391 event pairs, 2625 based on Foata normal form. 2/25710 useless extension candidates. Maximal degree in co-relation 97851. Up to 4942 conditions per place. [2021-03-11 22:48:30,382 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 238 selfloop transitions, 56 changer transitions 0/326 dead transitions. [2021-03-11 22:48:30,382 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 326 transitions, 4833 flow [2021-03-11 22:48:30,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 22:48:30,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 22:48:30,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 22:48:30,386 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 22:48:30,386 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 22:48:30,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 22:48:30,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:48:30,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 22:48:30,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 22:48:30,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:48:30,396 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:48:30,396 INFO L185 Difference]: Start difference. First operand has 134 places, 129 transitions, 1489 flow. Second operand 11 states and 1253 transitions. [2021-03-11 22:48:30,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 326 transitions, 4833 flow [2021-03-11 22:48:31,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 326 transitions, 4667 flow, removed 73 selfloop flow, removed 1 redundant places. [2021-03-11 22:48:31,139 INFO L241 Difference]: Finished difference. Result has 152 places, 172 transitions, 2328 flow [2021-03-11 22:48:31,139 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=1429, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2328, PETRI_PLACES=152, PETRI_TRANSITIONS=172} [2021-03-11 22:48:31,139 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 96 predicate places. [2021-03-11 22:48:31,139 INFO L480 AbstractCegarLoop]: Abstraction has has 152 places, 172 transitions, 2328 flow [2021-03-11 22:48:31,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:48:31,139 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:48:31,140 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:48:31,140 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-11 22:48:31,140 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:48:31,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:48:31,140 INFO L82 PathProgramCache]: Analyzing trace with hash 487540367, now seen corresponding path program 1 times [2021-03-11 22:48:31,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:48:31,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374815371] [2021-03-11 22:48:31,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:48:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:48:31,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:31,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:31,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:31,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:48:31,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:31,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:31,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:48:31,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374815371] [2021-03-11 22:48:31,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:48:31,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:48:31,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384265912] [2021-03-11 22:48:31,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:48:31,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:48:31,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:48:31,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:48:31,171 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 129 [2021-03-11 22:48:31,171 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 172 transitions, 2328 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2021-03-11 22:48:31,171 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:48:31,171 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 129 [2021-03-11 22:48:31,171 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:48:31,563 INFO L129 PetriNetUnfolder]: 0/3267 cut-off events. [2021-03-11 22:48:31,563 INFO L130 PetriNetUnfolder]: For 17139/17678 co-relation queries the response was YES. [2021-03-11 22:48:31,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10063 conditions, 3267 events. 0/3267 cut-off events. For 17139/17678 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 49434 event pairs, 0 based on Foata normal form. 623/3505 useless extension candidates. Maximal degree in co-relation 0. Up to 326 conditions per place. [2021-03-11 22:48:31,567 INFO L132 encePairwiseOnDemand]: 124/129 looper letters, 1 selfloop transitions, 1 changer transitions 8/158 dead transitions. [2021-03-11 22:48:31,568 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 158 transitions, 2290 flow [2021-03-11 22:48:31,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:48:31,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:48:31,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 363 transitions. [2021-03-11 22:48:31,570 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.937984496124031 [2021-03-11 22:48:31,570 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 363 transitions. [2021-03-11 22:48:31,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 363 transitions. [2021-03-11 22:48:31,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:48:31,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 363 transitions. [2021-03-11 22:48:31,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2021-03-11 22:48:31,572 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2021-03-11 22:48:31,572 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 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) [2021-03-11 22:48:31,572 INFO L185 Difference]: Start difference. First operand has 152 places, 172 transitions, 2328 flow. Second operand 3 states and 363 transitions. [2021-03-11 22:48:31,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 158 transitions, 2290 flow [2021-03-11 22:48:31,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 158 transitions, 2201 flow, removed 38 selfloop flow, removed 1 redundant places. [2021-03-11 22:48:31,645 INFO L241 Difference]: Finished difference. Result has 153 places, 150 transitions, 2107 flow [2021-03-11 22:48:31,645 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=2197, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2107, PETRI_PLACES=153, PETRI_TRANSITIONS=150} [2021-03-11 22:48:31,646 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 97 predicate places. [2021-03-11 22:48:31,646 INFO L480 AbstractCegarLoop]: Abstraction has has 153 places, 150 transitions, 2107 flow [2021-03-11 22:48:31,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2021-03-11 22:48:31,646 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:48:31,646 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:48:31,646 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-11 22:48:31,646 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:48:31,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:48:31,646 INFO L82 PathProgramCache]: Analyzing trace with hash 525563653, now seen corresponding path program 7 times [2021-03-11 22:48:31,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:48:31,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656338458] [2021-03-11 22:48:31,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:48:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:48:31,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:31,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:31,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:31,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:48:31,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:31,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 22:48:31,721 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 22:48:31,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 22:48:31,733 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 22:48:31,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 22:48:31,750 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 22:48:31,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 22:48:31,772 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 22:48:31,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 22:48:31,801 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 22:48:31,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 22:48:31,835 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 22:48:31,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 22:48:31,878 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 22:48:31,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:48:31,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:48:31,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656338458] [2021-03-11 22:48:31,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:48:31,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 22:48:31,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856387165] [2021-03-11 22:48:31,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 22:48:31,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:48:31,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 22:48:31,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 22:48:31,914 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 22:48:31,915 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 150 transitions, 2107 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:48:31,915 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:48:31,915 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 22:48:31,915 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:48:34,537 INFO L129 PetriNetUnfolder]: 7678/19844 cut-off events. [2021-03-11 22:48:34,537 INFO L130 PetriNetUnfolder]: For 213944/216577 co-relation queries the response was YES. [2021-03-11 22:48:34,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104451 conditions, 19844 events. 7678/19844 cut-off events. For 213944/216577 co-relation queries the response was YES. Maximal size of possible extension queue 2088. Compared 243658 event pairs, 2748 based on Foata normal form. 4/19491 useless extension candidates. Maximal degree in co-relation 104390. Up to 6897 conditions per place. [2021-03-11 22:48:34,969 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 170 selfloop transitions, 63 changer transitions 1/252 dead transitions. [2021-03-11 22:48:34,969 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 252 transitions, 3839 flow [2021-03-11 22:48:34,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 22:48:34,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 22:48:34,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 22:48:34,972 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 22:48:34,972 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 22:48:34,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 22:48:34,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:48:34,973 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 22:48:34,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 22:48:34,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:48:34,976 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:48:34,976 INFO L185 Difference]: Start difference. First operand has 153 places, 150 transitions, 2107 flow. Second operand 11 states and 1253 transitions. [2021-03-11 22:48:34,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 252 transitions, 3839 flow [2021-03-11 22:48:35,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 252 transitions, 3701 flow, removed 67 selfloop flow, removed 9 redundant places. [2021-03-11 22:48:35,951 INFO L241 Difference]: Finished difference. Result has 158 places, 182 transitions, 2775 flow [2021-03-11 22:48:35,952 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=2087, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2775, PETRI_PLACES=158, PETRI_TRANSITIONS=182} [2021-03-11 22:48:35,952 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 102 predicate places. [2021-03-11 22:48:35,952 INFO L480 AbstractCegarLoop]: Abstraction has has 158 places, 182 transitions, 2775 flow [2021-03-11 22:48:35,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:48:35,953 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:48:35,953 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:48:35,953 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-11 22:48:35,953 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:48:35,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:48:35,953 INFO L82 PathProgramCache]: Analyzing trace with hash -737562237, now seen corresponding path program 8 times [2021-03-11 22:48:35,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:48:35,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890035836] [2021-03-11 22:48:35,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:48:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:48:35,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:35,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:35,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:35,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:48:36,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:36,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 22:48:36,010 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 22:48:36,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 22:48:36,024 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 22:48:36,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 22:48:36,038 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 22:48:36,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 22:48:36,057 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 22:48:36,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 22:48:36,081 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 22:48:36,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 22:48:36,111 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 22:48:36,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 22:48:36,150 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 22:48:36,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:48:36,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:48:36,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890035836] [2021-03-11 22:48:36,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:48:36,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 22:48:36,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331546060] [2021-03-11 22:48:36,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 22:48:36,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:48:36,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 22:48:36,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 22:48:36,189 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 22:48:36,189 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 182 transitions, 2775 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:48:36,189 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:48:36,189 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 22:48:36,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:48:40,656 INFO L129 PetriNetUnfolder]: 9339/29663 cut-off events. [2021-03-11 22:48:40,656 INFO L130 PetriNetUnfolder]: For 355660/358377 co-relation queries the response was YES. [2021-03-11 22:48:41,162 INFO L84 FinitePrefix]: Finished finitePrefix Result has 150418 conditions, 29663 events. 9339/29663 cut-off events. For 355660/358377 co-relation queries the response was YES. Maximal size of possible extension queue 3042. Compared 437531 event pairs, 2961 based on Foata normal form. 6/28546 useless extension candidates. Maximal degree in co-relation 150356. Up to 7664 conditions per place. [2021-03-11 22:48:41,302 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 257 selfloop transitions, 123 changer transitions 2/400 dead transitions. [2021-03-11 22:48:41,302 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 400 transitions, 7225 flow [2021-03-11 22:48:41,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 22:48:41,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 22:48:41,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 22:48:41,305 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 22:48:41,305 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 22:48:41,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 22:48:41,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:48:41,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 22:48:41,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 22:48:41,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:48:41,309 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:48:41,309 INFO L185 Difference]: Start difference. First operand has 158 places, 182 transitions, 2775 flow. Second operand 11 states and 1253 transitions. [2021-03-11 22:48:41,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 400 transitions, 7225 flow [2021-03-11 22:48:42,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 400 transitions, 6993 flow, removed 62 selfloop flow, removed 2 redundant places. [2021-03-11 22:48:42,710 INFO L241 Difference]: Finished difference. Result has 174 places, 263 transitions, 4661 flow [2021-03-11 22:48:42,710 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=2673, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=4661, PETRI_PLACES=174, PETRI_TRANSITIONS=263} [2021-03-11 22:48:42,711 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 118 predicate places. [2021-03-11 22:48:42,711 INFO L480 AbstractCegarLoop]: Abstraction has has 174 places, 263 transitions, 4661 flow [2021-03-11 22:48:42,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:48:42,711 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:48:42,711 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:48:42,712 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-11 22:48:42,712 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:48:42,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:48:42,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1433496269, now seen corresponding path program 9 times [2021-03-11 22:48:42,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:48:42,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213892710] [2021-03-11 22:48:42,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:48:42,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:48:42,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:42,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:42,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:42,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:48:42,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:42,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 22:48:42,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:42,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 22:48:42,758 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 22:48:42,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 22:48:42,773 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 22:48:42,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 22:48:42,793 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 22:48:42,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 22:48:42,835 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 22:48:42,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 22:48:42,882 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 22:48:42,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 22:48:42,920 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 22:48:42,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:48:42,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:48:42,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213892710] [2021-03-11 22:48:42,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:48:42,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 22:48:42,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061683483] [2021-03-11 22:48:42,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 22:48:42,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:48:42,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 22:48:42,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 22:48:42,956 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 22:48:42,957 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 263 transitions, 4661 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:48:42,957 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:48:42,957 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 22:48:42,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:48:48,265 WARN L205 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2021-03-11 22:48:51,755 INFO L129 PetriNetUnfolder]: 11632/39445 cut-off events. [2021-03-11 22:48:51,756 INFO L130 PetriNetUnfolder]: For 609931/614706 co-relation queries the response was YES. [2021-03-11 22:48:52,244 INFO L84 FinitePrefix]: Finished finitePrefix Result has 216250 conditions, 39445 events. 11632/39445 cut-off events. For 609931/614706 co-relation queries the response was YES. Maximal size of possible extension queue 4451. Compared 620348 event pairs, 3858 based on Foata normal form. 3/38259 useless extension candidates. Maximal degree in co-relation 216180. Up to 10973 conditions per place. [2021-03-11 22:48:52,490 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 310 selfloop transitions, 150 changer transitions 1/479 dead transitions. [2021-03-11 22:48:52,490 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 479 transitions, 9397 flow [2021-03-11 22:48:52,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 22:48:52,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 22:48:52,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 22:48:52,492 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 22:48:52,492 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 22:48:52,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 22:48:52,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:48:52,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 22:48:52,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 22:48:52,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:48:52,495 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:48:52,495 INFO L185 Difference]: Start difference. First operand has 174 places, 263 transitions, 4661 flow. Second operand 11 states and 1253 transitions. [2021-03-11 22:48:52,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 479 transitions, 9397 flow [2021-03-11 22:48:54,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 479 transitions, 9238 flow, removed 54 selfloop flow, removed 3 redundant places. [2021-03-11 22:48:54,365 INFO L241 Difference]: Finished difference. Result has 189 places, 333 transitions, 6637 flow [2021-03-11 22:48:54,366 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=4570, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=6637, PETRI_PLACES=189, PETRI_TRANSITIONS=333} [2021-03-11 22:48:54,366 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 133 predicate places. [2021-03-11 22:48:54,366 INFO L480 AbstractCegarLoop]: Abstraction has has 189 places, 333 transitions, 6637 flow [2021-03-11 22:48:54,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:48:54,366 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:48:54,366 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:48:54,366 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-11 22:48:54,366 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:48:54,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:48:54,367 INFO L82 PathProgramCache]: Analyzing trace with hash 701960021, now seen corresponding path program 10 times [2021-03-11 22:48:54,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:48:54,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315470305] [2021-03-11 22:48:54,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:48:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:48:54,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:54,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:54,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:54,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:48:54,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:54,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 22:48:54,398 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 22:48:54,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 22:48:54,408 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 22:48:54,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 22:48:54,432 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 22:48:54,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 22:48:54,461 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 22:48:54,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 22:48:54,498 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 22:48:54,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 22:48:54,547 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 22:48:54,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 22:48:54,592 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 22:48:54,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:48:54,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:48:54,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315470305] [2021-03-11 22:48:54,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:48:54,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 22:48:54,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322527414] [2021-03-11 22:48:54,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 22:48:54,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:48:54,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 22:48:54,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 22:48:54,626 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 22:48:54,626 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 333 transitions, 6637 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:48:54,626 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:48:54,626 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 22:48:54,626 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:49:03,594 INFO L129 PetriNetUnfolder]: 12285/39665 cut-off events. [2021-03-11 22:49:03,595 INFO L130 PetriNetUnfolder]: For 815884/822675 co-relation queries the response was YES. [2021-03-11 22:49:04,113 INFO L84 FinitePrefix]: Finished finitePrefix Result has 247857 conditions, 39665 events. 12285/39665 cut-off events. For 815884/822675 co-relation queries the response was YES. Maximal size of possible extension queue 4178. Compared 609902 event pairs, 6599 based on Foata normal form. 9/37895 useless extension candidates. Maximal degree in co-relation 247780. Up to 10920 conditions per place. [2021-03-11 22:49:04,269 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 340 selfloop transitions, 187 changer transitions 1/546 dead transitions. [2021-03-11 22:49:04,270 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 546 transitions, 12268 flow [2021-03-11 22:49:04,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 22:49:04,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 22:49:04,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 22:49:04,271 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 22:49:04,271 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 22:49:04,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 22:49:04,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:49:04,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 22:49:04,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 22:49:04,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:49:04,274 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:49:04,274 INFO L185 Difference]: Start difference. First operand has 189 places, 333 transitions, 6637 flow. Second operand 11 states and 1253 transitions. [2021-03-11 22:49:04,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 546 transitions, 12268 flow [2021-03-11 22:49:07,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 546 transitions, 11824 flow, removed 181 selfloop flow, removed 2 redundant places. [2021-03-11 22:49:07,900 INFO L241 Difference]: Finished difference. Result has 205 places, 401 transitions, 8817 flow [2021-03-11 22:49:07,900 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=6432, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=119, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=8817, PETRI_PLACES=205, PETRI_TRANSITIONS=401} [2021-03-11 22:49:07,900 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 149 predicate places. [2021-03-11 22:49:07,900 INFO L480 AbstractCegarLoop]: Abstraction has has 205 places, 401 transitions, 8817 flow [2021-03-11 22:49:07,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:49:07,900 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:49:07,900 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:49:07,901 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-11 22:49:07,901 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:49:07,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:49:07,901 INFO L82 PathProgramCache]: Analyzing trace with hash -160641509, now seen corresponding path program 11 times [2021-03-11 22:49:07,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:49:07,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216854518] [2021-03-11 22:49:07,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:49:07,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:49:07,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:49:07,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:49:07,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:49:07,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:49:07,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:49:07,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 22:49:07,946 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 22:49:07,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 22:49:07,959 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 22:49:07,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 22:49:07,972 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 22:49:07,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 22:49:07,990 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 22:49:07,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 22:49:08,027 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 22:49:08,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 22:49:08,069 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 22:49:08,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 22:49:08,108 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 22:49:08,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:49:08,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:49:08,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216854518] [2021-03-11 22:49:08,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:49:08,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 22:49:08,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880445962] [2021-03-11 22:49:08,140 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 22:49:08,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:49:08,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 22:49:08,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 22:49:08,141 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 22:49:08,142 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 401 transitions, 8817 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:49:08,142 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:49:08,142 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 22:49:08,142 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:49:18,722 INFO L129 PetriNetUnfolder]: 12610/44436 cut-off events. [2021-03-11 22:49:18,722 INFO L130 PetriNetUnfolder]: For 994965/1005425 co-relation queries the response was YES. [2021-03-11 22:49:19,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 280417 conditions, 44436 events. 12610/44436 cut-off events. For 994965/1005425 co-relation queries the response was YES. Maximal size of possible extension queue 5074. Compared 721064 event pairs, 5660 based on Foata normal form. 28/43087 useless extension candidates. Maximal degree in co-relation 280332. Up to 12152 conditions per place. [2021-03-11 22:49:19,539 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 262 selfloop transitions, 250 changer transitions 1/531 dead transitions. [2021-03-11 22:49:19,539 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 531 transitions, 12430 flow [2021-03-11 22:49:19,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 22:49:19,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 22:49:19,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 22:49:19,542 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 22:49:19,542 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 22:49:19,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 22:49:19,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:49:19,542 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 22:49:19,543 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 22:49:19,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:49:19,544 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:49:19,544 INFO L185 Difference]: Start difference. First operand has 205 places, 401 transitions, 8817 flow. Second operand 11 states and 1253 transitions. [2021-03-11 22:49:19,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 531 transitions, 12430 flow [2021-03-11 22:49:23,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 531 transitions, 12066 flow, removed 113 selfloop flow, removed 2 redundant places. [2021-03-11 22:49:23,607 INFO L241 Difference]: Finished difference. Result has 221 places, 462 transitions, 10868 flow [2021-03-11 22:49:23,608 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=8596, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=189, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=10868, PETRI_PLACES=221, PETRI_TRANSITIONS=462} [2021-03-11 22:49:23,608 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 165 predicate places. [2021-03-11 22:49:23,608 INFO L480 AbstractCegarLoop]: Abstraction has has 221 places, 462 transitions, 10868 flow [2021-03-11 22:49:23,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:49:23,608 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:49:23,608 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:49:23,608 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-11 22:49:23,608 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:49:23,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:49:23,609 INFO L82 PathProgramCache]: Analyzing trace with hash -716714565, now seen corresponding path program 12 times [2021-03-11 22:49:23,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:49:23,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835140315] [2021-03-11 22:49:23,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:49:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:49:23,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:49:23,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:49:23,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:49:23,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:49:23,632 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 22:49:23,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 22:49:23,639 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 22:49:23,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 22:49:23,648 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 22:49:23,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 22:49:23,659 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 22:49:23,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 22:49:23,692 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 22:49:23,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 22:49:23,727 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 22:49:23,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 22:49:23,766 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 22:49:23,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 22:49:23,800 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 22:49:23,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:49:23,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:49:23,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835140315] [2021-03-11 22:49:23,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:49:23,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 22:49:23,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605733980] [2021-03-11 22:49:23,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 22:49:23,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:49:23,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 22:49:23,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 22:49:23,833 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 22:49:23,834 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 462 transitions, 10868 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:49:23,834 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:49:23,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 22:49:23,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:49:37,146 INFO L129 PetriNetUnfolder]: 13738/45275 cut-off events. [2021-03-11 22:49:37,147 INFO L130 PetriNetUnfolder]: For 1301207/1318383 co-relation queries the response was YES. [2021-03-11 22:49:37,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 326158 conditions, 45275 events. 13738/45275 cut-off events. For 1301207/1318383 co-relation queries the response was YES. Maximal size of possible extension queue 5008. Compared 713966 event pairs, 5983 based on Foata normal form. 22/43972 useless extension candidates. Maximal degree in co-relation 326065. Up to 14765 conditions per place. [2021-03-11 22:49:38,185 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 280 selfloop transitions, 293 changer transitions 1/592 dead transitions. [2021-03-11 22:49:38,186 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 592 transitions, 15032 flow [2021-03-11 22:49:38,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 22:49:38,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 22:49:38,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 22:49:38,187 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 22:49:38,187 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 22:49:38,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 22:49:38,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:49:38,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 22:49:38,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 22:49:38,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:49:38,189 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:49:38,189 INFO L185 Difference]: Start difference. First operand has 221 places, 462 transitions, 10868 flow. Second operand 11 states and 1253 transitions. [2021-03-11 22:49:38,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 592 transitions, 15032 flow [2021-03-11 22:49:45,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 592 transitions, 14656 flow, removed 90 selfloop flow, removed 2 redundant places. [2021-03-11 22:49:45,416 INFO L241 Difference]: Finished difference. Result has 237 places, 530 transitions, 13590 flow [2021-03-11 22:49:45,416 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=10562, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=225, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=13590, PETRI_PLACES=237, PETRI_TRANSITIONS=530} [2021-03-11 22:49:45,416 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 181 predicate places. [2021-03-11 22:49:45,416 INFO L480 AbstractCegarLoop]: Abstraction has has 237 places, 530 transitions, 13590 flow [2021-03-11 22:49:45,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:49:45,417 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:49:45,417 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:49:45,417 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-11 22:49:45,417 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:49:45,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:49:45,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1651063377, now seen corresponding path program 13 times [2021-03-11 22:49:45,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:49:45,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508790614] [2021-03-11 22:49:45,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:49:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:49:45,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:49:45,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:49:45,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:49:45,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:49:45,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:49:45,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 22:49:45,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:49:45,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 22:49:45,454 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-11 22:49:45,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 22:49:45,475 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 22:49:45,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 22:49:45,505 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 22:49:45,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 22:49:45,544 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 22:49:45,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 22:49:45,573 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 22:49:45,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 22:49:45,608 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 22:49:45,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:49:45,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:49:45,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508790614] [2021-03-11 22:49:45,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:49:45,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 22:49:45,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484690681] [2021-03-11 22:49:45,641 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 22:49:45,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:49:45,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 22:49:45,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 22:49:45,642 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 22:49:45,642 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 530 transitions, 13590 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:49:45,642 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:49:45,643 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 22:49:45,643 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:50:01,772 INFO L129 PetriNetUnfolder]: 14353/50563 cut-off events. [2021-03-11 22:50:01,772 INFO L130 PetriNetUnfolder]: For 1693097/1719529 co-relation queries the response was YES. [2021-03-11 22:50:02,690 INFO L84 FinitePrefix]: Finished finitePrefix Result has 379677 conditions, 50563 events. 14353/50563 cut-off events. For 1693097/1719529 co-relation queries the response was YES. Maximal size of possible extension queue 5524. Compared 833422 event pairs, 6244 based on Foata normal form. 22/49165 useless extension candidates. Maximal degree in co-relation 379576. Up to 13267 conditions per place. [2021-03-11 22:50:02,916 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 502 selfloop transitions, 283 changer transitions 3/806 dead transitions. [2021-03-11 22:50:02,917 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 806 transitions, 21505 flow [2021-03-11 22:50:02,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 22:50:02,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 22:50:02,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 22:50:02,918 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 22:50:02,918 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 22:50:02,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 22:50:02,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:50:02,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 22:50:02,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 22:50:02,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:50:02,921 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:50:02,921 INFO L185 Difference]: Start difference. First operand has 237 places, 530 transitions, 13590 flow. Second operand 11 states and 1253 transitions. [2021-03-11 22:50:02,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 806 transitions, 21505 flow [2021-03-11 22:50:14,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 806 transitions, 21058 flow, removed 100 selfloop flow, removed 2 redundant places. [2021-03-11 22:50:14,614 INFO L241 Difference]: Finished difference. Result has 253 places, 587 transitions, 15570 flow [2021-03-11 22:50:14,614 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=13318, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=226, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=15570, PETRI_PLACES=253, PETRI_TRANSITIONS=587} [2021-03-11 22:50:14,614 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 197 predicate places. [2021-03-11 22:50:14,614 INFO L480 AbstractCegarLoop]: Abstraction has has 253 places, 587 transitions, 15570 flow [2021-03-11 22:50:14,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:50:14,614 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:50:14,615 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:50:14,615 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-11 22:50:14,615 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:50:14,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:50:14,615 INFO L82 PathProgramCache]: Analyzing trace with hash 643931467, now seen corresponding path program 14 times [2021-03-11 22:50:14,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:50:14,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269950558] [2021-03-11 22:50:14,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:50:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:50:14,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:50:14,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:50:14,631 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:50:14,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:50:14,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:50:14,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 22:50:14,640 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 22:50:14,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 22:50:14,650 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 22:50:14,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 22:50:14,663 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 22:50:14,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 22:50:14,680 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 22:50:14,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 22:50:14,702 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-11 22:50:14,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-11 22:50:14,732 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 22:50:14,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 22:50:14,767 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 22:50:14,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:50:14,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:50:14,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269950558] [2021-03-11 22:50:14,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:50:14,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 22:50:14,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789422953] [2021-03-11 22:50:14,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 22:50:14,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:50:14,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 22:50:14,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 22:50:14,799 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 22:50:14,800 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 587 transitions, 15570 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:50:14,800 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:50:14,800 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 22:50:14,800 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:50:37,244 INFO L129 PetriNetUnfolder]: 15372/58818 cut-off events. [2021-03-11 22:50:37,244 INFO L130 PetriNetUnfolder]: For 2086576/2119702 co-relation queries the response was YES. [2021-03-11 22:50:38,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 444520 conditions, 58818 events. 15372/58818 cut-off events. For 2086576/2119702 co-relation queries the response was YES. Maximal size of possible extension queue 6450. Compared 1020246 event pairs, 6719 based on Foata normal form. 40/56821 useless extension candidates. Maximal degree in co-relation 444411. Up to 15495 conditions per place. [2021-03-11 22:50:38,676 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 439 selfloop transitions, 384 changer transitions 1/842 dead transitions. [2021-03-11 22:50:38,676 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 842 transitions, 22752 flow [2021-03-11 22:50:38,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 22:50:38,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 22:50:38,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 22:50:38,678 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 22:50:38,678 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 22:50:38,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 22:50:38,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:50:38,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 22:50:38,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 22:50:38,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:50:38,681 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:50:38,681 INFO L185 Difference]: Start difference. First operand has 253 places, 587 transitions, 15570 flow. Second operand 11 states and 1253 transitions. [2021-03-11 22:50:38,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 842 transitions, 22752 flow [2021-03-11 22:50:58,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 842 transitions, 22171 flow, removed 192 selfloop flow, removed 3 redundant places. [2021-03-11 22:50:58,094 INFO L241 Difference]: Finished difference. Result has 268 places, 710 transitions, 19535 flow [2021-03-11 22:50:58,095 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=15073, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=587, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=261, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=19535, PETRI_PLACES=268, PETRI_TRANSITIONS=710} [2021-03-11 22:50:58,095 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 212 predicate places. [2021-03-11 22:50:58,095 INFO L480 AbstractCegarLoop]: Abstraction has has 268 places, 710 transitions, 19535 flow [2021-03-11 22:50:58,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:50:58,095 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:50:58,095 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:50:58,095 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-11 22:50:58,095 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:50:58,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:50:58,095 INFO L82 PathProgramCache]: Analyzing trace with hash -2044265333, now seen corresponding path program 15 times [2021-03-11 22:50:58,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:50:58,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15764695] [2021-03-11 22:50:58,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:50:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:50:58,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:50:58,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:50:58,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:50:58,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:50:58,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:50:58,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 22:50:58,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:50:58,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 22:50:58,128 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 22:50:58,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 22:50:58,140 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 22:50:58,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 22:50:58,156 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 22:50:58,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 22:50:58,176 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 22:50:58,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 22:50:58,218 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 22:50:58,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 22:50:58,251 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 22:50:58,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:50:58,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:50:58,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15764695] [2021-03-11 22:50:58,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:50:58,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 22:50:58,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414442570] [2021-03-11 22:50:58,281 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 22:50:58,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:50:58,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 22:50:58,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 22:50:58,282 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 22:50:58,283 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 710 transitions, 19535 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:50:58,283 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:50:58,283 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 22:50:58,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:51:21,959 INFO L129 PetriNetUnfolder]: 15505/58876 cut-off events. [2021-03-11 22:51:21,959 INFO L130 PetriNetUnfolder]: For 2163906/2195815 co-relation queries the response was YES. [2021-03-11 22:51:23,108 INFO L84 FinitePrefix]: Finished finitePrefix Result has 453815 conditions, 58876 events. 15505/58876 cut-off events. For 2163906/2195815 co-relation queries the response was YES. Maximal size of possible extension queue 6406. Compared 1022164 event pairs, 6639 based on Foata normal form. 40/56669 useless extension candidates. Maximal degree in co-relation 453699. Up to 16108 conditions per place. [2021-03-11 22:51:23,358 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 764 selfloop transitions, 373 changer transitions 2/1157 dead transitions. [2021-03-11 22:51:23,358 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 1157 transitions, 33375 flow [2021-03-11 22:51:23,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 22:51:23,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 22:51:23,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 22:51:23,360 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 22:51:23,360 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 22:51:23,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 22:51:23,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:51:23,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 22:51:23,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 22:51:23,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:51:23,362 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:51:23,362 INFO L185 Difference]: Start difference. First operand has 268 places, 710 transitions, 19535 flow. Second operand 11 states and 1253 transitions. [2021-03-11 22:51:23,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 1157 transitions, 33375 flow [2021-03-11 22:51:43,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 1157 transitions, 32267 flow, removed 456 selfloop flow, removed 2 redundant places. [2021-03-11 22:51:43,491 INFO L241 Difference]: Finished difference. Result has 284 places, 839 transitions, 23847 flow [2021-03-11 22:51:43,492 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=18947, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=710, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=244, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=23847, PETRI_PLACES=284, PETRI_TRANSITIONS=839} [2021-03-11 22:51:43,492 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 228 predicate places. [2021-03-11 22:51:43,492 INFO L480 AbstractCegarLoop]: Abstraction has has 284 places, 839 transitions, 23847 flow [2021-03-11 22:51:43,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:51:43,492 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:51:43,492 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:51:43,492 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-11 22:51:43,492 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:51:43,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:51:43,493 INFO L82 PathProgramCache]: Analyzing trace with hash 2029158721, now seen corresponding path program 16 times [2021-03-11 22:51:43,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:51:43,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725411130] [2021-03-11 22:51:43,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:51:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:51:43,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:51:43,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:51:43,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:51:43,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:51:43,534 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 22:51:43,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 22:51:43,541 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 22:51:43,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 22:51:43,551 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 22:51:43,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 22:51:43,566 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 22:51:43,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 22:51:43,583 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 22:51:43,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 22:51:43,605 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 22:51:43,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 22:51:43,663 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 22:51:43,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 22:51:43,699 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 22:51:43,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:51:43,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:51:43,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725411130] [2021-03-11 22:51:43,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:51:43,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 22:51:43,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6516203] [2021-03-11 22:51:43,743 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 22:51:43,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:51:43,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 22:51:43,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 22:51:43,744 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 22:51:43,744 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 839 transitions, 23847 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:51:43,744 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:51:43,744 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 22:51:43,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:52:12,670 INFO L129 PetriNetUnfolder]: 15482/60373 cut-off events. [2021-03-11 22:52:12,670 INFO L130 PetriNetUnfolder]: For 2417103/2457806 co-relation queries the response was YES. [2021-03-11 22:52:14,038 INFO L84 FinitePrefix]: Finished finitePrefix Result has 480691 conditions, 60373 events. 15482/60373 cut-off events. For 2417103/2457806 co-relation queries the response was YES. Maximal size of possible extension queue 6831. Compared 1053738 event pairs, 7836 based on Foata normal form. 62/58608 useless extension candidates. Maximal degree in co-relation 480567. Up to 13940 conditions per place. [2021-03-11 22:52:14,303 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 479 selfloop transitions, 559 changer transitions 2/1058 dead transitions. [2021-03-11 22:52:14,303 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 1058 transitions, 31003 flow [2021-03-11 22:52:14,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 22:52:14,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 22:52:14,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 22:52:14,305 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 22:52:14,305 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 22:52:14,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 22:52:14,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:52:14,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 22:52:14,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 22:52:14,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:52:14,307 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:52:14,307 INFO L185 Difference]: Start difference. First operand has 284 places, 839 transitions, 23847 flow. Second operand 11 states and 1253 transitions. [2021-03-11 22:52:14,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 1058 transitions, 31003 flow [2021-03-11 22:52:38,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 1058 transitions, 30063 flow, removed 372 selfloop flow, removed 2 redundant places. [2021-03-11 22:52:38,907 INFO L241 Difference]: Finished difference. Result has 300 places, 889 transitions, 26419 flow [2021-03-11 22:52:38,907 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=23069, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=839, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=509, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=26419, PETRI_PLACES=300, PETRI_TRANSITIONS=889} [2021-03-11 22:52:38,907 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 244 predicate places. [2021-03-11 22:52:38,907 INFO L480 AbstractCegarLoop]: Abstraction has has 300 places, 889 transitions, 26419 flow [2021-03-11 22:52:38,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:52:38,908 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:52:38,908 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:52:38,908 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-11 22:52:38,908 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:52:38,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:52:38,908 INFO L82 PathProgramCache]: Analyzing trace with hash -630302939, now seen corresponding path program 17 times [2021-03-11 22:52:38,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:52:38,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575148072] [2021-03-11 22:52:38,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:52:38,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:52:38,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:52:38,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:52:38,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:52:38,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:52:38,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:52:38,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 22:52:38,931 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 22:52:38,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 22:52:38,941 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 22:52:38,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 22:52:38,954 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 22:52:38,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 22:52:38,972 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 22:52:38,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 22:52:38,996 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 22:52:38,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 22:52:39,032 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 22:52:39,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 22:52:39,068 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 22:52:39,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:52:39,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:52:39,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575148072] [2021-03-11 22:52:39,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:52:39,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 22:52:39,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160764060] [2021-03-11 22:52:39,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 22:52:39,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:52:39,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 22:52:39,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 22:52:39,101 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 22:52:39,102 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 889 transitions, 26419 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:52:39,102 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:52:39,102 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 22:52:39,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:53:12,041 INFO L129 PetriNetUnfolder]: 16662/70860 cut-off events. [2021-03-11 22:53:12,042 INFO L130 PetriNetUnfolder]: For 3100228/3140699 co-relation queries the response was YES. [2021-03-11 22:53:13,743 INFO L84 FinitePrefix]: Finished finitePrefix Result has 571792 conditions, 70860 events. 16662/70860 cut-off events. For 3100228/3140699 co-relation queries the response was YES. Maximal size of possible extension queue 7967. Compared 1303519 event pairs, 7186 based on Foata normal form. 87/68162 useless extension candidates. Maximal degree in co-relation 571660. Up to 16228 conditions per place. [2021-03-11 22:53:14,045 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 820 selfloop transitions, 525 changer transitions 2/1365 dead transitions. [2021-03-11 22:53:14,045 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 1365 transitions, 42271 flow [2021-03-11 22:53:14,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 22:53:14,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 22:53:14,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 22:53:14,046 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 22:53:14,046 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 22:53:14,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 22:53:14,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:53:14,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 22:53:14,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 22:53:14,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:53:14,048 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:53:14,048 INFO L185 Difference]: Start difference. First operand has 300 places, 889 transitions, 26419 flow. Second operand 11 states and 1253 transitions. [2021-03-11 22:53:14,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 1365 transitions, 42271 flow [2021-03-11 22:53:58,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 1365 transitions, 41245 flow, removed 414 selfloop flow, removed 3 redundant places. [2021-03-11 22:53:58,222 INFO L241 Difference]: Finished difference. Result has 314 places, 1073 transitions, 33477 flow [2021-03-11 22:53:58,222 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=25921, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=889, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=341, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=33477, PETRI_PLACES=314, PETRI_TRANSITIONS=1073} [2021-03-11 22:53:58,223 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 258 predicate places. [2021-03-11 22:53:58,223 INFO L480 AbstractCegarLoop]: Abstraction has has 314 places, 1073 transitions, 33477 flow [2021-03-11 22:53:58,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:53:58,223 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:53:58,223 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:53:58,223 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-11 22:53:58,223 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:53:58,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:53:58,223 INFO L82 PathProgramCache]: Analyzing trace with hash 2132109963, now seen corresponding path program 18 times [2021-03-11 22:53:58,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:53:58,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37124822] [2021-03-11 22:53:58,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:53:58,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:53:58,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:53:58,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:53:58,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:53:58,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:53:58,243 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 22:53:58,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 22:53:58,250 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 22:53:58,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 22:53:58,261 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 22:53:58,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 22:53:58,274 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 22:53:58,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 22:53:58,371 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 22:53:58,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 22:53:58,410 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 22:53:58,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 22:53:58,455 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 22:53:58,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 22:53:58,497 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 22:53:58,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:53:58,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:53:58,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37124822] [2021-03-11 22:53:58,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:53:58,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 22:53:58,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143840316] [2021-03-11 22:53:58,528 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 22:53:58,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:53:58,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 22:53:58,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 22:53:58,528 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 22:53:58,529 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 1073 transitions, 33477 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:53:58,529 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:53:58,529 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 22:53:58,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:54:35,956 INFO L129 PetriNetUnfolder]: 16774/74595 cut-off events. [2021-03-11 22:54:35,956 INFO L130 PetriNetUnfolder]: For 3266752/3311774 co-relation queries the response was YES. [2021-03-11 22:54:37,825 INFO L84 FinitePrefix]: Finished finitePrefix Result has 591564 conditions, 74595 events. 16774/74595 cut-off events. For 3266752/3311774 co-relation queries the response was YES. Maximal size of possible extension queue 8682. Compared 1393752 event pairs, 9057 based on Foata normal form. 75/72102 useless extension candidates. Maximal degree in co-relation 591426. Up to 17087 conditions per place. [2021-03-11 22:54:38,130 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 490 selfloop transitions, 754 changer transitions 2/1264 dead transitions. [2021-03-11 22:54:38,130 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 1264 transitions, 40807 flow [2021-03-11 22:54:38,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 22:54:38,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 22:54:38,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 22:54:38,131 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 22:54:38,131 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 22:54:38,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 22:54:38,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:54:38,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 22:54:38,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 22:54:38,133 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:54:38,134 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:54:38,134 INFO L185 Difference]: Start difference. First operand has 314 places, 1073 transitions, 33477 flow. Second operand 11 states and 1253 transitions. [2021-03-11 22:54:38,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 1264 transitions, 40807 flow [2021-03-11 22:55:19,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 1264 transitions, 39498 flow, removed 420 selfloop flow, removed 4 redundant places. [2021-03-11 22:55:19,646 INFO L241 Difference]: Finished difference. Result has 326 places, 1139 transitions, 36003 flow [2021-03-11 22:55:19,647 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=32458, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1073, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=688, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=36003, PETRI_PLACES=326, PETRI_TRANSITIONS=1139} [2021-03-11 22:55:19,647 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 270 predicate places. [2021-03-11 22:55:19,647 INFO L480 AbstractCegarLoop]: Abstraction has has 326 places, 1139 transitions, 36003 flow [2021-03-11 22:55:19,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:55:19,647 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:55:19,648 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:55:19,648 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-11 22:55:19,648 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:55:19,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:55:19,648 INFO L82 PathProgramCache]: Analyzing trace with hash -371969643, now seen corresponding path program 19 times [2021-03-11 22:55:19,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:55:19,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700386866] [2021-03-11 22:55:19,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:55:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:55:19,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:55:19,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:55:19,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:55:19,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:55:19,670 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 22:55:19,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 22:55:19,676 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 22:55:19,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 22:55:19,690 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 22:55:19,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 22:55:19,704 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 22:55:19,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 22:55:19,727 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 22:55:19,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 22:55:19,755 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 22:55:19,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 22:55:19,782 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-11 22:55:19,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-11 22:55:19,815 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 22:55:19,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:55:19,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:55:19,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700386866] [2021-03-11 22:55:19,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:55:19,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 22:55:19,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097296527] [2021-03-11 22:55:19,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 22:55:19,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:55:19,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 22:55:19,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 22:55:19,847 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 22:55:19,847 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 1139 transitions, 36003 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:55:19,847 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:55:19,847 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 22:55:19,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:56:02,439 INFO L129 PetriNetUnfolder]: 16835/80311 cut-off events. [2021-03-11 22:56:02,439 INFO L130 PetriNetUnfolder]: For 3590214/3635483 co-relation queries the response was YES. [2021-03-11 22:56:04,569 INFO L84 FinitePrefix]: Finished finitePrefix Result has 630922 conditions, 80311 events. 16835/80311 cut-off events. For 3590214/3635483 co-relation queries the response was YES. Maximal size of possible extension queue 9239. Compared 1546773 event pairs, 9139 based on Foata normal form. 76/77241 useless extension candidates. Maximal degree in co-relation 630779. Up to 16959 conditions per place. [2021-03-11 22:56:04,890 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 593 selfloop transitions, 778 changer transitions 2/1391 dead transitions. [2021-03-11 22:56:04,890 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 1391 transitions, 45067 flow [2021-03-11 22:56:04,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 22:56:04,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 22:56:04,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 22:56:04,891 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 22:56:04,891 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 22:56:04,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 22:56:04,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:56:04,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 22:56:04,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 22:56:04,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:56:04,893 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:56:04,893 INFO L185 Difference]: Start difference. First operand has 326 places, 1139 transitions, 36003 flow. Second operand 11 states and 1253 transitions. [2021-03-11 22:56:04,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 1391 transitions, 45067 flow [2021-03-11 22:56:50,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 1391 transitions, 43723 flow, removed 263 selfloop flow, removed 4 redundant places. [2021-03-11 22:56:50,957 INFO L241 Difference]: Finished difference. Result has 339 places, 1263 transitions, 40596 flow [2021-03-11 22:56:50,958 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=34829, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=654, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=40596, PETRI_PLACES=339, PETRI_TRANSITIONS=1263} [2021-03-11 22:56:50,958 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 283 predicate places. [2021-03-11 22:56:50,959 INFO L480 AbstractCegarLoop]: Abstraction has has 339 places, 1263 transitions, 40596 flow [2021-03-11 22:56:50,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:56:50,959 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:56:50,959 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:56:50,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-11 22:56:50,959 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:56:50,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:56:50,959 INFO L82 PathProgramCache]: Analyzing trace with hash 301323605, now seen corresponding path program 20 times [2021-03-11 22:56:50,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:56:50,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307231229] [2021-03-11 22:56:50,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:56:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:56:50,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:56:50,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:56:50,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:56:50,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:56:50,976 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 22:56:50,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 22:56:50,983 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 22:56:50,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 22:56:50,996 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 22:56:50,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 22:56:51,013 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 22:56:51,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 22:56:51,030 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 22:56:51,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 22:56:51,116 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 22:56:51,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 22:56:51,160 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 22:56:51,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 22:56:51,195 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 22:56:51,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:56:51,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:56:51,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307231229] [2021-03-11 22:56:51,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:56:51,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 22:56:51,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471756360] [2021-03-11 22:56:51,228 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 22:56:51,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:56:51,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 22:56:51,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 22:56:51,229 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 22:56:51,229 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 1263 transitions, 40596 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:56:51,229 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:56:51,229 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 22:56:51,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:57:35,552 INFO L129 PetriNetUnfolder]: 16764/80522 cut-off events. [2021-03-11 22:57:35,553 INFO L130 PetriNetUnfolder]: For 3827169/3872647 co-relation queries the response was YES. [2021-03-11 22:57:37,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 651503 conditions, 80522 events. 16764/80522 cut-off events. For 3827169/3872647 co-relation queries the response was YES. Maximal size of possible extension queue 9210. Compared 1557012 event pairs, 8935 based on Foata normal form. 102/77454 useless extension candidates. Maximal degree in co-relation 651354. Up to 18229 conditions per place. [2021-03-11 22:57:38,099 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 837 selfloop transitions, 771 changer transitions 2/1628 dead transitions. [2021-03-11 22:57:38,099 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 1628 transitions, 54204 flow [2021-03-11 22:57:38,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 22:57:38,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 22:57:38,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 22:57:38,100 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 22:57:38,100 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 22:57:38,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 22:57:38,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:57:38,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 22:57:38,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 22:57:38,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:57:38,102 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:57:38,102 INFO L185 Difference]: Start difference. First operand has 339 places, 1263 transitions, 40596 flow. Second operand 11 states and 1253 transitions. [2021-03-11 22:57:38,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 1628 transitions, 54204 flow [2021-03-11 22:58:32,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 1628 transitions, 52461 flow, removed 463 selfloop flow, removed 4 redundant places. [2021-03-11 22:58:32,102 INFO L241 Difference]: Finished difference. Result has 352 places, 1353 transitions, 44399 flow [2021-03-11 22:58:32,103 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=39217, PETRI_DIFFERENCE_MINUEND_PLACES=334, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=681, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=44399, PETRI_PLACES=352, PETRI_TRANSITIONS=1353} [2021-03-11 22:58:32,103 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 296 predicate places. [2021-03-11 22:58:32,103 INFO L480 AbstractCegarLoop]: Abstraction has has 352 places, 1353 transitions, 44399 flow [2021-03-11 22:58:32,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:58:32,104 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:58:32,104 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 22:58:32,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-11 22:58:32,104 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 22:58:32,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:58:32,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1750526055, now seen corresponding path program 21 times [2021-03-11 22:58:32,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:58:32,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166111519] [2021-03-11 22:58:32,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:58:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:58:32,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:58:32,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:58:32,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:58:32,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:58:32,121 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 22:58:32,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 22:58:32,127 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 22:58:32,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 22:58:32,136 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 22:58:32,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 22:58:32,150 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 22:58:32,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 22:58:32,167 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 22:58:32,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 22:58:32,193 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-11 22:58:32,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 22:58:32,242 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 22:58:32,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 22:58:32,280 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 22:58:32,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:58:32,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:58:32,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166111519] [2021-03-11 22:58:32,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:58:32,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 22:58:32,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607527487] [2021-03-11 22:58:32,311 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 22:58:32,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:58:32,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 22:58:32,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 22:58:32,311 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 22:58:32,312 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 1353 transitions, 44399 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 22:58:32,312 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:58:32,312 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 22:58:32,312 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:59:19,161 INFO L129 PetriNetUnfolder]: 16834/84256 cut-off events. [2021-03-11 22:59:19,162 INFO L130 PetriNetUnfolder]: For 4132648/4181337 co-relation queries the response was YES. [2021-03-11 22:59:21,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 675267 conditions, 84256 events. 16834/84256 cut-off events. For 4132648/4181337 co-relation queries the response was YES. Maximal size of possible extension queue 9707. Compared 1658778 event pairs, 8211 based on Foata normal form. 141/80415 useless extension candidates. Maximal degree in co-relation 675112. Up to 14323 conditions per place. [2021-03-11 22:59:21,945 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 594 selfloop transitions, 989 changer transitions 1/1602 dead transitions. [2021-03-11 22:59:21,945 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 1602 transitions, 54261 flow [2021-03-11 22:59:21,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 22:59:21,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 22:59:21,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 22:59:21,946 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 22:59:21,947 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 22:59:21,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 22:59:21,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:59:21,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 22:59:21,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 22:59:21,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:59:21,949 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 22:59:21,949 INFO L185 Difference]: Start difference. First operand has 352 places, 1353 transitions, 44399 flow. Second operand 11 states and 1253 transitions. [2021-03-11 22:59:21,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 1602 transitions, 54261 flow [2021-03-11 23:00:23,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 1602 transitions, 52335 flow, removed 555 selfloop flow, removed 3 redundant places. [2021-03-11 23:00:23,641 INFO L241 Difference]: Finished difference. Result has 366 places, 1512 transitions, 50497 flow [2021-03-11 23:00:23,642 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=42789, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=830, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=50497, PETRI_PLACES=366, PETRI_TRANSITIONS=1512} [2021-03-11 23:00:23,642 INFO L335 CegarLoopForPetriNet]: 56 programPoint places, 310 predicate places. [2021-03-11 23:00:23,642 INFO L480 AbstractCegarLoop]: Abstraction has has 366 places, 1512 transitions, 50497 flow [2021-03-11 23:00:23,642 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 23:00:23,642 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 23:00:23,642 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 23:00:23,642 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-11 23:00:23,642 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-03-11 23:00:23,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 23:00:23,642 INFO L82 PathProgramCache]: Analyzing trace with hash -207664697, now seen corresponding path program 22 times [2021-03-11 23:00:23,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 23:00:23,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730835159] [2021-03-11 23:00:23,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 23:00:23,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 23:00:23,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 23:00:23,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 23:00:23,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 23:00:23,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 23:00:23,679 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 23:00:23,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 23:00:23,685 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 23:00:23,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 23:00:23,695 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 23:00:23,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 23:00:23,708 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 23:00:23,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 23:00:23,726 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-11 23:00:23,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 23:00:23,764 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 23:00:23,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 23:00:23,805 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 23:00:23,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 23:00:23,844 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-03-11 23:00:23,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 23:00:23,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 23:00:23,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730835159] [2021-03-11 23:00:23,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 23:00:23,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 23:00:23,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460045185] [2021-03-11 23:00:23,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 23:00:23,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 23:00:23,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 23:00:23,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-03-11 23:00:23,876 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-03-11 23:00:23,876 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 1512 transitions, 50497 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 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) [2021-03-11 23:00:23,876 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 23:00:23,877 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-03-11 23:00:23,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 23:01:19,812 INFO L129 PetriNetUnfolder]: 16903/86426 cut-off events. [2021-03-11 23:01:19,813 INFO L130 PetriNetUnfolder]: For 4535887/4584994 co-relation queries the response was YES. [2021-03-11 23:01:22,415 INFO L84 FinitePrefix]: Finished finitePrefix Result has 718018 conditions, 86426 events. 16903/86426 cut-off events. For 4535887/4584994 co-relation queries the response was YES. Maximal size of possible extension queue 9943. Compared 1713232 event pairs, 10149 based on Foata normal form. 119/82857 useless extension candidates. Maximal degree in co-relation 717856. Up to 18373 conditions per place. [2021-03-11 23:01:22,765 INFO L132 encePairwiseOnDemand]: 119/129 looper letters, 1001 selfloop transitions, 910 changer transitions 1/1930 dead transitions. [2021-03-11 23:01:22,765 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 1930 transitions, 67223 flow [2021-03-11 23:01:22,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 23:01:22,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 23:01:22,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1253 transitions. [2021-03-11 23:01:22,766 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.883016208597604 [2021-03-11 23:01:22,766 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1253 transitions. [2021-03-11 23:01:22,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1253 transitions. [2021-03-11 23:01:22,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 23:01:22,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1253 transitions. [2021-03-11 23:01:22,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 113.9090909090909) internal successors, (1253), 11 states have internal predecessors, (1253), 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) [2021-03-11 23:01:22,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 23:01:22,768 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 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) [2021-03-11 23:01:22,768 INFO L185 Difference]: Start difference. First operand has 366 places, 1512 transitions, 50497 flow. Second operand 11 states and 1253 transitions. [2021-03-11 23:01:22,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 1930 transitions, 67223 flow Received shutdown request... [2021-03-11 23:01:32,030 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-11 23:01:32,030 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-11 23:01:32,033 WARN L224 ceAbstractionStarter]: Timeout [2021-03-11 23:01:32,033 INFO L202 PluginConnector]: Adding new model example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 11:01:32 BasicIcfg [2021-03-11 23:01:32,033 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 23:01:32,033 INFO L168 Benchmark]: Toolchain (without parser) took 793727.65 ms. Allocated memory was 337.6 MB in the beginning and 14.0 GB in the end (delta: 13.7 GB). Free memory was 317.9 MB in the beginning and 10.5 GB in the end (delta: -10.1 GB). Peak memory consumption was 3.6 GB. Max. memory is 16.0 GB. [2021-03-11 23:01:32,033 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 337.6 MB. Free memory was 319.0 MB in the beginning and 318.9 MB in the end (delta: 136.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 23:01:32,033 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.03 ms. Allocated memory is still 337.6 MB. Free memory was 317.4 MB in the beginning and 315.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 23:01:32,033 INFO L168 Benchmark]: Boogie Preprocessor took 9.69 ms. Allocated memory is still 337.6 MB. Free memory was 315.9 MB in the beginning and 315.0 MB in the end (delta: 872.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 23:01:32,033 INFO L168 Benchmark]: RCFGBuilder took 231.74 ms. Allocated memory is still 337.6 MB. Free memory was 315.0 MB in the beginning and 303.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-03-11 23:01:32,034 INFO L168 Benchmark]: TraceAbstraction took 793460.49 ms. Allocated memory was 337.6 MB in the beginning and 14.0 GB in the end (delta: 13.7 GB). Free memory was 302.5 MB in the beginning and 10.5 GB in the end (delta: -10.2 GB). Peak memory consumption was 3.6 GB. Max. memory is 16.0 GB. [2021-03-11 23:01:32,034 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 0.10 ms. Allocated memory is still 337.6 MB. Free memory was 319.0 MB in the beginning and 318.9 MB in the end (delta: 136.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 19.03 ms. Allocated memory is still 337.6 MB. Free memory was 317.4 MB in the beginning and 315.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 9.69 ms. Allocated memory is still 337.6 MB. Free memory was 315.9 MB in the beginning and 315.0 MB in the end (delta: 872.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 231.74 ms. Allocated memory is still 337.6 MB. Free memory was 315.0 MB in the beginning and 303.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 793460.49 ms. Allocated memory was 337.6 MB in the beginning and 14.0 GB in the end (delta: 13.7 GB). Free memory was 302.5 MB in the beginning and 10.5 GB in the end (delta: -10.2 GB). Peak memory consumption was 3.6 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 321.1ms, 65 PlacesBefore, 56 PlacesAfterwards, 109 TransitionsBefore, 100 TransitionsAfterwards, 2736 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 11475 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11475, positive: 11475, positive conditional: 0, positive unconditional: 11475, 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: 1488, positive: 1488, positive conditional: 0, positive unconditional: 1488, 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: 1488, positive: 1488, positive conditional: 0, positive unconditional: 1488, 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: 11475, positive: 9987, positive conditional: 0, positive unconditional: 9987, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1488, unknown conditional: 0, unknown unconditional: 1488] , Statistics on independence cache: Total cache size (in pairs): 684, Positive cache size: 684, Positive conditional cache size: 0, Positive unconditional cache size: 684, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - TimeoutResultAtElement [Line: 31]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 31). Cancelled while executing RemoveRedundantFlow. - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 125.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 793332.9ms, OverallIterations: 30, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 786768.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 693.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 944 SDtfs, 1040 SDslu, 915 SDs, 0 SdLazy, 1723 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1281.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 266 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 5611.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=50497occurred in iteration=29, InterpolantAutomatonStates: 255, 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: 27.7ms SsaConstructionTime, 130.6ms SatisfiabilityAnalysisTime, 5390.8ms InterpolantComputationTime, 840 NumberOfCodeBlocks, 840 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 810 ConstructedInterpolants, 0 QuantifiedInterpolants, 21781 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 30 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown