/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 18:46:55,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 18:46:55,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 18:46:55,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 18:46:55,284 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 18:46:55,285 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 18:46:55,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 18:46:55,288 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 18:46:55,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 18:46:55,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 18:46:55,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 18:46:55,292 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 18:46:55,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 18:46:55,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 18:46:55,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 18:46:55,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 18:46:55,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 18:46:55,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 18:46:55,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 18:46:55,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 18:46:55,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 18:46:55,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 18:46:55,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 18:46:55,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 18:46:55,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 18:46:55,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 18:46:55,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 18:46:55,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 18:46:55,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 18:46:55,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 18:46:55,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 18:46:55,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 18:46:55,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 18:46:55,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 18:46:55,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 18:46:55,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 18:46:55,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 18:46:55,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 18:46:55,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 18:46:55,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 18:46:55,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 18:46:55,316 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-11 18:46:55,347 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 18:46:55,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 18:46:55,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 18:46:55,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 18:46:55,349 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 18:46:55,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 18:46:55,349 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 18:46:55,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 18:46:55,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 18:46:55,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 18:46:55,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 18:46:55,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 18:46:55,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 18:46:55,351 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 18:46:55,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 18:46:55,351 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 18:46:55,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 18:46:55,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 18:46:55,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 18:46:55,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 18:46:55,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 18:46:55,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 18:46:55,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 18:46:55,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 18:46:55,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 18:46:55,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 18:46:55,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 18:46:55,353 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 18:46:55,353 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 18:46:55,354 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 18:46:55,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 18:46:55,686 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 18:46:55,689 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 18:46:55,691 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 18:46:55,691 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 18:46:55,692 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_power.opt.i [2020-10-11 18:46:55,753 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80bb8a341/3bd66bd56c364a54a89db5639bd97fad/FLAG9057beb37 [2020-10-11 18:46:56,257 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 18:46:56,258 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_power.opt.i [2020-10-11 18:46:56,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80bb8a341/3bd66bd56c364a54a89db5639bd97fad/FLAG9057beb37 [2020-10-11 18:46:56,583 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80bb8a341/3bd66bd56c364a54a89db5639bd97fad [2020-10-11 18:46:56,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 18:46:56,595 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 18:46:56,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 18:46:56,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 18:46:56,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 18:46:56,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:46:56" (1/1) ... [2020-10-11 18:46:56,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3470fc1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:56, skipping insertion in model container [2020-10-11 18:46:56,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:46:56" (1/1) ... [2020-10-11 18:46:56,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 18:46:56,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 18:46:57,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:46:57,322 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 18:46:57,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:46:57,495 INFO L208 MainTranslator]: Completed translation [2020-10-11 18:46:57,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:57 WrapperNode [2020-10-11 18:46:57,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 18:46:57,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 18:46:57,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 18:46:57,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 18:46:57,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:57" (1/1) ... [2020-10-11 18:46:57,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:57" (1/1) ... [2020-10-11 18:46:57,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 18:46:57,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 18:46:57,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 18:46:57,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 18:46:57,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:57" (1/1) ... [2020-10-11 18:46:57,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:57" (1/1) ... [2020-10-11 18:46:57,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:57" (1/1) ... [2020-10-11 18:46:57,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:57" (1/1) ... [2020-10-11 18:46:57,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:57" (1/1) ... [2020-10-11 18:46:57,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:57" (1/1) ... [2020-10-11 18:46:57,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:57" (1/1) ... [2020-10-11 18:46:57,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 18:46:57,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 18:46:57,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 18:46:57,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 18:46:57,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:57" (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 [2020-10-11 18:46:57,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 18:46:57,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 18:46:57,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 18:46:57,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 18:46:57,763 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 18:46:57,764 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 18:46:57,764 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 18:46:57,765 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 18:46:57,765 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 18:46:57,766 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 18:46:57,766 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 18:46:57,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 18:46:57,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 18:46:57,771 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 18:47:01,994 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 18:47:01,994 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-11 18:47:01,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:47:01 BoogieIcfgContainer [2020-10-11 18:47:01,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 18:47:01,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 18:47:01,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 18:47:02,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 18:47:02,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:46:56" (1/3) ... [2020-10-11 18:47:02,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e80389a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:47:02, skipping insertion in model container [2020-10-11 18:47:02,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:57" (2/3) ... [2020-10-11 18:47:02,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e80389a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:47:02, skipping insertion in model container [2020-10-11 18:47:02,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:47:01" (3/3) ... [2020-10-11 18:47:02,006 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_power.opt.i [2020-10-11 18:47:02,018 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 18:47:02,027 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-11 18:47:02,028 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 18:47:02,071 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,071 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,071 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,071 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,072 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,073 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,073 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,073 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,074 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,075 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,076 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,076 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,076 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,076 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,077 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,077 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,078 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,078 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,078 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,078 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,079 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,079 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,079 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,079 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,079 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,080 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,081 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,082 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,082 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,082 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,082 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,082 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,082 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,083 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,083 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,083 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,083 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,083 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,083 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,084 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,084 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,084 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,084 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,084 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,084 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,085 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,085 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,086 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,086 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,088 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,088 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,088 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,089 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,089 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,089 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,089 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,091 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,091 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,091 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,092 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,092 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,092 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,093 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,093 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,094 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,094 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,094 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,094 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,095 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,095 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,095 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,096 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,096 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite68| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,096 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,096 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite65| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,096 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite66| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,096 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,097 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite69| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,097 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite71| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,097 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,098 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,101 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite75| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,101 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite63| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,101 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite74| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,102 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite72| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,107 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite62| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,107 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,108 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,108 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite77| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,108 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite76| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,108 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,108 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite71| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite70| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite75| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite74| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite73| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,110 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite72| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,110 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite68| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,110 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite67| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,110 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite65| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,110 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite66| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,110 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite69| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite63| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite64| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,112 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite62| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite78| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite79| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite78| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite82| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite81| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite80| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,115 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite83| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,115 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,115 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,119 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,120 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,121 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,122 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,122 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,122 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,122 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,122 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,125 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,125 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,125 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,125 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,125 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,126 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,126 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,126 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,126 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,126 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,127 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,127 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,127 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,127 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,127 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,128 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,128 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,128 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,128 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,128 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,129 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,129 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,129 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,129 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,130 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,130 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,130 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,130 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,130 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,131 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,131 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,131 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,131 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,131 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,134 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,135 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,135 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite62| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,135 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite83| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,135 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite82| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,135 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,136 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite81| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,136 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite80| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,136 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite69| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,136 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite67| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,137 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite68| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,137 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,137 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite65| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,137 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite66| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,137 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,138 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite63| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,138 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite64| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,138 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,138 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,138 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,139 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,139 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite73| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,139 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite72| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,139 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,139 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,140 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite70| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,140 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite71| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,140 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,140 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~nondet56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,141 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,141 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,141 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite79| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,141 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,141 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite78| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,142 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,142 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite77| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,142 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite76| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,142 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,142 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite75| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,143 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,143 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite74| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:47:02,161 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-11 18:47:02,182 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 18:47:02,182 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 18:47:02,182 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 18:47:02,182 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 18:47:02,182 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 18:47:02,183 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 18:47:02,183 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 18:47:02,183 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 18:47:02,196 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 105 places, 97 transitions, 209 flow [2020-10-11 18:47:02,313 INFO L129 PetriNetUnfolder]: 2/94 cut-off events. [2020-10-11 18:47:02,314 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:47:02,319 INFO L80 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2020-10-11 18:47:02,320 INFO L82 GeneralOperation]: Start removeDead. Operand has 105 places, 97 transitions, 209 flow [2020-10-11 18:47:02,329 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 94 transitions, 197 flow [2020-10-11 18:47:02,359 INFO L129 PetriNetUnfolder]: 0/61 cut-off events. [2020-10-11 18:47:02,360 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:47:02,360 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:02,361 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] [2020-10-11 18:47:02,361 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:02,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:02,367 INFO L82 PathProgramCache]: Analyzing trace with hash -177295730, now seen corresponding path program 1 times [2020-10-11 18:47:02,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:02,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654284882] [2020-10-11 18:47:02,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:02,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:02,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654284882] [2020-10-11 18:47:02,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:02,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 18:47:02,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621234160] [2020-10-11 18:47:02,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 18:47:02,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:02,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 18:47:02,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 18:47:02,896 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 97 [2020-10-11 18:47:02,898 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 197 flow. Second operand 3 states. [2020-10-11 18:47:02,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:02,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 97 [2020-10-11 18:47:02,900 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:02,932 INFO L129 PetriNetUnfolder]: 0/91 cut-off events. [2020-10-11 18:47:02,932 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:47:02,932 INFO L80 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 91 events. 0/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 4/93 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2020-10-11 18:47:02,934 INFO L132 encePairwiseOnDemand]: 92/97 looper letters, 0 selfloop transitions, 2 changer transitions 11/91 dead transitions. [2020-10-11 18:47:02,934 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 91 transitions, 195 flow [2020-10-11 18:47:02,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 18:47:02,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 18:47:02,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2020-10-11 18:47:02,949 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9725085910652921 [2020-10-11 18:47:02,950 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 283 transitions. [2020-10-11 18:47:02,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 283 transitions. [2020-10-11 18:47:02,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:47:02,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 283 transitions. [2020-10-11 18:47:02,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 18:47:02,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 18:47:02,965 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 18:47:02,968 INFO L185 Difference]: Start difference. First operand has 102 places, 94 transitions, 197 flow. Second operand 3 states and 283 transitions. [2020-10-11 18:47:02,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 91 transitions, 195 flow [2020-10-11 18:47:02,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 91 transitions, 192 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-11 18:47:02,977 INFO L241 Difference]: Finished difference. Result has 100 places, 80 transitions, 170 flow [2020-10-11 18:47:02,980 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=100, PETRI_TRANSITIONS=80} [2020-10-11 18:47:02,981 INFO L341 CegarLoopForPetriNet]: 102 programPoint places, -2 predicate places. [2020-10-11 18:47:02,981 INFO L481 AbstractCegarLoop]: Abstraction has has 100 places, 80 transitions, 170 flow [2020-10-11 18:47:02,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 18:47:02,981 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:02,982 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, 1, 1, 1] [2020-10-11 18:47:02,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 18:47:02,982 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:02,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:02,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1592294471, now seen corresponding path program 1 times [2020-10-11 18:47:02,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:02,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145284397] [2020-10-11 18:47:02,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:03,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:03,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145284397] [2020-10-11 18:47:03,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:03,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:47:03,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476806092] [2020-10-11 18:47:03,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:47:03,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:03,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:47:03,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:47:03,510 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 97 [2020-10-11 18:47:03,511 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 80 transitions, 170 flow. Second operand 6 states. [2020-10-11 18:47:03,511 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:03,511 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 97 [2020-10-11 18:47:03,512 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:03,649 INFO L129 PetriNetUnfolder]: 3/95 cut-off events. [2020-10-11 18:47:03,650 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:47:03,651 INFO L80 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 95 events. 3/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 127 event pairs, 0 based on Foata normal form. 2/97 useless extension candidates. Maximal degree in co-relation 82. Up to 7 conditions per place. [2020-10-11 18:47:03,651 INFO L132 encePairwiseOnDemand]: 91/97 looper letters, 6 selfloop transitions, 2 changer transitions 10/90 dead transitions. [2020-10-11 18:47:03,651 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 90 transitions, 226 flow [2020-10-11 18:47:03,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:47:03,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:47:03,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 803 transitions. [2020-10-11 18:47:03,658 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9198167239404352 [2020-10-11 18:47:03,658 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 803 transitions. [2020-10-11 18:47:03,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 803 transitions. [2020-10-11 18:47:03,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:47:03,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 803 transitions. [2020-10-11 18:47:03,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:47:03,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:47:03,665 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:47:03,665 INFO L185 Difference]: Start difference. First operand has 100 places, 80 transitions, 170 flow. Second operand 9 states and 803 transitions. [2020-10-11 18:47:03,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 90 transitions, 226 flow [2020-10-11 18:47:03,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 90 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-11 18:47:03,670 INFO L241 Difference]: Finished difference. Result has 102 places, 80 transitions, 186 flow [2020-10-11 18:47:03,670 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=186, PETRI_PLACES=102, PETRI_TRANSITIONS=80} [2020-10-11 18:47:03,671 INFO L341 CegarLoopForPetriNet]: 102 programPoint places, 0 predicate places. [2020-10-11 18:47:03,671 INFO L481 AbstractCegarLoop]: Abstraction has has 102 places, 80 transitions, 186 flow [2020-10-11 18:47:03,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:47:03,671 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:03,671 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:47:03,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 18:47:03,672 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:03,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:03,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1840491740, now seen corresponding path program 1 times [2020-10-11 18:47:03,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:03,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882579627] [2020-10-11 18:47:03,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:04,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:04,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882579627] [2020-10-11 18:47:04,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:04,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-11 18:47:04,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877744985] [2020-10-11 18:47:04,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-11 18:47:04,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:04,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-11 18:47:04,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-11 18:47:04,823 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 97 [2020-10-11 18:47:04,824 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 80 transitions, 186 flow. Second operand 8 states. [2020-10-11 18:47:04,825 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:04,825 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 97 [2020-10-11 18:47:04,825 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:06,065 INFO L129 PetriNetUnfolder]: 1162/2165 cut-off events. [2020-10-11 18:47:06,065 INFO L130 PetriNetUnfolder]: For 380/380 co-relation queries the response was YES. [2020-10-11 18:47:06,079 INFO L80 FinitePrefix]: Finished finitePrefix Result has 4503 conditions, 2165 events. 1162/2165 cut-off events. For 380/380 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 13219 event pairs, 436 based on Foata normal form. 47/2170 useless extension candidates. Maximal degree in co-relation 4449. Up to 1085 conditions per place. [2020-10-11 18:47:06,095 INFO L132 encePairwiseOnDemand]: 81/97 looper letters, 22 selfloop transitions, 17 changer transitions 49/146 dead transitions. [2020-10-11 18:47:06,095 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 146 transitions, 515 flow [2020-10-11 18:47:06,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-11 18:47:06,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-11 18:47:06,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 882 transitions. [2020-10-11 18:47:06,100 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8266166822867854 [2020-10-11 18:47:06,100 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 882 transitions. [2020-10-11 18:47:06,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 882 transitions. [2020-10-11 18:47:06,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:47:06,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 882 transitions. [2020-10-11 18:47:06,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 12 states. [2020-10-11 18:47:06,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 12 states. [2020-10-11 18:47:06,109 INFO L81 ComplementDD]: Finished complementDD. Result 12 states. [2020-10-11 18:47:06,110 INFO L185 Difference]: Start difference. First operand has 102 places, 80 transitions, 186 flow. Second operand 11 states and 882 transitions. [2020-10-11 18:47:06,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 146 transitions, 515 flow [2020-10-11 18:47:06,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 146 transitions, 481 flow, removed 14 selfloop flow, removed 8 redundant places. [2020-10-11 18:47:06,144 INFO L241 Difference]: Finished difference. Result has 106 places, 94 transitions, 292 flow [2020-10-11 18:47:06,145 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=292, PETRI_PLACES=106, PETRI_TRANSITIONS=94} [2020-10-11 18:47:06,145 INFO L341 CegarLoopForPetriNet]: 102 programPoint places, 4 predicate places. [2020-10-11 18:47:06,145 INFO L481 AbstractCegarLoop]: Abstraction has has 106 places, 94 transitions, 292 flow [2020-10-11 18:47:06,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-11 18:47:06,146 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:06,146 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:47:06,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 18:47:06,147 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:06,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:06,147 INFO L82 PathProgramCache]: Analyzing trace with hash 600403126, now seen corresponding path program 2 times [2020-10-11 18:47:06,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:06,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639364894] [2020-10-11 18:47:06,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:06,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:06,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639364894] [2020-10-11 18:47:06,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:06,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-11 18:47:06,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951459485] [2020-10-11 18:47:06,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-11 18:47:06,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:06,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-11 18:47:06,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-11 18:47:08,467 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 97 [2020-10-11 18:47:08,469 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 94 transitions, 292 flow. Second operand 11 states. [2020-10-11 18:47:08,469 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:08,469 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 97 [2020-10-11 18:47:08,469 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:09,787 INFO L129 PetriNetUnfolder]: 1319/2503 cut-off events. [2020-10-11 18:47:09,787 INFO L130 PetriNetUnfolder]: For 4150/5108 co-relation queries the response was YES. [2020-10-11 18:47:09,803 INFO L80 FinitePrefix]: Finished finitePrefix Result has 8203 conditions, 2503 events. 1319/2503 cut-off events. For 4150/5108 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 15896 event pairs, 111 based on Foata normal form. 69/2532 useless extension candidates. Maximal degree in co-relation 8145. Up to 985 conditions per place. [2020-10-11 18:47:09,825 INFO L132 encePairwiseOnDemand]: 83/97 looper letters, 35 selfloop transitions, 25 changer transitions 49/166 dead transitions. [2020-10-11 18:47:09,825 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 166 transitions, 899 flow [2020-10-11 18:47:09,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-11 18:47:09,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-11 18:47:09,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 950 transitions. [2020-10-11 18:47:09,832 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8161512027491409 [2020-10-11 18:47:09,832 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 950 transitions. [2020-10-11 18:47:09,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 950 transitions. [2020-10-11 18:47:09,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:47:09,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 950 transitions. [2020-10-11 18:47:09,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-10-11 18:47:09,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-10-11 18:47:09,841 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-10-11 18:47:09,841 INFO L185 Difference]: Start difference. First operand has 106 places, 94 transitions, 292 flow. Second operand 12 states and 950 transitions. [2020-10-11 18:47:09,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 166 transitions, 899 flow [2020-10-11 18:47:09,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 166 transitions, 883 flow, removed 7 selfloop flow, removed 4 redundant places. [2020-10-11 18:47:09,862 INFO L241 Difference]: Finished difference. Result has 115 places, 105 transitions, 475 flow [2020-10-11 18:47:09,862 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=475, PETRI_PLACES=115, PETRI_TRANSITIONS=105} [2020-10-11 18:47:09,863 INFO L341 CegarLoopForPetriNet]: 102 programPoint places, 13 predicate places. [2020-10-11 18:47:09,863 INFO L481 AbstractCegarLoop]: Abstraction has has 115 places, 105 transitions, 475 flow [2020-10-11 18:47:09,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-11 18:47:09,864 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:09,864 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:47:09,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 18:47:09,865 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:09,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:09,866 INFO L82 PathProgramCache]: Analyzing trace with hash -430616939, now seen corresponding path program 1 times [2020-10-11 18:47:09,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:09,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698691500] [2020-10-11 18:47:09,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:10,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:10,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698691500] [2020-10-11 18:47:10,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:10,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:47:10,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085245146] [2020-10-11 18:47:10,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:47:10,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:10,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:47:10,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:47:10,290 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 97 [2020-10-11 18:47:10,291 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 105 transitions, 475 flow. Second operand 6 states. [2020-10-11 18:47:10,291 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:10,291 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 97 [2020-10-11 18:47:10,291 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:10,878 INFO L129 PetriNetUnfolder]: 888/2453 cut-off events. [2020-10-11 18:47:10,879 INFO L130 PetriNetUnfolder]: For 4389/4585 co-relation queries the response was YES. [2020-10-11 18:47:10,900 INFO L80 FinitePrefix]: Finished finitePrefix Result has 6581 conditions, 2453 events. 888/2453 cut-off events. For 4389/4585 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 22420 event pairs, 225 based on Foata normal form. 58/2309 useless extension candidates. Maximal degree in co-relation 6521. Up to 512 conditions per place. [2020-10-11 18:47:10,917 INFO L132 encePairwiseOnDemand]: 88/97 looper letters, 19 selfloop transitions, 16 changer transitions 0/130 dead transitions. [2020-10-11 18:47:10,918 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 130 transitions, 595 flow [2020-10-11 18:47:10,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:47:10,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:47:10,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 793 transitions. [2020-10-11 18:47:10,921 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9083619702176403 [2020-10-11 18:47:10,921 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 793 transitions. [2020-10-11 18:47:10,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 793 transitions. [2020-10-11 18:47:10,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:47:10,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 793 transitions. [2020-10-11 18:47:10,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:47:10,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:47:10,926 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:47:10,926 INFO L185 Difference]: Start difference. First operand has 115 places, 105 transitions, 475 flow. Second operand 9 states and 793 transitions. [2020-10-11 18:47:10,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 130 transitions, 595 flow [2020-10-11 18:47:10,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 130 transitions, 560 flow, removed 5 selfloop flow, removed 6 redundant places. [2020-10-11 18:47:10,937 INFO L241 Difference]: Finished difference. Result has 116 places, 119 transitions, 551 flow [2020-10-11 18:47:10,937 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=551, PETRI_PLACES=116, PETRI_TRANSITIONS=119} [2020-10-11 18:47:10,938 INFO L341 CegarLoopForPetriNet]: 102 programPoint places, 14 predicate places. [2020-10-11 18:47:10,938 INFO L481 AbstractCegarLoop]: Abstraction has has 116 places, 119 transitions, 551 flow [2020-10-11 18:47:10,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:47:10,939 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:10,940 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:47:10,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 18:47:10,940 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:10,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:10,940 INFO L82 PathProgramCache]: Analyzing trace with hash 727276308, now seen corresponding path program 1 times [2020-10-11 18:47:10,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:10,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094784743] [2020-10-11 18:47:10,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:11,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:11,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:11,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094784743] [2020-10-11 18:47:11,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:11,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:47:11,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453426558] [2020-10-11 18:47:11,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:47:11,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:11,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:47:11,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:47:11,291 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 97 [2020-10-11 18:47:11,292 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 119 transitions, 551 flow. Second operand 7 states. [2020-10-11 18:47:11,292 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:11,292 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 97 [2020-10-11 18:47:11,292 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:11,856 INFO L129 PetriNetUnfolder]: 589/2012 cut-off events. [2020-10-11 18:47:11,856 INFO L130 PetriNetUnfolder]: For 4278/6581 co-relation queries the response was YES. [2020-10-11 18:47:11,874 INFO L80 FinitePrefix]: Finished finitePrefix Result has 6236 conditions, 2012 events. 589/2012 cut-off events. For 4278/6581 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 19436 event pairs, 59 based on Foata normal form. 481/2320 useless extension candidates. Maximal degree in co-relation 6174. Up to 471 conditions per place. [2020-10-11 18:47:11,888 INFO L132 encePairwiseOnDemand]: 88/97 looper letters, 15 selfloop transitions, 31 changer transitions 9/142 dead transitions. [2020-10-11 18:47:11,888 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 142 transitions, 806 flow [2020-10-11 18:47:11,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-11 18:47:11,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-11 18:47:11,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1058 transitions. [2020-10-11 18:47:11,892 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9089347079037801 [2020-10-11 18:47:11,892 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1058 transitions. [2020-10-11 18:47:11,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1058 transitions. [2020-10-11 18:47:11,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:47:11,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1058 transitions. [2020-10-11 18:47:11,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-10-11 18:47:11,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-10-11 18:47:11,898 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-10-11 18:47:11,898 INFO L185 Difference]: Start difference. First operand has 116 places, 119 transitions, 551 flow. Second operand 12 states and 1058 transitions. [2020-10-11 18:47:11,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 142 transitions, 806 flow [2020-10-11 18:47:11,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 142 transitions, 804 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 18:47:11,913 INFO L241 Difference]: Finished difference. Result has 129 places, 130 transitions, 731 flow [2020-10-11 18:47:11,913 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=731, PETRI_PLACES=129, PETRI_TRANSITIONS=130} [2020-10-11 18:47:11,913 INFO L341 CegarLoopForPetriNet]: 102 programPoint places, 27 predicate places. [2020-10-11 18:47:11,914 INFO L481 AbstractCegarLoop]: Abstraction has has 129 places, 130 transitions, 731 flow [2020-10-11 18:47:11,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:47:11,914 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:11,914 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:47:11,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 18:47:11,914 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:11,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:11,915 INFO L82 PathProgramCache]: Analyzing trace with hash 748512144, now seen corresponding path program 1 times [2020-10-11 18:47:11,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:11,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757267867] [2020-10-11 18:47:11,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:12,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:12,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757267867] [2020-10-11 18:47:12,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:12,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-11 18:47:12,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335658802] [2020-10-11 18:47:12,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-11 18:47:12,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:12,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-11 18:47:12,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-10-11 18:47:16,601 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 97 [2020-10-11 18:47:16,602 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 130 transitions, 731 flow. Second operand 14 states. [2020-10-11 18:47:16,603 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:16,603 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 97 [2020-10-11 18:47:16,603 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:18,027 INFO L129 PetriNetUnfolder]: 808/2947 cut-off events. [2020-10-11 18:47:18,028 INFO L130 PetriNetUnfolder]: For 9586/10381 co-relation queries the response was YES. [2020-10-11 18:47:18,055 INFO L80 FinitePrefix]: Finished finitePrefix Result has 10045 conditions, 2947 events. 808/2947 cut-off events. For 9586/10381 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 30888 event pairs, 29 based on Foata normal form. 15/2812 useless extension candidates. Maximal degree in co-relation 9972. Up to 592 conditions per place. [2020-10-11 18:47:18,077 INFO L132 encePairwiseOnDemand]: 81/97 looper letters, 38 selfloop transitions, 22 changer transitions 35/184 dead transitions. [2020-10-11 18:47:18,077 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 184 transitions, 1511 flow [2020-10-11 18:47:18,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-11 18:47:18,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-11 18:47:18,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1072 transitions. [2020-10-11 18:47:18,082 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7893961708394698 [2020-10-11 18:47:18,082 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1072 transitions. [2020-10-11 18:47:18,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1072 transitions. [2020-10-11 18:47:18,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:47:18,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1072 transitions. [2020-10-11 18:47:18,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 15 states. [2020-10-11 18:47:18,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 15 states. [2020-10-11 18:47:18,096 INFO L81 ComplementDD]: Finished complementDD. Result 15 states. [2020-10-11 18:47:18,096 INFO L185 Difference]: Start difference. First operand has 129 places, 130 transitions, 731 flow. Second operand 14 states and 1072 transitions. [2020-10-11 18:47:18,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 184 transitions, 1511 flow [2020-10-11 18:47:18,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 184 transitions, 1377 flow, removed 47 selfloop flow, removed 8 redundant places. [2020-10-11 18:47:18,176 INFO L241 Difference]: Finished difference. Result has 141 places, 132 transitions, 696 flow [2020-10-11 18:47:18,176 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=696, PETRI_PLACES=141, PETRI_TRANSITIONS=132} [2020-10-11 18:47:18,177 INFO L341 CegarLoopForPetriNet]: 102 programPoint places, 39 predicate places. [2020-10-11 18:47:18,177 INFO L481 AbstractCegarLoop]: Abstraction has has 141 places, 132 transitions, 696 flow [2020-10-11 18:47:18,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-11 18:47:18,177 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:18,177 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:47:18,177 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 18:47:18,177 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:18,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:18,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1883391150, now seen corresponding path program 2 times [2020-10-11 18:47:18,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:18,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055767435] [2020-10-11 18:47:18,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:19,164 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 33 [2020-10-11 18:47:19,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:19,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055767435] [2020-10-11 18:47:19,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:19,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-10-11 18:47:19,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38916343] [2020-10-11 18:47:19,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-11 18:47:19,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:19,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-11 18:47:19,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-10-11 18:47:25,081 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 97 [2020-10-11 18:47:25,082 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 132 transitions, 696 flow. Second operand 17 states. [2020-10-11 18:47:25,083 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:25,083 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 97 [2020-10-11 18:47:25,083 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:27,139 INFO L129 PetriNetUnfolder]: 1160/4173 cut-off events. [2020-10-11 18:47:27,139 INFO L130 PetriNetUnfolder]: For 10553/10824 co-relation queries the response was YES. [2020-10-11 18:47:27,168 INFO L80 FinitePrefix]: Finished finitePrefix Result has 12446 conditions, 4173 events. 1160/4173 cut-off events. For 10553/10824 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 47136 event pairs, 51 based on Foata normal form. 15/3962 useless extension candidates. Maximal degree in co-relation 12367. Up to 457 conditions per place. [2020-10-11 18:47:27,189 INFO L132 encePairwiseOnDemand]: 81/97 looper letters, 64 selfloop transitions, 23 changer transitions 37/213 dead transitions. [2020-10-11 18:47:27,189 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 213 transitions, 1886 flow [2020-10-11 18:47:27,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-11 18:47:27,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-11 18:47:27,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1293 transitions. [2020-10-11 18:47:27,203 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7841115827774409 [2020-10-11 18:47:27,203 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1293 transitions. [2020-10-11 18:47:27,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1293 transitions. [2020-10-11 18:47:27,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:47:27,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1293 transitions. [2020-10-11 18:47:27,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 18 states. [2020-10-11 18:47:27,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 18 states. [2020-10-11 18:47:27,211 INFO L81 ComplementDD]: Finished complementDD. Result 18 states. [2020-10-11 18:47:27,211 INFO L185 Difference]: Start difference. First operand has 141 places, 132 transitions, 696 flow. Second operand 17 states and 1293 transitions. [2020-10-11 18:47:27,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 213 transitions, 1886 flow [2020-10-11 18:47:27,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 213 transitions, 1763 flow, removed 41 selfloop flow, removed 12 redundant places. [2020-10-11 18:47:27,280 INFO L241 Difference]: Finished difference. Result has 147 places, 141 transitions, 831 flow [2020-10-11 18:47:27,280 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=831, PETRI_PLACES=147, PETRI_TRANSITIONS=141} [2020-10-11 18:47:27,281 INFO L341 CegarLoopForPetriNet]: 102 programPoint places, 45 predicate places. [2020-10-11 18:47:27,281 INFO L481 AbstractCegarLoop]: Abstraction has has 147 places, 141 transitions, 831 flow [2020-10-11 18:47:27,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-11 18:47:27,281 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:27,281 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:47:27,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 18:47:27,281 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:27,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:27,282 INFO L82 PathProgramCache]: Analyzing trace with hash 745254010, now seen corresponding path program 3 times [2020-10-11 18:47:27,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:27,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386130259] [2020-10-11 18:47:27,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:27,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:27,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386130259] [2020-10-11 18:47:27,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:27,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-11 18:47:27,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402566542] [2020-10-11 18:47:27,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-11 18:47:27,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:27,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-11 18:47:27,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-11 18:47:27,697 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 97 [2020-10-11 18:47:27,698 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 141 transitions, 831 flow. Second operand 8 states. [2020-10-11 18:47:27,698 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:27,698 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 97 [2020-10-11 18:47:27,698 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:28,561 INFO L129 PetriNetUnfolder]: 1256/4133 cut-off events. [2020-10-11 18:47:28,561 INFO L130 PetriNetUnfolder]: For 6435/10406 co-relation queries the response was YES. [2020-10-11 18:47:28,586 INFO L80 FinitePrefix]: Finished finitePrefix Result has 12419 conditions, 4133 events. 1256/4133 cut-off events. For 6435/10406 co-relation queries the response was YES. Maximal size of possible extension queue 633. Compared 47195 event pairs, 82 based on Foata normal form. 1045/4851 useless extension candidates. Maximal degree in co-relation 12376. Up to 630 conditions per place. [2020-10-11 18:47:28,604 INFO L132 encePairwiseOnDemand]: 88/97 looper letters, 10 selfloop transitions, 36 changer transitions 16/160 dead transitions. [2020-10-11 18:47:28,604 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 160 transitions, 1053 flow [2020-10-11 18:47:28,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-11 18:47:28,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-11 18:47:28,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1311 transitions. [2020-10-11 18:47:28,609 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9010309278350516 [2020-10-11 18:47:28,609 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1311 transitions. [2020-10-11 18:47:28,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1311 transitions. [2020-10-11 18:47:28,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:47:28,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1311 transitions. [2020-10-11 18:47:28,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 16 states. [2020-10-11 18:47:28,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 16 states. [2020-10-11 18:47:28,617 INFO L81 ComplementDD]: Finished complementDD. Result 16 states. [2020-10-11 18:47:28,617 INFO L185 Difference]: Start difference. First operand has 147 places, 141 transitions, 831 flow. Second operand 15 states and 1311 transitions. [2020-10-11 18:47:28,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 160 transitions, 1053 flow [2020-10-11 18:47:28,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 160 transitions, 997 flow, removed 21 selfloop flow, removed 12 redundant places. [2020-10-11 18:47:28,684 INFO L241 Difference]: Finished difference. Result has 149 places, 141 transitions, 887 flow [2020-10-11 18:47:28,685 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=775, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=887, PETRI_PLACES=149, PETRI_TRANSITIONS=141} [2020-10-11 18:47:28,685 INFO L341 CegarLoopForPetriNet]: 102 programPoint places, 47 predicate places. [2020-10-11 18:47:28,685 INFO L481 AbstractCegarLoop]: Abstraction has has 149 places, 141 transitions, 887 flow [2020-10-11 18:47:28,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-11 18:47:28,685 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:28,685 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:47:28,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-11 18:47:28,686 INFO L429 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:28,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:28,686 INFO L82 PathProgramCache]: Analyzing trace with hash -626236193, now seen corresponding path program 1 times [2020-10-11 18:47:28,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:28,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662257383] [2020-10-11 18:47:28,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:28,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:28,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662257383] [2020-10-11 18:47:28,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:28,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:47:28,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610268989] [2020-10-11 18:47:28,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:47:28,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:28,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:47:28,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:47:29,284 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 97 [2020-10-11 18:47:29,285 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 141 transitions, 887 flow. Second operand 7 states. [2020-10-11 18:47:29,285 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:29,285 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 97 [2020-10-11 18:47:29,285 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:30,158 INFO L129 PetriNetUnfolder]: 1547/5745 cut-off events. [2020-10-11 18:47:30,158 INFO L130 PetriNetUnfolder]: For 14000/14670 co-relation queries the response was YES. [2020-10-11 18:47:30,184 INFO L80 FinitePrefix]: Finished finitePrefix Result has 17716 conditions, 5745 events. 1547/5745 cut-off events. For 14000/14670 co-relation queries the response was YES. Maximal size of possible extension queue 897. Compared 72894 event pairs, 112 based on Foata normal form. 2/5380 useless extension candidates. Maximal degree in co-relation 17641. Up to 701 conditions per place. [2020-10-11 18:47:30,207 INFO L132 encePairwiseOnDemand]: 91/97 looper letters, 9 selfloop transitions, 2 changer transitions 4/146 dead transitions. [2020-10-11 18:47:30,207 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 146 transitions, 933 flow [2020-10-11 18:47:30,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 18:47:30,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-11 18:47:30,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 611 transitions. [2020-10-11 18:47:30,211 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8998527245949927 [2020-10-11 18:47:30,211 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 611 transitions. [2020-10-11 18:47:30,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 611 transitions. [2020-10-11 18:47:30,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:47:30,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 611 transitions. [2020-10-11 18:47:30,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-11 18:47:30,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-11 18:47:30,217 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-11 18:47:30,217 INFO L185 Difference]: Start difference. First operand has 149 places, 141 transitions, 887 flow. Second operand 7 states and 611 transitions. [2020-10-11 18:47:30,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 146 transitions, 933 flow [2020-10-11 18:47:30,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 146 transitions, 792 flow, removed 46 selfloop flow, removed 17 redundant places. [2020-10-11 18:47:30,562 INFO L241 Difference]: Finished difference. Result has 141 places, 142 transitions, 765 flow [2020-10-11 18:47:30,563 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=765, PETRI_PLACES=141, PETRI_TRANSITIONS=142} [2020-10-11 18:47:30,563 INFO L341 CegarLoopForPetriNet]: 102 programPoint places, 39 predicate places. [2020-10-11 18:47:30,563 INFO L481 AbstractCegarLoop]: Abstraction has has 141 places, 142 transitions, 765 flow [2020-10-11 18:47:30,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:47:30,563 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:30,564 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:47:30,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-11 18:47:30,564 INFO L429 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:30,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:30,564 INFO L82 PathProgramCache]: Analyzing trace with hash -154529731, now seen corresponding path program 2 times [2020-10-11 18:47:30,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:30,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020227514] [2020-10-11 18:47:30,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:31,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:31,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020227514] [2020-10-11 18:47:31,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:31,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-11 18:47:31,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958679994] [2020-10-11 18:47:31,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-11 18:47:31,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:31,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-11 18:47:31,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2020-10-11 18:47:36,103 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 97 [2020-10-11 18:47:36,104 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 142 transitions, 765 flow. Second operand 15 states. [2020-10-11 18:47:36,104 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:36,105 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 97 [2020-10-11 18:47:36,105 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:37,165 INFO L129 PetriNetUnfolder]: 2215/8664 cut-off events. [2020-10-11 18:47:37,165 INFO L130 PetriNetUnfolder]: For 11198/11716 co-relation queries the response was YES. [2020-10-11 18:47:37,229 INFO L80 FinitePrefix]: Finished finitePrefix Result has 24309 conditions, 8664 events. 2215/8664 cut-off events. For 11198/11716 co-relation queries the response was YES. Maximal size of possible extension queue 1444. Compared 120012 event pairs, 28 based on Foata normal form. 1/8101 useless extension candidates. Maximal degree in co-relation 24275. Up to 1043 conditions per place. [2020-10-11 18:47:37,249 INFO L132 encePairwiseOnDemand]: 85/97 looper letters, 56 selfloop transitions, 10 changer transitions 19/179 dead transitions. [2020-10-11 18:47:37,249 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 179 transitions, 1214 flow [2020-10-11 18:47:37,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-11 18:47:37,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-11 18:47:37,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 971 transitions. [2020-10-11 18:47:37,252 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7700237906423474 [2020-10-11 18:47:37,252 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 971 transitions. [2020-10-11 18:47:37,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 971 transitions. [2020-10-11 18:47:37,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:47:37,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 971 transitions. [2020-10-11 18:47:37,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-10-11 18:47:37,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 14 states. [2020-10-11 18:47:37,257 INFO L81 ComplementDD]: Finished complementDD. Result 14 states. [2020-10-11 18:47:37,257 INFO L185 Difference]: Start difference. First operand has 141 places, 142 transitions, 765 flow. Second operand 13 states and 971 transitions. [2020-10-11 18:47:37,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 179 transitions, 1214 flow [2020-10-11 18:47:37,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 179 transitions, 1203 flow, removed 5 selfloop flow, removed 4 redundant places. [2020-10-11 18:47:37,976 INFO L241 Difference]: Finished difference. Result has 152 places, 143 transitions, 795 flow [2020-10-11 18:47:37,977 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=795, PETRI_PLACES=152, PETRI_TRANSITIONS=143} [2020-10-11 18:47:37,977 INFO L341 CegarLoopForPetriNet]: 102 programPoint places, 50 predicate places. [2020-10-11 18:47:37,977 INFO L481 AbstractCegarLoop]: Abstraction has has 152 places, 143 transitions, 795 flow [2020-10-11 18:47:37,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-11 18:47:37,977 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:37,977 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:47:37,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-11 18:47:37,978 INFO L429 AbstractCegarLoop]: === Iteration 12 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:37,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:37,978 INFO L82 PathProgramCache]: Analyzing trace with hash -164833937, now seen corresponding path program 3 times [2020-10-11 18:47:37,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:37,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067334053] [2020-10-11 18:47:37,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:38,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:38,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067334053] [2020-10-11 18:47:38,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:38,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-11 18:47:38,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892729164] [2020-10-11 18:47:38,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-11 18:47:38,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:38,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-11 18:47:38,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-10-11 18:47:44,576 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 97 [2020-10-11 18:47:44,577 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 143 transitions, 795 flow. Second operand 16 states. [2020-10-11 18:47:44,577 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:44,577 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 97 [2020-10-11 18:47:44,577 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:46,076 INFO L129 PetriNetUnfolder]: 2580/9961 cut-off events. [2020-10-11 18:47:46,076 INFO L130 PetriNetUnfolder]: For 13518/14144 co-relation queries the response was YES. [2020-10-11 18:47:46,158 INFO L80 FinitePrefix]: Finished finitePrefix Result has 28312 conditions, 9961 events. 2580/9961 cut-off events. For 13518/14144 co-relation queries the response was YES. Maximal size of possible extension queue 1663. Compared 140572 event pairs, 54 based on Foata normal form. 5/9338 useless extension candidates. Maximal degree in co-relation 28275. Up to 1205 conditions per place. [2020-10-11 18:47:46,173 INFO L132 encePairwiseOnDemand]: 84/97 looper letters, 45 selfloop transitions, 13 changer transitions 47/195 dead transitions. [2020-10-11 18:47:46,173 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 195 transitions, 1410 flow [2020-10-11 18:47:46,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-11 18:47:46,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-11 18:47:46,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1109 transitions. [2020-10-11 18:47:46,176 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7621993127147766 [2020-10-11 18:47:46,176 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1109 transitions. [2020-10-11 18:47:46,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1109 transitions. [2020-10-11 18:47:46,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:47:46,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1109 transitions. [2020-10-11 18:47:46,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 16 states. [2020-10-11 18:47:46,181 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 16 states. [2020-10-11 18:47:46,181 INFO L81 ComplementDD]: Finished complementDD. Result 16 states. [2020-10-11 18:47:46,181 INFO L185 Difference]: Start difference. First operand has 152 places, 143 transitions, 795 flow. Second operand 15 states and 1109 transitions. [2020-10-11 18:47:46,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 195 transitions, 1410 flow [2020-10-11 18:47:47,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 195 transitions, 1383 flow, removed 8 selfloop flow, removed 8 redundant places. [2020-10-11 18:47:47,059 INFO L241 Difference]: Finished difference. Result has 161 places, 142 transitions, 814 flow [2020-10-11 18:47:47,060 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=814, PETRI_PLACES=161, PETRI_TRANSITIONS=142} [2020-10-11 18:47:47,060 INFO L341 CegarLoopForPetriNet]: 102 programPoint places, 59 predicate places. [2020-10-11 18:47:47,060 INFO L481 AbstractCegarLoop]: Abstraction has has 161 places, 142 transitions, 814 flow [2020-10-11 18:47:47,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-11 18:47:47,060 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:47,060 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:47:47,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-11 18:47:47,061 INFO L429 AbstractCegarLoop]: === Iteration 13 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:47,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:47,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1146614139, now seen corresponding path program 4 times [2020-10-11 18:47:47,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:47,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122976574] [2020-10-11 18:47:47,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:47,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:47,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122976574] [2020-10-11 18:47:47,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:47,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-11 18:47:47,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966294002] [2020-10-11 18:47:47,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-11 18:47:47,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:47,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-11 18:47:47,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-11 18:47:49,140 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 97 [2020-10-11 18:47:49,141 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 142 transitions, 814 flow. Second operand 10 states. [2020-10-11 18:47:49,141 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:49,141 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 97 [2020-10-11 18:47:49,141 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:50,465 INFO L129 PetriNetUnfolder]: 2499/9754 cut-off events. [2020-10-11 18:47:50,465 INFO L130 PetriNetUnfolder]: For 14094/14499 co-relation queries the response was YES. [2020-10-11 18:47:50,550 INFO L80 FinitePrefix]: Finished finitePrefix Result has 27954 conditions, 9754 events. 2499/9754 cut-off events. For 14094/14499 co-relation queries the response was YES. Maximal size of possible extension queue 1572. Compared 138549 event pairs, 134 based on Foata normal form. 4/9226 useless extension candidates. Maximal degree in co-relation 27914. Up to 1130 conditions per place. [2020-10-11 18:47:50,561 INFO L132 encePairwiseOnDemand]: 84/97 looper letters, 44 selfloop transitions, 23 changer transitions 21/184 dead transitions. [2020-10-11 18:47:50,561 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 184 transitions, 1309 flow [2020-10-11 18:47:50,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:47:50,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:47:50,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 771 transitions. [2020-10-11 18:47:50,564 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7948453608247422 [2020-10-11 18:47:50,564 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 771 transitions. [2020-10-11 18:47:50,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 771 transitions. [2020-10-11 18:47:50,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:47:50,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 771 transitions. [2020-10-11 18:47:50,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:47:50,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:47:50,567 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:47:50,568 INFO L185 Difference]: Start difference. First operand has 161 places, 142 transitions, 814 flow. Second operand 10 states and 771 transitions. [2020-10-11 18:47:50,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 184 transitions, 1309 flow [2020-10-11 18:47:51,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 184 transitions, 1264 flow, removed 13 selfloop flow, removed 12 redundant places. [2020-10-11 18:47:51,394 INFO L241 Difference]: Finished difference. Result has 158 places, 154 transitions, 985 flow [2020-10-11 18:47:51,394 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=985, PETRI_PLACES=158, PETRI_TRANSITIONS=154} [2020-10-11 18:47:51,395 INFO L341 CegarLoopForPetriNet]: 102 programPoint places, 56 predicate places. [2020-10-11 18:47:51,395 INFO L481 AbstractCegarLoop]: Abstraction has has 158 places, 154 transitions, 985 flow [2020-10-11 18:47:51,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-11 18:47:51,395 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:47:51,395 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:47:51,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-11 18:47:51,395 INFO L429 AbstractCegarLoop]: === Iteration 14 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:47:51,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:47:51,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1191811439, now seen corresponding path program 5 times [2020-10-11 18:47:51,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:47:51,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596357801] [2020-10-11 18:47:51,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:47:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:47:52,127 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 22 [2020-10-11 18:47:52,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:47:52,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596357801] [2020-10-11 18:47:52,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:47:52,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-11 18:47:52,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441776974] [2020-10-11 18:47:52,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-11 18:47:52,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:47:52,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-11 18:47:52,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-10-11 18:47:58,030 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 97 [2020-10-11 18:47:58,031 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 154 transitions, 985 flow. Second operand 16 states. [2020-10-11 18:47:58,031 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:47:58,031 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 97 [2020-10-11 18:47:58,031 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:47:59,844 INFO L129 PetriNetUnfolder]: 3237/12609 cut-off events. [2020-10-11 18:47:59,845 INFO L130 PetriNetUnfolder]: For 21001/21693 co-relation queries the response was YES. [2020-10-11 18:48:00,027 INFO L80 FinitePrefix]: Finished finitePrefix Result has 37750 conditions, 12609 events. 3237/12609 cut-off events. For 21001/21693 co-relation queries the response was YES. Maximal size of possible extension queue 2116. Compared 186510 event pairs, 118 based on Foata normal form. 2/11886 useless extension candidates. Maximal degree in co-relation 37708. Up to 1451 conditions per place. [2020-10-11 18:48:00,037 INFO L132 encePairwiseOnDemand]: 83/97 looper letters, 31 selfloop transitions, 5 changer transitions 87/212 dead transitions. [2020-10-11 18:48:00,037 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 212 transitions, 1798 flow [2020-10-11 18:48:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-11 18:48:00,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-11 18:48:00,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 966 transitions. [2020-10-11 18:48:00,039 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7660586835844568 [2020-10-11 18:48:00,039 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 966 transitions. [2020-10-11 18:48:00,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 966 transitions. [2020-10-11 18:48:00,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:48:00,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 966 transitions. [2020-10-11 18:48:00,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-10-11 18:48:00,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 14 states. [2020-10-11 18:48:00,043 INFO L81 ComplementDD]: Finished complementDD. Result 14 states. [2020-10-11 18:48:00,043 INFO L185 Difference]: Start difference. First operand has 158 places, 154 transitions, 985 flow. Second operand 13 states and 966 transitions. [2020-10-11 18:48:00,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 212 transitions, 1798 flow [2020-10-11 18:48:01,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 212 transitions, 1747 flow, removed 25 selfloop flow, removed 4 redundant places. [2020-10-11 18:48:01,409 INFO L241 Difference]: Finished difference. Result has 170 places, 125 transitions, 696 flow [2020-10-11 18:48:01,409 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=952, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=696, PETRI_PLACES=170, PETRI_TRANSITIONS=125} [2020-10-11 18:48:01,410 INFO L341 CegarLoopForPetriNet]: 102 programPoint places, 68 predicate places. [2020-10-11 18:48:01,410 INFO L481 AbstractCegarLoop]: Abstraction has has 170 places, 125 transitions, 696 flow [2020-10-11 18:48:01,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-11 18:48:01,410 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:48:01,410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:48:01,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-11 18:48:01,410 INFO L429 AbstractCegarLoop]: === Iteration 15 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:48:01,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:48:01,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1448320279, now seen corresponding path program 6 times [2020-10-11 18:48:01,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:48:01,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431667905] [2020-10-11 18:48:01,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:48:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:48:01,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:48:01,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431667905] [2020-10-11 18:48:01,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:48:01,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-11 18:48:01,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377499450] [2020-10-11 18:48:01,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-11 18:48:01,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:48:01,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-11 18:48:01,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-11 18:48:03,382 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 97 [2020-10-11 18:48:03,383 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 125 transitions, 696 flow. Second operand 11 states. [2020-10-11 18:48:03,383 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:48:03,383 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 97 [2020-10-11 18:48:03,383 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:48:04,269 INFO L129 PetriNetUnfolder]: 1417/5712 cut-off events. [2020-10-11 18:48:04,269 INFO L130 PetriNetUnfolder]: For 9016/9231 co-relation queries the response was YES. [2020-10-11 18:48:04,353 INFO L80 FinitePrefix]: Finished finitePrefix Result has 16376 conditions, 5712 events. 1417/5712 cut-off events. For 9016/9231 co-relation queries the response was YES. Maximal size of possible extension queue 954. Compared 75720 event pairs, 66 based on Foata normal form. 2/5348 useless extension candidates. Maximal degree in co-relation 16330. Up to 688 conditions per place. [2020-10-11 18:48:04,362 INFO L132 encePairwiseOnDemand]: 85/97 looper letters, 23 selfloop transitions, 11 changer transitions 15/145 dead transitions. [2020-10-11 18:48:04,362 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 145 transitions, 979 flow [2020-10-11 18:48:04,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-11 18:48:04,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-11 18:48:04,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 876 transitions. [2020-10-11 18:48:04,364 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8209934395501406 [2020-10-11 18:48:04,364 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 876 transitions. [2020-10-11 18:48:04,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 876 transitions. [2020-10-11 18:48:04,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:48:04,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 876 transitions. [2020-10-11 18:48:04,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 12 states. [2020-10-11 18:48:04,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 12 states. [2020-10-11 18:48:04,367 INFO L81 ComplementDD]: Finished complementDD. Result 12 states. [2020-10-11 18:48:04,367 INFO L185 Difference]: Start difference. First operand has 170 places, 125 transitions, 696 flow. Second operand 11 states and 876 transitions. [2020-10-11 18:48:04,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 145 transitions, 979 flow [2020-10-11 18:48:04,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 145 transitions, 839 flow, removed 57 selfloop flow, removed 21 redundant places. [2020-10-11 18:48:04,618 INFO L241 Difference]: Finished difference. Result has 153 places, 125 transitions, 670 flow [2020-10-11 18:48:04,618 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=622, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=670, PETRI_PLACES=153, PETRI_TRANSITIONS=125} [2020-10-11 18:48:04,618 INFO L341 CegarLoopForPetriNet]: 102 programPoint places, 51 predicate places. [2020-10-11 18:48:04,618 INFO L481 AbstractCegarLoop]: Abstraction has has 153 places, 125 transitions, 670 flow [2020-10-11 18:48:04,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-11 18:48:04,619 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:48:04,619 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:48:04,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-11 18:48:04,619 INFO L429 AbstractCegarLoop]: === Iteration 16 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:48:04,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:48:04,619 INFO L82 PathProgramCache]: Analyzing trace with hash -188557805, now seen corresponding path program 7 times [2020-10-11 18:48:04,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:48:04,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900449838] [2020-10-11 18:48:04,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:48:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:48:05,449 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 28 [2020-10-11 18:48:05,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:48:05,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900449838] [2020-10-11 18:48:05,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:48:05,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-11 18:48:05,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484893979] [2020-10-11 18:48:05,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-11 18:48:05,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:48:05,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-11 18:48:05,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-10-11 18:48:12,641 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 97 [2020-10-11 18:48:12,642 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 125 transitions, 670 flow. Second operand 16 states. [2020-10-11 18:48:12,642 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:48:12,642 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 97 [2020-10-11 18:48:12,642 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:48:14,210 INFO L129 PetriNetUnfolder]: 1071/4457 cut-off events. [2020-10-11 18:48:14,210 INFO L130 PetriNetUnfolder]: For 5945/6068 co-relation queries the response was YES. [2020-10-11 18:48:14,240 INFO L80 FinitePrefix]: Finished finitePrefix Result has 12393 conditions, 4457 events. 1071/4457 cut-off events. For 5945/6068 co-relation queries the response was YES. Maximal size of possible extension queue 716. Compared 57215 event pairs, 59 based on Foata normal form. 2/4224 useless extension candidates. Maximal degree in co-relation 12362. Up to 503 conditions per place. [2020-10-11 18:48:14,243 INFO L132 encePairwiseOnDemand]: 85/97 looper letters, 0 selfloop transitions, 0 changer transitions 138/138 dead transitions. [2020-10-11 18:48:14,243 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 138 transitions, 875 flow [2020-10-11 18:48:14,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-11 18:48:14,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-11 18:48:14,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1265 transitions. [2020-10-11 18:48:14,245 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7671315949060037 [2020-10-11 18:48:14,245 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1265 transitions. [2020-10-11 18:48:14,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1265 transitions. [2020-10-11 18:48:14,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:48:14,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1265 transitions. [2020-10-11 18:48:14,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 18 states. [2020-10-11 18:48:14,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 18 states. [2020-10-11 18:48:14,249 INFO L81 ComplementDD]: Finished complementDD. Result 18 states. [2020-10-11 18:48:14,251 INFO L185 Difference]: Start difference. First operand has 153 places, 125 transitions, 670 flow. Second operand 17 states and 1265 transitions. [2020-10-11 18:48:14,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 138 transitions, 875 flow [2020-10-11 18:48:14,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 138 transitions, 812 flow, removed 27 selfloop flow, removed 8 redundant places. [2020-10-11 18:48:14,391 INFO L241 Difference]: Finished difference. Result has 155 places, 0 transitions, 0 flow [2020-10-11 18:48:14,392 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=625, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=0, PETRI_PLACES=155, PETRI_TRANSITIONS=0} [2020-10-11 18:48:14,392 INFO L341 CegarLoopForPetriNet]: 102 programPoint places, 53 predicate places. [2020-10-11 18:48:14,392 INFO L481 AbstractCegarLoop]: Abstraction has has 155 places, 0 transitions, 0 flow [2020-10-11 18:48:14,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-11 18:48:14,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-11 18:48:14,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 06:48:14 BasicIcfg [2020-10-11 18:48:14,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 18:48:14,399 INFO L168 Benchmark]: Toolchain (without parser) took 77804.38 ms. Allocated memory was 252.2 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 207.3 MB in the beginning and 611.9 MB in the end (delta: -404.6 MB). Peak memory consumption was 831.1 MB. Max. memory is 14.2 GB. [2020-10-11 18:48:14,399 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 252.2 MB. Free memory is still 228.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 18:48:14,400 INFO L168 Benchmark]: CACSL2BoogieTranslator took 900.09 ms. Allocated memory was 252.2 MB in the beginning and 316.1 MB in the end (delta: 64.0 MB). Free memory was 207.3 MB in the beginning and 259.4 MB in the end (delta: -52.1 MB). Peak memory consumption was 29.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:48:14,401 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.03 ms. Allocated memory is still 316.1 MB. Free memory was 256.8 MB in the beginning and 254.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:48:14,401 INFO L168 Benchmark]: Boogie Preprocessor took 100.15 ms. Allocated memory is still 316.1 MB. Free memory was 254.3 MB in the beginning and 249.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 14.2 GB. [2020-10-11 18:48:14,402 INFO L168 Benchmark]: RCFGBuilder took 4316.63 ms. Allocated memory was 316.1 MB in the beginning and 432.0 MB in the end (delta: 115.9 MB). Free memory was 249.3 MB in the beginning and 198.9 MB in the end (delta: 50.3 MB). Peak memory consumption was 166.2 MB. Max. memory is 14.2 GB. [2020-10-11 18:48:14,403 INFO L168 Benchmark]: TraceAbstraction took 72398.81 ms. Allocated memory was 432.0 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 198.9 MB in the beginning and 611.9 MB in the end (delta: -412.9 MB). Peak memory consumption was 643.0 MB. Max. memory is 14.2 GB. [2020-10-11 18:48:14,407 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 252.2 MB. Free memory is still 228.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 900.09 ms. Allocated memory was 252.2 MB in the beginning and 316.1 MB in the end (delta: 64.0 MB). Free memory was 207.3 MB in the beginning and 259.4 MB in the end (delta: -52.1 MB). Peak memory consumption was 29.5 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 83.03 ms. Allocated memory is still 316.1 MB. Free memory was 256.8 MB in the beginning and 254.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 100.15 ms. Allocated memory is still 316.1 MB. Free memory was 254.3 MB in the beginning and 249.3 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 14.2 GB. * RCFGBuilder took 4316.63 ms. Allocated memory was 316.1 MB in the beginning and 432.0 MB in the end (delta: 115.9 MB). Free memory was 249.3 MB in the beginning and 198.9 MB in the end (delta: 50.3 MB). Peak memory consumption was 166.2 MB. Max. memory is 14.2 GB. * TraceAbstraction took 72398.81 ms. Allocated memory was 432.0 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 198.9 MB in the beginning and 611.9 MB in the end (delta: -412.9 MB). Peak memory consumption was 643.0 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 96 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 72.2s, OverallIterations: 16, TraceHistogramMax: 1, AutomataDifference: 63.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 845 SDtfs, 1390 SDslu, 6367 SDs, 0 SdLazy, 7600 SolverSat, 795 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 276 GetRequests, 31 SyntacticMatches, 4 SemanticMatches, 241 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 720 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=985occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 1069 NumberOfCodeBlocks, 1069 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1053 ConstructedInterpolants, 0 QuantifiedInterpolants, 492665 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...