/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/rfi002_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 18:28:02,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 18:28:02,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 18:28:02,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 18:28:02,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 18:28:02,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 18:28:02,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 18:28:02,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 18:28:02,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 18:28:02,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 18:28:02,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 18:28:02,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 18:28:02,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 18:28:02,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 18:28:02,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 18:28:02,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 18:28:02,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 18:28:02,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 18:28:02,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 18:28:02,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 18:28:02,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 18:28:02,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 18:28:02,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 18:28:02,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 18:28:02,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 18:28:02,347 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 18:28:02,348 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 18:28:02,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 18:28:02,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 18:28:02,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 18:28:02,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 18:28:02,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 18:28:02,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 18:28:02,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 18:28:02,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 18:28:02,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 18:28:02,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 18:28:02,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 18:28:02,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 18:28:02,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 18:28:02,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 18:28:02,357 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 18:28:02,390 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 18:28:02,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 18:28:02,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 18:28:02,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 18:28:02,392 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 18:28:02,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 18:28:02,392 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 18:28:02,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 18:28:02,393 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 18:28:02,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 18:28:02,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 18:28:02,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 18:28:02,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 18:28:02,394 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 18:28:02,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 18:28:02,394 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 18:28:02,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 18:28:02,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 18:28:02,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 18:28:02,395 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 18:28:02,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 18:28:02,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 18:28:02,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 18:28:02,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 18:28:02,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 18:28:02,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 18:28:02,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 18:28:02,397 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 18:28:02,397 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 18:28:02,397 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 18:28:02,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 18:28:02,705 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 18:28:02,709 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 18:28:02,710 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 18:28:02,711 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 18:28:02,711 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi002_pso.opt.i [2020-10-11 18:28:02,777 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1adcf664/c9e83a0ef6164e99a4f180132ee766e9/FLAGc39c4b605 [2020-10-11 18:28:03,341 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 18:28:03,342 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_pso.opt.i [2020-10-11 18:28:03,358 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1adcf664/c9e83a0ef6164e99a4f180132ee766e9/FLAGc39c4b605 [2020-10-11 18:28:03,605 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1adcf664/c9e83a0ef6164e99a4f180132ee766e9 [2020-10-11 18:28:03,614 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 18:28:03,616 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 18:28:03,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 18:28:03,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 18:28:03,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 18:28:03,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:28:03" (1/1) ... [2020-10-11 18:28:03,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d5e28d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:03, skipping insertion in model container [2020-10-11 18:28:03,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:28:03" (1/1) ... [2020-10-11 18:28:03,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 18:28:03,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 18:28:04,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:28:04,258 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 18:28:04,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:28:04,456 INFO L208 MainTranslator]: Completed translation [2020-10-11 18:28:04,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:04 WrapperNode [2020-10-11 18:28:04,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 18:28:04,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 18:28:04,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 18:28:04,458 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 18:28:04,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:04" (1/1) ... [2020-10-11 18:28:04,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:04" (1/1) ... [2020-10-11 18:28:04,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 18:28:04,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 18:28:04,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 18:28:04,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 18:28:04,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:04" (1/1) ... [2020-10-11 18:28:04,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:04" (1/1) ... [2020-10-11 18:28:04,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:04" (1/1) ... [2020-10-11 18:28:04,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:04" (1/1) ... [2020-10-11 18:28:04,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:04" (1/1) ... [2020-10-11 18:28:04,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:04" (1/1) ... [2020-10-11 18:28:04,585 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:04" (1/1) ... [2020-10-11 18:28:04,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 18:28:04,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 18:28:04,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 18:28:04,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 18:28:04,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:04" (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 18:28:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 18:28:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 18:28:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 18:28:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 18:28:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 18:28:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 18:28:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 18:28:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 18:28:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 18:28:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 18:28:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 18:28:04,672 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 18:28:08,296 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 18:28:08,296 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-11 18:28:08,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:28:08 BoogieIcfgContainer [2020-10-11 18:28:08,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 18:28:08,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 18:28:08,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 18:28:08,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 18:28:08,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:28:03" (1/3) ... [2020-10-11 18:28:08,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155e6a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:28:08, skipping insertion in model container [2020-10-11 18:28:08,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:28:04" (2/3) ... [2020-10-11 18:28:08,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@155e6a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:28:08, skipping insertion in model container [2020-10-11 18:28:08,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:28:08" (3/3) ... [2020-10-11 18:28:08,308 INFO L111 eAbstractionObserver]: Analyzing ICFG rfi002_pso.opt.i [2020-10-11 18:28:08,321 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 18:28:08,330 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-11 18:28:08,331 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 18:28:08,369 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,369 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,370 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,370 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,370 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,370 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,371 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,371 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,371 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,371 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,371 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,372 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,372 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,373 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,373 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,373 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,373 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,373 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,373 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,374 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,374 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,374 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,374 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,374 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,375 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,375 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,375 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,375 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,375 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,376 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,376 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,376 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,376 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,376 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,376 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,377 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,377 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,377 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,377 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,377 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,378 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,378 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,378 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,378 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,378 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,381 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,382 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,382 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,382 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,383 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,383 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,383 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,384 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,384 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,384 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,384 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,385 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,385 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,385 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,385 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,386 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,386 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,386 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,386 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,386 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,386 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,424 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,425 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,426 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,427 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,427 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,427 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,430 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,430 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,431 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,431 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,431 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,431 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,431 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,431 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,432 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,432 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,432 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,434 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,434 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,434 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,435 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite64| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,435 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite65| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,435 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite62| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,435 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite63| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,440 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,440 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,440 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,440 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,440 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,441 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,441 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,441 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,441 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,441 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,442 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,442 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,442 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,442 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,442 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,442 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,443 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,443 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,443 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,443 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,443 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,444 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,444 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,444 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,444 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,444 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,444 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,445 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,446 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,455 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,456 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,456 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite65| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,456 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,456 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,456 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,457 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,457 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,457 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,457 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite62| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,458 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite63| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,458 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite64| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,458 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,458 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,458 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,459 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,459 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,459 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,459 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,459 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,459 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,460 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,460 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,460 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,460 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,460 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,461 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,461 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,461 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,461 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,461 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,462 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,462 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:28:08,480 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-11 18:28:08,502 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 18:28:08,502 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 18:28:08,503 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 18:28:08,503 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 18:28:08,503 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 18:28:08,503 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 18:28:08,503 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 18:28:08,503 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 18:28:08,520 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 80 transitions, 170 flow [2020-10-11 18:28:08,562 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-10-11 18:28:08,562 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:28:08,567 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2020-10-11 18:28:08,567 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 80 transitions, 170 flow [2020-10-11 18:28:08,574 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 78 transitions, 162 flow [2020-10-11 18:28:08,586 INFO L129 PetriNetUnfolder]: 0/44 cut-off events. [2020-10-11 18:28:08,587 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:28:08,587 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:08,588 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] [2020-10-11 18:28:08,589 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:08,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:08,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1722193573, now seen corresponding path program 1 times [2020-10-11 18:28:08,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:08,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485421365] [2020-10-11 18:28:08,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:08,910 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 18:28:08,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485421365] [2020-10-11 18:28:08,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:08,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 18:28:08,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783204590] [2020-10-11 18:28:08,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 18:28:08,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:08,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 18:28:08,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 18:28:09,074 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 80 [2020-10-11 18:28:09,076 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 78 transitions, 162 flow. Second operand 3 states. [2020-10-11 18:28:09,076 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:09,076 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 80 [2020-10-11 18:28:09,078 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:09,105 INFO L129 PetriNetUnfolder]: 0/75 cut-off events. [2020-10-11 18:28:09,106 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:28:09,106 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 0/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 4/77 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2020-10-11 18:28:09,107 INFO L132 encePairwiseOnDemand]: 75/80 looper letters, 0 selfloop transitions, 2 changer transitions 9/75 dead transitions. [2020-10-11 18:28:09,108 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 75 transitions, 160 flow [2020-10-11 18:28:09,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 18:28:09,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 18:28:09,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2020-10-11 18:28:09,124 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9666666666666667 [2020-10-11 18:28:09,125 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 232 transitions. [2020-10-11 18:28:09,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 232 transitions. [2020-10-11 18:28:09,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:09,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 232 transitions. [2020-10-11 18:28:09,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 18:28:09,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 18:28:09,140 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 18:28:09,143 INFO L185 Difference]: Start difference. First operand has 83 places, 78 transitions, 162 flow. Second operand 3 states and 232 transitions. [2020-10-11 18:28:09,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 75 transitions, 160 flow [2020-10-11 18:28:09,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 75 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-11 18:28:09,152 INFO L241 Difference]: Finished difference. Result has 82 places, 66 transitions, 140 flow [2020-10-11 18:28:09,155 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=82, PETRI_TRANSITIONS=66} [2020-10-11 18:28:09,156 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, -1 predicate places. [2020-10-11 18:28:09,156 INFO L481 AbstractCegarLoop]: Abstraction has has 82 places, 66 transitions, 140 flow [2020-10-11 18:28:09,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 18:28:09,156 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:09,157 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] [2020-10-11 18:28:09,157 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 18:28:09,157 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:09,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:09,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1793725615, now seen corresponding path program 1 times [2020-10-11 18:28:09,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:09,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832026507] [2020-10-11 18:28:09,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:09,571 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 18:28:09,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832026507] [2020-10-11 18:28:09,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:09,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-11 18:28:09,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975251688] [2020-10-11 18:28:09,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-11 18:28:09,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:09,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-11 18:28:09,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-11 18:28:10,121 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 80 [2020-10-11 18:28:10,121 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 66 transitions, 140 flow. Second operand 9 states. [2020-10-11 18:28:10,122 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:10,122 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 80 [2020-10-11 18:28:10,122 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:10,707 INFO L129 PetriNetUnfolder]: 284/630 cut-off events. [2020-10-11 18:28:10,707 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-11 18:28:10,710 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1186 conditions, 630 events. 284/630 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3442 event pairs, 147 based on Foata normal form. 20/635 useless extension candidates. Maximal degree in co-relation 1143. Up to 305 conditions per place. [2020-10-11 18:28:10,713 INFO L132 encePairwiseOnDemand]: 69/80 looper letters, 16 selfloop transitions, 8 changer transitions 44/116 dead transitions. [2020-10-11 18:28:10,714 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 116 transitions, 390 flow [2020-10-11 18:28:10,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-11 18:28:10,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-11 18:28:10,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 956 transitions. [2020-10-11 18:28:10,721 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7966666666666666 [2020-10-11 18:28:10,721 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 956 transitions. [2020-10-11 18:28:10,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 956 transitions. [2020-10-11 18:28:10,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:10,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 956 transitions. [2020-10-11 18:28:10,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 16 states. [2020-10-11 18:28:10,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 16 states. [2020-10-11 18:28:10,730 INFO L81 ComplementDD]: Finished complementDD. Result 16 states. [2020-10-11 18:28:10,730 INFO L185 Difference]: Start difference. First operand has 82 places, 66 transitions, 140 flow. Second operand 15 states and 956 transitions. [2020-10-11 18:28:10,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 116 transitions, 390 flow [2020-10-11 18:28:10,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 116 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-11 18:28:10,735 INFO L241 Difference]: Finished difference. Result has 96 places, 70 transitions, 208 flow [2020-10-11 18:28:10,736 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=208, PETRI_PLACES=96, PETRI_TRANSITIONS=70} [2020-10-11 18:28:10,737 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 13 predicate places. [2020-10-11 18:28:10,737 INFO L481 AbstractCegarLoop]: Abstraction has has 96 places, 70 transitions, 208 flow [2020-10-11 18:28:10,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-11 18:28:10,737 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:10,737 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] [2020-10-11 18:28:10,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 18:28:10,738 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:10,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:10,738 INFO L82 PathProgramCache]: Analyzing trace with hash -653061358, now seen corresponding path program 1 times [2020-10-11 18:28:10,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:10,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373225400] [2020-10-11 18:28:10,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:10,927 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 18:28:10,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373225400] [2020-10-11 18:28:10,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:10,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:28:10,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566282668] [2020-10-11 18:28:10,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:28:10,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:10,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:28:10,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:28:11,119 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 80 [2020-10-11 18:28:11,120 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 70 transitions, 208 flow. Second operand 6 states. [2020-10-11 18:28:11,120 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:11,120 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 80 [2020-10-11 18:28:11,120 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:11,291 INFO L129 PetriNetUnfolder]: 27/179 cut-off events. [2020-10-11 18:28:11,291 INFO L130 PetriNetUnfolder]: For 256/265 co-relation queries the response was YES. [2020-10-11 18:28:11,293 INFO L80 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 179 events. 27/179 cut-off events. For 256/265 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 691 event pairs, 16 based on Foata normal form. 7/179 useless extension candidates. Maximal degree in co-relation 377. Up to 20 conditions per place. [2020-10-11 18:28:11,294 INFO L132 encePairwiseOnDemand]: 74/80 looper letters, 7 selfloop transitions, 5 changer transitions 6/80 dead transitions. [2020-10-11 18:28:11,294 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 80 transitions, 292 flow [2020-10-11 18:28:11,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:28:11,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:28:11,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 650 transitions. [2020-10-11 18:28:11,297 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9027777777777778 [2020-10-11 18:28:11,297 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 650 transitions. [2020-10-11 18:28:11,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 650 transitions. [2020-10-11 18:28:11,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:11,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 650 transitions. [2020-10-11 18:28:11,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:28:11,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:28:11,302 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:28:11,302 INFO L185 Difference]: Start difference. First operand has 96 places, 70 transitions, 208 flow. Second operand 9 states and 650 transitions. [2020-10-11 18:28:11,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 80 transitions, 292 flow [2020-10-11 18:28:11,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 80 transitions, 274 flow, removed 7 selfloop flow, removed 5 redundant places. [2020-10-11 18:28:11,308 INFO L241 Difference]: Finished difference. Result has 97 places, 73 transitions, 248 flow [2020-10-11 18:28:11,308 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=248, PETRI_PLACES=97, PETRI_TRANSITIONS=73} [2020-10-11 18:28:11,308 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 14 predicate places. [2020-10-11 18:28:11,308 INFO L481 AbstractCegarLoop]: Abstraction has has 97 places, 73 transitions, 248 flow [2020-10-11 18:28:11,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:28:11,309 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:11,309 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] [2020-10-11 18:28:11,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 18:28:11,309 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:11,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:11,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1104706575, now seen corresponding path program 1 times [2020-10-11 18:28:11,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:11,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754013068] [2020-10-11 18:28:11,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:11,461 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 18:28:11,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754013068] [2020-10-11 18:28:11,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:11,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:28:11,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938089091] [2020-10-11 18:28:11,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:28:11,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:11,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:28:11,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:28:11,624 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 80 [2020-10-11 18:28:11,625 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 73 transitions, 248 flow. Second operand 6 states. [2020-10-11 18:28:11,625 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:11,625 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 80 [2020-10-11 18:28:11,625 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:11,800 INFO L129 PetriNetUnfolder]: 25/187 cut-off events. [2020-10-11 18:28:11,801 INFO L130 PetriNetUnfolder]: For 451/480 co-relation queries the response was YES. [2020-10-11 18:28:11,805 INFO L80 FinitePrefix]: Finished finitePrefix Result has 521 conditions, 187 events. 25/187 cut-off events. For 451/480 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 733 event pairs, 14 based on Foata normal form. 4/186 useless extension candidates. Maximal degree in co-relation 483. Up to 30 conditions per place. [2020-10-11 18:28:11,806 INFO L132 encePairwiseOnDemand]: 74/80 looper letters, 9 selfloop transitions, 2 changer transitions 15/88 dead transitions. [2020-10-11 18:28:11,806 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 88 transitions, 408 flow [2020-10-11 18:28:11,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:28:11,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:28:11,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 650 transitions. [2020-10-11 18:28:11,808 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9027777777777778 [2020-10-11 18:28:11,809 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 650 transitions. [2020-10-11 18:28:11,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 650 transitions. [2020-10-11 18:28:11,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:11,809 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 650 transitions. [2020-10-11 18:28:11,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:28:11,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:28:11,812 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:28:11,812 INFO L185 Difference]: Start difference. First operand has 97 places, 73 transitions, 248 flow. Second operand 9 states and 650 transitions. [2020-10-11 18:28:11,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 88 transitions, 408 flow [2020-10-11 18:28:11,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 88 transitions, 390 flow, removed 8 selfloop flow, removed 4 redundant places. [2020-10-11 18:28:11,818 INFO L241 Difference]: Finished difference. Result has 105 places, 73 transitions, 268 flow [2020-10-11 18:28:11,819 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=268, PETRI_PLACES=105, PETRI_TRANSITIONS=73} [2020-10-11 18:28:11,819 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 22 predicate places. [2020-10-11 18:28:11,819 INFO L481 AbstractCegarLoop]: Abstraction has has 105 places, 73 transitions, 268 flow [2020-10-11 18:28:11,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:28:11,819 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:11,820 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] [2020-10-11 18:28:11,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 18:28:11,820 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:11,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:11,820 INFO L82 PathProgramCache]: Analyzing trace with hash 179474734, now seen corresponding path program 1 times [2020-10-11 18:28:11,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:11,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534055241] [2020-10-11 18:28:11,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:12,186 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 18:28:12,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534055241] [2020-10-11 18:28:12,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:12,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-11 18:28:12,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908966019] [2020-10-11 18:28:12,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-11 18:28:12,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:12,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-11 18:28:12,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-11 18:28:14,148 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 80 [2020-10-11 18:28:14,149 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 73 transitions, 268 flow. Second operand 12 states. [2020-10-11 18:28:14,149 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:14,150 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 80 [2020-10-11 18:28:14,150 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:14,712 INFO L129 PetriNetUnfolder]: 177/453 cut-off events. [2020-10-11 18:28:14,713 INFO L130 PetriNetUnfolder]: For 1431/1437 co-relation queries the response was YES. [2020-10-11 18:28:14,717 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1505 conditions, 453 events. 177/453 cut-off events. For 1431/1437 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2081 event pairs, 51 based on Foata normal form. 7/447 useless extension candidates. Maximal degree in co-relation 1437. Up to 215 conditions per place. [2020-10-11 18:28:14,724 INFO L132 encePairwiseOnDemand]: 68/80 looper letters, 25 selfloop transitions, 10 changer transitions 33/115 dead transitions. [2020-10-11 18:28:14,724 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 115 transitions, 636 flow [2020-10-11 18:28:14,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-11 18:28:14,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-11 18:28:14,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 813 transitions. [2020-10-11 18:28:14,729 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7817307692307692 [2020-10-11 18:28:14,729 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 813 transitions. [2020-10-11 18:28:14,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 813 transitions. [2020-10-11 18:28:14,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:14,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 813 transitions. [2020-10-11 18:28:14,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-10-11 18:28:14,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 14 states. [2020-10-11 18:28:14,735 INFO L81 ComplementDD]: Finished complementDD. Result 14 states. [2020-10-11 18:28:14,735 INFO L185 Difference]: Start difference. First operand has 105 places, 73 transitions, 268 flow. Second operand 13 states and 813 transitions. [2020-10-11 18:28:14,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 115 transitions, 636 flow [2020-10-11 18:28:14,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 115 transitions, 538 flow, removed 47 selfloop flow, removed 11 redundant places. [2020-10-11 18:28:14,744 INFO L241 Difference]: Finished difference. Result has 108 places, 74 transitions, 270 flow [2020-10-11 18:28:14,744 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=270, PETRI_PLACES=108, PETRI_TRANSITIONS=74} [2020-10-11 18:28:14,745 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 25 predicate places. [2020-10-11 18:28:14,745 INFO L481 AbstractCegarLoop]: Abstraction has has 108 places, 74 transitions, 270 flow [2020-10-11 18:28:14,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-11 18:28:14,745 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:14,745 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] [2020-10-11 18:28:14,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 18:28:14,746 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:14,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:14,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1665391378, now seen corresponding path program 2 times [2020-10-11 18:28:14,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:14,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146563646] [2020-10-11 18:28:14,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:15,189 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 18:28:15,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146563646] [2020-10-11 18:28:15,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:15,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-11 18:28:15,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833224679] [2020-10-11 18:28:15,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-11 18:28:15,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:15,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-11 18:28:15,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2020-10-11 18:28:18,000 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 80 [2020-10-11 18:28:18,001 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 74 transitions, 270 flow. Second operand 15 states. [2020-10-11 18:28:18,002 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:18,002 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 80 [2020-10-11 18:28:18,002 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:18,615 INFO L129 PetriNetUnfolder]: 142/411 cut-off events. [2020-10-11 18:28:18,615 INFO L130 PetriNetUnfolder]: For 1687/1779 co-relation queries the response was YES. [2020-10-11 18:28:18,618 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1365 conditions, 411 events. 142/411 cut-off events. For 1687/1779 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1877 event pairs, 15 based on Foata normal form. 15/415 useless extension candidates. Maximal degree in co-relation 1294. Up to 159 conditions per place. [2020-10-11 18:28:18,621 INFO L132 encePairwiseOnDemand]: 66/80 looper letters, 29 selfloop transitions, 17 changer transitions 19/110 dead transitions. [2020-10-11 18:28:18,621 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 110 transitions, 620 flow [2020-10-11 18:28:18,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-11 18:28:18,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-11 18:28:18,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 957 transitions. [2020-10-11 18:28:18,631 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.74765625 [2020-10-11 18:28:18,632 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 957 transitions. [2020-10-11 18:28:18,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 957 transitions. [2020-10-11 18:28:18,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:18,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 957 transitions. [2020-10-11 18:28:18,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 17 states. [2020-10-11 18:28:18,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 17 states. [2020-10-11 18:28:18,638 INFO L81 ComplementDD]: Finished complementDD. Result 17 states. [2020-10-11 18:28:18,639 INFO L185 Difference]: Start difference. First operand has 108 places, 74 transitions, 270 flow. Second operand 16 states and 957 transitions. [2020-10-11 18:28:18,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 110 transitions, 620 flow [2020-10-11 18:28:18,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 110 transitions, 519 flow, removed 44 selfloop flow, removed 13 redundant places. [2020-10-11 18:28:18,646 INFO L241 Difference]: Finished difference. Result has 109 places, 79 transitions, 332 flow [2020-10-11 18:28:18,646 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=332, PETRI_PLACES=109, PETRI_TRANSITIONS=79} [2020-10-11 18:28:18,647 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 26 predicate places. [2020-10-11 18:28:18,647 INFO L481 AbstractCegarLoop]: Abstraction has has 109 places, 79 transitions, 332 flow [2020-10-11 18:28:18,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-11 18:28:18,647 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:18,647 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] [2020-10-11 18:28:18,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 18:28:18,648 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:18,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:18,648 INFO L82 PathProgramCache]: Analyzing trace with hash 195820654, now seen corresponding path program 3 times [2020-10-11 18:28:18,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:18,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137371179] [2020-10-11 18:28:18,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:19,032 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 18:28:19,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137371179] [2020-10-11 18:28:19,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:19,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-11 18:28:19,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407866374] [2020-10-11 18:28:19,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-11 18:28:19,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:19,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-11 18:28:19,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2020-10-11 18:28:20,109 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 80 [2020-10-11 18:28:20,110 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 79 transitions, 332 flow. Second operand 13 states. [2020-10-11 18:28:20,110 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:20,110 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 80 [2020-10-11 18:28:20,110 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:20,881 INFO L129 PetriNetUnfolder]: 144/464 cut-off events. [2020-10-11 18:28:20,883 INFO L130 PetriNetUnfolder]: For 1338/1368 co-relation queries the response was YES. [2020-10-11 18:28:20,888 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1468 conditions, 464 events. 144/464 cut-off events. For 1338/1368 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2374 event pairs, 21 based on Foata normal form. 22/475 useless extension candidates. Maximal degree in co-relation 1413. Up to 121 conditions per place. [2020-10-11 18:28:20,890 INFO L132 encePairwiseOnDemand]: 68/80 looper letters, 24 selfloop transitions, 16 changer transitions 33/122 dead transitions. [2020-10-11 18:28:20,890 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 122 transitions, 706 flow [2020-10-11 18:28:20,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-11 18:28:20,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-11 18:28:20,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1052 transitions. [2020-10-11 18:28:20,898 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7735294117647059 [2020-10-11 18:28:20,898 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1052 transitions. [2020-10-11 18:28:20,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1052 transitions. [2020-10-11 18:28:20,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:20,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1052 transitions. [2020-10-11 18:28:20,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 18 states. [2020-10-11 18:28:20,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 18 states. [2020-10-11 18:28:20,907 INFO L81 ComplementDD]: Finished complementDD. Result 18 states. [2020-10-11 18:28:20,907 INFO L185 Difference]: Start difference. First operand has 109 places, 79 transitions, 332 flow. Second operand 17 states and 1052 transitions. [2020-10-11 18:28:20,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 122 transitions, 706 flow [2020-10-11 18:28:20,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 122 transitions, 617 flow, removed 38 selfloop flow, removed 12 redundant places. [2020-10-11 18:28:20,916 INFO L241 Difference]: Finished difference. Result has 119 places, 83 transitions, 382 flow [2020-10-11 18:28:20,916 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=382, PETRI_PLACES=119, PETRI_TRANSITIONS=83} [2020-10-11 18:28:20,917 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 36 predicate places. [2020-10-11 18:28:20,917 INFO L481 AbstractCegarLoop]: Abstraction has has 119 places, 83 transitions, 382 flow [2020-10-11 18:28:20,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-11 18:28:20,917 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:20,917 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] [2020-10-11 18:28:20,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 18:28:20,918 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:20,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:20,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1762888229, now seen corresponding path program 1 times [2020-10-11 18:28:20,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:20,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135265188] [2020-10-11 18:28:20,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:21,224 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 18:28:21,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135265188] [2020-10-11 18:28:21,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:21,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:28:21,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355950776] [2020-10-11 18:28:21,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:28:21,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:21,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:28:21,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:28:21,671 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 80 [2020-10-11 18:28:21,672 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 83 transitions, 382 flow. Second operand 7 states. [2020-10-11 18:28:21,672 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:21,672 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 80 [2020-10-11 18:28:21,672 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:21,970 INFO L129 PetriNetUnfolder]: 145/520 cut-off events. [2020-10-11 18:28:21,970 INFO L130 PetriNetUnfolder]: For 1252/1414 co-relation queries the response was YES. [2020-10-11 18:28:21,973 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1633 conditions, 520 events. 145/520 cut-off events. For 1252/1414 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3313 event pairs, 39 based on Foata normal form. 13/520 useless extension candidates. Maximal degree in co-relation 1567. Up to 172 conditions per place. [2020-10-11 18:28:21,976 INFO L132 encePairwiseOnDemand]: 70/80 looper letters, 28 selfloop transitions, 8 changer transitions 24/111 dead transitions. [2020-10-11 18:28:21,976 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 111 transitions, 678 flow [2020-10-11 18:28:21,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 18:28:21,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-11 18:28:21,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 465 transitions. [2020-10-11 18:28:21,979 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8303571428571429 [2020-10-11 18:28:21,979 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 465 transitions. [2020-10-11 18:28:21,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 465 transitions. [2020-10-11 18:28:21,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:21,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 465 transitions. [2020-10-11 18:28:21,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-11 18:28:21,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-11 18:28:21,983 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-11 18:28:21,983 INFO L185 Difference]: Start difference. First operand has 119 places, 83 transitions, 382 flow. Second operand 7 states and 465 transitions. [2020-10-11 18:28:21,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 111 transitions, 678 flow [2020-10-11 18:28:21,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 111 transitions, 621 flow, removed 24 selfloop flow, removed 16 redundant places. [2020-10-11 18:28:21,990 INFO L241 Difference]: Finished difference. Result has 105 places, 87 transitions, 409 flow [2020-10-11 18:28:21,991 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=409, PETRI_PLACES=105, PETRI_TRANSITIONS=87} [2020-10-11 18:28:21,991 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 22 predicate places. [2020-10-11 18:28:21,991 INFO L481 AbstractCegarLoop]: Abstraction has has 105 places, 87 transitions, 409 flow [2020-10-11 18:28:21,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:28:21,992 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:21,992 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] [2020-10-11 18:28:21,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 18:28:21,992 INFO L429 AbstractCegarLoop]: === Iteration 9 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:21,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:21,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1550068067, now seen corresponding path program 2 times [2020-10-11 18:28:21,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:21,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916910140] [2020-10-11 18:28:21,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:22,273 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 18:28:22,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916910140] [2020-10-11 18:28:22,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:22,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-11 18:28:22,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838068619] [2020-10-11 18:28:22,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-11 18:28:22,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:22,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-11 18:28:22,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-11 18:28:22,977 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 80 [2020-10-11 18:28:22,978 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 87 transitions, 409 flow. Second operand 9 states. [2020-10-11 18:28:22,978 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:22,978 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 80 [2020-10-11 18:28:22,978 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:23,345 INFO L129 PetriNetUnfolder]: 100/390 cut-off events. [2020-10-11 18:28:23,345 INFO L130 PetriNetUnfolder]: For 1082/1585 co-relation queries the response was YES. [2020-10-11 18:28:23,347 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1289 conditions, 390 events. 100/390 cut-off events. For 1082/1585 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2120 event pairs, 31 based on Foata normal form. 22/399 useless extension candidates. Maximal degree in co-relation 1240. Up to 146 conditions per place. [2020-10-11 18:28:23,350 INFO L132 encePairwiseOnDemand]: 70/80 looper letters, 28 selfloop transitions, 10 changer transitions 23/110 dead transitions. [2020-10-11 18:28:23,350 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 110 transitions, 687 flow [2020-10-11 18:28:23,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-11 18:28:23,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-11 18:28:23,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 518 transitions. [2020-10-11 18:28:23,355 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.809375 [2020-10-11 18:28:23,355 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 518 transitions. [2020-10-11 18:28:23,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 518 transitions. [2020-10-11 18:28:23,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:23,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 518 transitions. [2020-10-11 18:28:23,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 9 states. [2020-10-11 18:28:23,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 9 states. [2020-10-11 18:28:23,360 INFO L81 ComplementDD]: Finished complementDD. Result 9 states. [2020-10-11 18:28:23,360 INFO L185 Difference]: Start difference. First operand has 105 places, 87 transitions, 409 flow. Second operand 8 states and 518 transitions. [2020-10-11 18:28:23,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 110 transitions, 687 flow [2020-10-11 18:28:23,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 110 transitions, 646 flow, removed 14 selfloop flow, removed 6 redundant places. [2020-10-11 18:28:23,367 INFO L241 Difference]: Finished difference. Result has 107 places, 87 transitions, 422 flow [2020-10-11 18:28:23,367 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=422, PETRI_PLACES=107, PETRI_TRANSITIONS=87} [2020-10-11 18:28:23,368 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 24 predicate places. [2020-10-11 18:28:23,368 INFO L481 AbstractCegarLoop]: Abstraction has has 107 places, 87 transitions, 422 flow [2020-10-11 18:28:23,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-11 18:28:23,368 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:23,368 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] [2020-10-11 18:28:23,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-11 18:28:23,369 INFO L429 AbstractCegarLoop]: === Iteration 10 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:23,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:23,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1575729877, now seen corresponding path program 3 times [2020-10-11 18:28:23,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:23,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297906354] [2020-10-11 18:28:23,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:23,819 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 18:28:23,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297906354] [2020-10-11 18:28:23,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:23,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-11 18:28:23,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778232166] [2020-10-11 18:28:23,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-11 18:28:23,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:23,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-11 18:28:23,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-10-11 18:28:26,657 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 80 [2020-10-11 18:28:26,658 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 87 transitions, 422 flow. Second operand 14 states. [2020-10-11 18:28:26,658 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:26,658 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 80 [2020-10-11 18:28:26,658 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:27,313 INFO L129 PetriNetUnfolder]: 97/373 cut-off events. [2020-10-11 18:28:27,313 INFO L130 PetriNetUnfolder]: For 1173/1551 co-relation queries the response was YES. [2020-10-11 18:28:27,315 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1310 conditions, 373 events. 97/373 cut-off events. For 1173/1551 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2021 event pairs, 22 based on Foata normal form. 31/397 useless extension candidates. Maximal degree in co-relation 1259. Up to 146 conditions per place. [2020-10-11 18:28:27,319 INFO L132 encePairwiseOnDemand]: 63/80 looper letters, 34 selfloop transitions, 19 changer transitions 20/118 dead transitions. [2020-10-11 18:28:27,319 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 118 transitions, 794 flow [2020-10-11 18:28:27,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-11 18:28:27,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-11 18:28:27,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 896 transitions. [2020-10-11 18:28:27,328 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7466666666666667 [2020-10-11 18:28:27,328 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 896 transitions. [2020-10-11 18:28:27,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 896 transitions. [2020-10-11 18:28:27,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:27,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 896 transitions. [2020-10-11 18:28:27,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 16 states. [2020-10-11 18:28:27,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 16 states. [2020-10-11 18:28:27,336 INFO L81 ComplementDD]: Finished complementDD. Result 16 states. [2020-10-11 18:28:27,336 INFO L185 Difference]: Start difference. First operand has 107 places, 87 transitions, 422 flow. Second operand 15 states and 896 transitions. [2020-10-11 18:28:27,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 118 transitions, 794 flow [2020-10-11 18:28:27,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 118 transitions, 758 flow, removed 9 selfloop flow, removed 7 redundant places. [2020-10-11 18:28:27,343 INFO L241 Difference]: Finished difference. Result has 118 places, 95 transitions, 543 flow [2020-10-11 18:28:27,344 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=543, PETRI_PLACES=118, PETRI_TRANSITIONS=95} [2020-10-11 18:28:27,344 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 35 predicate places. [2020-10-11 18:28:27,345 INFO L481 AbstractCegarLoop]: Abstraction has has 118 places, 95 transitions, 543 flow [2020-10-11 18:28:27,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-11 18:28:27,345 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:27,345 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] [2020-10-11 18:28:27,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-11 18:28:27,346 INFO L429 AbstractCegarLoop]: === Iteration 11 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:27,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:27,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1805715999, now seen corresponding path program 4 times [2020-10-11 18:28:27,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:27,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399679036] [2020-10-11 18:28:27,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:27,843 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 18:28:27,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399679036] [2020-10-11 18:28:27,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:27,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-11 18:28:27,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816184464] [2020-10-11 18:28:27,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-11 18:28:27,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:27,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-11 18:28:27,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-10-11 18:28:29,430 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 80 [2020-10-11 18:28:29,431 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 95 transitions, 543 flow. Second operand 15 states. [2020-10-11 18:28:29,431 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:29,431 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 80 [2020-10-11 18:28:29,431 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:30,391 INFO L129 PetriNetUnfolder]: 93/361 cut-off events. [2020-10-11 18:28:30,391 INFO L130 PetriNetUnfolder]: For 1713/2463 co-relation queries the response was YES. [2020-10-11 18:28:30,393 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1434 conditions, 361 events. 93/361 cut-off events. For 1713/2463 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1892 event pairs, 9 based on Foata normal form. 48/403 useless extension candidates. Maximal degree in co-relation 1376. Up to 114 conditions per place. [2020-10-11 18:28:30,395 INFO L132 encePairwiseOnDemand]: 66/80 looper letters, 43 selfloop transitions, 19 changer transitions 20/126 dead transitions. [2020-10-11 18:28:30,396 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 126 transitions, 963 flow [2020-10-11 18:28:30,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-11 18:28:30,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-11 18:28:30,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 941 transitions. [2020-10-11 18:28:30,404 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.73515625 [2020-10-11 18:28:30,404 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 941 transitions. [2020-10-11 18:28:30,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 941 transitions. [2020-10-11 18:28:30,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:30,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 941 transitions. [2020-10-11 18:28:30,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 17 states. [2020-10-11 18:28:30,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 17 states. [2020-10-11 18:28:30,409 INFO L81 ComplementDD]: Finished complementDD. Result 17 states. [2020-10-11 18:28:30,409 INFO L185 Difference]: Start difference. First operand has 118 places, 95 transitions, 543 flow. Second operand 16 states and 941 transitions. [2020-10-11 18:28:30,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 126 transitions, 963 flow [2020-10-11 18:28:30,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 126 transitions, 911 flow, removed 17 selfloop flow, removed 9 redundant places. [2020-10-11 18:28:30,417 INFO L241 Difference]: Finished difference. Result has 127 places, 98 transitions, 611 flow [2020-10-11 18:28:30,418 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=501, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=611, PETRI_PLACES=127, PETRI_TRANSITIONS=98} [2020-10-11 18:28:30,418 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 44 predicate places. [2020-10-11 18:28:30,418 INFO L481 AbstractCegarLoop]: Abstraction has has 127 places, 98 transitions, 611 flow [2020-10-11 18:28:30,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-11 18:28:30,418 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:30,419 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] [2020-10-11 18:28:30,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-11 18:28:30,419 INFO L429 AbstractCegarLoop]: === Iteration 12 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:30,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:30,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1053572699, now seen corresponding path program 5 times [2020-10-11 18:28:30,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:30,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631320715] [2020-10-11 18:28:30,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:30,716 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 18:28:30,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631320715] [2020-10-11 18:28:30,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:30,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-11 18:28:30,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649902353] [2020-10-11 18:28:30,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-11 18:28:30,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:30,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-11 18:28:30,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-11 18:28:31,921 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 80 [2020-10-11 18:28:31,922 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 98 transitions, 611 flow. Second operand 9 states. [2020-10-11 18:28:31,922 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:31,922 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 80 [2020-10-11 18:28:31,922 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:32,317 INFO L129 PetriNetUnfolder]: 81/361 cut-off events. [2020-10-11 18:28:32,318 INFO L130 PetriNetUnfolder]: For 2723/2857 co-relation queries the response was YES. [2020-10-11 18:28:32,320 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1608 conditions, 361 events. 81/361 cut-off events. For 2723/2857 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1991 event pairs, 17 based on Foata normal form. 10/363 useless extension candidates. Maximal degree in co-relation 1549. Up to 98 conditions per place. [2020-10-11 18:28:32,322 INFO L132 encePairwiseOnDemand]: 68/80 looper letters, 30 selfloop transitions, 19 changer transitions 21/124 dead transitions. [2020-10-11 18:28:32,322 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 124 transitions, 1071 flow [2020-10-11 18:28:32,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-11 18:28:32,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-11 18:28:32,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 686 transitions. [2020-10-11 18:28:32,325 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7795454545454545 [2020-10-11 18:28:32,325 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 686 transitions. [2020-10-11 18:28:32,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 686 transitions. [2020-10-11 18:28:32,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:32,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 686 transitions. [2020-10-11 18:28:32,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 12 states. [2020-10-11 18:28:32,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 12 states. [2020-10-11 18:28:32,329 INFO L81 ComplementDD]: Finished complementDD. Result 12 states. [2020-10-11 18:28:32,329 INFO L185 Difference]: Start difference. First operand has 127 places, 98 transitions, 611 flow. Second operand 11 states and 686 transitions. [2020-10-11 18:28:32,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 124 transitions, 1071 flow [2020-10-11 18:28:32,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 124 transitions, 1023 flow, removed 11 selfloop flow, removed 10 redundant places. [2020-10-11 18:28:32,340 INFO L241 Difference]: Finished difference. Result has 128 places, 102 transitions, 703 flow [2020-10-11 18:28:32,341 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=703, PETRI_PLACES=128, PETRI_TRANSITIONS=102} [2020-10-11 18:28:32,341 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 45 predicate places. [2020-10-11 18:28:32,341 INFO L481 AbstractCegarLoop]: Abstraction has has 128 places, 102 transitions, 703 flow [2020-10-11 18:28:32,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-11 18:28:32,341 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:32,341 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] [2020-10-11 18:28:32,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-11 18:28:32,342 INFO L429 AbstractCegarLoop]: === Iteration 13 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:32,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:32,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1213277559, now seen corresponding path program 1 times [2020-10-11 18:28:32,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:32,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269246927] [2020-10-11 18:28:32,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:32,801 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 27 [2020-10-11 18:28:33,053 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 18:28:33,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269246927] [2020-10-11 18:28:33,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:33,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-11 18:28:33,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876926035] [2020-10-11 18:28:33,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-11 18:28:33,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:33,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-11 18:28:33,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2020-10-11 18:28:37,839 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 80 [2020-10-11 18:28:37,840 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 102 transitions, 703 flow. Second operand 16 states. [2020-10-11 18:28:37,840 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:37,840 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 80 [2020-10-11 18:28:37,840 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:38,309 INFO L129 PetriNetUnfolder]: 81/370 cut-off events. [2020-10-11 18:28:38,309 INFO L130 PetriNetUnfolder]: For 3874/4503 co-relation queries the response was YES. [2020-10-11 18:28:38,312 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1925 conditions, 370 events. 81/370 cut-off events. For 3874/4503 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2190 event pairs, 13 based on Foata normal form. 35/398 useless extension candidates. Maximal degree in co-relation 1851. Up to 103 conditions per place. [2020-10-11 18:28:38,314 INFO L132 encePairwiseOnDemand]: 68/80 looper letters, 27 selfloop transitions, 6 changer transitions 47/123 dead transitions. [2020-10-11 18:28:38,314 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 123 transitions, 1233 flow [2020-10-11 18:28:38,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-11 18:28:38,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-11 18:28:38,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 752 transitions. [2020-10-11 18:28:38,318 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7230769230769231 [2020-10-11 18:28:38,318 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 752 transitions. [2020-10-11 18:28:38,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 752 transitions. [2020-10-11 18:28:38,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:38,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 752 transitions. [2020-10-11 18:28:38,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-10-11 18:28:38,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 14 states. [2020-10-11 18:28:38,322 INFO L81 ComplementDD]: Finished complementDD. Result 14 states. [2020-10-11 18:28:38,322 INFO L185 Difference]: Start difference. First operand has 128 places, 102 transitions, 703 flow. Second operand 13 states and 752 transitions. [2020-10-11 18:28:38,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 123 transitions, 1233 flow [2020-10-11 18:28:38,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 123 transitions, 1074 flow, removed 72 selfloop flow, removed 9 redundant places. [2020-10-11 18:28:38,336 INFO L241 Difference]: Finished difference. Result has 129 places, 75 transitions, 367 flow [2020-10-11 18:28:38,336 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=367, PETRI_PLACES=129, PETRI_TRANSITIONS=75} [2020-10-11 18:28:38,336 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 46 predicate places. [2020-10-11 18:28:38,337 INFO L481 AbstractCegarLoop]: Abstraction has has 129 places, 75 transitions, 367 flow [2020-10-11 18:28:38,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-11 18:28:38,338 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:38,338 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] [2020-10-11 18:28:38,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-11 18:28:38,338 INFO L429 AbstractCegarLoop]: === Iteration 14 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:38,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:38,339 INFO L82 PathProgramCache]: Analyzing trace with hash -143709949, now seen corresponding path program 1 times [2020-10-11 18:28:38,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:38,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972864904] [2020-10-11 18:28:38,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:38,934 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 18:28:38,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972864904] [2020-10-11 18:28:38,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:38,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-11 18:28:38,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44024024] [2020-10-11 18:28:38,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-11 18:28:38,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:38,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-11 18:28:38,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-11 18:28:41,550 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 80 [2020-10-11 18:28:41,551 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 75 transitions, 367 flow. Second operand 13 states. [2020-10-11 18:28:41,551 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:41,551 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 80 [2020-10-11 18:28:41,551 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:42,164 INFO L129 PetriNetUnfolder]: 37/199 cut-off events. [2020-10-11 18:28:42,165 INFO L130 PetriNetUnfolder]: For 1152/1177 co-relation queries the response was YES. [2020-10-11 18:28:42,168 INFO L80 FinitePrefix]: Finished finitePrefix Result has 859 conditions, 199 events. 37/199 cut-off events. For 1152/1177 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 820 event pairs, 0 based on Foata normal form. 14/213 useless extension candidates. Maximal degree in co-relation 832. Up to 51 conditions per place. [2020-10-11 18:28:42,169 INFO L132 encePairwiseOnDemand]: 65/80 looper letters, 21 selfloop transitions, 12 changer transitions 17/95 dead transitions. [2020-10-11 18:28:42,169 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 95 transitions, 730 flow [2020-10-11 18:28:42,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-11 18:28:42,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-11 18:28:42,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 713 transitions. [2020-10-11 18:28:42,173 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7427083333333333 [2020-10-11 18:28:42,173 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 713 transitions. [2020-10-11 18:28:42,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 713 transitions. [2020-10-11 18:28:42,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:42,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 713 transitions. [2020-10-11 18:28:42,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-10-11 18:28:42,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-10-11 18:28:42,177 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-10-11 18:28:42,177 INFO L185 Difference]: Start difference. First operand has 129 places, 75 transitions, 367 flow. Second operand 12 states and 713 transitions. [2020-10-11 18:28:42,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 95 transitions, 730 flow [2020-10-11 18:28:42,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 95 transitions, 645 flow, removed 32 selfloop flow, removed 20 redundant places. [2020-10-11 18:28:42,183 INFO L241 Difference]: Finished difference. Result has 110 places, 75 transitions, 363 flow [2020-10-11 18:28:42,184 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=363, PETRI_PLACES=110, PETRI_TRANSITIONS=75} [2020-10-11 18:28:42,184 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 27 predicate places. [2020-10-11 18:28:42,184 INFO L481 AbstractCegarLoop]: Abstraction has has 110 places, 75 transitions, 363 flow [2020-10-11 18:28:42,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-11 18:28:42,184 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:28:42,184 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] [2020-10-11 18:28:42,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-11 18:28:42,185 INFO L429 AbstractCegarLoop]: === Iteration 15 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:28:42,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:28:42,185 INFO L82 PathProgramCache]: Analyzing trace with hash -2114849511, now seen corresponding path program 2 times [2020-10-11 18:28:42,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:28:42,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759432782] [2020-10-11 18:28:42,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:28:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:28:42,597 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 18:28:42,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759432782] [2020-10-11 18:28:42,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:28:42,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-11 18:28:42,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401222256] [2020-10-11 18:28:42,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-11 18:28:42,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:28:42,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-11 18:28:42,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-11 18:28:45,885 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 80 [2020-10-11 18:28:45,886 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 75 transitions, 363 flow. Second operand 13 states. [2020-10-11 18:28:45,886 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:28:45,886 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 80 [2020-10-11 18:28:45,886 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:28:46,322 INFO L129 PetriNetUnfolder]: 21/141 cut-off events. [2020-10-11 18:28:46,322 INFO L130 PetriNetUnfolder]: For 494/519 co-relation queries the response was YES. [2020-10-11 18:28:46,323 INFO L80 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 141 events. 21/141 cut-off events. For 494/519 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 458 event pairs, 2 based on Foata normal form. 10/150 useless extension candidates. Maximal degree in co-relation 525. Up to 35 conditions per place. [2020-10-11 18:28:46,324 INFO L132 encePairwiseOnDemand]: 70/80 looper letters, 0 selfloop transitions, 0 changer transitions 78/78 dead transitions. [2020-10-11 18:28:46,324 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 78 transitions, 502 flow [2020-10-11 18:28:46,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-11 18:28:46,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-11 18:28:46,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 655 transitions. [2020-10-11 18:28:46,329 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.7443181818181818 [2020-10-11 18:28:46,329 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 655 transitions. [2020-10-11 18:28:46,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 655 transitions. [2020-10-11 18:28:46,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:28:46,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 655 transitions. [2020-10-11 18:28:46,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 12 states. [2020-10-11 18:28:46,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 12 states. [2020-10-11 18:28:46,333 INFO L81 ComplementDD]: Finished complementDD. Result 12 states. [2020-10-11 18:28:46,333 INFO L185 Difference]: Start difference. First operand has 110 places, 75 transitions, 363 flow. Second operand 11 states and 655 transitions. [2020-10-11 18:28:46,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 78 transitions, 502 flow [2020-10-11 18:28:46,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 78 transitions, 439 flow, removed 21 selfloop flow, removed 10 redundant places. [2020-10-11 18:28:46,337 INFO L241 Difference]: Finished difference. Result has 104 places, 0 transitions, 0 flow [2020-10-11 18:28:46,337 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=104, PETRI_TRANSITIONS=0} [2020-10-11 18:28:46,338 INFO L341 CegarLoopForPetriNet]: 83 programPoint places, 21 predicate places. [2020-10-11 18:28:46,338 INFO L481 AbstractCegarLoop]: Abstraction has has 104 places, 0 transitions, 0 flow [2020-10-11 18:28:46,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-11 18:28:46,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-11 18:28:46,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 06:28:46 BasicIcfg [2020-10-11 18:28:46,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 18:28:46,351 INFO L168 Benchmark]: Toolchain (without parser) took 42735.41 ms. Allocated memory was 250.6 MB in the beginning and 865.1 MB in the end (delta: 614.5 MB). Free memory was 205.7 MB in the beginning and 668.4 MB in the end (delta: -462.7 MB). Peak memory consumption was 151.7 MB. Max. memory is 14.2 GB. [2020-10-11 18:28:46,351 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 250.6 MB. Free memory is still 227.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 18:28:46,352 INFO L168 Benchmark]: CACSL2BoogieTranslator took 840.66 ms. Allocated memory was 250.6 MB in the beginning and 312.0 MB in the end (delta: 61.3 MB). Free memory was 205.7 MB in the beginning and 260.2 MB in the end (delta: -54.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 14.2 GB. [2020-10-11 18:28:46,353 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.46 ms. Allocated memory is still 312.0 MB. Free memory was 260.2 MB in the beginning and 255.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 14.2 GB. [2020-10-11 18:28:46,353 INFO L168 Benchmark]: Boogie Preprocessor took 50.34 ms. Allocated memory is still 312.0 MB. Free memory was 255.2 MB in the beginning and 252.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:28:46,354 INFO L168 Benchmark]: RCFGBuilder took 3707.18 ms. Allocated memory was 312.0 MB in the beginning and 370.7 MB in the end (delta: 58.7 MB). Free memory was 252.7 MB in the beginning and 168.8 MB in the end (delta: 83.8 MB). Peak memory consumption was 143.7 MB. Max. memory is 14.2 GB. [2020-10-11 18:28:46,355 INFO L168 Benchmark]: TraceAbstraction took 38047.77 ms. Allocated memory was 370.7 MB in the beginning and 865.1 MB in the end (delta: 494.4 MB). Free memory was 165.2 MB in the beginning and 668.4 MB in the end (delta: -503.2 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 18:28:46,358 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 250.6 MB. Free memory is still 227.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 840.66 ms. Allocated memory was 250.6 MB in the beginning and 312.0 MB in the end (delta: 61.3 MB). Free memory was 205.7 MB in the beginning and 260.2 MB in the end (delta: -54.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 83.46 ms. Allocated memory is still 312.0 MB. Free memory was 260.2 MB in the beginning and 255.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 50.34 ms. Allocated memory is still 312.0 MB. Free memory was 255.2 MB in the beginning and 252.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 3707.18 ms. Allocated memory was 312.0 MB in the beginning and 370.7 MB in the end (delta: 58.7 MB). Free memory was 252.7 MB in the beginning and 168.8 MB in the end (delta: 83.8 MB). Peak memory consumption was 143.7 MB. Max. memory is 14.2 GB. * TraceAbstraction took 38047.77 ms. Allocated memory was 370.7 MB in the beginning and 865.1 MB in the end (delta: 494.4 MB). Free memory was 165.2 MB in the beginning and 668.4 MB in the end (delta: -503.2 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: 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 3 procedures, 79 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: 37.8s, OverallIterations: 15, TraceHistogramMax: 1, AutomataDifference: 31.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 782 SDtfs, 1147 SDslu, 4789 SDs, 0 SdLazy, 4817 SolverSat, 592 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 253 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=703occurred in iteration=12, 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: 0.0s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 829 NumberOfCodeBlocks, 829 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 814 ConstructedInterpolants, 0 QuantifiedInterpolants, 319628 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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...