/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-12 21:51:32,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-12 21:51:32,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-12 21:51:32,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-12 21:51:32,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-12 21:51:32,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-12 21:51:32,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-12 21:51:32,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-12 21:51:32,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-12 21:51:32,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-12 21:51:32,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-12 21:51:32,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-12 21:51:32,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-12 21:51:32,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-12 21:51:32,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-12 21:51:32,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-12 21:51:32,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-12 21:51:32,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-12 21:51:32,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-12 21:51:32,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-12 21:51:32,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-12 21:51:32,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-12 21:51:32,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-12 21:51:32,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-12 21:51:32,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-12 21:51:32,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-12 21:51:32,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-12 21:51:32,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-12 21:51:32,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-12 21:51:32,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-12 21:51:32,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-12 21:51:32,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-12 21:51:32,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-12 21:51:32,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-12 21:51:32,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-12 21:51:32,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-12 21:51:32,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-12 21:51:32,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-12 21:51:32,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-12 21:51:32,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-12 21:51:32,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-12 21:51:32,813 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.epf [2021-08-12 21:51:32,839 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-12 21:51:32,839 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-12 21:51:32,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-12 21:51:32,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-12 21:51:32,842 INFO L138 SettingsManager]: * Use SBE=true [2021-08-12 21:51:32,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-12 21:51:32,842 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-12 21:51:32,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-12 21:51:32,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-12 21:51:32,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-12 21:51:32,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-12 21:51:32,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-12 21:51:32,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-12 21:51:32,843 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-12 21:51:32,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-12 21:51:32,844 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-12 21:51:32,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-12 21:51:32,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-12 21:51:32,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-12 21:51:32,844 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-12 21:51:32,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-12 21:51:32,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-12 21:51:32,844 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-12 21:51:32,844 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-12 21:51:32,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-12 21:51:32,845 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-12 21:51:32,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-12 21:51:32,845 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-12 21:51:32,845 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-12 21:51:32,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-12 21:51:32,845 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-12 21:51:33,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-12 21:51:33,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-12 21:51:33,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-12 21:51:33,124 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-12 21:51:33,125 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-12 21:51:33,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_13.bpl [2021-08-12 21:51:33,127 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_13.bpl' [2021-08-12 21:51:33,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-12 21:51:33,161 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-12 21:51:33,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-12 21:51:33,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-12 21:51:33,165 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-12 21:51:33,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 09:51:33" (1/1) ... [2021-08-12 21:51:33,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 09:51:33" (1/1) ... [2021-08-12 21:51:33,188 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-12 21:51:33,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-12 21:51:33,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-12 21:51:33,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-12 21:51:33,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 09:51:33" (1/1) ... [2021-08-12 21:51:33,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 09:51:33" (1/1) ... [2021-08-12 21:51:33,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 09:51:33" (1/1) ... [2021-08-12 21:51:33,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 09:51:33" (1/1) ... [2021-08-12 21:51:33,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 09:51:33" (1/1) ... [2021-08-12 21:51:33,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 09:51:33" (1/1) ... [2021-08-12 21:51:33,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 09:51:33" (1/1) ... [2021-08-12 21:51:33,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-12 21:51:33,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-12 21:51:33,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-12 21:51:33,208 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-12 21:51:33,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 09:51:33" (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 [2021-08-12 21:51:33,263 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-08-12 21:51:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-08-12 21:51:33,263 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-08-12 21:51:33,263 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-08-12 21:51:33,263 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-08-12 21:51:33,263 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-08-12 21:51:33,264 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-08-12 21:51:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-08-12 21:51:33,264 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-08-12 21:51:33,264 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-08-12 21:51:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-08-12 21:51:33,264 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-08-12 21:51:33,264 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-08-12 21:51:33,264 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-08-12 21:51:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-08-12 21:51:33,265 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-08-12 21:51:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-08-12 21:51:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-08-12 21:51:33,265 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-12 21:51:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-12 21:51:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-12 21:51:33,265 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_12 given in one single declaration [2021-08-12 21:51:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure set_12 [2021-08-12 21:51:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure set_12 [2021-08-12 21:51:33,266 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-08-12 21:51:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-08-12 21:51:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-08-12 21:51:33,266 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-08-12 21:51:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-08-12 21:51:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-08-12 21:51:33,267 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2021-08-12 21:51:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2021-08-12 21:51:33,267 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2021-08-12 21:51:33,267 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-08-12 21:51:33,267 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-08-12 21:51:33,267 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-08-12 21:51:33,267 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_11 given in one single declaration [2021-08-12 21:51:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure set_11 [2021-08-12 21:51:33,268 INFO L138 BoogieDeclarations]: Found implementation of procedure set_11 [2021-08-12 21:51:33,268 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-08-12 21:51:33,268 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-08-12 21:51:33,268 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-08-12 21:51:33,269 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-12 21:51:33,459 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-12 21:51:33,460 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-12 21:51:33,461 INFO L202 PluginConnector]: Adding new model example_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 09:51:33 BoogieIcfgContainer [2021-08-12 21:51:33,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-12 21:51:33,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-12 21:51:33,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-12 21:51:33,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-12 21:51:33,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.08 09:51:33" (1/2) ... [2021-08-12 21:51:33,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140f742d and model type example_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.08 09:51:33, skipping insertion in model container [2021-08-12 21:51:33,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 09:51:33" (2/2) ... [2021-08-12 21:51:33,467 INFO L111 eAbstractionObserver]: Analyzing ICFG example_13.bpl [2021-08-12 21:51:33,471 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-12 21:51:33,471 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-12 21:51:33,472 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-12 21:51:33,712 INFO L149 ThreadInstanceAdder]: Constructed 169 joinOtherThreadTransitions. [2021-08-12 21:51:33,734 INFO L255 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-08-12 21:51:33,761 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-12 21:51:33,762 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-12 21:51:33,762 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-12 21:51:33,762 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-12 21:51:33,762 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-12 21:51:33,762 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-12 21:51:33,762 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-12 21:51:33,762 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-12 21:51:33,778 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 224 transitions, 1020 flow [2021-08-12 21:51:37,551 INFO L129 PetriNetUnfolder]: 45057/53290 cut-off events. [2021-08-12 21:51:37,551 INFO L130 PetriNetUnfolder]: For 53248/53248 co-relation queries the response was YES. [2021-08-12 21:51:37,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106578 conditions, 53290 events. 45057/53290 cut-off events. For 53248/53248 co-relation queries the response was YES. Maximal size of possible extension queue 1912. Compared 211898 event pairs, 0 based on Foata normal form. 0/53289 useless extension candidates. Maximal degree in co-relation 49214. Up to 12012 conditions per place. [2021-08-12 21:51:37,915 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 224 transitions, 1020 flow [2021-08-12 21:51:38,262 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 209 transitions, 964 flow [2021-08-12 21:51:41,394 INFO L129 PetriNetUnfolder]: 45057/53287 cut-off events. [2021-08-12 21:51:41,395 INFO L130 PetriNetUnfolder]: For 53248/53248 co-relation queries the response was YES. [2021-08-12 21:51:41,395 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:51:41,395 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] [2021-08-12 21:51:41,396 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_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]=== [2021-08-12 21:51:41,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:51:41,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1684891859, now seen corresponding path program 1 times [2021-08-12 21:51:41,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:51:41,406 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710588634] [2021-08-12 21:51:41,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:51:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:51:41,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:41,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:41,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:41,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:51:41,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:41,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:41,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:51:41,561 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:51:41,561 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710588634] [2021-08-12 21:51:41,562 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710588634] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:51:41,562 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:51:41,562 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-12 21:51:41,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722221571] [2021-08-12 21:51:41,569 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 21:51:41,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:51:41,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 21:51:41,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 21:51:41,586 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-12 21:51:41,592 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 209 transitions, 964 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:41,592 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:51:41,593 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-12 21:51:41,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:51:43,933 INFO L129 PetriNetUnfolder]: 27225/32946 cut-off events. [2021-08-12 21:51:43,934 INFO L130 PetriNetUnfolder]: For 43609/43609 co-relation queries the response was YES. [2021-08-12 21:51:44,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67480 conditions, 32946 events. 27225/32946 cut-off events. For 43609/43609 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 155229 event pairs, 0 based on Foata normal form. 2510/35456 useless extension candidates. Maximal degree in co-relation 49193. Up to 6435 conditions per place. [2021-08-12 21:51:44,400 INFO L132 encePairwiseOnDemand]: 216/224 looper letters, 6 selfloop transitions, 1 changer transitions 0/202 dead transitions. [2021-08-12 21:51:44,400 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 202 transitions, 943 flow [2021-08-12 21:51:44,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 21:51:44,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-12 21:51:44,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-08-12 21:51:44,409 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2021-08-12 21:51:44,410 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-08-12 21:51:44,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-08-12 21:51:44,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:51:44,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-08-12 21:51:44,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:44,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:44,420 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:44,420 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 2 predicate places. [2021-08-12 21:51:44,421 INFO L482 AbstractCegarLoop]: Abstraction has has 95 places, 202 transitions, 943 flow [2021-08-12 21:51:44,421 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:44,421 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:51:44,421 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] [2021-08-12 21:51:44,421 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-12 21:51:44,422 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_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]=== [2021-08-12 21:51:44,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:51:44,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1829449133, now seen corresponding path program 1 times [2021-08-12 21:51:44,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:51:44,422 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823480863] [2021-08-12 21:51:44,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:51:44,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:51:44,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:44,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:44,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:44,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:51:44,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:44,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:44,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:51:44,445 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:51:44,445 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823480863] [2021-08-12 21:51:44,445 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823480863] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:51:44,445 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:51:44,446 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-12 21:51:44,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774338332] [2021-08-12 21:51:44,447 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 21:51:44,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:51:44,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 21:51:44,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 21:51:44,449 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-12 21:51:44,449 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 202 transitions, 943 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:44,449 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:51:44,449 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-12 21:51:44,449 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:51:46,459 INFO L129 PetriNetUnfolder]: 27214/32934 cut-off events. [2021-08-12 21:51:46,459 INFO L130 PetriNetUnfolder]: For 41289/41289 co-relation queries the response was YES. [2021-08-12 21:51:46,619 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70067 conditions, 32934 events. 27214/32934 cut-off events. For 41289/41289 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 159277 event pairs, 0 based on Foata normal form. 1/32935 useless extension candidates. Maximal degree in co-relation 51216. Up to 6435 conditions per place. [2021-08-12 21:51:46,783 INFO L132 encePairwiseOnDemand]: 222/224 looper letters, 12 selfloop transitions, 1 changer transitions 0/201 dead transitions. [2021-08-12 21:51:46,784 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 201 transitions, 964 flow [2021-08-12 21:51:46,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 21:51:46,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-12 21:51:46,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-08-12 21:51:46,785 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2021-08-12 21:51:46,786 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-08-12 21:51:46,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-08-12 21:51:46,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:51:46,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-08-12 21:51:46,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:46,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:46,789 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:46,790 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 4 predicate places. [2021-08-12 21:51:46,790 INFO L482 AbstractCegarLoop]: Abstraction has has 97 places, 201 transitions, 964 flow [2021-08-12 21:51:46,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:46,790 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:51:46,790 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] [2021-08-12 21:51:46,790 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-12 21:51:46,791 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_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]=== [2021-08-12 21:51:46,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:51:46,791 INFO L82 PathProgramCache]: Analyzing trace with hash -456989215, now seen corresponding path program 1 times [2021-08-12 21:51:46,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:51:46,791 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406484916] [2021-08-12 21:51:46,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:51:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:51:46,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:46,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:46,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:46,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:51:46,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:46,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:46,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:51:46,818 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:51:46,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406484916] [2021-08-12 21:51:46,819 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406484916] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:51:46,819 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:51:46,819 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-12 21:51:46,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159107693] [2021-08-12 21:51:46,820 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 21:51:46,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:51:46,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 21:51:46,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 21:51:46,821 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-12 21:51:46,822 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 201 transitions, 964 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:46,822 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:51:46,822 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-12 21:51:46,822 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:51:47,582 INFO L129 PetriNetUnfolder]: 11947/14894 cut-off events. [2021-08-12 21:51:47,582 INFO L130 PetriNetUnfolder]: For 26175/26175 co-relation queries the response was YES. [2021-08-12 21:51:47,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31988 conditions, 14894 events. 11947/14894 cut-off events. For 26175/26175 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 70095 event pairs, 0 based on Foata normal form. 2310/17204 useless extension candidates. Maximal degree in co-relation 29298. Up to 2772 conditions per place. [2021-08-12 21:51:47,731 INFO L132 encePairwiseOnDemand]: 214/224 looper letters, 4 selfloop transitions, 1 changer transitions 0/192 dead transitions. [2021-08-12 21:51:47,731 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 192 transitions, 929 flow [2021-08-12 21:51:47,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 21:51:47,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-12 21:51:47,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-08-12 21:51:47,734 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2021-08-12 21:51:47,734 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-08-12 21:51:47,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-08-12 21:51:47,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:51:47,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-08-12 21:51:47,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:47,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:47,737 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:47,738 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 6 predicate places. [2021-08-12 21:51:47,738 INFO L482 AbstractCegarLoop]: Abstraction has has 99 places, 192 transitions, 929 flow [2021-08-12 21:51:47,738 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:47,738 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:51:47,738 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] [2021-08-12 21:51:47,738 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-12 21:51:47,738 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_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]=== [2021-08-12 21:51:47,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:51:47,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1995870537, now seen corresponding path program 1 times [2021-08-12 21:51:47,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:51:47,862 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500885347] [2021-08-12 21:51:47,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:51:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:51:47,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:47,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:47,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:47,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:51:47,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:47,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:47,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:51:47,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:51:47,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500885347] [2021-08-12 21:51:47,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500885347] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:51:47,902 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:51:47,902 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-12 21:51:47,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259048494] [2021-08-12 21:51:47,903 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 21:51:47,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:51:47,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 21:51:47,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 21:51:47,904 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-12 21:51:47,905 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 192 transitions, 929 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:47,905 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:51:47,905 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-12 21:51:47,905 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:51:48,704 INFO L129 PetriNetUnfolder]: 9388/11949 cut-off events. [2021-08-12 21:51:48,705 INFO L130 PetriNetUnfolder]: For 18706/18706 co-relation queries the response was YES. [2021-08-12 21:51:48,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26725 conditions, 11949 events. 9388/11949 cut-off events. For 18706/18706 co-relation queries the response was YES. Maximal size of possible extension queue 503. Compared 57628 event pairs, 0 based on Foata normal form. 385/12334 useless extension candidates. Maximal degree in co-relation 23966. Up to 2310 conditions per place. [2021-08-12 21:51:48,774 INFO L132 encePairwiseOnDemand]: 218/224 looper letters, 8 selfloop transitions, 1 changer transitions 0/187 dead transitions. [2021-08-12 21:51:48,775 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 187 transitions, 922 flow [2021-08-12 21:51:48,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 21:51:48,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-12 21:51:48,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-08-12 21:51:48,776 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2021-08-12 21:51:48,776 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-08-12 21:51:48,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-08-12 21:51:48,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:51:48,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-08-12 21:51:48,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:48,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:48,779 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:48,780 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 8 predicate places. [2021-08-12 21:51:48,780 INFO L482 AbstractCegarLoop]: Abstraction has has 101 places, 187 transitions, 922 flow [2021-08-12 21:51:48,780 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:48,780 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:51:48,780 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] [2021-08-12 21:51:48,780 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-12 21:51:48,781 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_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]=== [2021-08-12 21:51:48,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:51:48,793 INFO L82 PathProgramCache]: Analyzing trace with hash -31186223, now seen corresponding path program 1 times [2021-08-12 21:51:48,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:51:48,793 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056249194] [2021-08-12 21:51:48,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:51:48,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:51:48,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:48,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:48,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:48,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:51:48,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:48,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:48,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:51:48,821 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:51:48,821 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056249194] [2021-08-12 21:51:48,821 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056249194] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:51:48,821 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:51:48,822 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-12 21:51:48,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501285637] [2021-08-12 21:51:48,822 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 21:51:48,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:51:48,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 21:51:48,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 21:51:48,823 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-12 21:51:48,824 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 187 transitions, 922 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:48,824 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:51:48,824 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-12 21:51:48,824 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:51:49,360 INFO L129 PetriNetUnfolder]: 8552/10983 cut-off events. [2021-08-12 21:51:49,360 INFO L130 PetriNetUnfolder]: For 18549/18549 co-relation queries the response was YES. [2021-08-12 21:51:49,524 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25583 conditions, 10983 events. 8552/10983 cut-off events. For 18549/18549 co-relation queries the response was YES. Maximal size of possible extension queue 503. Compared 52718 event pairs, 0 based on Foata normal form. 129/11112 useless extension candidates. Maximal degree in co-relation 22755. Up to 2310 conditions per place. [2021-08-12 21:51:49,564 INFO L132 encePairwiseOnDemand]: 219/224 looper letters, 9 selfloop transitions, 1 changer transitions 0/183 dead transitions. [2021-08-12 21:51:49,564 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 183 transitions, 922 flow [2021-08-12 21:51:49,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 21:51:49,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-12 21:51:49,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-08-12 21:51:49,566 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2021-08-12 21:51:49,566 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-08-12 21:51:49,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-08-12 21:51:49,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:51:49,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-08-12 21:51:49,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:49,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:49,569 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:49,569 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 10 predicate places. [2021-08-12 21:51:49,569 INFO L482 AbstractCegarLoop]: Abstraction has has 103 places, 183 transitions, 922 flow [2021-08-12 21:51:49,569 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:49,569 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:51:49,570 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] [2021-08-12 21:51:49,570 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-12 21:51:49,570 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_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]=== [2021-08-12 21:51:49,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:51:49,570 INFO L82 PathProgramCache]: Analyzing trace with hash 515197517, now seen corresponding path program 1 times [2021-08-12 21:51:49,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:51:49,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066809467] [2021-08-12 21:51:49,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:51:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:51:49,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:49,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:49,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:49,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:51:49,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:49,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:49,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:51:49,598 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:51:49,598 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066809467] [2021-08-12 21:51:49,598 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066809467] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:51:49,598 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:51:49,598 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-12 21:51:49,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055514119] [2021-08-12 21:51:49,599 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 21:51:49,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:51:49,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 21:51:49,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 21:51:49,599 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-12 21:51:49,600 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 183 transitions, 922 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:49,600 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:51:49,600 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-12 21:51:49,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:51:49,803 INFO L129 PetriNetUnfolder]: 2836/3871 cut-off events. [2021-08-12 21:51:49,804 INFO L130 PetriNetUnfolder]: For 9071/9071 co-relation queries the response was YES. [2021-08-12 21:51:49,820 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9114 conditions, 3871 events. 2836/3871 cut-off events. For 9071/9071 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 18282 event pairs, 0 based on Foata normal form. 838/4709 useless extension candidates. Maximal degree in co-relation 8469. Up to 840 conditions per place. [2021-08-12 21:51:49,836 INFO L132 encePairwiseOnDemand]: 213/224 looper letters, 3 selfloop transitions, 1 changer transitions 0/173 dead transitions. [2021-08-12 21:51:49,836 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 173 transitions, 880 flow [2021-08-12 21:51:49,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 21:51:49,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-12 21:51:49,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-08-12 21:51:49,838 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2021-08-12 21:51:49,838 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-08-12 21:51:49,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-08-12 21:51:49,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:51:49,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-08-12 21:51:49,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:49,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:49,841 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:49,841 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 12 predicate places. [2021-08-12 21:51:49,841 INFO L482 AbstractCegarLoop]: Abstraction has has 105 places, 173 transitions, 880 flow [2021-08-12 21:51:49,841 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:49,841 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:51:49,842 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] [2021-08-12 21:51:49,842 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-12 21:51:49,842 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_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]=== [2021-08-12 21:51:49,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:51:49,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1713982477, now seen corresponding path program 1 times [2021-08-12 21:51:49,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:51:49,842 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029179698] [2021-08-12 21:51:49,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:51:49,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:51:49,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:49,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:49,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:49,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:51:49,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:49,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:49,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:51:49,865 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:51:49,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029179698] [2021-08-12 21:51:49,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029179698] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:51:49,865 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:51:49,865 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-12 21:51:49,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871133503] [2021-08-12 21:51:49,866 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 21:51:49,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:51:49,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 21:51:49,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 21:51:49,867 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-12 21:51:49,868 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 173 transitions, 880 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:49,868 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:51:49,868 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-12 21:51:49,868 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:51:49,939 INFO L129 PetriNetUnfolder]: 803/1196 cut-off events. [2021-08-12 21:51:49,939 INFO L130 PetriNetUnfolder]: For 3031/3031 co-relation queries the response was YES. [2021-08-12 21:51:49,944 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2812 conditions, 1196 events. 803/1196 cut-off events. For 3031/3031 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 5278 event pairs, 0 based on Foata normal form. 352/1548 useless extension candidates. Maximal degree in co-relation 2741. Up to 252 conditions per place. [2021-08-12 21:51:49,949 INFO L132 encePairwiseOnDemand]: 211/224 looper letters, 1 selfloop transitions, 1 changer transitions 0/149 dead transitions. [2021-08-12 21:51:49,949 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 149 transitions, 752 flow [2021-08-12 21:51:49,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 21:51:49,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-12 21:51:49,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-08-12 21:51:49,952 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2021-08-12 21:51:49,952 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-08-12 21:51:49,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-08-12 21:51:49,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:51:49,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-08-12 21:51:49,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:49,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:49,954 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:49,955 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 14 predicate places. [2021-08-12 21:51:49,955 INFO L482 AbstractCegarLoop]: Abstraction has has 107 places, 149 transitions, 752 flow [2021-08-12 21:51:49,955 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:49,955 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:51:49,955 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] [2021-08-12 21:51:49,955 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-12 21:51:49,955 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_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]=== [2021-08-12 21:51:49,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:51:49,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1498680427, now seen corresponding path program 1 times [2021-08-12 21:51:49,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:51:49,956 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648916468] [2021-08-12 21:51:49,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:51:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:51:49,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:49,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:49,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:49,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:51:49,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:49,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:49,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:51:49,978 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:51:49,978 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648916468] [2021-08-12 21:51:49,978 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648916468] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:51:49,978 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:51:49,978 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-12 21:51:49,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131532514] [2021-08-12 21:51:49,979 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 21:51:49,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:51:49,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 21:51:49,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 21:51:49,980 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-12 21:51:49,980 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 149 transitions, 752 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:49,980 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:51:49,980 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-12 21:51:49,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:51:50,054 INFO L129 PetriNetUnfolder]: 768/1154 cut-off events. [2021-08-12 21:51:50,054 INFO L130 PetriNetUnfolder]: For 2178/2178 co-relation queries the response was YES. [2021-08-12 21:51:50,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2843 conditions, 1154 events. 768/1154 cut-off events. For 2178/2178 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4851 event pairs, 0 based on Foata normal form. 6/1160 useless extension candidates. Maximal degree in co-relation 2770. Up to 252 conditions per place. [2021-08-12 21:51:50,064 INFO L132 encePairwiseOnDemand]: 221/224 looper letters, 10 selfloop transitions, 1 changer transitions 0/147 dead transitions. [2021-08-12 21:51:50,064 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 147 transitions, 764 flow [2021-08-12 21:51:50,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 21:51:50,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-12 21:51:50,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 643 transitions. [2021-08-12 21:51:50,065 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9568452380952381 [2021-08-12 21:51:50,065 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 643 transitions. [2021-08-12 21:51:50,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 643 transitions. [2021-08-12 21:51:50,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:51:50,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 643 transitions. [2021-08-12 21:51:50,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,068 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,068 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 16 predicate places. [2021-08-12 21:51:50,068 INFO L482 AbstractCegarLoop]: Abstraction has has 109 places, 147 transitions, 764 flow [2021-08-12 21:51:50,069 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,069 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:51:50,069 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] [2021-08-12 21:51:50,069 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-12 21:51:50,069 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_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]=== [2021-08-12 21:51:50,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:51:50,069 INFO L82 PathProgramCache]: Analyzing trace with hash 709864179, now seen corresponding path program 1 times [2021-08-12 21:51:50,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:51:50,070 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109656921] [2021-08-12 21:51:50,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:51:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:51:50,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:50,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:50,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:50,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:51:50,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:50,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:50,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:51:50,085 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:51:50,085 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109656921] [2021-08-12 21:51:50,085 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109656921] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:51:50,085 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:51:50,085 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-12 21:51:50,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077569289] [2021-08-12 21:51:50,086 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 21:51:50,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:51:50,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 21:51:50,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 21:51:50,087 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-12 21:51:50,087 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 147 transitions, 764 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,087 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:51:50,087 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-12 21:51:50,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:51:50,120 INFO L129 PetriNetUnfolder]: 193/353 cut-off events. [2021-08-12 21:51:50,120 INFO L130 PetriNetUnfolder]: For 982/982 co-relation queries the response was YES. [2021-08-12 21:51:50,122 INFO L84 FinitePrefix]: Finished finitePrefix Result has 877 conditions, 353 events. 193/353 cut-off events. For 982/982 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1235 event pairs, 0 based on Foata normal form. 118/471 useless extension candidates. Maximal degree in co-relation 805. Up to 63 conditions per place. [2021-08-12 21:51:50,123 INFO L132 encePairwiseOnDemand]: 212/224 looper letters, 1 selfloop transitions, 1 changer transitions 0/106 dead transitions. [2021-08-12 21:51:50,123 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 106 transitions, 527 flow [2021-08-12 21:51:50,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 21:51:50,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-12 21:51:50,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 643 transitions. [2021-08-12 21:51:50,125 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9568452380952381 [2021-08-12 21:51:50,125 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 643 transitions. [2021-08-12 21:51:50,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 643 transitions. [2021-08-12 21:51:50,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:51:50,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 643 transitions. [2021-08-12 21:51:50,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,127 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,127 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 18 predicate places. [2021-08-12 21:51:50,127 INFO L482 AbstractCegarLoop]: Abstraction has has 111 places, 106 transitions, 527 flow [2021-08-12 21:51:50,127 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,127 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:51:50,127 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] [2021-08-12 21:51:50,127 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-12 21:51:50,128 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_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]=== [2021-08-12 21:51:50,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:51:50,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1992659461, now seen corresponding path program 1 times [2021-08-12 21:51:50,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:51:50,128 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672142596] [2021-08-12 21:51:50,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:51:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:51:50,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:50,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:50,142 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:50,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:51:50,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:50,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:50,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:51:50,145 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:51:50,145 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672142596] [2021-08-12 21:51:50,145 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672142596] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:51:50,145 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:51:50,145 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-12 21:51:50,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367964204] [2021-08-12 21:51:50,146 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 21:51:50,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:51:50,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 21:51:50,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 21:51:50,147 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-12 21:51:50,147 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 106 transitions, 527 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,147 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:51:50,147 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-12 21:51:50,147 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:51:50,171 INFO L129 PetriNetUnfolder]: 148/293 cut-off events. [2021-08-12 21:51:50,171 INFO L130 PetriNetUnfolder]: For 619/619 co-relation queries the response was YES. [2021-08-12 21:51:50,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 769 conditions, 293 events. 148/293 cut-off events. For 619/619 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1008 event pairs, 0 based on Foata normal form. 10/303 useless extension candidates. Maximal degree in co-relation 695. Up to 63 conditions per place. [2021-08-12 21:51:50,173 INFO L132 encePairwiseOnDemand]: 220/224 looper letters, 6 selfloop transitions, 1 changer transitions 0/103 dead transitions. [2021-08-12 21:51:50,173 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 103 transitions, 526 flow [2021-08-12 21:51:50,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 21:51:50,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-12 21:51:50,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 640 transitions. [2021-08-12 21:51:50,174 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-12 21:51:50,175 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 640 transitions. [2021-08-12 21:51:50,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 640 transitions. [2021-08-12 21:51:50,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:51:50,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 640 transitions. [2021-08-12 21:51:50,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,177 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,177 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 20 predicate places. [2021-08-12 21:51:50,177 INFO L482 AbstractCegarLoop]: Abstraction has has 113 places, 103 transitions, 526 flow [2021-08-12 21:51:50,177 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,177 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:51:50,178 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] [2021-08-12 21:51:50,178 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-12 21:51:50,178 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_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]=== [2021-08-12 21:51:50,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:51:50,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1315175693, now seen corresponding path program 1 times [2021-08-12 21:51:50,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:51:50,178 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437538666] [2021-08-12 21:51:50,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:51:50,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:51:50,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:50,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:50,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:50,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:51:50,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:50,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:50,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:51:50,204 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:51:50,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437538666] [2021-08-12 21:51:50,205 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437538666] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:51:50,205 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:51:50,205 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-12 21:51:50,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365357481] [2021-08-12 21:51:50,205 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 21:51:50,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:51:50,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 21:51:50,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 21:51:50,206 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-12 21:51:50,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 103 transitions, 526 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,207 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:51:50,207 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-12 21:51:50,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:51:50,222 INFO L129 PetriNetUnfolder]: 36/125 cut-off events. [2021-08-12 21:51:50,222 INFO L130 PetriNetUnfolder]: For 293/293 co-relation queries the response was YES. [2021-08-12 21:51:50,222 INFO L84 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 125 events. 36/125 cut-off events. For 293/293 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 313 event pairs, 0 based on Foata normal form. 21/146 useless extension candidates. Maximal degree in co-relation 263. Up to 16 conditions per place. [2021-08-12 21:51:50,223 INFO L132 encePairwiseOnDemand]: 217/224 looper letters, 3 selfloop transitions, 1 changer transitions 0/97 dead transitions. [2021-08-12 21:51:50,223 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 97 transitions, 504 flow [2021-08-12 21:51:50,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 21:51:50,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-12 21:51:50,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 640 transitions. [2021-08-12 21:51:50,224 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-12 21:51:50,224 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 640 transitions. [2021-08-12 21:51:50,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 640 transitions. [2021-08-12 21:51:50,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:51:50,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 640 transitions. [2021-08-12 21:51:50,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,227 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,227 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 22 predicate places. [2021-08-12 21:51:50,227 INFO L482 AbstractCegarLoop]: Abstraction has has 115 places, 97 transitions, 504 flow [2021-08-12 21:51:50,227 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,227 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:51:50,227 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] [2021-08-12 21:51:50,227 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-12 21:51:50,227 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_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]=== [2021-08-12 21:51:50,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:51:50,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1468651589, now seen corresponding path program 1 times [2021-08-12 21:51:50,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:51:50,228 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347645880] [2021-08-12 21:51:50,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:51:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:51:50,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:50,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:50,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:50,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-12 21:51:50,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:50,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:50,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:51:50,249 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:51:50,250 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347645880] [2021-08-12 21:51:50,250 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347645880] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:51:50,250 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:51:50,250 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-12 21:51:50,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89339152] [2021-08-12 21:51:50,250 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 21:51:50,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:51:50,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 21:51:50,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 21:51:50,251 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-12 21:51:50,254 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 97 transitions, 504 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,254 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:51:50,254 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-12 21:51:50,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:51:50,270 INFO L129 PetriNetUnfolder]: 0/53 cut-off events. [2021-08-12 21:51:50,270 INFO L130 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2021-08-12 21:51:50,270 INFO L84 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 53 events. 0/53 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 8/61 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-08-12 21:51:50,271 INFO L132 encePairwiseOnDemand]: 215/224 looper letters, 1 selfloop transitions, 1 changer transitions 0/53 dead transitions. [2021-08-12 21:51:50,271 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 53 transitions, 232 flow [2021-08-12 21:51:50,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 21:51:50,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-12 21:51:50,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 640 transitions. [2021-08-12 21:51:50,272 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-12 21:51:50,272 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 640 transitions. [2021-08-12 21:51:50,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 640 transitions. [2021-08-12 21:51:50,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:51:50,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 640 transitions. [2021-08-12 21:51:50,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,275 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,275 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 24 predicate places. [2021-08-12 21:51:50,275 INFO L482 AbstractCegarLoop]: Abstraction has has 117 places, 53 transitions, 232 flow [2021-08-12 21:51:50,275 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:50,275 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:51:50,275 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] [2021-08-12 21:51:50,275 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-12 21:51:50,276 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_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]=== [2021-08-12 21:51:50,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:51:50,276 INFO L82 PathProgramCache]: Analyzing trace with hash 576343127, now seen corresponding path program 1 times [2021-08-12 21:51:50,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:51:50,276 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471791436] [2021-08-12 21:51:50,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:51:50,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:51:50,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:50,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:50,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:50,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 21:51:50,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:50,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 21:51:50,401 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-12 21:51:50,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-12 21:51:50,430 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-08-12 21:51:50,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-12 21:51:50,477 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-08-12 21:51:50,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-08-12 21:51:50,527 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-08-12 21:51:50,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-08-12 21:51:50,574 INFO L142 QuantifierPusher]: treesize reduction 27, result has 69.3 percent of original size [2021-08-12 21:51:50,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-12 21:51:50,726 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-08-12 21:51:50,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-08-12 21:51:50,805 INFO L142 QuantifierPusher]: treesize reduction 54, result has 57.5 percent of original size [2021-08-12 21:51:50,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-08-12 21:51:50,890 INFO L142 QuantifierPusher]: treesize reduction 63, result has 56.3 percent of original size [2021-08-12 21:51:50,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-12 21:51:50,984 INFO L142 QuantifierPusher]: treesize reduction 81, result has 51.2 percent of original size [2021-08-12 21:51:50,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-08-12 21:51:51,047 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.0 percent of original size [2021-08-12 21:51:51,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-08-12 21:51:51,121 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-08-12 21:51:51,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-08-12 21:51:51,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:51:51,183 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:51:51,183 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471791436] [2021-08-12 21:51:51,183 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471791436] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:51:51,183 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:51:51,183 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-08-12 21:51:51,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514760898] [2021-08-12 21:51:51,183 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-08-12 21:51:51,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:51:51,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-12 21:51:51,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-08-12 21:51:51,188 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 224 [2021-08-12 21:51:51,190 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 53 transitions, 232 flow. Second operand has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:51,190 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:51:51,190 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 224 [2021-08-12 21:51:51,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:51:58,265 INFO L129 PetriNetUnfolder]: 61443/86948 cut-off events. [2021-08-12 21:51:58,265 INFO L130 PetriNetUnfolder]: For 2548/2548 co-relation queries the response was YES. [2021-08-12 21:51:59,143 INFO L84 FinitePrefix]: Finished finitePrefix Result has 162494 conditions, 86948 events. 61443/86948 cut-off events. For 2548/2548 co-relation queries the response was YES. Maximal size of possible extension queue 6017. Compared 659813 event pairs, 20481 based on Foata normal form. 1/85939 useless extension candidates. Maximal degree in co-relation 162353. Up to 26625 conditions per place. [2021-08-12 21:51:59,596 INFO L132 encePairwiseOnDemand]: 210/224 looper letters, 90 selfloop transitions, 12 changer transitions 1/142 dead transitions. [2021-08-12 21:51:59,597 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 142 transitions, 616 flow [2021-08-12 21:51:59,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-12 21:51:59,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-08-12 21:51:59,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-08-12 21:51:59,602 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9639880952380953 [2021-08-12 21:51:59,602 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-08-12 21:51:59,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-08-12 21:51:59,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:51:59,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-08-12 21:51:59,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 215.93333333333334) internal successors, (3239), 15 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:59,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 224.0) internal successors, (3584), 16 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:59,611 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 224.0) internal successors, (3584), 16 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:59,611 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 38 predicate places. [2021-08-12 21:51:59,611 INFO L482 AbstractCegarLoop]: Abstraction has has 131 places, 142 transitions, 616 flow [2021-08-12 21:51:59,612 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:51:59,612 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:51:59,612 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] [2021-08-12 21:51:59,613 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-12 21:51:59,613 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_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]=== [2021-08-12 21:51:59,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:51:59,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1441724467, now seen corresponding path program 2 times [2021-08-12 21:51:59,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:51:59,614 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34824610] [2021-08-12 21:51:59,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:51:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:51:59,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:59,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:51:59,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:59,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 21:51:59,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:51:59,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 21:51:59,775 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-12 21:51:59,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 21:51:59,786 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-12 21:51:59,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-12 21:51:59,802 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-12 21:51:59,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-12 21:51:59,824 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-12 21:51:59,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-12 21:51:59,850 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-12 21:51:59,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-12 21:51:59,896 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-12 21:51:59,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-12 21:51:59,960 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-12 21:51:59,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-12 21:52:00,017 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-08-12 21:52:00,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-08-12 21:52:00,080 INFO L142 QuantifierPusher]: treesize reduction 81, result has 51.2 percent of original size [2021-08-12 21:52:00,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-08-12 21:52:00,180 INFO L142 QuantifierPusher]: treesize reduction 90, result has 50.8 percent of original size [2021-08-12 21:52:00,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-08-12 21:52:00,265 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-08-12 21:52:00,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-08-12 21:52:00,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:52:00,372 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:52:00,372 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34824610] [2021-08-12 21:52:00,372 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34824610] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:52:00,372 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:52:00,372 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-08-12 21:52:00,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185688720] [2021-08-12 21:52:00,373 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-08-12 21:52:00,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:52:00,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-12 21:52:00,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-08-12 21:52:00,376 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 224 [2021-08-12 21:52:00,378 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 142 transitions, 616 flow. Second operand has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:52:00,378 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:52:00,378 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 224 [2021-08-12 21:52:00,378 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:52:13,969 INFO L129 PetriNetUnfolder]: 83038/133105 cut-off events. [2021-08-12 21:52:13,969 INFO L130 PetriNetUnfolder]: For 34383/262987 co-relation queries the response was YES. [2021-08-12 21:52:15,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 359454 conditions, 133105 events. 83038/133105 cut-off events. For 34383/262987 co-relation queries the response was YES. Maximal size of possible extension queue 7793. Compared 1252517 event pairs, 9217 based on Foata normal form. 1/132100 useless extension candidates. Maximal degree in co-relation 359003. Up to 36908 conditions per place. [2021-08-12 21:52:16,350 INFO L132 encePairwiseOnDemand]: 210/224 looper letters, 436 selfloop transitions, 64 changer transitions 4/543 dead transitions. [2021-08-12 21:52:16,350 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 543 transitions, 3228 flow [2021-08-12 21:52:16,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-12 21:52:16,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-08-12 21:52:16,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-08-12 21:52:16,355 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9639880952380953 [2021-08-12 21:52:16,355 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-08-12 21:52:16,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-08-12 21:52:16,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:52:16,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-08-12 21:52:16,365 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 215.93333333333334) internal successors, (3239), 15 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:52:16,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 224.0) internal successors, (3584), 16 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:52:16,369 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 224.0) internal successors, (3584), 16 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:52:16,369 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 52 predicate places. [2021-08-12 21:52:16,369 INFO L482 AbstractCegarLoop]: Abstraction has has 145 places, 543 transitions, 3228 flow [2021-08-12 21:52:16,369 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:52:16,370 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:52:16,370 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] [2021-08-12 21:52:16,370 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-12 21:52:16,370 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_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]=== [2021-08-12 21:52:16,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:52:16,370 INFO L82 PathProgramCache]: Analyzing trace with hash -432007825, now seen corresponding path program 3 times [2021-08-12 21:52:16,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:52:16,371 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134125643] [2021-08-12 21:52:16,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:52:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:52:16,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:52:16,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:52:16,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:52:16,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 21:52:16,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:52:16,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 21:52:16,474 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-12 21:52:16,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 21:52:16,489 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-12 21:52:16,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-12 21:52:16,505 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-12 21:52:16,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-12 21:52:16,524 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-12 21:52:16,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-12 21:52:16,548 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-12 21:52:16,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-12 21:52:16,578 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-12 21:52:16,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-12 21:52:16,617 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-12 21:52:16,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-12 21:52:16,662 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-08-12 21:52:16,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-08-12 21:52:16,775 INFO L142 QuantifierPusher]: treesize reduction 90, result has 49.2 percent of original size [2021-08-12 21:52:16,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-08-12 21:52:16,845 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.0 percent of original size [2021-08-12 21:52:16,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-08-12 21:52:16,933 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-08-12 21:52:16,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-08-12 21:52:16,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:52:16,996 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:52:16,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134125643] [2021-08-12 21:52:16,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134125643] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:52:16,996 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:52:16,996 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-08-12 21:52:16,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914456438] [2021-08-12 21:52:16,997 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-08-12 21:52:16,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:52:16,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-12 21:52:16,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-08-12 21:52:16,999 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 224 [2021-08-12 21:52:17,001 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 543 transitions, 3228 flow. Second operand has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:52:17,001 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:52:17,001 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 224 [2021-08-12 21:52:17,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-12 21:52:44,833 INFO L129 PetriNetUnfolder]: 113906/183880 cut-off events. [2021-08-12 21:52:44,833 INFO L130 PetriNetUnfolder]: For 41592/642486 co-relation queries the response was YES. [2021-08-12 21:52:47,343 INFO L84 FinitePrefix]: Finished finitePrefix Result has 635263 conditions, 183880 events. 113906/183880 cut-off events. For 41592/642486 co-relation queries the response was YES. Maximal size of possible extension queue 12160. Compared 1826822 event pairs, 4097 based on Foata normal form. 3/182566 useless extension candidates. Maximal degree in co-relation 634103. Up to 52346 conditions per place. [2021-08-12 21:52:48,460 INFO L132 encePairwiseOnDemand]: 210/224 looper letters, 1435 selfloop transitions, 223 changer transitions 6/1703 dead transitions. [2021-08-12 21:52:48,460 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 1703 transitions, 13516 flow [2021-08-12 21:52:48,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-12 21:52:48,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-08-12 21:52:48,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-08-12 21:52:48,464 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9639880952380953 [2021-08-12 21:52:48,464 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-08-12 21:52:48,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-08-12 21:52:48,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-12 21:52:48,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-08-12 21:52:48,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 215.93333333333334) internal successors, (3239), 15 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:52:48,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 224.0) internal successors, (3584), 16 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:52:48,472 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 224.0) internal successors, (3584), 16 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:52:48,472 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 66 predicate places. [2021-08-12 21:52:48,472 INFO L482 AbstractCegarLoop]: Abstraction has has 159 places, 1703 transitions, 13516 flow [2021-08-12 21:52:48,473 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:52:48,473 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-12 21:52:48,473 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] [2021-08-12 21:52:48,473 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-12 21:52:48,473 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_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]=== [2021-08-12 21:52:48,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 21:52:48,474 INFO L82 PathProgramCache]: Analyzing trace with hash -426944949, now seen corresponding path program 4 times [2021-08-12 21:52:48,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 21:52:48,474 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725131478] [2021-08-12 21:52:48,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 21:52:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 21:52:48,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:52:48,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-12 21:52:48,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:52:48,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-12 21:52:48,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-12 21:52:48,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-12 21:52:48,551 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-12 21:52:48,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-12 21:52:48,561 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-12 21:52:48,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-12 21:52:48,576 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-12 21:52:48,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-12 21:52:48,595 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-12 21:52:48,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-12 21:52:48,629 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-12 21:52:48,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-12 21:52:48,659 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-12 21:52:48,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-12 21:52:48,701 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-12 21:52:48,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-12 21:52:48,745 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-12 21:52:48,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-12 21:52:48,794 INFO L142 QuantifierPusher]: treesize reduction 90, result has 49.2 percent of original size [2021-08-12 21:52:48,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-08-12 21:52:48,859 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.0 percent of original size [2021-08-12 21:52:48,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-08-12 21:52:48,924 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-08-12 21:52:48,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-08-12 21:52:48,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 21:52:48,981 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 21:52:48,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725131478] [2021-08-12 21:52:48,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725131478] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 21:52:48,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 21:52:48,982 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-08-12 21:52:48,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3885199] [2021-08-12 21:52:48,982 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-08-12 21:52:48,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 21:52:48,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-12 21:52:48,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-08-12 21:52:48,984 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 224 [2021-08-12 21:52:48,985 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 1703 transitions, 13516 flow. Second operand has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-12 21:52:48,985 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-12 21:52:48,985 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 224 [2021-08-12 21:52:48,985 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand