/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/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe-SemanticLooper.epf -i ../../../trunk/examples/svcomp/pthread/queue_longer.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 03:10:05,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 03:10:05,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 03:10:05,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 03:10:05,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 03:10:05,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 03:10:05,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 03:10:05,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 03:10:05,273 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 03:10:05,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 03:10:05,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 03:10:05,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 03:10:05,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 03:10:05,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 03:10:05,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 03:10:05,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 03:10:05,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 03:10:05,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 03:10:05,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 03:10:05,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 03:10:05,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 03:10:05,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 03:10:05,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 03:10:05,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 03:10:05,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 03:10:05,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 03:10:05,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 03:10:05,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 03:10:05,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 03:10:05,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 03:10:05,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 03:10:05,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 03:10:05,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 03:10:05,309 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 03:10:05,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 03:10:05,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 03:10:05,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 03:10:05,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 03:10:05,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 03:10:05,313 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 03:10:05,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 03:10:05,314 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe-SemanticLooper.epf [2020-10-16 03:10:05,337 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 03:10:05,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 03:10:05,338 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 03:10:05,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 03:10:05,339 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 03:10:05,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 03:10:05,339 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 03:10:05,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 03:10:05,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 03:10:05,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 03:10:05,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 03:10:05,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 03:10:05,340 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 03:10:05,341 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 03:10:05,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 03:10:05,341 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 03:10:05,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 03:10:05,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 03:10:05,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 03:10:05,342 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 03:10:05,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 03:10:05,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 03:10:05,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 03:10:05,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 03:10:05,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 03:10:05,345 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 03:10:05,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 03:10:05,346 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 03:10:05,346 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 03:10:05,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 03:10:05,639 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 03:10:05,642 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 03:10:05,644 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 03:10:05,644 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 03:10:05,645 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/queue_longer.i [2020-10-16 03:10:05,740 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c9895e39/9a1fd6f398774ec2b6e1b95c1d7fedb2/FLAGf6781e2a9 [2020-10-16 03:10:06,417 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 03:10:06,417 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/queue_longer.i [2020-10-16 03:10:06,438 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c9895e39/9a1fd6f398774ec2b6e1b95c1d7fedb2/FLAGf6781e2a9 [2020-10-16 03:10:06,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c9895e39/9a1fd6f398774ec2b6e1b95c1d7fedb2 [2020-10-16 03:10:06,617 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 03:10:06,620 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 03:10:06,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 03:10:06,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 03:10:06,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 03:10:06,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:10:06" (1/1) ... [2020-10-16 03:10:06,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27bad0cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:10:06, skipping insertion in model container [2020-10-16 03:10:06,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:10:06" (1/1) ... [2020-10-16 03:10:06,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 03:10:06,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 03:10:07,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 03:10:07,282 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 03:10:07,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 03:10:07,492 INFO L208 MainTranslator]: Completed translation [2020-10-16 03:10:07,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:10:07 WrapperNode [2020-10-16 03:10:07,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 03:10:07,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 03:10:07,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 03:10:07,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 03:10:07,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:10:07" (1/1) ... [2020-10-16 03:10:07,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:10:07" (1/1) ... [2020-10-16 03:10:07,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 03:10:07,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 03:10:07,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 03:10:07,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 03:10:07,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:10:07" (1/1) ... [2020-10-16 03:10:07,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:10:07" (1/1) ... [2020-10-16 03:10:07,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:10:07" (1/1) ... [2020-10-16 03:10:07,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:10:07" (1/1) ... [2020-10-16 03:10:07,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:10:07" (1/1) ... [2020-10-16 03:10:07,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:10:07" (1/1) ... [2020-10-16 03:10:07,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:10:07" (1/1) ... [2020-10-16 03:10:07,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 03:10:07,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 03:10:07,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 03:10:07,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 03:10:07,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:10:07" (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 [2020-10-16 03:10:07,709 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-16 03:10:07,710 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-16 03:10:07,710 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-16 03:10:07,710 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-16 03:10:07,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 03:10:07,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 03:10:07,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 03:10:07,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 03:10:07,711 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 03:10:07,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 03:10:07,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 03:10:07,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 03:10:07,715 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 03:10:08,349 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 03:10:08,350 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-16 03:10:08,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:10:08 BoogieIcfgContainer [2020-10-16 03:10:08,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 03:10:08,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 03:10:08,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 03:10:08,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 03:10:08,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:10:06" (1/3) ... [2020-10-16 03:10:08,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ca1611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:10:08, skipping insertion in model container [2020-10-16 03:10:08,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:10:07" (2/3) ... [2020-10-16 03:10:08,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ca1611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:10:08, skipping insertion in model container [2020-10-16 03:10:08,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:10:08" (3/3) ... [2020-10-16 03:10:08,362 INFO L111 eAbstractionObserver]: Analyzing ICFG queue_longer.i [2020-10-16 03:10:08,376 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 03:10:08,386 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-16 03:10:08,387 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 03:10:08,434 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,435 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,435 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,435 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,436 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,436 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,436 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,437 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,437 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,437 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,437 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,438 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,438 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,438 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,438 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,439 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,439 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,439 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,440 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,440 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,440 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,440 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,440 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,441 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,441 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,441 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,441 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,442 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,442 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,442 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,442 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,443 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,443 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,443 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,443 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,444 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,444 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,444 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,444 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,444 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,445 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,445 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,446 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,446 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,446 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,446 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,447 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,447 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,447 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,447 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,448 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,448 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,448 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,448 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,449 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,449 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,449 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,449 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,450 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,451 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,451 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,451 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,451 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,452 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,452 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,452 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,452 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,453 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,453 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,453 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,453 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,454 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,454 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,454 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,454 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,455 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,455 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,455 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,455 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,455 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,456 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,456 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,456 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,456 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,457 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,457 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,457 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,457 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,458 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,458 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,458 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,458 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,459 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,459 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,459 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,459 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,459 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,460 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,460 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,460 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,460 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,461 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,461 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,461 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,461 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,462 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,462 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,462 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,462 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,463 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,463 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,463 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,463 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,464 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,464 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,464 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,465 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,465 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,465 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,465 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,465 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,466 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,466 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,466 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,466 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,467 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,467 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,467 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,467 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,468 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,468 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,468 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,468 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,468 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,469 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,469 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,469 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,469 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,470 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,470 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,470 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,470 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,470 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,471 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,471 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,471 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,471 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,471 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,472 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,472 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,472 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,472 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,473 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,473 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,473 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,473 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,473 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,474 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,474 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,474 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,474 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,474 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,475 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,475 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,475 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,475 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,476 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,476 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,476 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,476 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,477 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,477 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,477 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,477 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,478 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,478 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,478 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,478 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,478 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,479 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,479 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,479 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,479 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,480 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,480 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,480 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,480 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,480 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,482 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,482 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,482 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,483 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,483 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,501 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,502 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,502 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,502 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,502 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,503 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,503 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,503 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,503 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,504 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,504 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,504 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,504 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,504 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,505 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,505 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,505 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,505 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,505 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,505 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,506 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,506 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,506 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,506 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,506 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,506 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,507 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,507 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,507 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,507 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,507 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,507 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,508 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,508 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,508 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,508 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,508 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,509 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,509 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,509 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,509 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,509 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,509 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,510 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,510 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,510 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,510 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,510 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,511 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,511 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,511 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,511 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,511 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,512 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,512 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,512 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,512 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,512 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,513 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,513 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,513 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,513 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,513 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,514 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,514 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,514 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,514 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,514 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,514 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,515 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,515 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,515 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,515 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,515 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,516 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,516 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,516 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,516 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,516 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,516 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,517 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,517 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,517 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,517 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,517 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,521 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,521 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,522 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,522 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,522 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,522 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~value~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,522 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,523 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,523 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,523 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,523 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,523 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,524 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,524 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,524 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_enqueue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,524 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret52| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,524 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,525 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,525 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret53| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,525 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,525 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet51| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,525 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~post42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,525 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret57| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,526 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,526 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,526 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,526 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,526 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post54| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,526 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_empty_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,527 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,527 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#t~mem37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,527 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_enqueue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,527 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet56| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,527 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_empty_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,528 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet55| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,534 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,534 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,535 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,535 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,535 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,535 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,535 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,536 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~q.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,536 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,536 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet59| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,536 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,536 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,537 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret60| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,537 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,537 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#t~post46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,537 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post58| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,537 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,538 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,538 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,538 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~mem61| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,538 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,538 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dequeue_#in~q.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 03:10:08,565 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-16 03:10:08,588 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 03:10:08,588 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 03:10:08,589 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 03:10:08,589 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 03:10:08,589 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 03:10:08,589 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 03:10:08,589 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 03:10:08,589 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 03:10:08,608 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 234 places, 244 transitions, 510 flow [2020-10-16 03:10:08,707 INFO L129 PetriNetUnfolder]: 16/244 cut-off events. [2020-10-16 03:10:08,707 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 03:10:08,723 INFO L80 FinitePrefix]: Finished finitePrefix Result has 255 conditions, 244 events. 16/244 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 381 event pairs, 0 based on Foata normal form. 0/226 useless extension candidates. Maximal degree in co-relation 179. Up to 3 conditions per place. [2020-10-16 03:10:08,724 INFO L82 GeneralOperation]: Start removeDead. Operand has 234 places, 244 transitions, 510 flow [2020-10-16 03:10:08,734 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 223 places, 232 transitions, 476 flow [2020-10-16 03:10:08,737 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 03:10:08,740 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 223 places, 232 transitions, 476 flow [2020-10-16 03:10:08,743 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 223 places, 232 transitions, 476 flow [2020-10-16 03:10:08,744 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 223 places, 232 transitions, 476 flow [2020-10-16 03:10:08,808 INFO L129 PetriNetUnfolder]: 15/234 cut-off events. [2020-10-16 03:10:08,809 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 03:10:08,815 INFO L80 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 234 events. 15/234 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 319 event pairs, 0 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 179. Up to 2 conditions per place. [2020-10-16 03:10:08,831 INFO L117 LiptonReduction]: Number of co-enabled transitions 14896 [2020-10-16 03:10:12,716 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-10-16 03:10:14,290 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 107 [2020-10-16 03:10:14,566 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-16 03:10:15,128 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-16 03:10:15,559 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-16 03:10:17,059 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 157 DAG size of output: 146 [2020-10-16 03:10:17,827 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-16 03:10:18,257 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-16 03:10:18,675 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2020-10-16 03:10:18,701 INFO L132 LiptonReduction]: Checked pairs total: 36538 [2020-10-16 03:10:18,701 INFO L134 LiptonReduction]: Total number of compositions: 204 [2020-10-16 03:10:18,704 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9969 [2020-10-16 03:10:18,709 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2020-10-16 03:10:18,709 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 03:10:18,710 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:10:18,711 INFO L255 CegarLoopForPetriNet]: trace histogram [1] [2020-10-16 03:10:18,711 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:10:18,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:10:18,718 INFO L82 PathProgramCache]: Analyzing trace with hash 958, now seen corresponding path program 1 times [2020-10-16 03:10:18,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:10:18,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536471313] [2020-10-16 03:10:18,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:10:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:10:18,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:10:18,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536471313] [2020-10-16 03:10:18,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:10:18,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-10-16 03:10:18,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336734787] [2020-10-16 03:10:18,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 03:10:18,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:10:18,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 03:10:18,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 03:10:18,918 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 425 out of 448 [2020-10-16 03:10:18,924 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 65 transitions, 142 flow. Second operand 2 states. [2020-10-16 03:10:18,924 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:10:18,924 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 425 of 448 [2020-10-16 03:10:18,926 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:10:18,943 INFO L129 PetriNetUnfolder]: 8/64 cut-off events. [2020-10-16 03:10:18,944 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 03:10:18,944 INFO L80 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 64 events. 8/64 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 121 event pairs, 0 based on Foata normal form. 3/57 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2020-10-16 03:10:18,946 INFO L132 encePairwiseOnDemand]: 445/448 looper letters, 0 selfloop transitions, 0 changer transitions 0/62 dead transitions. [2020-10-16 03:10:18,946 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 62 transitions, 136 flow [2020-10-16 03:10:18,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 03:10:18,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-16 03:10:18,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 853 transitions. [2020-10-16 03:10:18,969 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.9520089285714286 [2020-10-16 03:10:18,970 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 853 transitions. [2020-10-16 03:10:18,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 853 transitions. [2020-10-16 03:10:18,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:10:18,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 853 transitions. [2020-10-16 03:10:18,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-16 03:10:18,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-16 03:10:18,993 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-16 03:10:18,996 INFO L185 Difference]: Start difference. First operand has 61 places, 65 transitions, 142 flow. Second operand 2 states and 853 transitions. [2020-10-16 03:10:18,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 62 transitions, 136 flow [2020-10-16 03:10:19,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 62 transitions, 128 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-16 03:10:19,002 INFO L241 Difference]: Finished difference. Result has 57 places, 62 transitions, 128 flow [2020-10-16 03:10:19,005 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=128, PETRI_PLACES=57, PETRI_TRANSITIONS=62} [2020-10-16 03:10:19,006 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2020-10-16 03:10:19,006 INFO L481 AbstractCegarLoop]: Abstraction has has 57 places, 62 transitions, 128 flow [2020-10-16 03:10:19,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 03:10:19,006 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:10:19,006 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:10:19,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 03:10:19,007 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:10:19,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:10:19,007 INFO L82 PathProgramCache]: Analyzing trace with hash 100085460, now seen corresponding path program 1 times [2020-10-16 03:10:19,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:10:19,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047869382] [2020-10-16 03:10:19,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:10:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:10:19,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:10:19,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047869382] [2020-10-16 03:10:19,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:10:19,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:10:19,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4587424] [2020-10-16 03:10:19,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 03:10:19,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:10:19,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 03:10:19,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 03:10:19,171 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 448 [2020-10-16 03:10:19,172 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 62 transitions, 128 flow. Second operand 3 states. [2020-10-16 03:10:19,173 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:10:19,173 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 448 [2020-10-16 03:10:19,173 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:10:19,198 INFO L129 PetriNetUnfolder]: 7/63 cut-off events. [2020-10-16 03:10:19,198 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 03:10:19,199 INFO L80 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 63 events. 7/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 118 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 69. Up to 3 conditions per place. [2020-10-16 03:10:19,199 INFO L132 encePairwiseOnDemand]: 444/448 looper letters, 1 selfloop transitions, 3 changer transitions 0/61 dead transitions. [2020-10-16 03:10:19,200 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 61 transitions, 134 flow [2020-10-16 03:10:19,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 03:10:19,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 03:10:19,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1238 transitions. [2020-10-16 03:10:19,210 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.9211309523809523 [2020-10-16 03:10:19,210 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1238 transitions. [2020-10-16 03:10:19,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1238 transitions. [2020-10-16 03:10:19,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:10:19,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1238 transitions. [2020-10-16 03:10:19,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 03:10:19,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 03:10:19,218 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 03:10:19,219 INFO L185 Difference]: Start difference. First operand has 57 places, 62 transitions, 128 flow. Second operand 3 states and 1238 transitions. [2020-10-16 03:10:19,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 61 transitions, 134 flow [2020-10-16 03:10:19,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 61 transitions, 134 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 03:10:19,222 INFO L241 Difference]: Finished difference. Result has 59 places, 61 transitions, 132 flow [2020-10-16 03:10:19,222 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=132, PETRI_PLACES=59, PETRI_TRANSITIONS=61} [2020-10-16 03:10:19,223 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, -2 predicate places. [2020-10-16 03:10:19,223 INFO L481 AbstractCegarLoop]: Abstraction has has 59 places, 61 transitions, 132 flow [2020-10-16 03:10:19,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 03:10:19,223 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:10:19,223 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:10:19,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 03:10:19,224 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:10:19,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:10:19,224 INFO L82 PathProgramCache]: Analyzing trace with hash -701533541, now seen corresponding path program 1 times [2020-10-16 03:10:19,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:10:19,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301272569] [2020-10-16 03:10:19,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:10:19,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:10:19,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:10:19,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301272569] [2020-10-16 03:10:19,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:10:19,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 03:10:19,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894729782] [2020-10-16 03:10:19,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 03:10:19,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:10:19,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 03:10:19,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 03:10:19,323 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 404 out of 448 [2020-10-16 03:10:19,324 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 61 transitions, 132 flow. Second operand 3 states. [2020-10-16 03:10:19,324 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:10:19,324 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 404 of 448 [2020-10-16 03:10:19,325 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:10:19,376 INFO L129 PetriNetUnfolder]: 19/139 cut-off events. [2020-10-16 03:10:19,377 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 03:10:19,377 INFO L80 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 139 events. 19/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 284 event pairs, 0 based on Foata normal form. 2/121 useless extension candidates. Maximal degree in co-relation 159. Up to 12 conditions per place. [2020-10-16 03:10:19,379 INFO L132 encePairwiseOnDemand]: 444/448 looper letters, 4 selfloop transitions, 3 changer transitions 0/63 dead transitions. [2020-10-16 03:10:19,379 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 63 transitions, 150 flow [2020-10-16 03:10:19,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 03:10:19,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 03:10:19,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1220 transitions. [2020-10-16 03:10:19,384 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.9077380952380952 [2020-10-16 03:10:19,384 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1220 transitions. [2020-10-16 03:10:19,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1220 transitions. [2020-10-16 03:10:19,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:10:19,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1220 transitions. [2020-10-16 03:10:19,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 03:10:19,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 03:10:19,392 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 03:10:19,392 INFO L185 Difference]: Start difference. First operand has 59 places, 61 transitions, 132 flow. Second operand 3 states and 1220 transitions. [2020-10-16 03:10:19,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 63 transitions, 150 flow [2020-10-16 03:10:19,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 63 transitions, 144 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 03:10:19,396 INFO L241 Difference]: Finished difference. Result has 60 places, 62 transitions, 141 flow [2020-10-16 03:10:19,396 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=141, PETRI_PLACES=60, PETRI_TRANSITIONS=62} [2020-10-16 03:10:19,396 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, -1 predicate places. [2020-10-16 03:10:19,397 INFO L481 AbstractCegarLoop]: Abstraction has has 60 places, 62 transitions, 141 flow [2020-10-16 03:10:19,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 03:10:19,397 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:10:19,397 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:10:19,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 03:10:19,398 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:10:19,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:10:19,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1695525752, now seen corresponding path program 1 times [2020-10-16 03:10:19,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:10:19,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624258148] [2020-10-16 03:10:19,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:10:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:10:19,820 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 25 [2020-10-16 03:10:19,961 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 30 [2020-10-16 03:10:20,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:10:20,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624258148] [2020-10-16 03:10:20,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:10:20,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 03:10:20,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116938087] [2020-10-16 03:10:20,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 03:10:20,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:10:20,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 03:10:20,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-16 03:10:20,031 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 448 [2020-10-16 03:10:20,033 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 62 transitions, 141 flow. Second operand 6 states. [2020-10-16 03:10:20,033 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:10:20,033 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 448 [2020-10-16 03:10:20,033 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:10:20,257 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-10-16 03:10:20,474 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-10-16 03:10:21,324 INFO L129 PetriNetUnfolder]: 609/1260 cut-off events. [2020-10-16 03:10:21,328 INFO L130 PetriNetUnfolder]: For 69/69 co-relation queries the response was YES. [2020-10-16 03:10:21,332 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2380 conditions, 1260 events. 609/1260 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5775 event pairs, 429 based on Foata normal form. 0/1092 useless extension candidates. Maximal degree in co-relation 2375. Up to 979 conditions per place. [2020-10-16 03:10:21,347 INFO L132 encePairwiseOnDemand]: 441/448 looper letters, 45 selfloop transitions, 9 changer transitions 0/74 dead transitions. [2020-10-16 03:10:21,347 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 74 transitions, 273 flow [2020-10-16 03:10:21,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 03:10:21,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-16 03:10:21,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1609 transitions. [2020-10-16 03:10:21,355 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.5985863095238095 [2020-10-16 03:10:21,355 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1609 transitions. [2020-10-16 03:10:21,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1609 transitions. [2020-10-16 03:10:21,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:10:21,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1609 transitions. [2020-10-16 03:10:21,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-16 03:10:21,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-16 03:10:21,369 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-16 03:10:21,369 INFO L185 Difference]: Start difference. First operand has 60 places, 62 transitions, 141 flow. Second operand 6 states and 1609 transitions. [2020-10-16 03:10:21,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 74 transitions, 273 flow [2020-10-16 03:10:21,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 74 transitions, 270 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 03:10:21,378 INFO L241 Difference]: Finished difference. Result has 68 places, 70 transitions, 196 flow [2020-10-16 03:10:21,378 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=196, PETRI_PLACES=68, PETRI_TRANSITIONS=70} [2020-10-16 03:10:21,379 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 7 predicate places. [2020-10-16 03:10:21,379 INFO L481 AbstractCegarLoop]: Abstraction has has 68 places, 70 transitions, 196 flow [2020-10-16 03:10:21,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 03:10:21,379 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:10:21,380 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:10:21,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 03:10:21,380 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:10:21,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:10:21,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1794618206, now seen corresponding path program 1 times [2020-10-16 03:10:21,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:10:21,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197199648] [2020-10-16 03:10:21,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:10:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:10:21,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:10:21,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197199648] [2020-10-16 03:10:21,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:10:21,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 03:10:21,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814506904] [2020-10-16 03:10:21,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 03:10:21,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:10:21,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 03:10:21,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-16 03:10:21,573 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 448 [2020-10-16 03:10:21,576 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 70 transitions, 196 flow. Second operand 7 states. [2020-10-16 03:10:21,576 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:10:21,577 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 448 [2020-10-16 03:10:21,577 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:10:22,115 INFO L129 PetriNetUnfolder]: 698/1432 cut-off events. [2020-10-16 03:10:22,115 INFO L130 PetriNetUnfolder]: For 85/85 co-relation queries the response was YES. [2020-10-16 03:10:22,120 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2798 conditions, 1432 events. 698/1432 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 6898 event pairs, 153 based on Foata normal form. 4/1256 useless extension candidates. Maximal degree in co-relation 2789. Up to 836 conditions per place. [2020-10-16 03:10:22,129 INFO L132 encePairwiseOnDemand]: 432/448 looper letters, 65 selfloop transitions, 22 changer transitions 0/107 dead transitions. [2020-10-16 03:10:22,129 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 107 transitions, 459 flow [2020-10-16 03:10:22,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 03:10:22,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-16 03:10:22,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1840 transitions. [2020-10-16 03:10:22,135 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.5867346938775511 [2020-10-16 03:10:22,136 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1840 transitions. [2020-10-16 03:10:22,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1840 transitions. [2020-10-16 03:10:22,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:10:22,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1840 transitions. [2020-10-16 03:10:22,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-16 03:10:22,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-16 03:10:22,146 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-16 03:10:22,147 INFO L185 Difference]: Start difference. First operand has 68 places, 70 transitions, 196 flow. Second operand 7 states and 1840 transitions. [2020-10-16 03:10:22,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 107 transitions, 459 flow [2020-10-16 03:10:22,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 107 transitions, 459 flow, removed 0 selfloop flow, removed 0 redundant places. [2020-10-16 03:10:22,151 INFO L241 Difference]: Finished difference. Result has 77 places, 79 transitions, 312 flow [2020-10-16 03:10:22,151 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=312, PETRI_PLACES=77, PETRI_TRANSITIONS=79} [2020-10-16 03:10:22,152 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 16 predicate places. [2020-10-16 03:10:22,152 INFO L481 AbstractCegarLoop]: Abstraction has has 77 places, 79 transitions, 312 flow [2020-10-16 03:10:22,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 03:10:22,152 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:10:22,152 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:10:22,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 03:10:22,153 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:10:22,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:10:22,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1851363526, now seen corresponding path program 2 times [2020-10-16 03:10:22,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:10:22,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630428877] [2020-10-16 03:10:22,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:10:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:10:22,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:10:22,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630428877] [2020-10-16 03:10:22,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:10:22,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-16 03:10:22,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207957749] [2020-10-16 03:10:22,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 03:10:22,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:10:22,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 03:10:22,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-16 03:10:22,305 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 448 [2020-10-16 03:10:22,306 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 79 transitions, 312 flow. Second operand 7 states. [2020-10-16 03:10:22,307 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:10:22,307 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 448 [2020-10-16 03:10:22,307 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:10:22,754 INFO L129 PetriNetUnfolder]: 714/1526 cut-off events. [2020-10-16 03:10:22,754 INFO L130 PetriNetUnfolder]: For 493/493 co-relation queries the response was YES. [2020-10-16 03:10:22,760 INFO L80 FinitePrefix]: Finished finitePrefix Result has 3348 conditions, 1526 events. 714/1526 cut-off events. For 493/493 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 7549 event pairs, 219 based on Foata normal form. 4/1361 useless extension candidates. Maximal degree in co-relation 3336. Up to 1059 conditions per place. [2020-10-16 03:10:22,769 INFO L132 encePairwiseOnDemand]: 441/448 looper letters, 60 selfloop transitions, 13 changer transitions 0/93 dead transitions. [2020-10-16 03:10:22,769 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 93 transitions, 486 flow [2020-10-16 03:10:22,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 03:10:22,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-16 03:10:22,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1568 transitions. [2020-10-16 03:10:22,774 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2020-10-16 03:10:22,775 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1568 transitions. [2020-10-16 03:10:22,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1568 transitions. [2020-10-16 03:10:22,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:10:22,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1568 transitions. [2020-10-16 03:10:22,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-16 03:10:22,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-16 03:10:22,784 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-16 03:10:22,784 INFO L185 Difference]: Start difference. First operand has 77 places, 79 transitions, 312 flow. Second operand 6 states and 1568 transitions. [2020-10-16 03:10:22,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 93 transitions, 486 flow [2020-10-16 03:10:22,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 93 transitions, 478 flow, removed 4 selfloop flow, removed 0 redundant places. [2020-10-16 03:10:22,790 INFO L241 Difference]: Finished difference. Result has 82 places, 77 transitions, 329 flow [2020-10-16 03:10:22,791 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=329, PETRI_PLACES=82, PETRI_TRANSITIONS=77} [2020-10-16 03:10:22,791 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 21 predicate places. [2020-10-16 03:10:22,791 INFO L481 AbstractCegarLoop]: Abstraction has has 82 places, 77 transitions, 329 flow [2020-10-16 03:10:22,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 03:10:22,791 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:10:22,792 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:10:22,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 03:10:22,792 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:10:22,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:10:22,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1689185982, now seen corresponding path program 1 times [2020-10-16 03:10:22,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:10:22,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999789440] [2020-10-16 03:10:22,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:10:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:10:23,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:10:23,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999789440] [2020-10-16 03:10:23,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:10:23,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-16 03:10:23,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692711513] [2020-10-16 03:10:23,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-16 03:10:23,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:10:23,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-16 03:10:23,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-16 03:10:23,089 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 448 [2020-10-16 03:10:23,090 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 77 transitions, 329 flow. Second operand 10 states. [2020-10-16 03:10:23,090 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:10:23,090 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 448 [2020-10-16 03:10:23,090 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:10:23,811 INFO L129 PetriNetUnfolder]: 712/1518 cut-off events. [2020-10-16 03:10:23,812 INFO L130 PetriNetUnfolder]: For 570/570 co-relation queries the response was YES. [2020-10-16 03:10:23,816 INFO L80 FinitePrefix]: Finished finitePrefix Result has 3374 conditions, 1518 events. 712/1518 cut-off events. For 570/570 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 7456 event pairs, 471 based on Foata normal form. 0/1346 useless extension candidates. Maximal degree in co-relation 3360. Up to 1149 conditions per place. [2020-10-16 03:10:23,824 INFO L132 encePairwiseOnDemand]: 436/448 looper letters, 52 selfloop transitions, 18 changer transitions 0/90 dead transitions. [2020-10-16 03:10:23,825 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 90 transitions, 509 flow [2020-10-16 03:10:23,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 03:10:23,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-16 03:10:23,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2502 transitions. [2020-10-16 03:10:23,832 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.5584821428571428 [2020-10-16 03:10:23,833 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2502 transitions. [2020-10-16 03:10:23,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2502 transitions. [2020-10-16 03:10:23,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:10:23,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2502 transitions. [2020-10-16 03:10:23,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-16 03:10:23,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-16 03:10:23,846 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-16 03:10:23,846 INFO L185 Difference]: Start difference. First operand has 82 places, 77 transitions, 329 flow. Second operand 10 states and 2502 transitions. [2020-10-16 03:10:23,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 90 transitions, 509 flow [2020-10-16 03:10:23,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 90 transitions, 487 flow, removed 1 selfloop flow, removed 4 redundant places. [2020-10-16 03:10:23,851 INFO L241 Difference]: Finished difference. Result has 91 places, 86 transitions, 401 flow [2020-10-16 03:10:23,852 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=401, PETRI_PLACES=91, PETRI_TRANSITIONS=86} [2020-10-16 03:10:23,852 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 30 predicate places. [2020-10-16 03:10:23,852 INFO L481 AbstractCegarLoop]: Abstraction has has 91 places, 86 transitions, 401 flow [2020-10-16 03:10:23,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-16 03:10:23,852 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:10:23,853 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:10:23,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 03:10:23,853 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:10:23,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:10:23,853 INFO L82 PathProgramCache]: Analyzing trace with hash 466084760, now seen corresponding path program 1 times [2020-10-16 03:10:23,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:10:23,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444633664] [2020-10-16 03:10:23,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:10:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:10:24,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:10:24,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444633664] [2020-10-16 03:10:24,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:10:24,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 03:10:24,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223570419] [2020-10-16 03:10:24,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-16 03:10:24,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:10:24,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-16 03:10:24,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-16 03:10:24,199 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 448 [2020-10-16 03:10:24,200 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 86 transitions, 401 flow. Second operand 11 states. [2020-10-16 03:10:24,200 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:10:24,200 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 448 [2020-10-16 03:10:24,201 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:10:25,070 INFO L129 PetriNetUnfolder]: 729/1567 cut-off events. [2020-10-16 03:10:25,070 INFO L130 PetriNetUnfolder]: For 593/593 co-relation queries the response was YES. [2020-10-16 03:10:25,077 INFO L80 FinitePrefix]: Finished finitePrefix Result has 3566 conditions, 1567 events. 729/1567 cut-off events. For 593/593 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 7819 event pairs, 237 based on Foata normal form. 0/1397 useless extension candidates. Maximal degree in co-relation 3548. Up to 1012 conditions per place. [2020-10-16 03:10:25,086 INFO L132 encePairwiseOnDemand]: 436/448 looper letters, 62 selfloop transitions, 26 changer transitions 7/115 dead transitions. [2020-10-16 03:10:25,087 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 115 transitions, 665 flow [2020-10-16 03:10:25,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 03:10:25,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-16 03:10:25,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2438 transitions. [2020-10-16 03:10:25,095 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.5441964285714286 [2020-10-16 03:10:25,095 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2438 transitions. [2020-10-16 03:10:25,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2438 transitions. [2020-10-16 03:10:25,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:10:25,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2438 transitions. [2020-10-16 03:10:25,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-16 03:10:25,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-16 03:10:25,108 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-16 03:10:25,108 INFO L185 Difference]: Start difference. First operand has 91 places, 86 transitions, 401 flow. Second operand 10 states and 2438 transitions. [2020-10-16 03:10:25,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 115 transitions, 665 flow [2020-10-16 03:10:25,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 115 transitions, 637 flow, removed 4 selfloop flow, removed 5 redundant places. [2020-10-16 03:10:25,114 INFO L241 Difference]: Finished difference. Result has 98 places, 90 transitions, 471 flow [2020-10-16 03:10:25,115 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=471, PETRI_PLACES=98, PETRI_TRANSITIONS=90} [2020-10-16 03:10:25,115 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 37 predicate places. [2020-10-16 03:10:25,115 INFO L481 AbstractCegarLoop]: Abstraction has has 98 places, 90 transitions, 471 flow [2020-10-16 03:10:25,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-16 03:10:25,116 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:10:25,116 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:10:25,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 03:10:25,116 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:10:25,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:10:25,116 INFO L82 PathProgramCache]: Analyzing trace with hash 823964326, now seen corresponding path program 2 times [2020-10-16 03:10:25,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:10:25,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65712982] [2020-10-16 03:10:25,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:10:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:10:25,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:10:25,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65712982] [2020-10-16 03:10:25,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:10:25,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 03:10:25,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518433862] [2020-10-16 03:10:25,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-16 03:10:25,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:10:25,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-16 03:10:25,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-10-16 03:10:25,469 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 448 [2020-10-16 03:10:25,470 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 90 transitions, 471 flow. Second operand 11 states. [2020-10-16 03:10:25,470 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:10:25,470 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 448 [2020-10-16 03:10:25,470 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:10:26,334 INFO L129 PetriNetUnfolder]: 733/1588 cut-off events. [2020-10-16 03:10:26,335 INFO L130 PetriNetUnfolder]: For 710/710 co-relation queries the response was YES. [2020-10-16 03:10:26,342 INFO L80 FinitePrefix]: Finished finitePrefix Result has 3716 conditions, 1588 events. 733/1588 cut-off events. For 710/710 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 8075 event pairs, 239 based on Foata normal form. 0/1413 useless extension candidates. Maximal degree in co-relation 3695. Up to 970 conditions per place. [2020-10-16 03:10:26,351 INFO L132 encePairwiseOnDemand]: 436/448 looper letters, 64 selfloop transitions, 28 changer transitions 5/117 dead transitions. [2020-10-16 03:10:26,352 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 117 transitions, 735 flow [2020-10-16 03:10:26,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 03:10:26,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-16 03:10:26,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2436 transitions. [2020-10-16 03:10:26,359 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.54375 [2020-10-16 03:10:26,360 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2436 transitions. [2020-10-16 03:10:26,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2436 transitions. [2020-10-16 03:10:26,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:10:26,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2436 transitions. [2020-10-16 03:10:26,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-16 03:10:26,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-16 03:10:26,372 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-16 03:10:26,372 INFO L185 Difference]: Start difference. First operand has 98 places, 90 transitions, 471 flow. Second operand 10 states and 2436 transitions. [2020-10-16 03:10:26,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 117 transitions, 735 flow [2020-10-16 03:10:26,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 117 transitions, 689 flow, removed 7 selfloop flow, removed 6 redundant places. [2020-10-16 03:10:26,379 INFO L241 Difference]: Finished difference. Result has 103 places, 92 transitions, 519 flow [2020-10-16 03:10:26,379 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=429, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=519, PETRI_PLACES=103, PETRI_TRANSITIONS=92} [2020-10-16 03:10:26,380 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 42 predicate places. [2020-10-16 03:10:26,380 INFO L481 AbstractCegarLoop]: Abstraction has has 103 places, 92 transitions, 519 flow [2020-10-16 03:10:26,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-16 03:10:26,380 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:10:26,380 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:10:26,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 03:10:26,380 INFO L429 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:10:26,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:10:26,381 INFO L82 PathProgramCache]: Analyzing trace with hash 825088696, now seen corresponding path program 3 times [2020-10-16 03:10:26,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:10:26,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908885569] [2020-10-16 03:10:26,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:10:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:10:26,647 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2020-10-16 03:10:26,868 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2020-10-16 03:10:27,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:10:27,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908885569] [2020-10-16 03:10:27,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:10:27,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-16 03:10:27,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480049187] [2020-10-16 03:10:27,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-16 03:10:27,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:10:27,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-16 03:10:27,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-16 03:10:27,172 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 448 [2020-10-16 03:10:27,173 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 92 transitions, 519 flow. Second operand 11 states. [2020-10-16 03:10:27,173 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:10:27,173 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 448 [2020-10-16 03:10:27,173 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:10:27,553 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2020-10-16 03:10:28,521 INFO L129 PetriNetUnfolder]: 730/1577 cut-off events. [2020-10-16 03:10:28,522 INFO L130 PetriNetUnfolder]: For 742/742 co-relation queries the response was YES. [2020-10-16 03:10:28,528 INFO L80 FinitePrefix]: Finished finitePrefix Result has 3739 conditions, 1577 events. 730/1577 cut-off events. For 742/742 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 8004 event pairs, 236 based on Foata normal form. 0/1407 useless extension candidates. Maximal degree in co-relation 3716. Up to 970 conditions per place. [2020-10-16 03:10:28,536 INFO L132 encePairwiseOnDemand]: 437/448 looper letters, 63 selfloop transitions, 28 changer transitions 5/115 dead transitions. [2020-10-16 03:10:28,536 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 115 transitions, 761 flow [2020-10-16 03:10:28,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-16 03:10:28,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-16 03:10:28,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2434 transitions. [2020-10-16 03:10:28,543 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.5433035714285714 [2020-10-16 03:10:28,543 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2434 transitions. [2020-10-16 03:10:28,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2434 transitions. [2020-10-16 03:10:28,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:10:28,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2434 transitions. [2020-10-16 03:10:28,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-16 03:10:28,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-16 03:10:28,554 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-16 03:10:28,555 INFO L185 Difference]: Start difference. First operand has 103 places, 92 transitions, 519 flow. Second operand 10 states and 2434 transitions. [2020-10-16 03:10:28,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 115 transitions, 761 flow [2020-10-16 03:10:28,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 115 transitions, 721 flow, removed 2 selfloop flow, removed 7 redundant places. [2020-10-16 03:10:28,562 INFO L241 Difference]: Finished difference. Result has 103 places, 90 transitions, 527 flow [2020-10-16 03:10:28,562 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=471, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=527, PETRI_PLACES=103, PETRI_TRANSITIONS=90} [2020-10-16 03:10:28,562 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 42 predicate places. [2020-10-16 03:10:28,563 INFO L481 AbstractCegarLoop]: Abstraction has has 103 places, 90 transitions, 527 flow [2020-10-16 03:10:28,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-16 03:10:28,563 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:10:28,563 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] [2020-10-16 03:10:28,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 03:10:28,563 INFO L429 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:10:28,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:10:28,564 INFO L82 PathProgramCache]: Analyzing trace with hash 941307961, now seen corresponding path program 1 times [2020-10-16 03:10:28,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:10:28,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853823901] [2020-10-16 03:10:28,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:10:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:10:28,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:10:28,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853823901] [2020-10-16 03:10:28,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:10:28,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 03:10:28,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424696039] [2020-10-16 03:10:28,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 03:10:28,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:10:28,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 03:10:28,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 03:10:28,605 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 448 [2020-10-16 03:10:28,605 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 90 transitions, 527 flow. Second operand 3 states. [2020-10-16 03:10:28,605 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:10:28,606 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 448 [2020-10-16 03:10:28,606 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:10:28,667 INFO L129 PetriNetUnfolder]: 45/284 cut-off events. [2020-10-16 03:10:28,667 INFO L130 PetriNetUnfolder]: For 154/154 co-relation queries the response was YES. [2020-10-16 03:10:28,668 INFO L80 FinitePrefix]: Finished finitePrefix Result has 607 conditions, 284 events. 45/284 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1170 event pairs, 3 based on Foata normal form. 27/288 useless extension candidates. Maximal degree in co-relation 584. Up to 44 conditions per place. [2020-10-16 03:10:28,670 INFO L132 encePairwiseOnDemand]: 440/448 looper letters, 1 selfloop transitions, 9 changer transitions 0/86 dead transitions. [2020-10-16 03:10:28,670 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 86 transitions, 527 flow [2020-10-16 03:10:28,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 03:10:28,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 03:10:28,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1169 transitions. [2020-10-16 03:10:28,674 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8697916666666666 [2020-10-16 03:10:28,674 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1169 transitions. [2020-10-16 03:10:28,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1169 transitions. [2020-10-16 03:10:28,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:10:28,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1169 transitions. [2020-10-16 03:10:28,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 03:10:28,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 03:10:28,680 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 03:10:28,680 INFO L185 Difference]: Start difference. First operand has 103 places, 90 transitions, 527 flow. Second operand 3 states and 1169 transitions. [2020-10-16 03:10:28,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 86 transitions, 527 flow [2020-10-16 03:10:28,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 86 transitions, 457 flow, removed 2 selfloop flow, removed 10 redundant places. [2020-10-16 03:10:28,685 INFO L241 Difference]: Finished difference. Result has 95 places, 86 transitions, 455 flow [2020-10-16 03:10:28,685 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=455, PETRI_PLACES=95, PETRI_TRANSITIONS=86} [2020-10-16 03:10:28,686 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 34 predicate places. [2020-10-16 03:10:28,686 INFO L481 AbstractCegarLoop]: Abstraction has has 95 places, 86 transitions, 455 flow [2020-10-16 03:10:28,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 03:10:28,686 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:10:28,686 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] [2020-10-16 03:10:28,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 03:10:28,687 INFO L429 AbstractCegarLoop]: === Iteration 12 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:10:28,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:10:28,687 INFO L82 PathProgramCache]: Analyzing trace with hash 596110164, now seen corresponding path program 1 times [2020-10-16 03:10:28,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:10:28,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736446148] [2020-10-16 03:10:28,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:10:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:10:29,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:10:29,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736446148] [2020-10-16 03:10:29,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:10:29,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-16 03:10:29,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214421716] [2020-10-16 03:10:29,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-16 03:10:29,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:10:29,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-16 03:10:29,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-10-16 03:10:29,052 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 448 [2020-10-16 03:10:29,053 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 86 transitions, 455 flow. Second operand 13 states. [2020-10-16 03:10:29,054 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:10:29,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 448 [2020-10-16 03:10:29,054 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:10:29,754 INFO L129 PetriNetUnfolder]: 306/797 cut-off events. [2020-10-16 03:10:29,754 INFO L130 PetriNetUnfolder]: For 314/314 co-relation queries the response was YES. [2020-10-16 03:10:29,756 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1989 conditions, 797 events. 306/797 cut-off events. For 314/314 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3935 event pairs, 35 based on Foata normal form. 7/753 useless extension candidates. Maximal degree in co-relation 1966. Up to 209 conditions per place. [2020-10-16 03:10:29,758 INFO L132 encePairwiseOnDemand]: 434/448 looper letters, 67 selfloop transitions, 26 changer transitions 7/119 dead transitions. [2020-10-16 03:10:29,758 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 119 transitions, 740 flow [2020-10-16 03:10:29,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-16 03:10:29,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-16 03:10:29,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2776 transitions. [2020-10-16 03:10:29,764 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.5633116883116883 [2020-10-16 03:10:29,765 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2776 transitions. [2020-10-16 03:10:29,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2776 transitions. [2020-10-16 03:10:29,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:10:29,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2776 transitions. [2020-10-16 03:10:29,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 12 states. [2020-10-16 03:10:29,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 12 states. [2020-10-16 03:10:29,775 INFO L81 ComplementDD]: Finished complementDD. Result 12 states. [2020-10-16 03:10:29,775 INFO L185 Difference]: Start difference. First operand has 95 places, 86 transitions, 455 flow. Second operand 11 states and 2776 transitions. [2020-10-16 03:10:29,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 119 transitions, 740 flow [2020-10-16 03:10:29,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 119 transitions, 720 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 03:10:29,784 INFO L241 Difference]: Finished difference. Result has 106 places, 88 transitions, 516 flow [2020-10-16 03:10:29,785 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=516, PETRI_PLACES=106, PETRI_TRANSITIONS=88} [2020-10-16 03:10:29,785 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 45 predicate places. [2020-10-16 03:10:29,785 INFO L481 AbstractCegarLoop]: Abstraction has has 106 places, 88 transitions, 516 flow [2020-10-16 03:10:29,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-16 03:10:29,785 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:10:29,785 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] [2020-10-16 03:10:29,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-16 03:10:29,785 INFO L429 AbstractCegarLoop]: === Iteration 13 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:10:29,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:10:29,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1566645164, now seen corresponding path program 1 times [2020-10-16 03:10:29,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:10:29,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210666345] [2020-10-16 03:10:29,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:10:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:10:30,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:10:30,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210666345] [2020-10-16 03:10:30,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:10:30,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-16 03:10:30,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350210487] [2020-10-16 03:10:30,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-16 03:10:30,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:10:30,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-16 03:10:30,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-10-16 03:10:30,360 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 448 [2020-10-16 03:10:30,362 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 88 transitions, 516 flow. Second operand 16 states. [2020-10-16 03:10:30,362 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:10:30,363 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 448 [2020-10-16 03:10:30,363 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:10:31,508 INFO L129 PetriNetUnfolder]: 382/1021 cut-off events. [2020-10-16 03:10:31,509 INFO L130 PetriNetUnfolder]: For 571/571 co-relation queries the response was YES. [2020-10-16 03:10:31,514 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2529 conditions, 1021 events. 382/1021 cut-off events. For 571/571 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 5517 event pairs, 72 based on Foata normal form. 3/947 useless extension candidates. Maximal degree in co-relation 2504. Up to 354 conditions per place. [2020-10-16 03:10:31,519 INFO L132 encePairwiseOnDemand]: 430/448 looper letters, 80 selfloop transitions, 36 changer transitions 8/143 dead transitions. [2020-10-16 03:10:31,519 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 143 transitions, 915 flow [2020-10-16 03:10:31,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 03:10:31,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-16 03:10:31,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3409 transitions. [2020-10-16 03:10:31,528 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.5435267857142857 [2020-10-16 03:10:31,528 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3409 transitions. [2020-10-16 03:10:31,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3409 transitions. [2020-10-16 03:10:31,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:10:31,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3409 transitions. [2020-10-16 03:10:31,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 15 states. [2020-10-16 03:10:31,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 15 states. [2020-10-16 03:10:31,543 INFO L81 ComplementDD]: Finished complementDD. Result 15 states. [2020-10-16 03:10:31,543 INFO L185 Difference]: Start difference. First operand has 106 places, 88 transitions, 516 flow. Second operand 14 states and 3409 transitions. [2020-10-16 03:10:31,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 143 transitions, 915 flow [2020-10-16 03:10:31,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 143 transitions, 862 flow, removed 0 selfloop flow, removed 8 redundant places. [2020-10-16 03:10:31,550 INFO L241 Difference]: Finished difference. Result has 115 places, 98 transitions, 614 flow [2020-10-16 03:10:31,550 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=614, PETRI_PLACES=115, PETRI_TRANSITIONS=98} [2020-10-16 03:10:31,551 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 54 predicate places. [2020-10-16 03:10:31,551 INFO L481 AbstractCegarLoop]: Abstraction has has 115 places, 98 transitions, 614 flow [2020-10-16 03:10:31,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-16 03:10:31,551 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:10:31,551 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] [2020-10-16 03:10:31,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-16 03:10:31,552 INFO L429 AbstractCegarLoop]: === Iteration 14 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:10:31,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:10:31,552 INFO L82 PathProgramCache]: Analyzing trace with hash 178004478, now seen corresponding path program 2 times [2020-10-16 03:10:31,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:10:31,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857647079] [2020-10-16 03:10:31,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:10:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:10:32,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:10:32,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857647079] [2020-10-16 03:10:32,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:10:32,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-16 03:10:32,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672982392] [2020-10-16 03:10:32,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-16 03:10:32,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:10:32,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-16 03:10:32,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-16 03:10:32,387 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 448 [2020-10-16 03:10:32,390 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 98 transitions, 614 flow. Second operand 17 states. [2020-10-16 03:10:32,391 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:10:32,391 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 448 [2020-10-16 03:10:32,391 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:10:33,636 INFO L129 PetriNetUnfolder]: 441/1195 cut-off events. [2020-10-16 03:10:33,636 INFO L130 PetriNetUnfolder]: For 702/705 co-relation queries the response was YES. [2020-10-16 03:10:33,641 INFO L80 FinitePrefix]: Finished finitePrefix Result has 3010 conditions, 1195 events. 441/1195 cut-off events. For 702/705 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 6871 event pairs, 54 based on Foata normal form. 3/1118 useless extension candidates. Maximal degree in co-relation 2980. Up to 294 conditions per place. [2020-10-16 03:10:33,647 INFO L132 encePairwiseOnDemand]: 430/448 looper letters, 85 selfloop transitions, 39 changer transitions 7/150 dead transitions. [2020-10-16 03:10:33,647 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 150 transitions, 1018 flow [2020-10-16 03:10:33,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-16 03:10:33,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-16 03:10:33,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3614 transitions. [2020-10-16 03:10:33,665 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.537797619047619 [2020-10-16 03:10:33,665 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3614 transitions. [2020-10-16 03:10:33,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3614 transitions. [2020-10-16 03:10:33,667 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:10:33,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3614 transitions. [2020-10-16 03:10:33,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 16 states. [2020-10-16 03:10:33,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 16 states. [2020-10-16 03:10:33,682 INFO L81 ComplementDD]: Finished complementDD. Result 16 states. [2020-10-16 03:10:33,682 INFO L185 Difference]: Start difference. First operand has 115 places, 98 transitions, 614 flow. Second operand 15 states and 3614 transitions. [2020-10-16 03:10:33,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 150 transitions, 1018 flow [2020-10-16 03:10:33,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 150 transitions, 974 flow, removed 4 selfloop flow, removed 7 redundant places. [2020-10-16 03:10:33,697 INFO L241 Difference]: Finished difference. Result has 126 places, 103 transitions, 703 flow [2020-10-16 03:10:33,697 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=703, PETRI_PLACES=126, PETRI_TRANSITIONS=103} [2020-10-16 03:10:33,697 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 65 predicate places. [2020-10-16 03:10:33,698 INFO L481 AbstractCegarLoop]: Abstraction has has 126 places, 103 transitions, 703 flow [2020-10-16 03:10:33,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-16 03:10:33,698 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:10:33,698 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] [2020-10-16 03:10:33,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-16 03:10:33,698 INFO L429 AbstractCegarLoop]: === Iteration 15 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:10:33,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:10:33,699 INFO L82 PathProgramCache]: Analyzing trace with hash 2008452084, now seen corresponding path program 3 times [2020-10-16 03:10:33,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:10:33,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663700265] [2020-10-16 03:10:33,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:10:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:10:34,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:10:34,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663700265] [2020-10-16 03:10:34,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:10:34,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-10-16 03:10:34,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781890376] [2020-10-16 03:10:34,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-16 03:10:34,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:10:34,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-16 03:10:34,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2020-10-16 03:10:34,611 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 448 [2020-10-16 03:10:34,613 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 103 transitions, 703 flow. Second operand 17 states. [2020-10-16 03:10:34,613 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:10:34,613 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 448 [2020-10-16 03:10:34,613 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:10:35,750 INFO L129 PetriNetUnfolder]: 482/1308 cut-off events. [2020-10-16 03:10:35,750 INFO L130 PetriNetUnfolder]: For 925/925 co-relation queries the response was YES. [2020-10-16 03:10:35,757 INFO L80 FinitePrefix]: Finished finitePrefix Result has 3388 conditions, 1308 events. 482/1308 cut-off events. For 925/925 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7455 event pairs, 54 based on Foata normal form. 3/1210 useless extension candidates. Maximal degree in co-relation 3353. Up to 256 conditions per place. [2020-10-16 03:10:35,763 INFO L132 encePairwiseOnDemand]: 431/448 looper letters, 83 selfloop transitions, 42 changer transitions 8/152 dead transitions. [2020-10-16 03:10:35,763 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 152 transitions, 1112 flow [2020-10-16 03:10:35,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-16 03:10:35,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-16 03:10:35,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3406 transitions. [2020-10-16 03:10:35,767 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.5430484693877551 [2020-10-16 03:10:35,767 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3406 transitions. [2020-10-16 03:10:35,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3406 transitions. [2020-10-16 03:10:35,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:10:35,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3406 transitions. [2020-10-16 03:10:35,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 15 states. [2020-10-16 03:10:35,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 15 states. [2020-10-16 03:10:35,776 INFO L81 ComplementDD]: Finished complementDD. Result 15 states. [2020-10-16 03:10:35,776 INFO L185 Difference]: Start difference. First operand has 126 places, 103 transitions, 703 flow. Second operand 14 states and 3406 transitions. [2020-10-16 03:10:35,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 152 transitions, 1112 flow [2020-10-16 03:10:35,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 152 transitions, 1036 flow, removed 6 selfloop flow, removed 11 redundant places. [2020-10-16 03:10:35,786 INFO L241 Difference]: Finished difference. Result has 132 places, 108 transitions, 793 flow [2020-10-16 03:10:35,787 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=632, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=793, PETRI_PLACES=132, PETRI_TRANSITIONS=108} [2020-10-16 03:10:35,787 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 71 predicate places. [2020-10-16 03:10:35,787 INFO L481 AbstractCegarLoop]: Abstraction has has 132 places, 108 transitions, 793 flow [2020-10-16 03:10:35,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-16 03:10:35,787 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:10:35,787 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] [2020-10-16 03:10:35,787 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-16 03:10:35,787 INFO L429 AbstractCegarLoop]: === Iteration 16 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:10:35,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:10:35,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1466054021, now seen corresponding path program 1 times [2020-10-16 03:10:35,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:10:35,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123423221] [2020-10-16 03:10:35,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:10:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:10:36,363 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 43 [2020-10-16 03:10:36,562 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 30 [2020-10-16 03:10:36,794 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2020-10-16 03:10:37,345 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 37 [2020-10-16 03:10:38,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:10:38,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123423221] [2020-10-16 03:10:38,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:10:38,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-16 03:10:38,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300604944] [2020-10-16 03:10:38,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-16 03:10:38,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:10:38,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-16 03:10:38,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2020-10-16 03:10:38,282 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 448 [2020-10-16 03:10:38,283 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 108 transitions, 793 flow. Second operand 20 states. [2020-10-16 03:10:38,283 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:10:38,283 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 448 [2020-10-16 03:10:38,283 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:10:42,199 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-10-16 03:10:43,243 INFO L129 PetriNetUnfolder]: 1866/3683 cut-off events. [2020-10-16 03:10:43,243 INFO L130 PetriNetUnfolder]: For 3427/3429 co-relation queries the response was YES. [2020-10-16 03:10:43,255 INFO L80 FinitePrefix]: Finished finitePrefix Result has 10121 conditions, 3683 events. 1866/3683 cut-off events. For 3427/3429 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 20715 event pairs, 568 based on Foata normal form. 71/3551 useless extension candidates. Maximal degree in co-relation 10083. Up to 2025 conditions per place. [2020-10-16 03:10:43,268 INFO L132 encePairwiseOnDemand]: 425/448 looper letters, 185 selfloop transitions, 73 changer transitions 42/307 dead transitions. [2020-10-16 03:10:43,268 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 307 transitions, 2173 flow [2020-10-16 03:10:43,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-16 03:10:43,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-16 03:10:43,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 5883 transitions. [2020-10-16 03:10:43,276 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.42360311059907835 [2020-10-16 03:10:43,276 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 5883 transitions. [2020-10-16 03:10:43,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 5883 transitions. [2020-10-16 03:10:43,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:10:43,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 5883 transitions. [2020-10-16 03:10:43,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 32 states. [2020-10-16 03:10:43,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 32 states. [2020-10-16 03:10:43,289 INFO L81 ComplementDD]: Finished complementDD. Result 32 states. [2020-10-16 03:10:43,289 INFO L185 Difference]: Start difference. First operand has 132 places, 108 transitions, 793 flow. Second operand 31 states and 5883 transitions. [2020-10-16 03:10:43,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 307 transitions, 2173 flow [2020-10-16 03:10:43,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 307 transitions, 2097 flow, removed 5 selfloop flow, removed 9 redundant places. [2020-10-16 03:10:43,311 INFO L241 Difference]: Finished difference. Result has 172 places, 153 transitions, 1356 flow [2020-10-16 03:10:43,311 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=1356, PETRI_PLACES=172, PETRI_TRANSITIONS=153} [2020-10-16 03:10:43,311 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 111 predicate places. [2020-10-16 03:10:43,311 INFO L481 AbstractCegarLoop]: Abstraction has has 172 places, 153 transitions, 1356 flow [2020-10-16 03:10:43,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-16 03:10:43,312 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:10:43,312 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 03:10:43,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-16 03:10:43,312 INFO L429 AbstractCegarLoop]: === Iteration 17 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:10:43,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:10:43,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1323150317, now seen corresponding path program 2 times [2020-10-16 03:10:43,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:10:43,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345959818] [2020-10-16 03:10:43,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:10:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:10:43,904 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 47 [2020-10-16 03:10:44,072 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 35 [2020-10-16 03:10:44,276 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 38 [2020-10-16 03:10:44,900 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 38 [2020-10-16 03:10:45,049 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 31 [2020-10-16 03:10:45,410 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 23 [2020-10-16 03:10:45,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:10:45,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345959818] [2020-10-16 03:10:45,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:10:45,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-16 03:10:45,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202459524] [2020-10-16 03:10:45,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-16 03:10:45,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:10:45,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-16 03:10:45,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2020-10-16 03:10:45,555 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 448 [2020-10-16 03:10:45,557 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 153 transitions, 1356 flow. Second operand 20 states. [2020-10-16 03:10:45,557 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:10:45,557 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 448 [2020-10-16 03:10:45,557 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:10:48,321 INFO L129 PetriNetUnfolder]: 1925/3761 cut-off events. [2020-10-16 03:10:48,322 INFO L130 PetriNetUnfolder]: For 21418/21418 co-relation queries the response was YES. [2020-10-16 03:10:48,337 INFO L80 FinitePrefix]: Finished finitePrefix Result has 16104 conditions, 3761 events. 1925/3761 cut-off events. For 21418/21418 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 20526 event pairs, 791 based on Foata normal form. 85/3638 useless extension candidates. Maximal degree in co-relation 16047. Up to 3037 conditions per place. [2020-10-16 03:10:48,349 INFO L132 encePairwiseOnDemand]: 427/448 looper letters, 204 selfloop transitions, 42 changer transitions 17/270 dead transitions. [2020-10-16 03:10:48,349 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 270 transitions, 2688 flow [2020-10-16 03:10:48,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-16 03:10:48,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-16 03:10:48,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4341 transitions. [2020-10-16 03:10:48,354 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.42129270186335405 [2020-10-16 03:10:48,354 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4341 transitions. [2020-10-16 03:10:48,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4341 transitions. [2020-10-16 03:10:48,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:10:48,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4341 transitions. [2020-10-16 03:10:48,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 24 states. [2020-10-16 03:10:48,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 24 states. [2020-10-16 03:10:48,365 INFO L81 ComplementDD]: Finished complementDD. Result 24 states. [2020-10-16 03:10:48,366 INFO L185 Difference]: Start difference. First operand has 172 places, 153 transitions, 1356 flow. Second operand 23 states and 4341 transitions. [2020-10-16 03:10:48,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 270 transitions, 2688 flow [2020-10-16 03:10:48,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 270 transitions, 2583 flow, removed 11 selfloop flow, removed 12 redundant places. [2020-10-16 03:10:48,429 INFO L241 Difference]: Finished difference. Result has 199 places, 191 transitions, 1903 flow [2020-10-16 03:10:48,429 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=1285, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=1903, PETRI_PLACES=199, PETRI_TRANSITIONS=191} [2020-10-16 03:10:48,430 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 138 predicate places. [2020-10-16 03:10:48,430 INFO L481 AbstractCegarLoop]: Abstraction has has 199 places, 191 transitions, 1903 flow [2020-10-16 03:10:48,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-16 03:10:48,430 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:10:48,430 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] [2020-10-16 03:10:48,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-16 03:10:48,430 INFO L429 AbstractCegarLoop]: === Iteration 18 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:10:48,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:10:48,431 INFO L82 PathProgramCache]: Analyzing trace with hash -606653303, now seen corresponding path program 3 times [2020-10-16 03:10:48,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:10:48,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123880248] [2020-10-16 03:10:48,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:10:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:10:48,803 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 38 [2020-10-16 03:10:48,972 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 39 [2020-10-16 03:10:49,150 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 41 [2020-10-16 03:10:49,279 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 33 [2020-10-16 03:10:49,445 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 34 [2020-10-16 03:10:49,950 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 38 [2020-10-16 03:10:50,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:10:50,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123880248] [2020-10-16 03:10:50,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:10:50,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-16 03:10:50,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365499197] [2020-10-16 03:10:50,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-16 03:10:50,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:10:50,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-16 03:10:50,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2020-10-16 03:10:50,593 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 448 [2020-10-16 03:10:50,594 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 191 transitions, 1903 flow. Second operand 20 states. [2020-10-16 03:10:50,594 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:10:50,594 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 448 [2020-10-16 03:10:50,594 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:10:53,970 INFO L129 PetriNetUnfolder]: 2122/4172 cut-off events. [2020-10-16 03:10:53,970 INFO L130 PetriNetUnfolder]: For 70544/70544 co-relation queries the response was YES. [2020-10-16 03:10:54,001 INFO L80 FinitePrefix]: Finished finitePrefix Result has 21464 conditions, 4172 events. 2122/4172 cut-off events. For 70544/70544 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 23749 event pairs, 695 based on Foata normal form. 75/4011 useless extension candidates. Maximal degree in co-relation 21392. Up to 3304 conditions per place. [2020-10-16 03:10:54,025 INFO L132 encePairwiseOnDemand]: 426/448 looper letters, 232 selfloop transitions, 48 changer transitions 18/305 dead transitions. [2020-10-16 03:10:54,026 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 305 transitions, 3423 flow [2020-10-16 03:10:54,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-16 03:10:54,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-16 03:10:54,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4156 transitions. [2020-10-16 03:10:54,032 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.42167207792207795 [2020-10-16 03:10:54,032 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4156 transitions. [2020-10-16 03:10:54,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4156 transitions. [2020-10-16 03:10:54,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:10:54,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4156 transitions. [2020-10-16 03:10:54,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 23 states. [2020-10-16 03:10:54,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 23 states. [2020-10-16 03:10:54,046 INFO L81 ComplementDD]: Finished complementDD. Result 23 states. [2020-10-16 03:10:54,046 INFO L185 Difference]: Start difference. First operand has 199 places, 191 transitions, 1903 flow. Second operand 22 states and 4156 transitions. [2020-10-16 03:10:54,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 305 transitions, 3423 flow [2020-10-16 03:10:54,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 305 transitions, 3303 flow, removed 60 selfloop flow, removed 0 redundant places. [2020-10-16 03:10:54,211 INFO L241 Difference]: Finished difference. Result has 234 places, 223 transitions, 2426 flow [2020-10-16 03:10:54,211 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=1807, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=2426, PETRI_PLACES=234, PETRI_TRANSITIONS=223} [2020-10-16 03:10:54,212 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 173 predicate places. [2020-10-16 03:10:54,212 INFO L481 AbstractCegarLoop]: Abstraction has has 234 places, 223 transitions, 2426 flow [2020-10-16 03:10:54,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-16 03:10:54,212 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:10:54,212 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] [2020-10-16 03:10:54,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-16 03:10:54,212 INFO L429 AbstractCegarLoop]: === Iteration 19 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:10:54,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:10:54,213 INFO L82 PathProgramCache]: Analyzing trace with hash -196683709, now seen corresponding path program 4 times [2020-10-16 03:10:54,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:10:54,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236071523] [2020-10-16 03:10:54,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:10:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:10:54,940 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 47 [2020-10-16 03:10:55,103 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 35 [2020-10-16 03:10:55,309 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 38 [2020-10-16 03:10:55,918 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 39 [2020-10-16 03:10:56,133 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 32 [2020-10-16 03:10:56,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:10:56,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236071523] [2020-10-16 03:10:56,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:10:56,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-16 03:10:56,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594943842] [2020-10-16 03:10:56,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-16 03:10:56,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:10:56,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-16 03:10:56,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2020-10-16 03:10:56,565 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 448 [2020-10-16 03:10:56,567 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 223 transitions, 2426 flow. Second operand 20 states. [2020-10-16 03:10:56,567 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:10:56,567 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 448 [2020-10-16 03:10:56,567 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:10:58,891 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-10-16 03:10:59,915 INFO L129 PetriNetUnfolder]: 2317/4577 cut-off events. [2020-10-16 03:10:59,915 INFO L130 PetriNetUnfolder]: For 128330/128330 co-relation queries the response was YES. [2020-10-16 03:10:59,950 INFO L80 FinitePrefix]: Finished finitePrefix Result has 25759 conditions, 4577 events. 2317/4577 cut-off events. For 128330/128330 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 26850 event pairs, 942 based on Foata normal form. 75/4388 useless extension candidates. Maximal degree in co-relation 25672. Up to 3774 conditions per place. [2020-10-16 03:10:59,968 INFO L132 encePairwiseOnDemand]: 427/448 looper letters, 262 selfloop transitions, 47 changer transitions 17/333 dead transitions. [2020-10-16 03:10:59,968 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 333 transitions, 4004 flow [2020-10-16 03:10:59,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-16 03:10:59,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-16 03:10:59,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4337 transitions. [2020-10-16 03:10:59,974 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.4209045031055901 [2020-10-16 03:10:59,975 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4337 transitions. [2020-10-16 03:10:59,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4337 transitions. [2020-10-16 03:10:59,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:10:59,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4337 transitions. [2020-10-16 03:10:59,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 24 states. [2020-10-16 03:10:59,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 24 states. [2020-10-16 03:10:59,988 INFO L81 ComplementDD]: Finished complementDD. Result 24 states. [2020-10-16 03:10:59,988 INFO L185 Difference]: Start difference. First operand has 234 places, 223 transitions, 2426 flow. Second operand 23 states and 4337 transitions. [2020-10-16 03:10:59,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 333 transitions, 4004 flow [2020-10-16 03:11:00,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 333 transitions, 3876 flow, removed 62 selfloop flow, removed 1 redundant places. [2020-10-16 03:11:00,228 INFO L241 Difference]: Finished difference. Result has 270 places, 255 transitions, 2984 flow [2020-10-16 03:11:00,229 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=2298, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=2984, PETRI_PLACES=270, PETRI_TRANSITIONS=255} [2020-10-16 03:11:00,229 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 209 predicate places. [2020-10-16 03:11:00,229 INFO L481 AbstractCegarLoop]: Abstraction has has 270 places, 255 transitions, 2984 flow [2020-10-16 03:11:00,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-16 03:11:00,229 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:11:00,229 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] [2020-10-16 03:11:00,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-16 03:11:00,230 INFO L429 AbstractCegarLoop]: === Iteration 20 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:11:00,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:11:00,230 INFO L82 PathProgramCache]: Analyzing trace with hash 2108183575, now seen corresponding path program 5 times [2020-10-16 03:11:00,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:11:00,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247450391] [2020-10-16 03:11:00,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:11:00,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:11:00,764 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 45 [2020-10-16 03:11:00,921 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 31 [2020-10-16 03:11:01,103 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 33 [2020-10-16 03:11:01,290 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 38 [2020-10-16 03:11:01,948 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 40 [2020-10-16 03:11:02,348 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 32 [2020-10-16 03:11:02,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:11:02,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247450391] [2020-10-16 03:11:02,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:11:02,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-16 03:11:02,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320785254] [2020-10-16 03:11:02,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-16 03:11:02,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:11:02,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-16 03:11:02,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2020-10-16 03:11:02,803 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 448 [2020-10-16 03:11:02,804 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 255 transitions, 2984 flow. Second operand 20 states. [2020-10-16 03:11:02,804 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:11:02,805 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 448 [2020-10-16 03:11:02,805 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:11:07,287 INFO L129 PetriNetUnfolder]: 2487/4939 cut-off events. [2020-10-16 03:11:07,287 INFO L130 PetriNetUnfolder]: For 215690/215690 co-relation queries the response was YES. [2020-10-16 03:11:07,326 INFO L80 FinitePrefix]: Finished finitePrefix Result has 29683 conditions, 4939 events. 2487/4939 cut-off events. For 215690/215690 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 29829 event pairs, 892 based on Foata normal form. 89/4736 useless extension candidates. Maximal degree in co-relation 29580. Up to 3877 conditions per place. [2020-10-16 03:11:07,342 INFO L132 encePairwiseOnDemand]: 427/448 looper letters, 285 selfloop transitions, 59 changer transitions 19/370 dead transitions. [2020-10-16 03:11:07,342 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 370 transitions, 4901 flow [2020-10-16 03:11:07,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-16 03:11:07,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-16 03:11:07,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4343 transitions. [2020-10-16 03:11:07,349 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.42148680124223603 [2020-10-16 03:11:07,349 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4343 transitions. [2020-10-16 03:11:07,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4343 transitions. [2020-10-16 03:11:07,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:11:07,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4343 transitions. [2020-10-16 03:11:07,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 24 states. [2020-10-16 03:11:07,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 24 states. [2020-10-16 03:11:07,362 INFO L81 ComplementDD]: Finished complementDD. Result 24 states. [2020-10-16 03:11:07,362 INFO L185 Difference]: Start difference. First operand has 270 places, 255 transitions, 2984 flow. Second operand 23 states and 4343 transitions. [2020-10-16 03:11:07,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 370 transitions, 4901 flow [2020-10-16 03:11:07,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 370 transitions, 4709 flow, removed 94 selfloop flow, removed 1 redundant places. [2020-10-16 03:11:07,651 INFO L241 Difference]: Finished difference. Result has 305 places, 288 transitions, 3578 flow [2020-10-16 03:11:07,652 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=2792, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=3578, PETRI_PLACES=305, PETRI_TRANSITIONS=288} [2020-10-16 03:11:07,652 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 244 predicate places. [2020-10-16 03:11:07,652 INFO L481 AbstractCegarLoop]: Abstraction has has 305 places, 288 transitions, 3578 flow [2020-10-16 03:11:07,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-16 03:11:07,652 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:11:07,652 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] [2020-10-16 03:11:07,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-16 03:11:07,652 INFO L429 AbstractCegarLoop]: === Iteration 21 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:11:07,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:11:07,653 INFO L82 PathProgramCache]: Analyzing trace with hash 555234637, now seen corresponding path program 6 times [2020-10-16 03:11:07,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:11:07,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288064993] [2020-10-16 03:11:07,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:11:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:11:08,144 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 44 [2020-10-16 03:11:08,288 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 30 [2020-10-16 03:11:08,456 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2020-10-16 03:11:08,627 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 36 [2020-10-16 03:11:09,266 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 40 [2020-10-16 03:11:09,472 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 32 [2020-10-16 03:11:09,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:11:09,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288064993] [2020-10-16 03:11:09,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:11:09,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-16 03:11:09,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123703077] [2020-10-16 03:11:09,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-16 03:11:09,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:11:09,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-16 03:11:09,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2020-10-16 03:11:09,918 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 448 [2020-10-16 03:11:09,919 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 288 transitions, 3578 flow. Second operand 20 states. [2020-10-16 03:11:09,919 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:11:09,919 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 448 [2020-10-16 03:11:09,919 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:11:13,595 INFO L129 PetriNetUnfolder]: 2674/5320 cut-off events. [2020-10-16 03:11:13,596 INFO L130 PetriNetUnfolder]: For 302393/302393 co-relation queries the response was YES. [2020-10-16 03:11:13,658 INFO L80 FinitePrefix]: Finished finitePrefix Result has 34193 conditions, 5320 events. 2674/5320 cut-off events. For 302393/302393 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 32872 event pairs, 960 based on Foata normal form. 59/5059 useless extension candidates. Maximal degree in co-relation 34075. Up to 4225 conditions per place. [2020-10-16 03:11:13,671 INFO L132 encePairwiseOnDemand]: 427/448 looper letters, 305 selfloop transitions, 64 changer transitions 20/396 dead transitions. [2020-10-16 03:11:13,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 396 transitions, 5697 flow [2020-10-16 03:11:13,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-16 03:11:13,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-16 03:11:13,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4340 transitions. [2020-10-16 03:11:13,679 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.421195652173913 [2020-10-16 03:11:13,679 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4340 transitions. [2020-10-16 03:11:13,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4340 transitions. [2020-10-16 03:11:13,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:11:13,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4340 transitions. [2020-10-16 03:11:13,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 24 states. [2020-10-16 03:11:13,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 24 states. [2020-10-16 03:11:13,692 INFO L81 ComplementDD]: Finished complementDD. Result 24 states. [2020-10-16 03:11:13,692 INFO L185 Difference]: Start difference. First operand has 305 places, 288 transitions, 3578 flow. Second operand 23 states and 4340 transitions. [2020-10-16 03:11:13,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 396 transitions, 5697 flow [2020-10-16 03:11:14,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 396 transitions, 5388 flow, removed 140 selfloop flow, removed 3 redundant places. [2020-10-16 03:11:14,154 INFO L241 Difference]: Finished difference. Result has 336 places, 316 transitions, 4050 flow [2020-10-16 03:11:14,154 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=3283, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=4050, PETRI_PLACES=336, PETRI_TRANSITIONS=316} [2020-10-16 03:11:14,155 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 275 predicate places. [2020-10-16 03:11:14,155 INFO L481 AbstractCegarLoop]: Abstraction has has 336 places, 316 transitions, 4050 flow [2020-10-16 03:11:14,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-16 03:11:14,155 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:11:14,155 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] [2020-10-16 03:11:14,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-16 03:11:14,155 INFO L429 AbstractCegarLoop]: === Iteration 22 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:11:14,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:11:14,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1019119679, now seen corresponding path program 7 times [2020-10-16 03:11:14,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:11:14,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472412563] [2020-10-16 03:11:14,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:11:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:11:14,667 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 44 [2020-10-16 03:11:14,854 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 30 [2020-10-16 03:11:15,023 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2020-10-16 03:11:15,736 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 38 [2020-10-16 03:11:15,890 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 31 [2020-10-16 03:11:16,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:11:16,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472412563] [2020-10-16 03:11:16,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:11:16,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-16 03:11:16,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402352336] [2020-10-16 03:11:16,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-16 03:11:16,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:11:16,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-16 03:11:16,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2020-10-16 03:11:16,330 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 448 [2020-10-16 03:11:16,331 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 316 transitions, 4050 flow. Second operand 20 states. [2020-10-16 03:11:16,331 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:11:16,331 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 448 [2020-10-16 03:11:16,331 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:11:18,012 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2020-10-16 03:11:20,223 INFO L129 PetriNetUnfolder]: 2861/5701 cut-off events. [2020-10-16 03:11:20,223 INFO L130 PetriNetUnfolder]: For 399426/399428 co-relation queries the response was YES. [2020-10-16 03:11:20,291 INFO L80 FinitePrefix]: Finished finitePrefix Result has 37872 conditions, 5701 events. 2861/5701 cut-off events. For 399426/399428 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 36046 event pairs, 965 based on Foata normal form. 61/5417 useless extension candidates. Maximal degree in co-relation 37741. Up to 3760 conditions per place. [2020-10-16 03:11:20,305 INFO L132 encePairwiseOnDemand]: 426/448 looper letters, 324 selfloop transitions, 85 changer transitions 27/443 dead transitions. [2020-10-16 03:11:20,305 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 443 transitions, 6609 flow [2020-10-16 03:11:20,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-16 03:11:20,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-16 03:11:20,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4368 transitions. [2020-10-16 03:11:20,310 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.42391304347826086 [2020-10-16 03:11:20,310 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4368 transitions. [2020-10-16 03:11:20,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4368 transitions. [2020-10-16 03:11:20,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:11:20,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4368 transitions. [2020-10-16 03:11:20,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 24 states. [2020-10-16 03:11:20,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 24 states. [2020-10-16 03:11:20,321 INFO L81 ComplementDD]: Finished complementDD. Result 24 states. [2020-10-16 03:11:20,321 INFO L185 Difference]: Start difference. First operand has 336 places, 316 transitions, 4050 flow. Second operand 23 states and 4368 transitions. [2020-10-16 03:11:20,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 443 transitions, 6609 flow [2020-10-16 03:11:21,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 443 transitions, 6266 flow, removed 141 selfloop flow, removed 5 redundant places. [2020-10-16 03:11:21,074 INFO L241 Difference]: Finished difference. Result has 365 places, 345 transitions, 4625 flow [2020-10-16 03:11:21,074 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=3707, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=4625, PETRI_PLACES=365, PETRI_TRANSITIONS=345} [2020-10-16 03:11:21,074 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 304 predicate places. [2020-10-16 03:11:21,075 INFO L481 AbstractCegarLoop]: Abstraction has has 365 places, 345 transitions, 4625 flow [2020-10-16 03:11:21,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-16 03:11:21,075 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:11:21,075 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] [2020-10-16 03:11:21,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-16 03:11:21,075 INFO L429 AbstractCegarLoop]: === Iteration 23 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:11:21,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:11:21,076 INFO L82 PathProgramCache]: Analyzing trace with hash 824642853, now seen corresponding path program 8 times [2020-10-16 03:11:21,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:11:21,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348196867] [2020-10-16 03:11:21,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:11:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:11:21,896 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 41 [2020-10-16 03:11:22,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:11:22,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348196867] [2020-10-16 03:11:22,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:11:22,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-16 03:11:22,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880122865] [2020-10-16 03:11:22,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-16 03:11:22,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:11:22,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-16 03:11:22,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2020-10-16 03:11:22,390 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 448 [2020-10-16 03:11:22,392 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 345 transitions, 4625 flow. Second operand 20 states. [2020-10-16 03:11:22,392 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:11:22,393 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 448 [2020-10-16 03:11:22,393 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:11:26,387 INFO L129 PetriNetUnfolder]: 3215/6378 cut-off events. [2020-10-16 03:11:26,387 INFO L130 PetriNetUnfolder]: For 516492/516504 co-relation queries the response was YES. [2020-10-16 03:11:26,523 INFO L80 FinitePrefix]: Finished finitePrefix Result has 42844 conditions, 6378 events. 3215/6378 cut-off events. For 516492/516504 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 41610 event pairs, 881 based on Foata normal form. 66/6034 useless extension candidates. Maximal degree in co-relation 42700. Up to 3756 conditions per place. [2020-10-16 03:11:26,540 INFO L132 encePairwiseOnDemand]: 426/448 looper letters, 327 selfloop transitions, 140 changer transitions 41/515 dead transitions. [2020-10-16 03:11:26,540 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 515 transitions, 7933 flow [2020-10-16 03:11:26,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-16 03:11:26,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-16 03:11:26,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 5279 transitions. [2020-10-16 03:11:26,547 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.4208386479591837 [2020-10-16 03:11:26,547 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 5279 transitions. [2020-10-16 03:11:26,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 5279 transitions. [2020-10-16 03:11:26,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:11:26,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 5279 transitions. [2020-10-16 03:11:26,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 29 states. [2020-10-16 03:11:26,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 29 states. [2020-10-16 03:11:26,565 INFO L81 ComplementDD]: Finished complementDD. Result 29 states. [2020-10-16 03:11:26,565 INFO L185 Difference]: Start difference. First operand has 365 places, 345 transitions, 4625 flow. Second operand 28 states and 5279 transitions. [2020-10-16 03:11:26,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 515 transitions, 7933 flow [2020-10-16 03:11:27,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 515 transitions, 7524 flow, removed 174 selfloop flow, removed 5 redundant places. [2020-10-16 03:11:27,514 INFO L241 Difference]: Finished difference. Result has 407 places, 399 transitions, 5533 flow [2020-10-16 03:11:27,515 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=4216, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=5533, PETRI_PLACES=407, PETRI_TRANSITIONS=399} [2020-10-16 03:11:27,515 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 346 predicate places. [2020-10-16 03:11:27,515 INFO L481 AbstractCegarLoop]: Abstraction has has 407 places, 399 transitions, 5533 flow [2020-10-16 03:11:27,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-16 03:11:27,515 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:11:27,515 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] [2020-10-16 03:11:27,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-16 03:11:27,515 INFO L429 AbstractCegarLoop]: === Iteration 24 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:11:27,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:11:27,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1612699131, now seen corresponding path program 9 times [2020-10-16 03:11:27,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:11:27,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364404797] [2020-10-16 03:11:27,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:11:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:11:27,799 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 39 [2020-10-16 03:11:28,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:11:28,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364404797] [2020-10-16 03:11:28,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:11:28,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-16 03:11:28,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75115514] [2020-10-16 03:11:28,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-16 03:11:28,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:11:28,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-16 03:11:28,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2020-10-16 03:11:28,884 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 448 [2020-10-16 03:11:28,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 399 transitions, 5533 flow. Second operand 20 states. [2020-10-16 03:11:28,885 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:11:28,885 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 448 [2020-10-16 03:11:28,885 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:11:34,243 INFO L129 PetriNetUnfolder]: 3519/6994 cut-off events. [2020-10-16 03:11:34,243 INFO L130 PetriNetUnfolder]: For 629082/629094 co-relation queries the response was YES. [2020-10-16 03:11:34,348 INFO L80 FinitePrefix]: Finished finitePrefix Result has 53386 conditions, 6994 events. 3519/6994 cut-off events. For 629082/629094 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 46817 event pairs, 896 based on Foata normal form. 36/6586 useless extension candidates. Maximal degree in co-relation 53221. Up to 3801 conditions per place. [2020-10-16 03:11:34,366 INFO L132 encePairwiseOnDemand]: 426/448 looper letters, 321 selfloop transitions, 206 changer transitions 51/585 dead transitions. [2020-10-16 03:11:34,366 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 585 transitions, 9828 flow [2020-10-16 03:11:34,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-16 03:11:34,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-16 03:11:34,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 5837 transitions. [2020-10-16 03:11:34,372 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.4202908986175115 [2020-10-16 03:11:34,372 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 5837 transitions. [2020-10-16 03:11:34,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 5837 transitions. [2020-10-16 03:11:34,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:11:34,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 5837 transitions. [2020-10-16 03:11:34,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 32 states. [2020-10-16 03:11:34,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 32 states. [2020-10-16 03:11:34,384 INFO L81 ComplementDD]: Finished complementDD. Result 32 states. [2020-10-16 03:11:34,384 INFO L185 Difference]: Start difference. First operand has 407 places, 399 transitions, 5533 flow. Second operand 31 states and 5837 transitions. [2020-10-16 03:11:34,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 585 transitions, 9828 flow [2020-10-16 03:11:35,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 585 transitions, 9322 flow, removed 173 selfloop flow, removed 12 redundant places. [2020-10-16 03:11:35,698 INFO L241 Difference]: Finished difference. Result has 439 places, 449 transitions, 6658 flow [2020-10-16 03:11:35,699 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=5107, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=162, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=6658, PETRI_PLACES=439, PETRI_TRANSITIONS=449} [2020-10-16 03:11:35,699 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 378 predicate places. [2020-10-16 03:11:35,699 INFO L481 AbstractCegarLoop]: Abstraction has has 439 places, 449 transitions, 6658 flow [2020-10-16 03:11:35,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-16 03:11:35,699 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:11:35,700 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] [2020-10-16 03:11:35,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-16 03:11:35,700 INFO L429 AbstractCegarLoop]: === Iteration 25 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:11:35,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:11:35,700 INFO L82 PathProgramCache]: Analyzing trace with hash 897568797, now seen corresponding path program 10 times [2020-10-16 03:11:35,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:11:35,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790831686] [2020-10-16 03:11:35,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:11:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:11:36,018 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 39 [2020-10-16 03:11:36,505 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 40 [2020-10-16 03:11:37,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:11:37,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790831686] [2020-10-16 03:11:37,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:11:37,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-16 03:11:37,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124400390] [2020-10-16 03:11:37,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-16 03:11:37,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:11:37,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-16 03:11:37,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2020-10-16 03:11:37,104 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 448 [2020-10-16 03:11:37,105 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 449 transitions, 6658 flow. Second operand 20 states. [2020-10-16 03:11:37,105 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:11:37,105 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 448 [2020-10-16 03:11:37,105 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:11:42,602 INFO L129 PetriNetUnfolder]: 3705/7366 cut-off events. [2020-10-16 03:11:42,602 INFO L130 PetriNetUnfolder]: For 771615/771647 co-relation queries the response was YES. [2020-10-16 03:11:42,756 INFO L80 FinitePrefix]: Finished finitePrefix Result has 63386 conditions, 7366 events. 3705/7366 cut-off events. For 771615/771647 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 50174 event pairs, 654 based on Foata normal form. 48/6978 useless extension candidates. Maximal degree in co-relation 63207. Up to 3434 conditions per place. [2020-10-16 03:11:42,779 INFO L132 encePairwiseOnDemand]: 425/448 looper letters, 292 selfloop transitions, 283 changer transitions 42/624 dead transitions. [2020-10-16 03:11:42,780 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 466 places, 624 transitions, 11316 flow [2020-10-16 03:11:42,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-16 03:11:42,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-16 03:11:42,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 5853 transitions. [2020-10-16 03:11:42,790 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.4214429723502304 [2020-10-16 03:11:42,790 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 5853 transitions. [2020-10-16 03:11:42,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 5853 transitions. [2020-10-16 03:11:42,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:11:42,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 5853 transitions. [2020-10-16 03:11:42,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 32 states. [2020-10-16 03:11:42,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 32 states. [2020-10-16 03:11:42,803 INFO L81 ComplementDD]: Finished complementDD. Result 32 states. [2020-10-16 03:11:42,803 INFO L185 Difference]: Start difference. First operand has 439 places, 449 transitions, 6658 flow. Second operand 31 states and 5853 transitions. [2020-10-16 03:11:42,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 466 places, 624 transitions, 11316 flow [2020-10-16 03:11:44,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 456 places, 624 transitions, 10749 flow, removed 225 selfloop flow, removed 10 redundant places. [2020-10-16 03:11:44,374 INFO L241 Difference]: Finished difference. Result has 471 places, 483 transitions, 7846 flow [2020-10-16 03:11:44,375 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=6213, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=253, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=7846, PETRI_PLACES=471, PETRI_TRANSITIONS=483} [2020-10-16 03:11:44,375 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 410 predicate places. [2020-10-16 03:11:44,375 INFO L481 AbstractCegarLoop]: Abstraction has has 471 places, 483 transitions, 7846 flow [2020-10-16 03:11:44,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-16 03:11:44,375 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:11:44,375 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] [2020-10-16 03:11:44,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-16 03:11:44,376 INFO L429 AbstractCegarLoop]: === Iteration 26 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:11:44,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:11:44,376 INFO L82 PathProgramCache]: Analyzing trace with hash -70815167, now seen corresponding path program 11 times [2020-10-16 03:11:44,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:11:44,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530667558] [2020-10-16 03:11:44,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:11:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:11:44,671 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 35 [2020-10-16 03:11:45,400 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 51 [2020-10-16 03:11:45,561 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 34 [2020-10-16 03:11:46,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:11:46,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530667558] [2020-10-16 03:11:46,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:11:46,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-10-16 03:11:46,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404275682] [2020-10-16 03:11:46,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-16 03:11:46,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:11:46,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-16 03:11:46,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2020-10-16 03:11:46,201 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 448 [2020-10-16 03:11:46,202 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 483 transitions, 7846 flow. Second operand 21 states. [2020-10-16 03:11:46,202 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:11:46,202 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 448 [2020-10-16 03:11:46,202 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:11:53,584 INFO L129 PetriNetUnfolder]: 3830/7614 cut-off events. [2020-10-16 03:11:53,584 INFO L130 PetriNetUnfolder]: For 931161/931225 co-relation queries the response was YES. [2020-10-16 03:11:53,718 INFO L80 FinitePrefix]: Finished finitePrefix Result has 70103 conditions, 7614 events. 3830/7614 cut-off events. For 931161/931225 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 52228 event pairs, 1050 based on Foata normal form. 63/7207 useless extension candidates. Maximal degree in co-relation 69911. Up to 5077 conditions per place. [2020-10-16 03:11:53,741 INFO L132 encePairwiseOnDemand]: 424/448 looper letters, 463 selfloop transitions, 125 changer transitions 41/636 dead transitions. [2020-10-16 03:11:53,741 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 636 transitions, 11895 flow [2020-10-16 03:11:53,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-16 03:11:53,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-16 03:11:53,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 5409 transitions. [2020-10-16 03:11:53,747 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.4163331280788177 [2020-10-16 03:11:53,747 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 5409 transitions. [2020-10-16 03:11:53,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 5409 transitions. [2020-10-16 03:11:53,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:11:53,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 5409 transitions. [2020-10-16 03:11:53,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 30 states. [2020-10-16 03:11:53,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 30 states. [2020-10-16 03:11:53,758 INFO L81 ComplementDD]: Finished complementDD. Result 30 states. [2020-10-16 03:11:53,759 INFO L185 Difference]: Start difference. First operand has 471 places, 483 transitions, 7846 flow. Second operand 29 states and 5409 transitions. [2020-10-16 03:11:53,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 636 transitions, 11895 flow [2020-10-16 03:11:55,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 636 transitions, 10981 flow, removed 335 selfloop flow, removed 18 redundant places. [2020-10-16 03:11:55,835 INFO L241 Difference]: Finished difference. Result has 496 places, 516 transitions, 8316 flow [2020-10-16 03:11:55,835 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=7208, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=8316, PETRI_PLACES=496, PETRI_TRANSITIONS=516} [2020-10-16 03:11:55,836 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 435 predicate places. [2020-10-16 03:11:55,836 INFO L481 AbstractCegarLoop]: Abstraction has has 496 places, 516 transitions, 8316 flow [2020-10-16 03:11:55,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-16 03:11:55,836 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:11:55,836 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] [2020-10-16 03:11:55,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-16 03:11:55,837 INFO L429 AbstractCegarLoop]: === Iteration 27 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:11:55,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:11:55,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1831829465, now seen corresponding path program 12 times [2020-10-16 03:11:55,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:11:55,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40603209] [2020-10-16 03:11:55,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:11:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 03:11:56,239 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 43 [2020-10-16 03:11:56,385 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 37 [2020-10-16 03:11:56,542 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 39 [2020-10-16 03:11:57,101 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 46 [2020-10-16 03:11:57,551 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 40 [2020-10-16 03:11:58,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 03:11:58,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40603209] [2020-10-16 03:11:58,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 03:11:58,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-10-16 03:11:58,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048497052] [2020-10-16 03:11:58,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-16 03:11:58,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 03:11:58,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-16 03:11:58,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2020-10-16 03:11:58,031 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 448 [2020-10-16 03:11:58,031 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 516 transitions, 8316 flow. Second operand 20 states. [2020-10-16 03:11:58,032 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 03:11:58,032 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 448 [2020-10-16 03:11:58,032 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 03:11:58,334 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2020-10-16 03:11:59,007 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2020-10-16 03:11:59,999 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2020-10-16 03:12:00,153 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2020-10-16 03:12:00,689 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 55 [2020-10-16 03:12:00,858 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2020-10-16 03:12:02,690 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-10-16 03:12:03,113 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-16 03:12:06,182 INFO L129 PetriNetUnfolder]: 4322/8589 cut-off events. [2020-10-16 03:12:06,182 INFO L130 PetriNetUnfolder]: For 1037805/1037817 co-relation queries the response was YES. [2020-10-16 03:12:06,946 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77457 conditions, 8589 events. 4322/8589 cut-off events. For 1037805/1037817 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 60867 event pairs, 677 based on Foata normal form. 70/8120 useless extension candidates. Maximal degree in co-relation 77250. Up to 3683 conditions per place. [2020-10-16 03:12:06,973 INFO L132 encePairwiseOnDemand]: 425/448 looper letters, 342 selfloop transitions, 384 changer transitions 34/767 dead transitions. [2020-10-16 03:12:06,973 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 767 transitions, 14805 flow [2020-10-16 03:12:06,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-16 03:12:06,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-16 03:12:06,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 7344 transitions. [2020-10-16 03:12:06,978 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.42032967032967034 [2020-10-16 03:12:06,978 INFO L72 ComplementDD]: Start complementDD. Operand 39 states and 7344 transitions. [2020-10-16 03:12:06,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 7344 transitions. [2020-10-16 03:12:06,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 03:12:06,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 39 states and 7344 transitions. [2020-10-16 03:12:06,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 40 states. [2020-10-16 03:12:06,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 40 states. [2020-10-16 03:12:06,989 INFO L81 ComplementDD]: Finished complementDD. Result 40 states. [2020-10-16 03:12:06,989 INFO L185 Difference]: Start difference. First operand has 496 places, 516 transitions, 8316 flow. Second operand 39 states and 7344 transitions. [2020-10-16 03:12:06,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 767 transitions, 14805 flow [2020-10-16 03:12:09,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 524 places, 767 transitions, 14140 flow, removed 296 selfloop flow, removed 7 redundant places. [2020-10-16 03:12:09,187 INFO L241 Difference]: Finished difference. Result has 536 places, 620 transitions, 11139 flow [2020-10-16 03:12:09,188 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=7891, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=516, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=302, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=39, PETRI_FLOW=11139, PETRI_PLACES=536, PETRI_TRANSITIONS=620} [2020-10-16 03:12:09,188 INFO L342 CegarLoopForPetriNet]: 61 programPoint places, 475 predicate places. [2020-10-16 03:12:09,188 INFO L481 AbstractCegarLoop]: Abstraction has has 536 places, 620 transitions, 11139 flow [2020-10-16 03:12:09,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-16 03:12:09,188 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 03:12:09,188 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] [2020-10-16 03:12:09,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-16 03:12:09,188 INFO L429 AbstractCegarLoop]: === Iteration 28 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 03:12:09,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 03:12:09,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1719731266, now seen corresponding path program 1 times [2020-10-16 03:12:09,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 03:12:09,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404260089] [2020-10-16 03:12:09,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 03:12:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2020-10-16 03:23:16,901 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 03:23:16,906 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 03:23:16,923 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 03:23:16,925 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 03:23:16,934 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 03:23:16,936 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 03:23:16,938 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 03:23:16,941 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 03:23:16,943 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 03:23:16,943 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 03:23:16,944 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 03:23:16,949 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 03:23:16,949 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 03:23:16,950 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 03:23:16,950 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 03:23:16,951 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2020-10-16 03:23:16,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-16 03:23:16,959 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-16 03:23:16,963 WARN L235 ceAbstractionStarter]: Timeout [2020-10-16 03:23:16,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 03:23:16 BasicIcfg [2020-10-16 03:23:16,963 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 03:23:16,965 INFO L168 Benchmark]: Toolchain (without parser) took 790346.31 ms. Allocated memory was 250.1 MB in the beginning and 7.3 GB in the end (delta: 7.0 GB). Free memory was 205.0 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 7.2 GB. Max. memory is 14.2 GB. [2020-10-16 03:23:16,965 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 03:23:16,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 872.93 ms. Allocated memory was 250.1 MB in the beginning and 310.9 MB in the end (delta: 60.8 MB). Free memory was 205.0 MB in the beginning and 238.8 MB in the end (delta: -33.8 MB). Peak memory consumption was 37.1 MB. Max. memory is 14.2 GB. [2020-10-16 03:23:16,974 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.33 ms. Allocated memory is still 310.9 MB. Free memory was 236.3 MB in the beginning and 233.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 03:23:16,974 INFO L168 Benchmark]: Boogie Preprocessor took 44.27 ms. Allocated memory is still 310.9 MB. Free memory was 233.8 MB in the beginning and 231.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 03:23:16,974 INFO L168 Benchmark]: RCFGBuilder took 720.85 ms. Allocated memory is still 310.9 MB. Free memory was 231.3 MB in the beginning and 183.8 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 14.2 GB. [2020-10-16 03:23:16,975 INFO L168 Benchmark]: TraceAbstraction took 788609.81 ms. Allocated memory was 310.9 MB in the beginning and 7.3 GB in the end (delta: 6.9 GB). Free memory was 183.8 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 7.1 GB. Max. memory is 14.2 GB. [2020-10-16 03:23:16,977 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 872.93 ms. Allocated memory was 250.1 MB in the beginning and 310.9 MB in the end (delta: 60.8 MB). Free memory was 205.0 MB in the beginning and 238.8 MB in the end (delta: -33.8 MB). Peak memory consumption was 37.1 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 92.33 ms. Allocated memory is still 310.9 MB. Free memory was 236.3 MB in the beginning and 233.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 44.27 ms. Allocated memory is still 310.9 MB. Free memory was 233.8 MB in the beginning and 231.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 720.85 ms. Allocated memory is still 310.9 MB. Free memory was 231.3 MB in the beginning and 183.8 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 14.2 GB. * TraceAbstraction took 788609.81 ms. Allocated memory was 310.9 MB in the beginning and 7.3 GB in the end (delta: 6.9 GB). Free memory was 183.8 MB in the beginning and 1.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 7.1 GB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 10135 VarBasedMoverChecksPositive, 229 VarBasedMoverChecksNegative, 38 SemBasedMoverChecksPositive, 191 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 1.4s, 825 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 9.9s, 223 PlacesBefore, 61 PlacesAfterwards, 232 TransitionsBefore, 65 TransitionsAfterwards, 14896 CoEnabledTransitionPairs, 8 FixpointIterations, 56 TrivialSequentialCompositions, 115 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 24 ConcurrentYvCompositions, 5 ChoiceCompositions, 204 TotalNumberOfCompositions, 36538 MoverChecksTotal - TimeoutResultAtElement [Line: 1040]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1040). Cancelled while CegarLoopForPetriNet was analyzing trace of length 40 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 38 interpolants. - TimeoutResultAtElement [Line: 1013]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1013). Cancelled while CegarLoopForPetriNet was analyzing trace of length 40 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 38 interpolants. - TimeoutResultAtElement [Line: 1024]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1024). Cancelled while CegarLoopForPetriNet was analyzing trace of length 40 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 38 interpolants. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 228 locations, 3 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: TIMEOUT, OverallTime: 788.3s, OverallIterations: 28, TraceHistogramMax: 1, AutomataDifference: 80.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.1s, HoareTripleCheckerStatistics: 825 SDtfs, 2282 SDslu, 2623 SDs, 0 SdLazy, 22488 SolverSat, 752 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 679 GetRequests, 41 SyntacticMatches, 41 SemanticMatches, 597 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4048 ImplicationChecksByTransitivity, 44.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11139occurred in iteration=27, 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, 28.5s InterpolantComputationTime, 763 NumberOfCodeBlocks, 763 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 736 ConstructedInterpolants, 0 QuantifiedInterpolants, 848895 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 27 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 could not prove your program: Timeout Completed graceful shutdown