/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 04:38:52,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 04:38:52,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 04:38:52,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 04:38:52,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 04:38:52,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 04:38:52,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 04:38:52,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 04:38:52,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 04:38:52,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 04:38:52,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 04:38:52,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 04:38:52,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 04:38:52,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 04:38:52,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 04:38:52,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 04:38:52,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 04:38:52,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 04:38:52,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 04:38:52,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 04:38:52,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 04:38:52,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 04:38:52,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 04:38:52,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 04:38:52,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-11 04:38:52,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-11 04:38:52,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-11 04:38:52,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-11 04:38:52,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-11 04:38:52,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-11 04:38:52,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 04:38:52,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 04:38:52,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 04:38:52,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 04:38:52,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 04:38:52,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 04:38:52,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 04:38:52,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 04:38:52,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 04:38:52,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 04:38:52,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 04:38:52,320 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 [2021-03-11 04:38:52,351 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 04:38:52,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 04:38:52,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 04:38:52,353 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 04:38:52,353 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 04:38:52,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 04:38:52,354 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 04:38:52,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 04:38:52,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 04:38:52,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 04:38:52,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 04:38:52,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 04:38:52,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 04:38:52,355 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 04:38:52,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 04:38:52,355 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 04:38:52,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 04:38:52,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 04:38:52,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 04:38:52,356 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 04:38:52,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 04:38:52,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 04:38:52,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 04:38:52,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 04:38:52,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 04:38:52,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 04:38:52,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 04:38:52,357 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-11 04:38:52,357 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 04:38:52,357 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 04:38:52,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 04:38:52,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 04:38:52,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 04:38:52,617 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 04:38:52,618 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 04:38:52,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_13.bpl [2021-03-11 04:38:52,619 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_13.bpl' [2021-03-11 04:38:52,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 04:38:52,658 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 04:38:52,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 04:38:52,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 04:38:52,659 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 04:38:52,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:38:52" (1/1) ... [2021-03-11 04:38:52,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:38:52" (1/1) ... [2021-03-11 04:38:52,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 04:38:52,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 04:38:52,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 04:38:52,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 04:38:52,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:38:52" (1/1) ... [2021-03-11 04:38:52,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:38:52" (1/1) ... [2021-03-11 04:38:52,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:38:52" (1/1) ... [2021-03-11 04:38:52,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:38:52" (1/1) ... [2021-03-11 04:38:52,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:38:52" (1/1) ... [2021-03-11 04:38:52,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:38:52" (1/1) ... [2021-03-11 04:38:52,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:38:52" (1/1) ... [2021-03-11 04:38:52,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 04:38:52,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 04:38:52,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 04:38:52,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 04:38:52,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:38:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 04:38:52,735 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-03-11 04:38:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-03-11 04:38:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-03-11 04:38:52,736 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-03-11 04:38:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-03-11 04:38:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-03-11 04:38:52,737 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-03-11 04:38:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-03-11 04:38:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-03-11 04:38:52,737 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-03-11 04:38:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-03-11 04:38:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-03-11 04:38:52,737 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-03-11 04:38:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-03-11 04:38:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-03-11 04:38:52,738 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-03-11 04:38:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-03-11 04:38:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-03-11 04:38:52,738 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 04:38:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 04:38:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 04:38:52,739 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_12 given in one single declaration [2021-03-11 04:38:52,739 INFO L130 BoogieDeclarations]: Found specification of procedure set_12 [2021-03-11 04:38:52,739 INFO L138 BoogieDeclarations]: Found implementation of procedure set_12 [2021-03-11 04:38:52,739 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-03-11 04:38:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-03-11 04:38:52,740 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-03-11 04:38:52,740 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-03-11 04:38:52,740 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-03-11 04:38:52,740 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-03-11 04:38:52,741 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2021-03-11 04:38:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2021-03-11 04:38:52,741 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2021-03-11 04:38:52,741 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-03-11 04:38:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-03-11 04:38:52,741 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-03-11 04:38:52,741 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_11 given in one single declaration [2021-03-11 04:38:52,741 INFO L130 BoogieDeclarations]: Found specification of procedure set_11 [2021-03-11 04:38:52,741 INFO L138 BoogieDeclarations]: Found implementation of procedure set_11 [2021-03-11 04:38:52,742 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-03-11 04:38:52,742 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-03-11 04:38:52,742 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-03-11 04:38:52,742 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 04:38:52,927 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 04:38:52,927 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 04:38:52,928 INFO L202 PluginConnector]: Adding new model example_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:38:52 BoogieIcfgContainer [2021-03-11 04:38:52,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 04:38:52,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 04:38:52,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 04:38:52,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 04:38:52,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 04:38:52" (1/2) ... [2021-03-11 04:38:52,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340658f5 and model type example_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 04:38:52, skipping insertion in model container [2021-03-11 04:38:52,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 04:38:52" (2/2) ... [2021-03-11 04:38:52,932 INFO L111 eAbstractionObserver]: Analyzing ICFG example_13.bpl [2021-03-11 04:38:52,935 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 04:38:52,937 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 04:38:52,938 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 04:38:53,107 INFO L149 ThreadInstanceAdder]: Constructed 169 joinOtherThreadTransitions. [2021-03-11 04:38:53,118 INFO L253 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-03-11 04:38:53,131 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 04:38:53,131 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 04:38:53,131 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 04:38:53,131 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 04:38:53,131 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 04:38:53,131 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 04:38:53,132 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 04:38:53,132 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 04:38:53,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 224 transitions, 1020 flow [2021-03-11 04:38:56,377 INFO L129 PetriNetUnfolder]: 45057/53290 cut-off events. [2021-03-11 04:38:56,377 INFO L130 PetriNetUnfolder]: For 53248/53248 co-relation queries the response was YES. [2021-03-11 04:38:56,553 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. [2021-03-11 04:38:56,553 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 224 transitions, 1020 flow [2021-03-11 04:38:56,875 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 209 transitions, 964 flow [2021-03-11 04:38:59,206 INFO L129 PetriNetUnfolder]: 45057/53287 cut-off events. [2021-03-11 04:38:59,206 INFO L130 PetriNetUnfolder]: For 53248/53248 co-relation queries the response was YES. [2021-03-11 04:38:59,206 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:38:59,207 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:38:59,207 INFO L428 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]=== [2021-03-11 04:38:59,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:38:59,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1684891859, now seen corresponding path program 1 times [2021-03-11 04:38:59,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:38:59,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927185179] [2021-03-11 04:38:59,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:38:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:38:59,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:38:59,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:38:59,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:38:59,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:38:59,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:38:59,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:38:59,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:38:59,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927185179] [2021-03-11 04:38:59,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:38:59,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:38:59,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691162711] [2021-03-11 04:38:59,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:38:59,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:38:59,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:38:59,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:38:59,333 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-03-11 04:38:59,336 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) [2021-03-11 04:38:59,336 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:38:59,336 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-03-11 04:38:59,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:39:01,495 INFO L129 PetriNetUnfolder]: 27225/32946 cut-off events. [2021-03-11 04:39:01,495 INFO L130 PetriNetUnfolder]: For 43609/43609 co-relation queries the response was YES. [2021-03-11 04:39:01,640 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. [2021-03-11 04:39:01,817 INFO L132 encePairwiseOnDemand]: 216/224 looper letters, 6 selfloop transitions, 1 changer transitions 0/202 dead transitions. [2021-03-11 04:39:01,817 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 202 transitions, 943 flow [2021-03-11 04:39:01,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:39:01,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:39:01,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-03-11 04:39:01,831 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2021-03-11 04:39:01,831 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-03-11 04:39:01,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-03-11 04:39:01,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:39:01,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-03-11 04:39:01,839 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) [2021-03-11 04:39:01,846 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) [2021-03-11 04:39:01,847 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) [2021-03-11 04:39:01,848 INFO L185 Difference]: Start difference. First operand has 93 places, 209 transitions, 964 flow. Second operand 3 states and 644 transitions. [2021-03-11 04:39:01,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 202 transitions, 943 flow [2021-03-11 04:39:02,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 202 transitions, 593 flow, removed 0 selfloop flow, removed 26 redundant places. [2021-03-11 04:39:02,525 INFO L241 Difference]: Finished difference. Result has 69 places, 202 transitions, 581 flow [2021-03-11 04:39:02,526 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=579, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=581, PETRI_PLACES=69, PETRI_TRANSITIONS=202} [2021-03-11 04:39:02,527 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, -24 predicate places. [2021-03-11 04:39:02,527 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 202 transitions, 581 flow [2021-03-11 04:39:02,527 INFO L481 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) [2021-03-11 04:39:02,528 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:39:02,528 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:39:02,528 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 04:39:02,528 INFO L428 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]=== [2021-03-11 04:39:02,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:39:02,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1829449133, now seen corresponding path program 1 times [2021-03-11 04:39:02,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:39:02,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209994587] [2021-03-11 04:39:02,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:39:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:39:02,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:02,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:02,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:02,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:39:02,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:02,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:02,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:39:02,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209994587] [2021-03-11 04:39:02,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:39:02,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:39:02,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394025636] [2021-03-11 04:39:02,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:39:02,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:39:02,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:39:02,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:39:02,555 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-03-11 04:39:02,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 202 transitions, 581 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) [2021-03-11 04:39:02,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:39:02,556 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-03-11 04:39:02,556 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:39:03,733 INFO L129 PetriNetUnfolder]: 27214/32934 cut-off events. [2021-03-11 04:39:03,733 INFO L130 PetriNetUnfolder]: For 2610/2610 co-relation queries the response was YES. [2021-03-11 04:39:03,822 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35561 conditions, 32934 events. 27214/32934 cut-off events. For 2610/2610 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 155203 event pairs, 0 based on Foata normal form. 1/32935 useless extension candidates. Maximal degree in co-relation 35540. Up to 6435 conditions per place. [2021-03-11 04:39:03,965 INFO L132 encePairwiseOnDemand]: 222/224 looper letters, 12 selfloop transitions, 1 changer transitions 0/201 dead transitions. [2021-03-11 04:39:03,965 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 201 transitions, 604 flow [2021-03-11 04:39:03,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:39:03,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:39:03,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-03-11 04:39:03,967 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2021-03-11 04:39:03,967 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-03-11 04:39:03,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-03-11 04:39:03,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:39:03,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-03-11 04:39:03,968 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) [2021-03-11 04:39:03,969 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) [2021-03-11 04:39:03,970 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) [2021-03-11 04:39:03,970 INFO L185 Difference]: Start difference. First operand has 69 places, 202 transitions, 581 flow. Second operand 3 states and 644 transitions. [2021-03-11 04:39:03,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 201 transitions, 604 flow [2021-03-11 04:39:03,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 201 transitions, 603 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:39:03,975 INFO L241 Difference]: Finished difference. Result has 70 places, 201 transitions, 579 flow [2021-03-11 04:39:03,975 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=577, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=579, PETRI_PLACES=70, PETRI_TRANSITIONS=201} [2021-03-11 04:39:03,976 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, -23 predicate places. [2021-03-11 04:39:03,976 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 201 transitions, 579 flow [2021-03-11 04:39:03,976 INFO L481 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) [2021-03-11 04:39:03,976 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:39:03,977 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:39:03,977 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 04:39:03,977 INFO L428 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]=== [2021-03-11 04:39:03,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:39:03,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1850934371, now seen corresponding path program 1 times [2021-03-11 04:39:03,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:39:03,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495045988] [2021-03-11 04:39:03,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:39:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:39:03,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:03,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:03,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:03,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:39:03,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:03,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:03,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:39:03,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495045988] [2021-03-11 04:39:03,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:39:03,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:39:03,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229453077] [2021-03-11 04:39:03,998 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:39:03,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:39:03,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:39:03,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:39:04,000 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-03-11 04:39:04,000 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 201 transitions, 579 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) [2021-03-11 04:39:04,001 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:39:04,001 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-03-11 04:39:04,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:39:05,166 INFO L129 PetriNetUnfolder]: 27094/32802 cut-off events. [2021-03-11 04:39:05,166 INFO L130 PetriNetUnfolder]: For 2609/2609 co-relation queries the response was YES. [2021-03-11 04:39:05,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35419 conditions, 32802 events. 27094/32802 cut-off events. For 2609/2609 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 159132 event pairs, 0 based on Foata normal form. 11/32813 useless extension candidates. Maximal degree in co-relation 35411. Up to 6435 conditions per place. [2021-03-11 04:39:05,386 INFO L132 encePairwiseOnDemand]: 221/224 looper letters, 11 selfloop transitions, 1 changer transitions 0/199 dead transitions. [2021-03-11 04:39:05,386 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 199 transitions, 597 flow [2021-03-11 04:39:05,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:39:05,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:39:05,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-03-11 04:39:05,388 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2021-03-11 04:39:05,388 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-03-11 04:39:05,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-03-11 04:39:05,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:39:05,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-03-11 04:39:05,389 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) [2021-03-11 04:39:05,390 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) [2021-03-11 04:39:05,391 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) [2021-03-11 04:39:05,391 INFO L185 Difference]: Start difference. First operand has 70 places, 201 transitions, 579 flow. Second operand 3 states and 644 transitions. [2021-03-11 04:39:05,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 199 transitions, 597 flow [2021-03-11 04:39:05,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 199 transitions, 596 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:39:05,395 INFO L241 Difference]: Finished difference. Result has 71 places, 199 transitions, 574 flow [2021-03-11 04:39:05,395 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=574, PETRI_PLACES=71, PETRI_TRANSITIONS=199} [2021-03-11 04:39:05,395 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, -22 predicate places. [2021-03-11 04:39:05,395 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 199 transitions, 574 flow [2021-03-11 04:39:05,396 INFO L481 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) [2021-03-11 04:39:05,396 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:39:05,396 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:39:05,396 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 04:39:05,396 INFO L428 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]=== [2021-03-11 04:39:05,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:39:05,396 INFO L82 PathProgramCache]: Analyzing trace with hash 643613395, now seen corresponding path program 1 times [2021-03-11 04:39:05,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:39:05,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685706436] [2021-03-11 04:39:05,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:39:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:39:05,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:05,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:05,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:05,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:39:05,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:05,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:05,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:39:05,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685706436] [2021-03-11 04:39:05,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:39:05,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:39:05,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869290581] [2021-03-11 04:39:05,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:39:05,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:39:05,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:39:05,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:39:05,422 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-03-11 04:39:05,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 199 transitions, 574 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) [2021-03-11 04:39:05,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:39:05,422 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-03-11 04:39:05,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:39:06,300 INFO L129 PetriNetUnfolder]: 20098/24783 cut-off events. [2021-03-11 04:39:06,300 INFO L130 PetriNetUnfolder]: For 2598/2598 co-relation queries the response was YES. [2021-03-11 04:39:06,359 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26389 conditions, 24783 events. 20098/24783 cut-off events. For 2598/2598 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 119564 event pairs, 0 based on Foata normal form. 1012/25795 useless extension candidates. Maximal degree in co-relation 26381. Up to 6435 conditions per place. [2021-03-11 04:39:06,440 INFO L132 encePairwiseOnDemand]: 217/224 looper letters, 7 selfloop transitions, 1 changer transitions 0/193 dead transitions. [2021-03-11 04:39:06,440 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 193 transitions, 572 flow [2021-03-11 04:39:06,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:39:06,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:39:06,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-03-11 04:39:06,442 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2021-03-11 04:39:06,442 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-03-11 04:39:06,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-03-11 04:39:06,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:39:06,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-03-11 04:39:06,444 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) [2021-03-11 04:39:06,445 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) [2021-03-11 04:39:06,445 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) [2021-03-11 04:39:06,445 INFO L185 Difference]: Start difference. First operand has 71 places, 199 transitions, 574 flow. Second operand 3 states and 644 transitions. [2021-03-11 04:39:06,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 193 transitions, 572 flow [2021-03-11 04:39:06,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 193 transitions, 571 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:39:06,449 INFO L241 Difference]: Finished difference. Result has 72 places, 193 transitions, 557 flow [2021-03-11 04:39:06,449 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=557, PETRI_PLACES=72, PETRI_TRANSITIONS=193} [2021-03-11 04:39:06,449 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, -21 predicate places. [2021-03-11 04:39:06,449 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 193 transitions, 557 flow [2021-03-11 04:39:06,449 INFO L481 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) [2021-03-11 04:39:06,450 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:39:06,450 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:39:06,450 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 04:39:06,450 INFO L428 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]=== [2021-03-11 04:39:06,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:39:06,450 INFO L82 PathProgramCache]: Analyzing trace with hash -625581887, now seen corresponding path program 1 times [2021-03-11 04:39:06,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:39:06,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704578684] [2021-03-11 04:39:06,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:39:06,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:39:06,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:06,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:06,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:06,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:39:06,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:06,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:06,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:39:06,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704578684] [2021-03-11 04:39:06,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:39:06,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:39:06,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617401489] [2021-03-11 04:39:06,470 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:39:06,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:39:06,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:39:06,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:39:06,471 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-03-11 04:39:06,471 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 193 transitions, 557 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) [2021-03-11 04:39:06,471 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:39:06,471 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-03-11 04:39:06,472 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:39:07,113 INFO L129 PetriNetUnfolder]: 10028/12822 cut-off events. [2021-03-11 04:39:07,113 INFO L130 PetriNetUnfolder]: For 1961/1961 co-relation queries the response was YES. [2021-03-11 04:39:07,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13637 conditions, 12822 events. 10028/12822 cut-off events. For 1961/1961 co-relation queries the response was YES. Maximal size of possible extension queue 723. Compared 63395 event pairs, 0 based on Foata normal form. 1167/13989 useless extension candidates. Maximal degree in co-relation 13629. Up to 2860 conditions per place. [2021-03-11 04:39:07,163 INFO L132 encePairwiseOnDemand]: 215/224 looper letters, 5 selfloop transitions, 1 changer transitions 0/185 dead transitions. [2021-03-11 04:39:07,163 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 185 transitions, 545 flow [2021-03-11 04:39:07,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:39:07,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:39:07,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-03-11 04:39:07,164 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2021-03-11 04:39:07,164 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-03-11 04:39:07,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-03-11 04:39:07,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:39:07,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-03-11 04:39:07,166 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) [2021-03-11 04:39:07,167 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) [2021-03-11 04:39:07,167 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) [2021-03-11 04:39:07,167 INFO L185 Difference]: Start difference. First operand has 72 places, 193 transitions, 557 flow. Second operand 3 states and 644 transitions. [2021-03-11 04:39:07,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 185 transitions, 545 flow [2021-03-11 04:39:07,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 185 transitions, 544 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:39:07,170 INFO L241 Difference]: Finished difference. Result has 73 places, 185 transitions, 534 flow [2021-03-11 04:39:07,171 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=534, PETRI_PLACES=73, PETRI_TRANSITIONS=185} [2021-03-11 04:39:07,171 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, -20 predicate places. [2021-03-11 04:39:07,171 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 185 transitions, 534 flow [2021-03-11 04:39:07,171 INFO L481 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) [2021-03-11 04:39:07,175 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:39:07,175 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:39:07,175 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 04:39:07,175 INFO L428 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]=== [2021-03-11 04:39:07,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:39:07,175 INFO L82 PathProgramCache]: Analyzing trace with hash 481684687, now seen corresponding path program 1 times [2021-03-11 04:39:07,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:39:07,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382384405] [2021-03-11 04:39:07,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:39:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:39:07,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:07,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:39:07,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:07,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:39:07,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382384405] [2021-03-11 04:39:07,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:39:07,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:39:07,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299120217] [2021-03-11 04:39:07,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:39:07,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:39:07,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:39:07,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:39:07,194 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-03-11 04:39:07,195 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 185 transitions, 534 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) [2021-03-11 04:39:07,195 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:39:07,195 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-03-11 04:39:07,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:39:07,323 INFO L129 PetriNetUnfolder]: 3131/4211 cut-off events. [2021-03-11 04:39:07,324 INFO L130 PetriNetUnfolder]: For 1040/1040 co-relation queries the response was YES. [2021-03-11 04:39:07,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4234 conditions, 4211 events. 3131/4211 cut-off events. For 1040/1040 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 19693 event pairs, 0 based on Foata normal form. 1039/5250 useless extension candidates. Maximal degree in co-relation 4226. Up to 660 conditions per place. [2021-03-11 04:39:07,341 INFO L132 encePairwiseOnDemand]: 211/224 looper letters, 1 selfloop transitions, 1 changer transitions 0/161 dead transitions. [2021-03-11 04:39:07,341 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 161 transitions, 466 flow [2021-03-11 04:39:07,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:39:07,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:39:07,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-03-11 04:39:07,342 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2021-03-11 04:39:07,343 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-03-11 04:39:07,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-03-11 04:39:07,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:39:07,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-03-11 04:39:07,344 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) [2021-03-11 04:39:07,345 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) [2021-03-11 04:39:07,345 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) [2021-03-11 04:39:07,345 INFO L185 Difference]: Start difference. First operand has 73 places, 185 transitions, 534 flow. Second operand 3 states and 644 transitions. [2021-03-11 04:39:07,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 161 transitions, 466 flow [2021-03-11 04:39:07,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 161 transitions, 465 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:39:07,348 INFO L241 Difference]: Finished difference. Result has 74 places, 161 transitions, 463 flow [2021-03-11 04:39:07,348 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=463, PETRI_PLACES=74, PETRI_TRANSITIONS=161} [2021-03-11 04:39:07,348 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, -19 predicate places. [2021-03-11 04:39:07,348 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 161 transitions, 463 flow [2021-03-11 04:39:07,348 INFO L481 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) [2021-03-11 04:39:07,348 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:39:07,348 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:39:07,349 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 04:39:07,349 INFO L428 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]=== [2021-03-11 04:39:07,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:39:07,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1397343831, now seen corresponding path program 1 times [2021-03-11 04:39:07,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:39:07,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605285482] [2021-03-11 04:39:07,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:39:07,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:39:07,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:07,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:39:07,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:07,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:39:07,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605285482] [2021-03-11 04:39:07,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:39:07,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:39:07,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719792197] [2021-03-11 04:39:07,370 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:39:07,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:39:07,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:39:07,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:39:07,371 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-03-11 04:39:07,371 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 161 transitions, 463 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) [2021-03-11 04:39:07,372 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:39:07,372 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-03-11 04:39:07,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:39:07,444 INFO L129 PetriNetUnfolder]: 1080/1573 cut-off events. [2021-03-11 04:39:07,444 INFO L130 PetriNetUnfolder]: For 386/386 co-relation queries the response was YES. [2021-03-11 04:39:07,447 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1663 conditions, 1573 events. 1080/1573 cut-off events. For 386/386 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6605 event pairs, 0 based on Foata normal form. 319/1892 useless extension candidates. Maximal degree in co-relation 1655. Up to 280 conditions per place. [2021-03-11 04:39:07,450 INFO L132 encePairwiseOnDemand]: 214/224 looper letters, 3 selfloop transitions, 1 changer transitions 0/152 dead transitions. [2021-03-11 04:39:07,475 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 152 transitions, 444 flow [2021-03-11 04:39:07,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:39:07,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:39:07,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 643 transitions. [2021-03-11 04:39:07,476 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9568452380952381 [2021-03-11 04:39:07,476 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 643 transitions. [2021-03-11 04:39:07,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 643 transitions. [2021-03-11 04:39:07,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:39:07,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 643 transitions. [2021-03-11 04:39:07,478 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) [2021-03-11 04:39:07,479 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) [2021-03-11 04:39:07,479 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) [2021-03-11 04:39:07,479 INFO L185 Difference]: Start difference. First operand has 74 places, 161 transitions, 463 flow. Second operand 3 states and 643 transitions. [2021-03-11 04:39:07,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 152 transitions, 444 flow [2021-03-11 04:39:07,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 152 transitions, 443 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:39:07,481 INFO L241 Difference]: Finished difference. Result has 75 places, 152 transitions, 437 flow [2021-03-11 04:39:07,481 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=437, PETRI_PLACES=75, PETRI_TRANSITIONS=152} [2021-03-11 04:39:07,481 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, -18 predicate places. [2021-03-11 04:39:07,482 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 152 transitions, 437 flow [2021-03-11 04:39:07,482 INFO L481 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) [2021-03-11 04:39:07,482 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:39:07,482 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:39:07,482 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 04:39:07,482 INFO L428 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]=== [2021-03-11 04:39:07,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:39:07,482 INFO L82 PathProgramCache]: Analyzing trace with hash 915761397, now seen corresponding path program 1 times [2021-03-11 04:39:07,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:39:07,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586124338] [2021-03-11 04:39:07,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:39:07,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:39:07,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:07,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:39:07,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:07,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:39:07,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586124338] [2021-03-11 04:39:07,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:39:07,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:39:07,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892976522] [2021-03-11 04:39:07,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:39:07,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:39:07,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:39:07,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:39:07,519 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-03-11 04:39:07,520 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 152 transitions, 437 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) [2021-03-11 04:39:07,520 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:39:07,520 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-03-11 04:39:07,520 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:39:07,571 INFO L129 PetriNetUnfolder]: 940/1405 cut-off events. [2021-03-11 04:39:07,571 INFO L130 PetriNetUnfolder]: For 158/158 co-relation queries the response was YES. [2021-03-11 04:39:07,573 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1566 conditions, 1405 events. 940/1405 cut-off events. For 158/158 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6053 event pairs, 0 based on Foata normal form. 21/1426 useless extension candidates. Maximal degree in co-relation 1558. Up to 280 conditions per place. [2021-03-11 04:39:07,576 INFO L132 encePairwiseOnDemand]: 220/224 looper letters, 9 selfloop transitions, 1 changer transitions 0/149 dead transitions. [2021-03-11 04:39:07,576 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 149 transitions, 448 flow [2021-03-11 04:39:07,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:39:07,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:39:07,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 643 transitions. [2021-03-11 04:39:07,578 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9568452380952381 [2021-03-11 04:39:07,578 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 643 transitions. [2021-03-11 04:39:07,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 643 transitions. [2021-03-11 04:39:07,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:39:07,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 643 transitions. [2021-03-11 04:39:07,579 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) [2021-03-11 04:39:07,580 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) [2021-03-11 04:39:07,580 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) [2021-03-11 04:39:07,580 INFO L185 Difference]: Start difference. First operand has 75 places, 152 transitions, 437 flow. Second operand 3 states and 643 transitions. [2021-03-11 04:39:07,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 149 transitions, 448 flow [2021-03-11 04:39:07,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 149 transitions, 447 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:39:07,582 INFO L241 Difference]: Finished difference. Result has 76 places, 149 transitions, 429 flow [2021-03-11 04:39:07,582 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=429, PETRI_PLACES=76, PETRI_TRANSITIONS=149} [2021-03-11 04:39:07,583 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, -17 predicate places. [2021-03-11 04:39:07,583 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 149 transitions, 429 flow [2021-03-11 04:39:07,583 INFO L481 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) [2021-03-11 04:39:07,583 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:39:07,583 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:39:07,583 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 04:39:07,583 INFO L428 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]=== [2021-03-11 04:39:07,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:39:07,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1462250521, now seen corresponding path program 1 times [2021-03-11 04:39:07,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:39:07,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202239858] [2021-03-11 04:39:07,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:39:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:39:07,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:07,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:39:07,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:07,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:39:07,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202239858] [2021-03-11 04:39:07,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:39:07,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:39:07,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751088085] [2021-03-11 04:39:07,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:39:07,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:39:07,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:39:07,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:39:07,608 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-03-11 04:39:07,608 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 149 transitions, 429 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) [2021-03-11 04:39:07,608 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:39:07,608 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-03-11 04:39:07,608 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:39:07,647 INFO L129 PetriNetUnfolder]: 611/985 cut-off events. [2021-03-11 04:39:07,647 INFO L130 PetriNetUnfolder]: For 137/137 co-relation queries the response was YES. [2021-03-11 04:39:07,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1077 conditions, 985 events. 611/985 cut-off events. For 137/137 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4240 event pairs, 0 based on Foata normal form. 70/1055 useless extension candidates. Maximal degree in co-relation 1069. Up to 165 conditions per place. [2021-03-11 04:39:07,652 INFO L132 encePairwiseOnDemand]: 218/224 looper letters, 7 selfloop transitions, 1 changer transitions 0/144 dead transitions. [2021-03-11 04:39:07,652 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 144 transitions, 430 flow [2021-03-11 04:39:07,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:39:07,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:39:07,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 643 transitions. [2021-03-11 04:39:07,653 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9568452380952381 [2021-03-11 04:39:07,653 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 643 transitions. [2021-03-11 04:39:07,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 643 transitions. [2021-03-11 04:39:07,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:39:07,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 643 transitions. [2021-03-11 04:39:07,654 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) [2021-03-11 04:39:07,655 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) [2021-03-11 04:39:07,655 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) [2021-03-11 04:39:07,655 INFO L185 Difference]: Start difference. First operand has 76 places, 149 transitions, 429 flow. Second operand 3 states and 643 transitions. [2021-03-11 04:39:07,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 144 transitions, 430 flow [2021-03-11 04:39:07,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 144 transitions, 429 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:39:07,657 INFO L241 Difference]: Finished difference. Result has 77 places, 144 transitions, 415 flow [2021-03-11 04:39:07,658 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=415, PETRI_PLACES=77, PETRI_TRANSITIONS=144} [2021-03-11 04:39:07,658 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, -16 predicate places. [2021-03-11 04:39:07,658 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 144 transitions, 415 flow [2021-03-11 04:39:07,658 INFO L481 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) [2021-03-11 04:39:07,658 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:39:07,658 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:39:07,658 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 04:39:07,658 INFO L428 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]=== [2021-03-11 04:39:07,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:39:07,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1517691625, now seen corresponding path program 1 times [2021-03-11 04:39:07,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:39:07,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846895758] [2021-03-11 04:39:07,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:39:07,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:39:07,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:07,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:39:07,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:07,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:39:07,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846895758] [2021-03-11 04:39:07,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:39:07,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:39:07,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791143032] [2021-03-11 04:39:07,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:39:07,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:39:07,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:39:07,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:39:07,687 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-03-11 04:39:07,688 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 144 transitions, 415 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) [2021-03-11 04:39:07,688 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:39:07,688 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-03-11 04:39:07,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:39:07,721 INFO L129 PetriNetUnfolder]: 506/845 cut-off events. [2021-03-11 04:39:07,721 INFO L130 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2021-03-11 04:39:07,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 938 conditions, 845 events. 506/845 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3689 event pairs, 0 based on Foata normal form. 20/865 useless extension candidates. Maximal degree in co-relation 930. Up to 165 conditions per place. [2021-03-11 04:39:07,724 INFO L132 encePairwiseOnDemand]: 219/224 looper letters, 8 selfloop transitions, 1 changer transitions 0/140 dead transitions. [2021-03-11 04:39:07,724 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 140 transitions, 421 flow [2021-03-11 04:39:07,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:39:07,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:39:07,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 643 transitions. [2021-03-11 04:39:07,725 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9568452380952381 [2021-03-11 04:39:07,726 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 643 transitions. [2021-03-11 04:39:07,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 643 transitions. [2021-03-11 04:39:07,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:39:07,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 643 transitions. [2021-03-11 04:39:07,727 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) [2021-03-11 04:39:07,727 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) [2021-03-11 04:39:07,728 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) [2021-03-11 04:39:07,728 INFO L185 Difference]: Start difference. First operand has 77 places, 144 transitions, 415 flow. Second operand 3 states and 643 transitions. [2021-03-11 04:39:07,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 140 transitions, 421 flow [2021-03-11 04:39:07,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 140 transitions, 420 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:39:07,730 INFO L241 Difference]: Finished difference. Result has 78 places, 140 transitions, 404 flow [2021-03-11 04:39:07,730 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=404, PETRI_PLACES=78, PETRI_TRANSITIONS=140} [2021-03-11 04:39:07,730 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, -15 predicate places. [2021-03-11 04:39:07,730 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 140 transitions, 404 flow [2021-03-11 04:39:07,730 INFO L481 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) [2021-03-11 04:39:07,730 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:39:07,730 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:39:07,730 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 04:39:07,730 INFO L428 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]=== [2021-03-11 04:39:07,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:39:07,731 INFO L82 PathProgramCache]: Analyzing trace with hash -2010885033, now seen corresponding path program 1 times [2021-03-11 04:39:07,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:39:07,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752553870] [2021-03-11 04:39:07,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:39:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:39:07,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:07,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:39:07,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:07,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:39:07,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752553870] [2021-03-11 04:39:07,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:39:07,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:39:07,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166805585] [2021-03-11 04:39:07,745 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:39:07,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:39:07,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:39:07,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:39:07,746 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-03-11 04:39:07,747 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 140 transitions, 404 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) [2021-03-11 04:39:07,747 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:39:07,747 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-03-11 04:39:07,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:39:07,762 INFO L129 PetriNetUnfolder]: 55/163 cut-off events. [2021-03-11 04:39:07,762 INFO L130 PetriNetUnfolder]: For 67/67 co-relation queries the response was YES. [2021-03-11 04:39:07,763 INFO L84 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 163 events. 55/163 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 469 event pairs, 0 based on Foata normal form. 66/229 useless extension candidates. Maximal degree in co-relation 183. Up to 20 conditions per place. [2021-03-11 04:39:07,763 INFO L132 encePairwiseOnDemand]: 212/224 looper letters, 1 selfloop transitions, 1 changer transitions 0/118 dead transitions. [2021-03-11 04:39:07,763 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 118 transitions, 342 flow [2021-03-11 04:39:07,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:39:07,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:39:07,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 643 transitions. [2021-03-11 04:39:07,765 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9568452380952381 [2021-03-11 04:39:07,765 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 643 transitions. [2021-03-11 04:39:07,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 643 transitions. [2021-03-11 04:39:07,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:39:07,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 643 transitions. [2021-03-11 04:39:07,766 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) [2021-03-11 04:39:07,767 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) [2021-03-11 04:39:07,767 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) [2021-03-11 04:39:07,767 INFO L185 Difference]: Start difference. First operand has 78 places, 140 transitions, 404 flow. Second operand 3 states and 643 transitions. [2021-03-11 04:39:07,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 118 transitions, 342 flow [2021-03-11 04:39:07,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 118 transitions, 341 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:39:07,769 INFO L241 Difference]: Finished difference. Result has 79 places, 118 transitions, 339 flow [2021-03-11 04:39:07,769 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=339, PETRI_PLACES=79, PETRI_TRANSITIONS=118} [2021-03-11 04:39:07,769 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, -14 predicate places. [2021-03-11 04:39:07,769 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 118 transitions, 339 flow [2021-03-11 04:39:07,770 INFO L481 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) [2021-03-11 04:39:07,770 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:39:07,770 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:39:07,770 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 04:39:07,770 INFO L428 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]=== [2021-03-11 04:39:07,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:39:07,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1489379039, now seen corresponding path program 1 times [2021-03-11 04:39:07,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:39:07,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907141156] [2021-03-11 04:39:07,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:39:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:39:07,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:07,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 04:39:07,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:07,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:39:07,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907141156] [2021-03-11 04:39:07,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:39:07,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 04:39:07,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669855642] [2021-03-11 04:39:07,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 04:39:07,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:39:07,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 04:39:07,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 04:39:07,797 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-03-11 04:39:07,798 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 118 transitions, 339 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) [2021-03-11 04:39:07,798 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:39:07,798 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-03-11 04:39:07,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:39:07,808 INFO L129 PetriNetUnfolder]: 0/53 cut-off events. [2021-03-11 04:39:07,808 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-03-11 04:39:07,808 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 53 events. 0/53 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 10/63 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-11 04:39:07,808 INFO L132 encePairwiseOnDemand]: 213/224 looper letters, 1 selfloop transitions, 1 changer transitions 0/53 dead transitions. [2021-03-11 04:39:07,808 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 53 transitions, 148 flow [2021-03-11 04:39:07,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 04:39:07,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 04:39:07,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 642 transitions. [2021-03-11 04:39:07,809 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9553571428571429 [2021-03-11 04:39:07,810 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 642 transitions. [2021-03-11 04:39:07,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 642 transitions. [2021-03-11 04:39:07,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:39:07,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 642 transitions. [2021-03-11 04:39:07,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.0) internal successors, (642), 3 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 04:39:07,811 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) [2021-03-11 04:39:07,812 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) [2021-03-11 04:39:07,812 INFO L185 Difference]: Start difference. First operand has 79 places, 118 transitions, 339 flow. Second operand 3 states and 642 transitions. [2021-03-11 04:39:07,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 53 transitions, 148 flow [2021-03-11 04:39:07,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 53 transitions, 147 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:39:07,813 INFO L241 Difference]: Finished difference. Result has 80 places, 53 transitions, 145 flow [2021-03-11 04:39:07,813 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=80, PETRI_TRANSITIONS=53} [2021-03-11 04:39:07,813 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, -13 predicate places. [2021-03-11 04:39:07,813 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 53 transitions, 145 flow [2021-03-11 04:39:07,813 INFO L481 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) [2021-03-11 04:39:07,813 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:39:07,813 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:39:07,813 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 04:39:07,813 INFO L428 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]=== [2021-03-11 04:39:07,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:39:07,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1314889671, now seen corresponding path program 1 times [2021-03-11 04:39:07,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:39:07,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147370420] [2021-03-11 04:39:07,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:39:07,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:39:07,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:07,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:07,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:39:07,907 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 04:39:07,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 04:39:07,916 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-11 04:39:07,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 04:39:07,929 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 04:39:07,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 04:39:07,946 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-11 04:39:07,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 04:39:07,967 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 04:39:07,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 04:39:08,008 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 04:39:08,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 04:39:08,045 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 04:39:08,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 04:39:08,085 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 04:39:08,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 04:39:08,333 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 39 [2021-03-11 04:39:08,333 INFO L142 QuantifierPusher]: treesize reduction 63, result has 54.3 percent of original size [2021-03-11 04:39:08,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-11 04:39:08,412 INFO L142 QuantifierPusher]: treesize reduction 81, result has 51.2 percent of original size [2021-03-11 04:39:08,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-11 04:39:08,498 INFO L142 QuantifierPusher]: treesize reduction 90, result has 50.8 percent of original size [2021-03-11 04:39:08,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-11 04:39:08,577 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-11 04:39:08,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-11 04:39:08,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:39:08,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147370420] [2021-03-11 04:39:08,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:39:08,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 04:39:08,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371587427] [2021-03-11 04:39:08,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 04:39:08,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:39:08,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 04:39:08,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-11 04:39:08,651 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 224 [2021-03-11 04:39:08,652 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 53 transitions, 145 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) [2021-03-11 04:39:08,652 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:39:08,652 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 224 [2021-03-11 04:39:08,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:39:13,077 INFO L129 PetriNetUnfolder]: 61443/86415 cut-off events. [2021-03-11 04:39:13,077 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 04:39:13,747 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160184 conditions, 86415 events. 61443/86415 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5308. Compared 635305 event pairs, 20481 based on Foata normal form. 1/85439 useless extension candidates. Maximal degree in co-relation 160176. Up to 26625 conditions per place. [2021-03-11 04:39:14,049 INFO L132 encePairwiseOnDemand]: 210/224 looper letters, 90 selfloop transitions, 12 changer transitions 1/142 dead transitions. [2021-03-11 04:39:14,049 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 142 transitions, 529 flow [2021-03-11 04:39:14,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-11 04:39:14,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-11 04:39:14,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-03-11 04:39:14,053 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9639880952380953 [2021-03-11 04:39:14,053 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-03-11 04:39:14,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-03-11 04:39:14,054 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:39:14,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-03-11 04:39:14,058 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) [2021-03-11 04:39:14,060 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) [2021-03-11 04:39:14,061 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) [2021-03-11 04:39:14,061 INFO L185 Difference]: Start difference. First operand has 80 places, 53 transitions, 145 flow. Second operand 15 states and 3239 transitions. [2021-03-11 04:39:14,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 142 transitions, 529 flow [2021-03-11 04:39:14,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 142 transitions, 528 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 04:39:14,063 INFO L241 Difference]: Finished difference. Result has 106 places, 64 transitions, 239 flow [2021-03-11 04:39:14,064 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=239, PETRI_PLACES=106, PETRI_TRANSITIONS=64} [2021-03-11 04:39:14,064 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, 13 predicate places. [2021-03-11 04:39:14,064 INFO L480 AbstractCegarLoop]: Abstraction has has 106 places, 64 transitions, 239 flow [2021-03-11 04:39:14,065 INFO L481 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) [2021-03-11 04:39:14,065 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:39:14,065 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:39:14,065 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-11 04:39:14,065 INFO L428 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]=== [2021-03-11 04:39:14,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:39:14,065 INFO L82 PathProgramCache]: Analyzing trace with hash -907880719, now seen corresponding path program 2 times [2021-03-11 04:39:14,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:39:14,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571585795] [2021-03-11 04:39:14,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:39:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:39:14,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:14,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:14,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:14,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:39:14,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:14,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 04:39:14,161 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 04:39:14,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 04:39:14,171 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 04:39:14,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 04:39:14,186 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 04:39:14,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 04:39:14,205 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 04:39:14,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 04:39:14,230 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 04:39:14,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 04:39:14,263 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 04:39:14,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 04:39:14,298 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 04:39:14,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 04:39:14,344 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 04:39:14,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 04:39:14,396 INFO L142 QuantifierPusher]: treesize reduction 81, result has 51.2 percent of original size [2021-03-11 04:39:14,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-11 04:39:14,463 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.0 percent of original size [2021-03-11 04:39:14,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-11 04:39:14,533 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-11 04:39:14,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-11 04:39:14,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:39:14,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571585795] [2021-03-11 04:39:14,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:39:14,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 04:39:14,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729430925] [2021-03-11 04:39:14,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 04:39:14,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:39:14,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 04:39:14,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-11 04:39:14,595 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 224 [2021-03-11 04:39:14,601 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 64 transitions, 239 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) [2021-03-11 04:39:14,602 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:39:14,602 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 224 [2021-03-11 04:39:14,602 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:39:27,346 INFO L129 PetriNetUnfolder]: 90131/147761 cut-off events. [2021-03-11 04:39:27,346 INFO L130 PetriNetUnfolder]: For 124598/124598 co-relation queries the response was YES. [2021-03-11 04:39:28,575 INFO L84 FinitePrefix]: Finished finitePrefix Result has 375063 conditions, 147761 events. 90131/147761 cut-off events. For 124598/124598 co-relation queries the response was YES. Maximal size of possible extension queue 9006. Compared 1473301 event pairs, 20481 based on Foata normal form. 1/146763 useless extension candidates. Maximal degree in co-relation 375042. Up to 44967 conditions per place. [2021-03-11 04:39:29,220 INFO L132 encePairwiseOnDemand]: 210/224 looper letters, 127 selfloop transitions, 19 changer transitions 1/186 dead transitions. [2021-03-11 04:39:29,220 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 186 transitions, 1099 flow [2021-03-11 04:39:29,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-11 04:39:29,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-11 04:39:29,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-03-11 04:39:29,224 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9639880952380953 [2021-03-11 04:39:29,224 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-03-11 04:39:29,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-03-11 04:39:29,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:39:29,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-03-11 04:39:29,229 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) [2021-03-11 04:39:29,231 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) [2021-03-11 04:39:29,232 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) [2021-03-11 04:39:29,232 INFO L185 Difference]: Start difference. First operand has 106 places, 64 transitions, 239 flow. Second operand 15 states and 3239 transitions. [2021-03-11 04:39:29,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 186 transitions, 1099 flow [2021-03-11 04:39:29,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 186 transitions, 1062 flow, removed 12 selfloop flow, removed 2 redundant places. [2021-03-11 04:39:29,311 INFO L241 Difference]: Finished difference. Result has 130 places, 80 transitions, 420 flow [2021-03-11 04:39:29,311 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=420, PETRI_PLACES=130, PETRI_TRANSITIONS=80} [2021-03-11 04:39:29,311 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, 37 predicate places. [2021-03-11 04:39:29,311 INFO L480 AbstractCegarLoop]: Abstraction has has 130 places, 80 transitions, 420 flow [2021-03-11 04:39:29,312 INFO L481 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) [2021-03-11 04:39:29,312 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:39:29,312 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:39:29,312 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-11 04:39:29,312 INFO L428 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]=== [2021-03-11 04:39:29,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:39:29,313 INFO L82 PathProgramCache]: Analyzing trace with hash -2072690253, now seen corresponding path program 3 times [2021-03-11 04:39:29,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:39:29,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124407585] [2021-03-11 04:39:29,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:39:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:39:29,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:29,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:39:29,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:29,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:39:29,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:39:29,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 04:39:29,389 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 04:39:29,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 04:39:29,400 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 04:39:29,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 04:39:29,414 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 04:39:29,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 04:39:29,433 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 04:39:29,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 04:39:29,460 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 04:39:29,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 04:39:29,489 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 04:39:29,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 04:39:29,527 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 04:39:29,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 04:39:29,573 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 04:39:29,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 04:39:29,630 INFO L142 QuantifierPusher]: treesize reduction 90, result has 49.2 percent of original size [2021-03-11 04:39:29,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-11 04:39:29,695 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.0 percent of original size [2021-03-11 04:39:29,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-11 04:39:29,770 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-11 04:39:29,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-11 04:39:29,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:39:29,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124407585] [2021-03-11 04:39:29,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:39:29,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 04:39:29,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476457920] [2021-03-11 04:39:29,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 04:39:29,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:39:29,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 04:39:29,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-11 04:39:29,842 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 224 [2021-03-11 04:39:29,843 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 80 transitions, 420 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) [2021-03-11 04:39:29,843 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:39:29,843 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 224 [2021-03-11 04:39:29,844 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:39:52,338 INFO L129 PetriNetUnfolder]: 121894/205499 cut-off events. [2021-03-11 04:39:52,338 INFO L130 PetriNetUnfolder]: For 492894/495224 co-relation queries the response was YES. [2021-03-11 04:39:54,580 INFO L84 FinitePrefix]: Finished finitePrefix Result has 678247 conditions, 205499 events. 121894/205499 cut-off events. For 492894/495224 co-relation queries the response was YES. Maximal size of possible extension queue 13720. Compared 2217679 event pairs, 34823 based on Foata normal form. 1/204482 useless extension candidates. Maximal degree in co-relation 678214. Up to 59808 conditions per place. [2021-03-11 04:39:55,632 INFO L132 encePairwiseOnDemand]: 210/224 looper letters, 151 selfloop transitions, 30 changer transitions 2/222 dead transitions. [2021-03-11 04:39:55,632 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 222 transitions, 1752 flow [2021-03-11 04:39:55,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-11 04:39:55,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-11 04:39:55,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-03-11 04:39:55,636 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9639880952380953 [2021-03-11 04:39:55,636 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-03-11 04:39:55,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-03-11 04:39:55,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:39:55,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-03-11 04:39:55,640 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) [2021-03-11 04:39:55,643 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) [2021-03-11 04:39:55,643 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) [2021-03-11 04:39:55,643 INFO L185 Difference]: Start difference. First operand has 130 places, 80 transitions, 420 flow. Second operand 15 states and 3239 transitions. [2021-03-11 04:39:55,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 222 transitions, 1752 flow [2021-03-11 04:40:06,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 222 transitions, 1674 flow, removed 27 selfloop flow, removed 2 redundant places. [2021-03-11 04:40:06,449 INFO L241 Difference]: Finished difference. Result has 154 places, 105 transitions, 756 flow [2021-03-11 04:40:06,450 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=756, PETRI_PLACES=154, PETRI_TRANSITIONS=105} [2021-03-11 04:40:06,450 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, 61 predicate places. [2021-03-11 04:40:06,450 INFO L480 AbstractCegarLoop]: Abstraction has has 154 places, 105 transitions, 756 flow [2021-03-11 04:40:06,450 INFO L481 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) [2021-03-11 04:40:06,450 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:40:06,450 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:40:06,451 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-11 04:40:06,451 INFO L428 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]=== [2021-03-11 04:40:06,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:40:06,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1359779521, now seen corresponding path program 4 times [2021-03-11 04:40:06,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:40:06,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044404898] [2021-03-11 04:40:06,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:40:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:40:06,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:40:06,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:40:06,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:40:06,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:40:06,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:40:06,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 04:40:06,506 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 04:40:06,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 04:40:06,516 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 04:40:06,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 04:40:06,531 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 04:40:06,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 04:40:06,549 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 04:40:06,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 04:40:06,573 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 04:40:06,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 04:40:06,602 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 04:40:06,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 04:40:06,638 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 04:40:06,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 04:40:06,687 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-03-11 04:40:06,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-11 04:40:06,760 INFO L142 QuantifierPusher]: treesize reduction 90, result has 49.2 percent of original size [2021-03-11 04:40:06,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-11 04:40:06,815 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.0 percent of original size [2021-03-11 04:40:06,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-11 04:40:06,883 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-11 04:40:06,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-11 04:40:06,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:40:06,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044404898] [2021-03-11 04:40:06,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:40:06,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 04:40:06,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220702341] [2021-03-11 04:40:06,936 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 04:40:06,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:40:06,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 04:40:06,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-11 04:40:06,938 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 224 [2021-03-11 04:40:06,939 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 105 transitions, 756 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) [2021-03-11 04:40:06,939 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:40:06,939 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 224 [2021-03-11 04:40:06,939 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:40:48,074 INFO L129 PetriNetUnfolder]: 167750/286544 cut-off events. [2021-03-11 04:40:48,075 INFO L130 PetriNetUnfolder]: For 1359929/1363313 co-relation queries the response was YES. [2021-03-11 04:40:51,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1158977 conditions, 286544 events. 167750/286544 cut-off events. For 1359929/1363313 co-relation queries the response was YES. Maximal size of possible extension queue 20555. Compared 3301972 event pairs, 51734 based on Foata normal form. 1/285187 useless extension candidates. Maximal degree in co-relation 1158932. Up to 82349 conditions per place. [2021-03-11 04:40:53,337 INFO L132 encePairwiseOnDemand]: 210/224 looper letters, 189 selfloop transitions, 50 changer transitions 2/280 dead transitions. [2021-03-11 04:40:53,337 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 280 transitions, 2770 flow [2021-03-11 04:40:53,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-11 04:40:53,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-11 04:40:53,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-03-11 04:40:53,341 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9639880952380953 [2021-03-11 04:40:53,341 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-03-11 04:40:53,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-03-11 04:40:53,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:40:53,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-03-11 04:40:53,345 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) [2021-03-11 04:40:53,347 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) [2021-03-11 04:40:53,347 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) [2021-03-11 04:40:53,347 INFO L185 Difference]: Start difference. First operand has 154 places, 105 transitions, 756 flow. Second operand 15 states and 3239 transitions. [2021-03-11 04:40:53,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 280 transitions, 2770 flow [2021-03-11 04:41:20,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 280 transitions, 2665 flow, removed 40 selfloop flow, removed 3 redundant places. [2021-03-11 04:41:20,025 INFO L241 Difference]: Finished difference. Result has 177 places, 147 transitions, 1420 flow [2021-03-11 04:41:20,025 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1420, PETRI_PLACES=177, PETRI_TRANSITIONS=147} [2021-03-11 04:41:20,025 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, 84 predicate places. [2021-03-11 04:41:20,025 INFO L480 AbstractCegarLoop]: Abstraction has has 177 places, 147 transitions, 1420 flow [2021-03-11 04:41:20,025 INFO L481 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) [2021-03-11 04:41:20,025 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:41:20,026 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:41:20,026 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-11 04:41:20,026 INFO L428 AbstractCegarLoop]: === Iteration 17 === [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]=== [2021-03-11 04:41:20,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:41:20,026 INFO L82 PathProgramCache]: Analyzing trace with hash -397503857, now seen corresponding path program 5 times [2021-03-11 04:41:20,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:41:20,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151136240] [2021-03-11 04:41:20,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:41:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:41:20,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:41:20,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:41:20,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:41:20,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:41:20,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:41:20,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 04:41:20,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:41:20,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 04:41:20,091 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 04:41:20,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 04:41:20,104 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 04:41:20,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 04:41:20,121 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 04:41:20,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 04:41:20,143 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 04:41:20,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 04:41:20,173 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 04:41:20,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 04:41:20,210 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 04:41:20,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 04:41:20,253 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 04:41:20,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 04:41:20,305 INFO L142 QuantifierPusher]: treesize reduction 81, result has 52.9 percent of original size [2021-03-11 04:41:20,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-11 04:41:20,407 INFO L142 QuantifierPusher]: treesize reduction 90, result has 50.8 percent of original size [2021-03-11 04:41:20,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-11 04:41:20,475 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-11 04:41:20,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-11 04:41:20,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:41:20,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151136240] [2021-03-11 04:41:20,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:41:20,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 04:41:20,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943694739] [2021-03-11 04:41:20,533 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 04:41:20,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:41:20,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 04:41:20,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-11 04:41:20,534 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 224 [2021-03-11 04:41:20,536 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 147 transitions, 1420 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) [2021-03-11 04:41:20,536 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:41:20,536 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 224 [2021-03-11 04:41:20,536 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 04:42:35,343 INFO L129 PetriNetUnfolder]: 234275/410446 cut-off events. [2021-03-11 04:42:35,343 INFO L130 PetriNetUnfolder]: For 3109412/3115382 co-relation queries the response was YES. [2021-03-11 04:42:41,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1935068 conditions, 410446 events. 234275/410446 cut-off events. For 3109412/3115382 co-relation queries the response was YES. Maximal size of possible extension queue 31440. Compared 5086688 event pairs, 75198 based on Foata normal form. 1/408529 useless extension candidates. Maximal degree in co-relation 1935012. Up to 114803 conditions per place. [2021-03-11 04:42:44,401 INFO L132 encePairwiseOnDemand]: 210/224 looper letters, 312 selfloop transitions, 54 changer transitions 1/406 dead transitions. [2021-03-11 04:42:44,401 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 406 transitions, 5021 flow [2021-03-11 04:42:44,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-11 04:42:44,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-11 04:42:44,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-03-11 04:42:44,404 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9639880952380953 [2021-03-11 04:42:44,404 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-03-11 04:42:44,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-03-11 04:42:44,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 04:42:44,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-03-11 04:42:44,408 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) [2021-03-11 04:42:44,411 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) [2021-03-11 04:42:44,411 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) [2021-03-11 04:42:44,411 INFO L185 Difference]: Start difference. First operand has 177 places, 147 transitions, 1420 flow. Second operand 15 states and 3239 transitions. [2021-03-11 04:42:44,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 406 transitions, 5021 flow [2021-03-11 04:44:01,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 406 transitions, 4886 flow, removed 52 selfloop flow, removed 3 redundant places. [2021-03-11 04:44:01,799 INFO L241 Difference]: Finished difference. Result has 200 places, 188 transitions, 2142 flow [2021-03-11 04:44:01,800 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=1392, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2142, PETRI_PLACES=200, PETRI_TRANSITIONS=188} [2021-03-11 04:44:01,800 INFO L335 CegarLoopForPetriNet]: 93 programPoint places, 107 predicate places. [2021-03-11 04:44:01,800 INFO L480 AbstractCegarLoop]: Abstraction has has 200 places, 188 transitions, 2142 flow [2021-03-11 04:44:01,800 INFO L481 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) [2021-03-11 04:44:01,800 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 04:44:01,800 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 04:44:01,800 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-11 04:44:01,800 INFO L428 AbstractCegarLoop]: === Iteration 18 === [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]=== [2021-03-11 04:44:01,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 04:44:01,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1880934613, now seen corresponding path program 6 times [2021-03-11 04:44:01,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 04:44:01,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268000789] [2021-03-11 04:44:01,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 04:44:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 04:44:01,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:44:01,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 04:44:01,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:44:01,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 04:44:01,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:44:01,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 04:44:01,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 04:44:01,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 04:44:01,860 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 04:44:01,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 04:44:01,873 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 04:44:01,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 04:44:01,890 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 04:44:01,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 04:44:01,911 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 04:44:01,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 04:44:01,937 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 04:44:01,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 04:44:01,971 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 04:44:01,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 04:44:02,015 INFO L142 QuantifierPusher]: treesize reduction 63, result has 54.3 percent of original size [2021-03-11 04:44:02,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-11 04:44:02,067 INFO L142 QuantifierPusher]: treesize reduction 81, result has 52.9 percent of original size [2021-03-11 04:44:02,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-11 04:44:02,169 INFO L142 QuantifierPusher]: treesize reduction 90, result has 50.8 percent of original size [2021-03-11 04:44:02,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-11 04:44:02,233 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-11 04:44:02,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-11 04:44:02,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 04:44:02,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268000789] [2021-03-11 04:44:02,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 04:44:02,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 04:44:02,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084534802] [2021-03-11 04:44:02,290 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 04:44:02,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 04:44:02,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 04:44:02,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-11 04:44:02,291 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 224 [2021-03-11 04:44:02,292 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 188 transitions, 2142 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) [2021-03-11 04:44:02,292 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 04:44:02,292 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 224 [2021-03-11 04:44:02,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand