/usr/bin/java -Xmx8000000000 -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-NoLbe-OGIterative-Hitting.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_14.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 12:49:25,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 12:49:25,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 12:49:25,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 12:49:25,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 12:49:25,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 12:49:25,728 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 12:49:25,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 12:49:25,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 12:49:25,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 12:49:25,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 12:49:25,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 12:49:25,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 12:49:25,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 12:49:25,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 12:49:25,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 12:49:25,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 12:49:25,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 12:49:25,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 12:49:25,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 12:49:25,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 12:49:25,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 12:49:25,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 12:49:25,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 12:49:25,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 12:49:25,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-13 12:49:25,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-13 12:49:25,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-13 12:49:25,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-13 12:49:25,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-13 12:49:25,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-13 12:49:25,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-13 12:49:25,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-13 12:49:25,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 12:49:25,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 12:49:25,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 12:49:25,773 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-NoLbe-OGIterative-Hitting.epf [2021-08-13 12:49:25,795 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 12:49:25,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 12:49:25,798 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 12:49:25,798 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 12:49:25,798 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 12:49:25,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 12:49:25,798 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 12:49:25,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 12:49:25,798 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 12:49:25,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 12:49:25,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 12:49:25,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 12:49:25,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 12:49:25,800 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 12:49:25,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 12:49:25,800 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 12:49:25,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 12:49:25,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 12:49:25,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 12:49:25,800 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 12:49:25,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 12:49:25,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 12:49:25,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 12:49:25,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 12:49:25,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 12:49:25,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 12:49:25,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 12:49:25,801 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 12:49:25,801 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 12:49:25,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 12:49:25,802 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 12:49:25,802 INFO L138 SettingsManager]: * Use hitting sets in computation of OwickiGries annotation=true [2021-08-13 12:49:25,802 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 12:49:26,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 12:49:26,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 12:49:26,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 12:49:26,065 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-13 12:49:26,066 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-13 12:49:26,067 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_14.bpl [2021-08-13 12:49:26,067 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_14.bpl' [2021-08-13 12:49:26,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 12:49:26,083 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-13 12:49:26,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 12:49:26,084 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 12:49:26,084 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 12:49:26,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:49:26" (1/1) ... [2021-08-13 12:49:26,097 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:49:26" (1/1) ... [2021-08-13 12:49:26,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 12:49:26,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 12:49:26,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 12:49:26,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 12:49:26,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:49:26" (1/1) ... [2021-08-13 12:49:26,109 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:49:26" (1/1) ... [2021-08-13 12:49:26,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:49:26" (1/1) ... [2021-08-13 12:49:26,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:49:26" (1/1) ... [2021-08-13 12:49:26,114 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:49:26" (1/1) ... [2021-08-13 12:49:26,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:49:26" (1/1) ... [2021-08-13 12:49:26,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:49:26" (1/1) ... [2021-08-13 12:49:26,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 12:49:26,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 12:49:26,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 12:49:26,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 12:49:26,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:49:26" (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 [2021-08-13 12:49:26,202 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-08-13 12:49:26,206 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-08-13 12:49:26,206 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-08-13 12:49:26,206 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-08-13 12:49:26,206 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-08-13 12:49:26,206 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-08-13 12:49:26,206 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-08-13 12:49:26,206 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-08-13 12:49:26,206 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-08-13 12:49:26,206 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-08-13 12:49:26,215 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-08-13 12:49:26,216 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-08-13 12:49:26,216 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-08-13 12:49:26,216 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-08-13 12:49:26,216 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-08-13 12:49:26,216 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-08-13 12:49:26,216 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-08-13 12:49:26,216 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-08-13 12:49:26,216 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-13 12:49:26,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 12:49:26,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 12:49:26,217 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_12 given in one single declaration [2021-08-13 12:49:26,217 INFO L130 BoogieDeclarations]: Found specification of procedure set_12 [2021-08-13 12:49:26,217 INFO L138 BoogieDeclarations]: Found implementation of procedure set_12 [2021-08-13 12:49:26,217 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-08-13 12:49:26,217 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-08-13 12:49:26,217 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-08-13 12:49:26,217 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_13 given in one single declaration [2021-08-13 12:49:26,217 INFO L130 BoogieDeclarations]: Found specification of procedure set_13 [2021-08-13 12:49:26,217 INFO L138 BoogieDeclarations]: Found implementation of procedure set_13 [2021-08-13 12:49:26,217 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-08-13 12:49:26,217 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-08-13 12:49:26,217 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-08-13 12:49:26,218 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2021-08-13 12:49:26,218 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2021-08-13 12:49:26,218 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2021-08-13 12:49:26,218 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-08-13 12:49:26,218 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-08-13 12:49:26,218 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-08-13 12:49:26,218 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_11 given in one single declaration [2021-08-13 12:49:26,218 INFO L130 BoogieDeclarations]: Found specification of procedure set_11 [2021-08-13 12:49:26,218 INFO L138 BoogieDeclarations]: Found implementation of procedure set_11 [2021-08-13 12:49:26,218 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-08-13 12:49:26,219 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-08-13 12:49:26,219 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-08-13 12:49:26,225 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 12:49:26,445 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 12:49:26,445 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-13 12:49:26,446 INFO L202 PluginConnector]: Adding new model example_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 12:49:26 BoogieIcfgContainer [2021-08-13 12:49:26,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 12:49:26,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 12:49:26,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 12:49:26,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 12:49:26,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 12:49:26" (1/2) ... [2021-08-13 12:49:26,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5afe4f5d and model type example_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 12:49:26, skipping insertion in model container [2021-08-13 12:49:26,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 12:49:26" (2/2) ... [2021-08-13 12:49:26,451 INFO L111 eAbstractionObserver]: Analyzing ICFG example_14.bpl [2021-08-13 12:49:26,475 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 12:49:26,476 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 12:49:26,476 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 12:49:26,761 INFO L149 ThreadInstanceAdder]: Constructed 196 joinOtherThreadTransitions. [2021-08-13 12:49:26,776 INFO L255 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-08-13 12:49:26,802 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 12:49:26,802 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 12:49:26,802 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 12:49:26,802 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 12:49:26,802 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 12:49:26,802 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 12:49:26,802 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 12:49:26,802 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 12:49:26,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 255 transitions, 1168 flow [2021-08-13 12:49:34,846 INFO L129 PetriNetUnfolder]: 98305/114733 cut-off events. [2021-08-13 12:49:34,846 INFO L130 PetriNetUnfolder]: For 114688/114688 co-relation queries the response was YES. [2021-08-13 12:49:35,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 229464 conditions, 114733 events. 98305/114733 cut-off events. For 114688/114688 co-relation queries the response was YES. Maximal size of possible extension queue 3628. Compared 465637 event pairs, 0 based on Foata normal form. 0/114732 useless extension candidates. Maximal degree in co-relation 106563. Up to 24024 conditions per place. [2021-08-13 12:49:35,699 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 255 transitions, 1168 flow [2021-08-13 12:49:36,478 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 239 transitions, 1108 flow [2021-08-13 12:49:44,358 INFO L129 PetriNetUnfolder]: 98305/114730 cut-off events. [2021-08-13 12:49:44,358 INFO L130 PetriNetUnfolder]: For 114688/114688 co-relation queries the response was YES. [2021-08-13 12:49:44,358 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:49:44,359 INFO L266 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, 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, 1] [2021-08-13 12:49:44,359 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:49:44,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:49:44,367 INFO L82 PathProgramCache]: Analyzing trace with hash 927623714, now seen corresponding path program 1 times [2021-08-13 12:49:44,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:49:44,373 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129807450] [2021-08-13 12:49:44,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:49:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:49:44,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:49:44,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:49:44,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:49:44,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:49:44,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:49:44,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:49:44,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:49:44,607 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:49:44,607 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129807450] [2021-08-13 12:49:44,607 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129807450] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:49:44,607 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:49:44,608 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:49:44,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365755776] [2021-08-13 12:49:44,613 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:49:44,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:49:44,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:49:44,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:49:44,624 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 12:49:44,627 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 239 transitions, 1108 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:49:44,627 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:49:44,627 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 12:49:44,628 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:49:52,626 INFO L129 PetriNetUnfolder]: 94418/110466 cut-off events. [2021-08-13 12:49:52,626 INFO L130 PetriNetUnfolder]: For 127186/127186 co-relation queries the response was YES. [2021-08-13 12:49:53,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 228748 conditions, 110466 events. 94418/110466 cut-off events. For 127186/127186 co-relation queries the response was YES. Maximal size of possible extension queue 3628. Compared 539528 event pairs, 0 based on Foata normal form. 378/110844 useless extension candidates. Maximal degree in co-relation 108774. Up to 24024 conditions per place. [2021-08-13 12:49:54,219 INFO L132 encePairwiseOnDemand]: 250/255 looper letters, 10 selfloop transitions, 1 changer transitions 0/235 dead transitions. [2021-08-13 12:49:54,220 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 235 transitions, 1110 flow [2021-08-13 12:49:54,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:49:54,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:49:54,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2021-08-13 12:49:54,231 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9607843137254902 [2021-08-13 12:49:54,231 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2021-08-13 12:49:54,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2021-08-13 12:49:54,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:49:54,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2021-08-13 12:49:54,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:49:54,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:49:54,243 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:49:54,244 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 2 predicate places. [2021-08-13 12:49:54,244 INFO L482 AbstractCegarLoop]: Abstraction has has 102 places, 235 transitions, 1110 flow [2021-08-13 12:49:54,245 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:49:54,245 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:49:54,245 INFO L266 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, 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, 1] [2021-08-13 12:49:54,245 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 12:49:54,245 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:49:54,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:49:54,246 INFO L82 PathProgramCache]: Analyzing trace with hash 265140278, now seen corresponding path program 1 times [2021-08-13 12:49:54,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:49:54,246 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620786443] [2021-08-13 12:49:54,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:49:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:49:54,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:49:54,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:49:54,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:49:54,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:49:54,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:49:54,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:49:54,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:49:54,269 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:49:54,269 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620786443] [2021-08-13 12:49:54,269 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620786443] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:49:54,269 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:49:54,269 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:49:54,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724907743] [2021-08-13 12:49:54,270 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:49:54,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:49:54,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:49:54,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:49:54,273 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 12:49:54,274 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 235 transitions, 1110 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:49:54,274 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:49:54,274 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 12:49:54,274 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:49:57,457 INFO L129 PetriNetUnfolder]: 43300/51613 cut-off events. [2021-08-13 12:49:57,457 INFO L130 PetriNetUnfolder]: For 82625/82625 co-relation queries the response was YES. [2021-08-13 12:49:57,675 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107484 conditions, 51613 events. 43300/51613 cut-off events. For 82625/82625 co-relation queries the response was YES. Maximal size of possible extension queue 1912. Compared 245129 event pairs, 0 based on Foata normal form. 7515/59128 useless extension candidates. Maximal degree in co-relation 104164. Up to 12012 conditions per place. [2021-08-13 12:49:58,036 INFO L132 encePairwiseOnDemand]: 244/255 looper letters, 4 selfloop transitions, 1 changer transitions 0/225 dead transitions. [2021-08-13 12:49:58,036 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 225 transitions, 1070 flow [2021-08-13 12:49:58,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:49:58,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:49:58,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2021-08-13 12:49:58,038 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9607843137254902 [2021-08-13 12:49:58,038 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2021-08-13 12:49:58,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2021-08-13 12:49:58,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:49:58,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2021-08-13 12:49:58,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:49:58,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:49:58,042 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:49:58,043 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 4 predicate places. [2021-08-13 12:49:58,043 INFO L482 AbstractCegarLoop]: Abstraction has has 104 places, 225 transitions, 1070 flow [2021-08-13 12:49:58,044 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:49:58,044 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:49:58,044 INFO L266 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, 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, 1] [2021-08-13 12:49:58,044 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 12:49:58,044 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:49:58,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:49:58,046 INFO L82 PathProgramCache]: Analyzing trace with hash 46224474, now seen corresponding path program 1 times [2021-08-13 12:49:58,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:49:58,046 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170689070] [2021-08-13 12:49:58,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:49:58,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:49:58,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:49:58,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:49:58,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:49:58,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:49:58,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:49:58,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:49:58,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:49:58,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:49:58,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170689070] [2021-08-13 12:49:58,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170689070] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:49:58,109 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:49:58,109 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:49:58,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077880395] [2021-08-13 12:49:58,110 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:49:58,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:49:58,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:49:58,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:49:58,111 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 12:49:58,112 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 225 transitions, 1070 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:49:58,112 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:49:58,112 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 12:49:58,112 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:49:59,992 INFO L129 PetriNetUnfolder]: 22356/27434 cut-off events. [2021-08-13 12:49:59,992 INFO L130 PetriNetUnfolder]: For 43360/43360 co-relation queries the response was YES. [2021-08-13 12:50:00,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58252 conditions, 27434 events. 22356/27434 cut-off events. For 43360/43360 co-relation queries the response was YES. Maximal size of possible extension queue 988. Compared 130788 event pairs, 0 based on Foata normal form. 3070/30504 useless extension candidates. Maximal degree in co-relation 54851. Up to 5544 conditions per place. [2021-08-13 12:50:00,203 INFO L132 encePairwiseOnDemand]: 246/255 looper letters, 6 selfloop transitions, 1 changer transitions 0/217 dead transitions. [2021-08-13 12:50:00,204 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 217 transitions, 1044 flow [2021-08-13 12:50:00,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:50:00,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:50:00,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2021-08-13 12:50:00,205 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9607843137254902 [2021-08-13 12:50:00,205 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2021-08-13 12:50:00,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2021-08-13 12:50:00,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:50:00,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2021-08-13 12:50:00,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:00,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:00,209 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:00,209 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 6 predicate places. [2021-08-13 12:50:00,209 INFO L482 AbstractCegarLoop]: Abstraction has has 106 places, 217 transitions, 1044 flow [2021-08-13 12:50:00,209 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:00,209 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:50:00,209 INFO L266 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, 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, 1] [2021-08-13 12:50:00,210 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 12:50:00,210 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:50:00,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:50:00,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1758934324, now seen corresponding path program 1 times [2021-08-13 12:50:00,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:50:00,211 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143297421] [2021-08-13 12:50:00,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:50:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:50:00,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:00,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:00,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:00,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:50:00,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:00,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:00,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:50:00,234 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:50:00,234 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143297421] [2021-08-13 12:50:00,234 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143297421] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:50:00,234 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:50:00,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:50:00,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887999586] [2021-08-13 12:50:00,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:50:00,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:50:00,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:50:00,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:50:00,236 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 12:50:00,237 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 217 transitions, 1044 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:00,237 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:50:00,237 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 12:50:00,237 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:50:01,769 INFO L129 PetriNetUnfolder]: 18746/23318 cut-off events. [2021-08-13 12:50:01,769 INFO L130 PetriNetUnfolder]: For 34127/34127 co-relation queries the response was YES. [2021-08-13 12:50:01,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51489 conditions, 23318 events. 18746/23318 cut-off events. For 34127/34127 co-relation queries the response was YES. Maximal size of possible extension queue 988. Compared 114395 event pairs, 0 based on Foata normal form. 386/23704 useless extension candidates. Maximal degree in co-relation 48007. Up to 5544 conditions per place. [2021-08-13 12:50:02,259 INFO L132 encePairwiseOnDemand]: 249/255 looper letters, 9 selfloop transitions, 1 changer transitions 0/212 dead transitions. [2021-08-13 12:50:02,259 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 212 transitions, 1039 flow [2021-08-13 12:50:02,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:50:02,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:50:02,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2021-08-13 12:50:02,262 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9607843137254902 [2021-08-13 12:50:02,262 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2021-08-13 12:50:02,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2021-08-13 12:50:02,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:50:02,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2021-08-13 12:50:02,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:02,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:02,267 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:02,267 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 8 predicate places. [2021-08-13 12:50:02,267 INFO L482 AbstractCegarLoop]: Abstraction has has 108 places, 212 transitions, 1039 flow [2021-08-13 12:50:02,268 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:02,268 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:50:02,268 INFO L266 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, 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, 1] [2021-08-13 12:50:02,268 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 12:50:02,268 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:50:02,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:50:02,269 INFO L82 PathProgramCache]: Analyzing trace with hash -958813692, now seen corresponding path program 1 times [2021-08-13 12:50:02,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:50:02,269 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811783097] [2021-08-13 12:50:02,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:50:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:50:02,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:02,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:02,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:02,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:50:02,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:02,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:02,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:50:02,293 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:50:02,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811783097] [2021-08-13 12:50:02,293 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811783097] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:50:02,293 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:50:02,293 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:50:02,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587157909] [2021-08-13 12:50:02,294 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:50:02,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:50:02,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:50:02,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:50:02,296 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 12:50:02,297 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 212 transitions, 1039 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:02,297 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:50:02,297 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 12:50:02,297 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:50:03,930 INFO L129 PetriNetUnfolder]: 18737/23308 cut-off events. [2021-08-13 12:50:03,931 INFO L130 PetriNetUnfolder]: For 36647/36647 co-relation queries the response was YES. [2021-08-13 12:50:04,025 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53313 conditions, 23308 events. 18737/23308 cut-off events. For 36647/36647 co-relation queries the response was YES. Maximal size of possible extension queue 988. Compared 113977 event pairs, 0 based on Foata normal form. 1/23309 useless extension candidates. Maximal degree in co-relation 49750. Up to 5544 conditions per place. [2021-08-13 12:50:04,154 INFO L132 encePairwiseOnDemand]: 253/255 looper letters, 13 selfloop transitions, 1 changer transitions 0/211 dead transitions. [2021-08-13 12:50:04,155 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 211 transitions, 1062 flow [2021-08-13 12:50:04,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:50:04,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:50:04,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2021-08-13 12:50:04,157 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9607843137254902 [2021-08-13 12:50:04,157 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2021-08-13 12:50:04,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2021-08-13 12:50:04,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:50:04,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2021-08-13 12:50:04,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:04,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:04,161 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:04,162 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 10 predicate places. [2021-08-13 12:50:04,162 INFO L482 AbstractCegarLoop]: Abstraction has has 110 places, 211 transitions, 1062 flow [2021-08-13 12:50:04,162 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:04,162 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:50:04,162 INFO L266 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, 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, 1] [2021-08-13 12:50:04,162 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 12:50:04,163 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:50:04,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:50:04,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1176074936, now seen corresponding path program 1 times [2021-08-13 12:50:04,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:50:04,163 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097965078] [2021-08-13 12:50:04,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:50:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:50:04,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:04,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:04,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:04,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:50:04,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:04,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:04,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:50:04,186 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:50:04,186 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097965078] [2021-08-13 12:50:04,186 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097965078] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:50:04,186 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:50:04,186 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:50:04,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818055812] [2021-08-13 12:50:04,187 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:50:04,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:50:04,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:50:04,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:50:04,188 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 12:50:04,189 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 211 transitions, 1062 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:04,189 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:50:04,189 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 12:50:04,189 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:50:04,937 INFO L129 PetriNetUnfolder]: 8259/10741 cut-off events. [2021-08-13 12:50:04,937 INFO L130 PetriNetUnfolder]: For 22476/22476 co-relation queries the response was YES. [2021-08-13 12:50:04,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25184 conditions, 10741 events. 8259/10741 cut-off events. For 22476/22476 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 51904 event pairs, 0 based on Foata normal form. 1464/12205 useless extension candidates. Maximal degree in co-relation 21540. Up to 2310 conditions per place. [2021-08-13 12:50:05,043 INFO L132 encePairwiseOnDemand]: 245/255 looper letters, 5 selfloop transitions, 1 changer transitions 0/202 dead transitions. [2021-08-13 12:50:05,043 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 202 transitions, 1029 flow [2021-08-13 12:50:05,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:50:05,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:50:05,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2021-08-13 12:50:05,045 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9607843137254902 [2021-08-13 12:50:05,045 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2021-08-13 12:50:05,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2021-08-13 12:50:05,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:50:05,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2021-08-13 12:50:05,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:05,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:05,049 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:05,049 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 12 predicate places. [2021-08-13 12:50:05,049 INFO L482 AbstractCegarLoop]: Abstraction has has 112 places, 202 transitions, 1029 flow [2021-08-13 12:50:05,050 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:05,050 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:50:05,050 INFO L266 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, 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, 1] [2021-08-13 12:50:05,050 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 12:50:05,050 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:50:05,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:50:05,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1014788368, now seen corresponding path program 1 times [2021-08-13 12:50:05,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:50:05,051 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684728335] [2021-08-13 12:50:05,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:50:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:50:05,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:05,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:05,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:05,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:50:05,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:05,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:05,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:50:05,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:50:05,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684728335] [2021-08-13 12:50:05,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684728335] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:50:05,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:50:05,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:50:05,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209024903] [2021-08-13 12:50:05,070 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:50:05,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:50:05,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:50:05,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:50:05,072 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 12:50:05,072 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 202 transitions, 1029 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:05,072 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:50:05,072 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 12:50:05,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:50:05,808 INFO L129 PetriNetUnfolder]: 8196/10669 cut-off events. [2021-08-13 12:50:05,808 INFO L130 PetriNetUnfolder]: For 19757/19757 co-relation queries the response was YES. [2021-08-13 12:50:05,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25902 conditions, 10669 events. 8196/10669 cut-off events. For 19757/19757 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 52144 event pairs, 0 based on Foata normal form. 8/10677 useless extension candidates. Maximal degree in co-relation 22177. Up to 2310 conditions per place. [2021-08-13 12:50:05,906 INFO L132 encePairwiseOnDemand]: 252/255 looper letters, 12 selfloop transitions, 1 changer transitions 0/200 dead transitions. [2021-08-13 12:50:05,906 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 200 transitions, 1045 flow [2021-08-13 12:50:05,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:50:05,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:50:05,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2021-08-13 12:50:05,908 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9607843137254902 [2021-08-13 12:50:05,908 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2021-08-13 12:50:05,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2021-08-13 12:50:05,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:50:05,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2021-08-13 12:50:05,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:05,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:05,910 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:05,910 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 14 predicate places. [2021-08-13 12:50:05,911 INFO L482 AbstractCegarLoop]: Abstraction has has 114 places, 200 transitions, 1045 flow [2021-08-13 12:50:05,911 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:05,911 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:50:05,911 INFO L266 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, 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, 1] [2021-08-13 12:50:05,911 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 12:50:05,911 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:50:05,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:50:05,911 INFO L82 PathProgramCache]: Analyzing trace with hash 409637460, now seen corresponding path program 1 times [2021-08-13 12:50:05,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:50:05,912 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251887560] [2021-08-13 12:50:05,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:50:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:50:05,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:05,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:05,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:05,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:50:05,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:05,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:05,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:50:05,932 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:50:05,932 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251887560] [2021-08-13 12:50:05,932 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251887560] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:50:05,933 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:50:05,933 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:50:05,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612323327] [2021-08-13 12:50:05,933 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:50:05,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:50:05,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:50:05,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:50:05,935 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 12:50:05,936 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 200 transitions, 1045 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:05,936 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:50:05,936 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 12:50:05,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:50:06,757 INFO L129 PetriNetUnfolder]: 7980/10417 cut-off events. [2021-08-13 12:50:06,757 INFO L130 PetriNetUnfolder]: For 21134/21134 co-relation queries the response was YES. [2021-08-13 12:50:06,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26184 conditions, 10417 events. 7980/10417 cut-off events. For 21134/21134 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 51315 event pairs, 0 based on Foata normal form. 28/10445 useless extension candidates. Maximal degree in co-relation 22378. Up to 2310 conditions per place. [2021-08-13 12:50:06,847 INFO L132 encePairwiseOnDemand]: 251/255 looper letters, 11 selfloop transitions, 1 changer transitions 0/197 dead transitions. [2021-08-13 12:50:06,847 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 197 transitions, 1054 flow [2021-08-13 12:50:06,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:50:06,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:50:06,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2021-08-13 12:50:06,849 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9607843137254902 [2021-08-13 12:50:06,849 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2021-08-13 12:50:06,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2021-08-13 12:50:06,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:50:06,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2021-08-13 12:50:06,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:06,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:06,853 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:06,853 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 16 predicate places. [2021-08-13 12:50:06,853 INFO L482 AbstractCegarLoop]: Abstraction has has 116 places, 197 transitions, 1054 flow [2021-08-13 12:50:06,853 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:06,853 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:50:06,853 INFO L266 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, 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, 1] [2021-08-13 12:50:06,854 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 12:50:06,854 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:50:06,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:50:06,854 INFO L82 PathProgramCache]: Analyzing trace with hash -852635206, now seen corresponding path program 1 times [2021-08-13 12:50:06,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:50:06,855 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039254035] [2021-08-13 12:50:06,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:50:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:50:06,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:06,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:06,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:06,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:50:06,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:06,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:06,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:50:06,871 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:50:06,871 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039254035] [2021-08-13 12:50:06,872 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039254035] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:50:06,872 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:50:06,872 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:50:06,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741497942] [2021-08-13 12:50:06,872 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:50:06,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:50:06,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:50:06,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:50:06,874 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 12:50:06,874 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 197 transitions, 1054 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:06,874 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:50:06,874 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 12:50:06,875 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:50:07,109 INFO L129 PetriNetUnfolder]: 2457/3431 cut-off events. [2021-08-13 12:50:07,110 INFO L130 PetriNetUnfolder]: For 9397/9397 co-relation queries the response was YES. [2021-08-13 12:50:07,126 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8758 conditions, 3431 events. 2457/3431 cut-off events. For 9397/9397 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 16731 event pairs, 0 based on Foata normal form. 748/4179 useless extension candidates. Maximal degree in co-relation 7970. Up to 840 conditions per place. [2021-08-13 12:50:07,144 INFO L132 encePairwiseOnDemand]: 243/255 looper letters, 3 selfloop transitions, 1 changer transitions 0/186 dead transitions. [2021-08-13 12:50:07,144 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 186 transitions, 1007 flow [2021-08-13 12:50:07,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:50:07,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:50:07,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2021-08-13 12:50:07,146 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9607843137254902 [2021-08-13 12:50:07,146 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2021-08-13 12:50:07,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2021-08-13 12:50:07,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:50:07,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2021-08-13 12:50:07,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,149 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,149 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 18 predicate places. [2021-08-13 12:50:07,149 INFO L482 AbstractCegarLoop]: Abstraction has has 118 places, 186 transitions, 1007 flow [2021-08-13 12:50:07,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,149 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:50:07,149 INFO L266 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, 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, 1] [2021-08-13 12:50:07,150 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-13 12:50:07,150 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:50:07,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:50:07,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1190272126, now seen corresponding path program 1 times [2021-08-13 12:50:07,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:50:07,150 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227670338] [2021-08-13 12:50:07,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:50:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:50:07,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:07,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:07,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:07,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:50:07,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:07,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:07,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:50:07,166 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:50:07,166 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227670338] [2021-08-13 12:50:07,166 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227670338] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:50:07,166 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:50:07,166 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:50:07,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678092065] [2021-08-13 12:50:07,167 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:50:07,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:50:07,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:50:07,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:50:07,168 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 12:50:07,168 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 186 transitions, 1007 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,169 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:50:07,169 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 12:50:07,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:50:07,228 INFO L129 PetriNetUnfolder]: 624/969 cut-off events. [2021-08-13 12:50:07,228 INFO L130 PetriNetUnfolder]: For 2915/2915 co-relation queries the response was YES. [2021-08-13 12:50:07,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2496 conditions, 969 events. 624/969 cut-off events. For 2915/2915 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4115 event pairs, 0 based on Foata normal form. 301/1270 useless extension candidates. Maximal degree in co-relation 2415. Up to 252 conditions per place. [2021-08-13 12:50:07,235 INFO L132 encePairwiseOnDemand]: 241/255 looper letters, 1 selfloop transitions, 1 changer transitions 0/160 dead transitions. [2021-08-13 12:50:07,235 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 160 transitions, 863 flow [2021-08-13 12:50:07,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:50:07,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:50:07,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 735 transitions. [2021-08-13 12:50:07,236 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9607843137254902 [2021-08-13 12:50:07,236 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 735 transitions. [2021-08-13 12:50:07,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 735 transitions. [2021-08-13 12:50:07,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:50:07,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 735 transitions. [2021-08-13 12:50:07,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.0) internal successors, (735), 3 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,239 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,239 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 20 predicate places. [2021-08-13 12:50:07,239 INFO L482 AbstractCegarLoop]: Abstraction has has 120 places, 160 transitions, 863 flow [2021-08-13 12:50:07,239 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,239 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:50:07,239 INFO L266 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, 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, 1] [2021-08-13 12:50:07,239 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-13 12:50:07,239 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:50:07,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:50:07,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1980040420, now seen corresponding path program 1 times [2021-08-13 12:50:07,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:50:07,240 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311142813] [2021-08-13 12:50:07,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:50:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:50:07,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:07,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:07,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:07,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:50:07,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:07,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:07,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:50:07,254 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:50:07,254 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311142813] [2021-08-13 12:50:07,254 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311142813] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:50:07,254 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:50:07,254 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:50:07,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131623801] [2021-08-13 12:50:07,255 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:50:07,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:50:07,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:50:07,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:50:07,256 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 12:50:07,256 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 160 transitions, 863 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,256 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:50:07,256 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 12:50:07,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:50:07,300 INFO L129 PetriNetUnfolder]: 190/381 cut-off events. [2021-08-13 12:50:07,300 INFO L130 PetriNetUnfolder]: For 1073/1073 co-relation queries the response was YES. [2021-08-13 12:50:07,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1020 conditions, 381 events. 190/381 cut-off events. For 1073/1073 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1381 event pairs, 0 based on Foata normal form. 84/465 useless extension candidates. Maximal degree in co-relation 937. Up to 63 conditions per place. [2021-08-13 12:50:07,304 INFO L132 encePairwiseOnDemand]: 247/255 looper letters, 6 selfloop transitions, 1 changer transitions 0/153 dead transitions. [2021-08-13 12:50:07,304 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 153 transitions, 842 flow [2021-08-13 12:50:07,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:50:07,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:50:07,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 734 transitions. [2021-08-13 12:50:07,306 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9594771241830066 [2021-08-13 12:50:07,306 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 734 transitions. [2021-08-13 12:50:07,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 734 transitions. [2021-08-13 12:50:07,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:50:07,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 734 transitions. [2021-08-13 12:50:07,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.66666666666666) internal successors, (734), 3 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,310 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,310 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 22 predicate places. [2021-08-13 12:50:07,310 INFO L482 AbstractCegarLoop]: Abstraction has has 122 places, 153 transitions, 842 flow [2021-08-13 12:50:07,310 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,311 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:50:07,311 INFO L266 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, 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, 1] [2021-08-13 12:50:07,311 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-13 12:50:07,311 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:50:07,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:50:07,312 INFO L82 PathProgramCache]: Analyzing trace with hash -274401474, now seen corresponding path program 1 times [2021-08-13 12:50:07,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:50:07,312 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905974410] [2021-08-13 12:50:07,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:50:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:50:07,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:07,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:07,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:07,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:50:07,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:07,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:07,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:50:07,330 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:50:07,330 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905974410] [2021-08-13 12:50:07,331 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905974410] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:50:07,331 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:50:07,331 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:50:07,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955139442] [2021-08-13 12:50:07,331 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:50:07,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:50:07,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:50:07,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:50:07,333 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 12:50:07,333 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 153 transitions, 842 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,333 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:50:07,333 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 12:50:07,334 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:50:07,365 INFO L129 PetriNetUnfolder]: 78/213 cut-off events. [2021-08-13 12:50:07,365 INFO L130 PetriNetUnfolder]: For 533/533 co-relation queries the response was YES. [2021-08-13 12:50:07,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 594 conditions, 213 events. 78/213 cut-off events. For 533/533 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 665 event pairs, 0 based on Foata normal form. 21/234 useless extension candidates. Maximal degree in co-relation 509. Up to 24 conditions per place. [2021-08-13 12:50:07,367 INFO L132 encePairwiseOnDemand]: 248/255 looper letters, 7 selfloop transitions, 1 changer transitions 0/147 dead transitions. [2021-08-13 12:50:07,367 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 147 transitions, 828 flow [2021-08-13 12:50:07,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:50:07,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:50:07,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 734 transitions. [2021-08-13 12:50:07,369 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9594771241830066 [2021-08-13 12:50:07,369 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 734 transitions. [2021-08-13 12:50:07,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 734 transitions. [2021-08-13 12:50:07,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:50:07,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 734 transitions. [2021-08-13 12:50:07,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.66666666666666) internal successors, (734), 3 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,373 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,373 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 24 predicate places. [2021-08-13 12:50:07,373 INFO L482 AbstractCegarLoop]: Abstraction has has 124 places, 147 transitions, 828 flow [2021-08-13 12:50:07,373 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,374 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:50:07,374 INFO L266 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, 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, 1] [2021-08-13 12:50:07,374 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-13 12:50:07,374 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:50:07,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:50:07,374 INFO L82 PathProgramCache]: Analyzing trace with hash 209758146, now seen corresponding path program 1 times [2021-08-13 12:50:07,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:50:07,375 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160378932] [2021-08-13 12:50:07,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:50:07,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:50:07,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:07,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:07,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:07,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 12:50:07,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:07,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:07,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:50:07,389 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:50:07,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160378932] [2021-08-13 12:50:07,389 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160378932] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:50:07,390 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:50:07,390 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 12:50:07,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617447834] [2021-08-13 12:50:07,390 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 12:50:07,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:50:07,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 12:50:07,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 12:50:07,392 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 255 [2021-08-13 12:50:07,392 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 147 transitions, 828 flow. Second operand has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,392 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:50:07,392 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 255 [2021-08-13 12:50:07,393 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:50:07,412 INFO L129 PetriNetUnfolder]: 0/57 cut-off events. [2021-08-13 12:50:07,412 INFO L130 PetriNetUnfolder]: For 89/89 co-relation queries the response was YES. [2021-08-13 12:50:07,412 INFO L84 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 57 events. 0/57 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 12/69 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-08-13 12:50:07,413 INFO L132 encePairwiseOnDemand]: 242/255 looper letters, 1 selfloop transitions, 1 changer transitions 0/57 dead transitions. [2021-08-13 12:50:07,413 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 57 transitions, 250 flow [2021-08-13 12:50:07,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 12:50:07,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 12:50:07,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 734 transitions. [2021-08-13 12:50:07,415 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9594771241830066 [2021-08-13 12:50:07,415 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 734 transitions. [2021-08-13 12:50:07,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 734 transitions. [2021-08-13 12:50:07,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:50:07,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 734 transitions. [2021-08-13 12:50:07,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.66666666666666) internal successors, (734), 3 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,418 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,418 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 26 predicate places. [2021-08-13 12:50:07,418 INFO L482 AbstractCegarLoop]: Abstraction has has 126 places, 57 transitions, 250 flow [2021-08-13 12:50:07,419 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 240.66666666666666) internal successors, (722), 3 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:07,419 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:50:07,419 INFO L266 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, 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, 1] [2021-08-13 12:50:07,419 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-13 12:50:07,419 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:50:07,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:50:07,420 INFO L82 PathProgramCache]: Analyzing trace with hash 109262252, now seen corresponding path program 1 times [2021-08-13 12:50:07,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:50:07,420 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377840049] [2021-08-13 12:50:07,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:50:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:50:07,658 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2021-08-13 12:50:07,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:07,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:07,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:07,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 12:50:07,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:07,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 12:50:07,684 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 12:50:07,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 12:50:07,708 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-08-13 12:50:07,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-08-13 12:50:07,743 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-08-13 12:50:07,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-08-13 12:50:07,789 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-08-13 12:50:07,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-08-13 12:50:07,841 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-08-13 12:50:07,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-08-13 12:50:07,906 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-13 12:50:07,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 12:50:07,954 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-13 12:50:07,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 12:50:08,013 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-08-13 12:50:08,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-08-13 12:50:08,083 INFO L142 QuantifierPusher]: treesize reduction 81, result has 51.2 percent of original size [2021-08-13 12:50:08,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-08-13 12:50:08,168 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.0 percent of original size [2021-08-13 12:50:08,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-08-13 12:50:08,319 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-08-13 12:50:08,329 INFO L142 QuantifierPusher]: treesize reduction 108, result has 48.8 percent of original size [2021-08-13 12:50:08,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-08-13 12:50:08,473 INFO L142 QuantifierPusher]: treesize reduction 117, result has 47.3 percent of original size [2021-08-13 12:50:08,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-08-13 12:50:08,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:50:08,570 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:50:08,570 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377840049] [2021-08-13 12:50:08,570 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377840049] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:50:08,570 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:50:08,570 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-13 12:50:08,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246270029] [2021-08-13 12:50:08,571 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-08-13 12:50:08,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:50:08,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-13 12:50:08,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2021-08-13 12:50:08,573 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 255 [2021-08-13 12:50:08,575 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 57 transitions, 250 flow. Second operand has 16 states, 16 states have (on average 239.9375) internal successors, (3839), 16 states have internal predecessors, (3839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:08,575 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:50:08,575 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 255 [2021-08-13 12:50:08,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:50:29,841 INFO L129 PetriNetUnfolder]: 135171/187606 cut-off events. [2021-08-13 12:50:29,842 INFO L130 PetriNetUnfolder]: For 9145/9145 co-relation queries the response was YES. [2021-08-13 12:50:32,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 353685 conditions, 187606 events. 135171/187606 cut-off events. For 9145/9145 co-relation queries the response was YES. Maximal size of possible extension queue 12539. Compared 1479228 event pairs, 45057 based on Foata normal form. 1/185849 useless extension candidates. Maximal degree in co-relation 353533. Up to 57345 conditions per place. [2021-08-13 12:50:33,106 INFO L132 encePairwiseOnDemand]: 240/255 looper letters, 104 selfloop transitions, 13 changer transitions 1/160 dead transitions. [2021-08-13 12:50:33,107 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 160 transitions, 692 flow [2021-08-13 12:50:33,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-13 12:50:33,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-08-13 12:50:33,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3943 transitions. [2021-08-13 12:50:33,112 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.966421568627451 [2021-08-13 12:50:33,112 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3943 transitions. [2021-08-13 12:50:33,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3943 transitions. [2021-08-13 12:50:33,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:50:33,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3943 transitions. [2021-08-13 12:50:33,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 246.4375) internal successors, (3943), 16 states have internal predecessors, (3943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:33,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 255.0) internal successors, (4335), 17 states have internal predecessors, (4335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:33,123 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 255.0) internal successors, (4335), 17 states have internal predecessors, (4335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:33,123 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 41 predicate places. [2021-08-13 12:50:33,123 INFO L482 AbstractCegarLoop]: Abstraction has has 141 places, 160 transitions, 692 flow [2021-08-13 12:50:33,124 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 239.9375) internal successors, (3839), 16 states have internal predecessors, (3839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:33,124 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:50:33,124 INFO L266 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, 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, 1] [2021-08-13 12:50:33,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-13 12:50:33,124 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:50:33,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:50:33,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1325400386, now seen corresponding path program 2 times [2021-08-13 12:50:33,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:50:33,125 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722338131] [2021-08-13 12:50:33,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:50:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:50:33,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:33,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:50:33,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:33,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 12:50:33,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:50:33,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 12:50:33,268 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 12:50:33,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 12:50:33,278 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 12:50:33,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 12:50:33,292 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 12:50:33,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 12:50:33,311 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 12:50:33,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 12:50:33,335 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-13 12:50:33,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-13 12:50:33,365 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-13 12:50:33,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 12:50:33,401 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-13 12:50:33,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 12:50:33,445 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-08-13 12:50:33,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-08-13 12:50:33,503 INFO L142 QuantifierPusher]: treesize reduction 81, result has 51.2 percent of original size [2021-08-13 12:50:33,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-08-13 12:50:33,566 INFO L142 QuantifierPusher]: treesize reduction 90, result has 50.8 percent of original size [2021-08-13 12:50:33,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-08-13 12:50:33,639 INFO L142 QuantifierPusher]: treesize reduction 99, result has 50.5 percent of original size [2021-08-13 12:50:33,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-08-13 12:50:33,719 INFO L142 QuantifierPusher]: treesize reduction 117, result has 47.3 percent of original size [2021-08-13 12:50:33,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-08-13 12:50:33,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:50:33,788 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:50:33,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722338131] [2021-08-13 12:50:33,788 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722338131] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:50:33,789 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:50:33,789 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-13 12:50:33,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075613619] [2021-08-13 12:50:33,789 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-08-13 12:50:33,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:50:33,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-13 12:50:33,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2021-08-13 12:50:33,791 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 255 [2021-08-13 12:50:33,793 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 160 transitions, 692 flow. Second operand has 16 states, 16 states have (on average 239.9375) internal successors, (3839), 16 states have internal predecessors, (3839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:50:33,794 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:50:33,794 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 255 [2021-08-13 12:50:33,794 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 12:51:17,949 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2021-08-13 12:51:22,325 INFO L129 PetriNetUnfolder]: 184585/286538 cut-off events. [2021-08-13 12:51:22,325 INFO L130 PetriNetUnfolder]: For 74109/675195 co-relation queries the response was YES. [2021-08-13 12:51:25,966 INFO L84 FinitePrefix]: Finished finitePrefix Result has 779911 conditions, 286538 events. 184585/286538 cut-off events. For 74109/675195 co-relation queries the response was YES. Maximal size of possible extension queue 15700. Compared 2784385 event pairs, 20481 based on Foata normal form. 1/284743 useless extension candidates. Maximal degree in co-relation 779478. Up to 80013 conditions per place. [2021-08-13 12:51:27,354 INFO L132 encePairwiseOnDemand]: 240/255 looper letters, 501 selfloop transitions, 59 changer transitions 4/606 dead transitions. [2021-08-13 12:51:27,355 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 606 transitions, 3604 flow [2021-08-13 12:51:27,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-13 12:51:27,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-08-13 12:51:27,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3943 transitions. [2021-08-13 12:51:27,364 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.966421568627451 [2021-08-13 12:51:27,365 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3943 transitions. [2021-08-13 12:51:27,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3943 transitions. [2021-08-13 12:51:27,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 12:51:27,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3943 transitions. [2021-08-13 12:51:27,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 246.4375) internal successors, (3943), 16 states have internal predecessors, (3943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:51:27,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 255.0) internal successors, (4335), 17 states have internal predecessors, (4335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:51:27,399 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 255.0) internal successors, (4335), 17 states have internal predecessors, (4335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:51:27,399 INFO L348 CegarLoopForPetriNet]: 100 programPoint places, 56 predicate places. [2021-08-13 12:51:27,399 INFO L482 AbstractCegarLoop]: Abstraction has has 156 places, 606 transitions, 3604 flow [2021-08-13 12:51:27,400 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 239.9375) internal successors, (3839), 16 states have internal predecessors, (3839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:51:27,400 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 12:51:27,400 INFO L266 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, 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, 1] [2021-08-13 12:51:27,400 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-13 12:51:27,400 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-08-13 12:51:27,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 12:51:27,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1082902908, now seen corresponding path program 3 times [2021-08-13 12:51:27,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 12:51:27,401 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16306909] [2021-08-13 12:51:27,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 12:51:27,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 12:51:27,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:51:27,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 12:51:27,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:51:27,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 12:51:27,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 12:51:27,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 12:51:27,610 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 12:51:27,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 12:51:27,624 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 12:51:27,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 12:51:27,640 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 12:51:27,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 12:51:27,660 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 12:51:27,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 12:51:27,690 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-13 12:51:27,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-13 12:51:27,724 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-13 12:51:27,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 12:51:27,763 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-13 12:51:27,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 12:51:27,809 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-08-13 12:51:27,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-08-13 12:51:27,865 INFO L142 QuantifierPusher]: treesize reduction 81, result has 51.2 percent of original size [2021-08-13 12:51:27,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-08-13 12:51:27,927 INFO L142 QuantifierPusher]: treesize reduction 90, result has 50.8 percent of original size [2021-08-13 12:51:27,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-08-13 12:51:27,997 INFO L142 QuantifierPusher]: treesize reduction 108, result has 48.8 percent of original size [2021-08-13 12:51:27,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-08-13 12:51:28,071 INFO L142 QuantifierPusher]: treesize reduction 117, result has 47.3 percent of original size [2021-08-13 12:51:28,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-08-13 12:51:28,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 12:51:28,134 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 12:51:28,134 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16306909] [2021-08-13 12:51:28,134 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16306909] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 12:51:28,134 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 12:51:28,134 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-13 12:51:28,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982819307] [2021-08-13 12:51:28,135 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-08-13 12:51:28,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 12:51:28,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-13 12:51:28,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2021-08-13 12:51:28,137 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 255 [2021-08-13 12:51:28,138 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 606 transitions, 3604 flow. Second operand has 16 states, 16 states have (on average 239.9375) internal successors, (3839), 16 states have internal predecessors, (3839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 12:51:28,138 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 12:51:28,138 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 255 [2021-08-13 12:51:28,138 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand