/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 20:42:20,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 20:42:20,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 20:42:20,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 20:42:20,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 20:42:20,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 20:42:20,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 20:42:20,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 20:42:20,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 20:42:20,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 20:42:20,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 20:42:20,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 20:42:20,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 20:42:20,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 20:42:20,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 20:42:20,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 20:42:20,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 20:42:20,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 20:42:20,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 20:42:20,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 20:42:20,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 20:42:20,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 20:42:20,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 20:42:20,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 20:42:20,572 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 20:42:20,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 20:42:20,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 20:42:20,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 20:42:20,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 20:42:20,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 20:42:20,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 20:42:20,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 20:42:20,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 20:42:20,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 20:42:20,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 20:42:20,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 20:42:20,580 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.epf [2021-03-11 20:42:20,600 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 20:42:20,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 20:42:20,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 20:42:20,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 20:42:20,602 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 20:42:20,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 20:42:20,603 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 20:42:20,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 20:42:20,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 20:42:20,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 20:42:20,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 20:42:20,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 20:42:20,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 20:42:20,604 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 20:42:20,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 20:42:20,604 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 20:42:20,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 20:42:20,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 20:42:20,604 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 20:42:20,604 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 20:42:20,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 20:42:20,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 20:42:20,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 20:42:20,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 20:42:20,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 20:42:20,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 20:42:20,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 20:42:20,605 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 20:42:20,605 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 20:42:20,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 20:42:20,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 20:42:20,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 20:42:20,836 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 20:42:20,837 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 20:42:20,837 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-03-11 20:42:20,883 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38062f345/2049cc4af4534d4184f16da519377094/FLAG8f09ce254 [2021-03-11 20:42:21,328 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 20:42:21,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-03-11 20:42:21,344 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38062f345/2049cc4af4534d4184f16da519377094/FLAG8f09ce254 [2021-03-11 20:42:21,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38062f345/2049cc4af4534d4184f16da519377094 [2021-03-11 20:42:21,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 20:42:21,364 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 20:42:21,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 20:42:21,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 20:42:21,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 20:42:21,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 08:42:21" (1/1) ... [2021-03-11 20:42:21,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fa417a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:42:21, skipping insertion in model container [2021-03-11 20:42:21,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 08:42:21" (1/1) ... [2021-03-11 20:42:21,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 20:42:21,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 20:42:21,863 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2021-03-11 20:42:21,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 20:42:21,879 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 20:42:21,903 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2021-03-11 20:42:21,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 20:42:22,084 INFO L208 MainTranslator]: Completed translation [2021-03-11 20:42:22,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:42:22 WrapperNode [2021-03-11 20:42:22,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 20:42:22,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 20:42:22,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 20:42:22,086 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 20:42:22,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:42:22" (1/1) ... [2021-03-11 20:42:22,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:42:22" (1/1) ... [2021-03-11 20:42:22,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 20:42:22,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 20:42:22,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 20:42:22,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 20:42:22,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:42:22" (1/1) ... [2021-03-11 20:42:22,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:42:22" (1/1) ... [2021-03-11 20:42:22,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:42:22" (1/1) ... [2021-03-11 20:42:22,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:42:22" (1/1) ... [2021-03-11 20:42:22,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:42:22" (1/1) ... [2021-03-11 20:42:22,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:42:22" (1/1) ... [2021-03-11 20:42:22,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:42:22" (1/1) ... [2021-03-11 20:42:22,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 20:42:22,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 20:42:22,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 20:42:22,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 20:42:22,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:42:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 20:42:22,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 20:42:22,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 20:42:22,226 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-11 20:42:22,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-11 20:42:22,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 20:42:22,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 20:42:22,227 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-03-11 20:42:22,227 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-03-11 20:42:22,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 20:42:22,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 20:42:22,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 20:42:22,228 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 20:42:22,551 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 20:42:22,551 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-03-11 20:42:22,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 08:42:22 BoogieIcfgContainer [2021-03-11 20:42:22,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 20:42:22,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 20:42:22,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 20:42:22,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 20:42:22,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 08:42:21" (1/3) ... [2021-03-11 20:42:22,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f0622b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 08:42:22, skipping insertion in model container [2021-03-11 20:42:22,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:42:22" (2/3) ... [2021-03-11 20:42:22,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f0622b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 08:42:22, skipping insertion in model container [2021-03-11 20:42:22,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 08:42:22" (3/3) ... [2021-03-11 20:42:22,556 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2021-03-11 20:42:22,559 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 20:42:22,562 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-03-11 20:42:22,562 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 20:42:22,580 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,581 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,581 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,581 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,581 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,581 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,581 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,581 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,581 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,581 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,581 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,581 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,582 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,582 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,582 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,582 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,582 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,582 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,582 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,582 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,582 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,582 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,583 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,583 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,583 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,583 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,583 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,583 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,583 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,583 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,583 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,583 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,583 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,584 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,584 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,584 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,584 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,584 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,584 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,584 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,584 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,584 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,585 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,585 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,585 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,585 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,585 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,585 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,585 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,585 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,585 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,585 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,585 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,586 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,586 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,586 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,586 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,586 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,586 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,586 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,586 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,586 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,586 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,586 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,586 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,587 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,587 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,587 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,587 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,587 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,587 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,587 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,587 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,587 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,587 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,587 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,587 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,588 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,588 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,588 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,588 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,588 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,588 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,588 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,588 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,588 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,588 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,588 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,589 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,589 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,589 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,589 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,589 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,589 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,589 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,589 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,589 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,589 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,589 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,589 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,590 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,590 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,590 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,590 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,590 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,590 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,590 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,590 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,590 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,590 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,591 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,591 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,591 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,591 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,591 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,591 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,592 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,592 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,592 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,592 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,592 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,593 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,593 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,593 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,593 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,593 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,596 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,596 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,596 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,596 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,596 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,596 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,596 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,596 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,596 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,596 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:42:22,601 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-11 20:42:22,614 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-03-11 20:42:22,630 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 20:42:22,630 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 20:42:22,631 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 20:42:22,631 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 20:42:22,631 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 20:42:22,631 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 20:42:22,631 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 20:42:22,631 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 20:42:22,639 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 160 places, 164 transitions, 350 flow [2021-03-11 20:42:22,676 INFO L129 PetriNetUnfolder]: 11/204 cut-off events. [2021-03-11 20:42:22,676 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-11 20:42:22,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 204 events. 11/204 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 407 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 115. Up to 4 conditions per place. [2021-03-11 20:42:22,680 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 164 transitions, 350 flow [2021-03-11 20:42:22,683 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 152 transitions, 322 flow [2021-03-11 20:42:22,685 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 20:42:22,691 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 152 transitions, 322 flow [2021-03-11 20:42:22,692 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 152 transitions, 322 flow [2021-03-11 20:42:22,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 150 places, 152 transitions, 322 flow [2021-03-11 20:42:22,741 INFO L129 PetriNetUnfolder]: 8/185 cut-off events. [2021-03-11 20:42:22,741 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-11 20:42:22,742 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 185 events. 8/185 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 343 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 105. Up to 4 conditions per place. [2021-03-11 20:42:22,744 INFO L116 LiptonReduction]: Number of co-enabled transitions 2288 [2021-03-11 20:42:53,849 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2021-03-11 20:43:16,673 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2021-03-11 20:43:16,895 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75 [2021-03-11 20:43:17,697 WARN L205 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 146 [2021-03-11 20:43:17,943 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2021-03-11 20:43:18,544 WARN L205 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 146 [2021-03-11 20:43:18,802 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2021-03-11 20:43:19,650 WARN L205 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 151 [2021-03-11 20:43:19,930 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-03-11 20:43:20,498 WARN L205 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 151 [2021-03-11 20:43:20,765 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-03-11 20:43:21,413 WARN L205 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 166 [2021-03-11 20:43:21,747 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-03-11 20:43:22,395 WARN L205 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 173 [2021-03-11 20:43:22,724 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-03-11 20:43:24,709 WARN L205 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 178 DAG size of output: 176 [2021-03-11 20:43:25,519 WARN L205 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-03-11 20:43:27,288 WARN L205 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 187 DAG size of output: 183 [2021-03-11 20:43:28,150 WARN L205 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-03-11 20:43:28,165 INFO L131 LiptonReduction]: Checked pairs total: 5924 [2021-03-11 20:43:28,165 INFO L133 LiptonReduction]: Total number of compositions: 162 [2021-03-11 20:43:28,166 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 65483 [2021-03-11 20:43:28,171 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-11 20:43:28,171 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:43:28,171 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:28,171 INFO L255 CegarLoopForPetriNet]: trace histogram [1] [2021-03-11 20:43:28,172 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:28,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:28,174 INFO L82 PathProgramCache]: Analyzing trace with hash 573, now seen corresponding path program 1 times [2021-03-11 20:43:28,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:28,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979275213] [2021-03-11 20:43:28,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:28,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:28,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979275213] [2021-03-11 20:43:28,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:28,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2021-03-11 20:43:28,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526304851] [2021-03-11 20:43:28,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-11 20:43:28,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:28,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-11 20:43:28,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-11 20:43:28,359 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 326 [2021-03-11 20:43:28,363 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 34 transitions, 86 flow. Second operand has 2 states, 2 states have (on average 284.5) internal successors, (569), 2 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:28,363 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:28,363 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 326 [2021-03-11 20:43:28,364 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:28,375 INFO L129 PetriNetUnfolder]: 2/40 cut-off events. [2021-03-11 20:43:28,376 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-11 20:43:28,376 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 40 events. 2/40 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 74 event pairs, 0 based on Foata normal form. 1/34 useless extension candidates. Maximal degree in co-relation 48. Up to 3 conditions per place. [2021-03-11 20:43:28,376 INFO L132 encePairwiseOnDemand]: 324/326 looper letters, 0 selfloop transitions, 0 changer transitions 0/32 dead transitions. [2021-03-11 20:43:28,376 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 32 transitions, 82 flow [2021-03-11 20:43:28,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-11 20:43:28,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-03-11 20:43:28,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 570 transitions. [2021-03-11 20:43:28,389 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8742331288343558 [2021-03-11 20:43:28,390 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 570 transitions. [2021-03-11 20:43:28,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 570 transitions. [2021-03-11 20:43:28,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:28,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 570 transitions. [2021-03-11 20:43:28,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 285.0) internal successors, (570), 2 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:28,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:28,401 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:28,402 INFO L185 Difference]: Start difference. First operand has 37 places, 34 transitions, 86 flow. Second operand 2 states and 570 transitions. [2021-03-11 20:43:28,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 32 transitions, 82 flow [2021-03-11 20:43:28,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 32 transitions, 70 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-11 20:43:28,405 INFO L241 Difference]: Finished difference. Result has 32 places, 32 transitions, 70 flow [2021-03-11 20:43:28,406 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=70, PETRI_PLACES=32, PETRI_TRANSITIONS=32} [2021-03-11 20:43:28,406 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, -5 predicate places. [2021-03-11 20:43:28,407 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 32 transitions, 70 flow [2021-03-11 20:43:28,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 284.5) internal successors, (569), 2 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:28,407 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:28,407 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-11 20:43:28,407 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 20:43:28,407 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:28,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:28,408 INFO L82 PathProgramCache]: Analyzing trace with hash 542597373, now seen corresponding path program 1 times [2021-03-11 20:43:28,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:28,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183428985] [2021-03-11 20:43:28,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:28,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:28,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:43:28,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:28,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:43:28,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:28,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183428985] [2021-03-11 20:43:28,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:28,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 20:43:28,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216517957] [2021-03-11 20:43:28,511 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 20:43:28,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:28,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 20:43:28,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 20:43:28,513 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 326 [2021-03-11 20:43:28,513 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 32 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 195.66666666666666) internal successors, (587), 3 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:28,513 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:28,513 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 326 [2021-03-11 20:43:28,513 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:28,624 INFO L129 PetriNetUnfolder]: 173/388 cut-off events. [2021-03-11 20:43:28,624 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:43:28,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 719 conditions, 388 events. 173/388 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1983 event pairs, 103 based on Foata normal form. 17/380 useless extension candidates. Maximal degree in co-relation 716. Up to 275 conditions per place. [2021-03-11 20:43:28,628 INFO L132 encePairwiseOnDemand]: 319/326 looper letters, 21 selfloop transitions, 6 changer transitions 0/39 dead transitions. [2021-03-11 20:43:28,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 39 transitions, 138 flow [2021-03-11 20:43:28,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 20:43:28,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 20:43:28,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 610 transitions. [2021-03-11 20:43:28,630 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.623721881390593 [2021-03-11 20:43:28,631 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 610 transitions. [2021-03-11 20:43:28,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 610 transitions. [2021-03-11 20:43:28,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:28,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 610 transitions. [2021-03-11 20:43:28,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:28,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:28,635 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:28,635 INFO L185 Difference]: Start difference. First operand has 32 places, 32 transitions, 70 flow. Second operand 3 states and 610 transitions. [2021-03-11 20:43:28,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 39 transitions, 138 flow [2021-03-11 20:43:28,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 39 transitions, 138 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-11 20:43:28,636 INFO L241 Difference]: Finished difference. Result has 35 places, 36 transitions, 106 flow [2021-03-11 20:43:28,636 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=35, PETRI_TRANSITIONS=36} [2021-03-11 20:43:28,637 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places. [2021-03-11 20:43:28,637 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 36 transitions, 106 flow [2021-03-11 20:43:28,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 195.66666666666666) internal successors, (587), 3 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:28,637 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:28,637 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-11 20:43:28,637 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 20:43:28,637 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:28,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:28,638 INFO L82 PathProgramCache]: Analyzing trace with hash 542597337, now seen corresponding path program 1 times [2021-03-11 20:43:28,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:28,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647218612] [2021-03-11 20:43:28,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:28,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:28,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:43:28,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:28,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:43:28,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:28,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:43:28,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:28,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:43:28,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:28,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647218612] [2021-03-11 20:43:28,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:28,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 20:43:28,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085238200] [2021-03-11 20:43:28,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 20:43:28,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:28,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 20:43:28,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 20:43:28,725 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 326 [2021-03-11 20:43:28,726 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 36 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 187.25) internal successors, (749), 4 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:28,726 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:28,726 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 326 [2021-03-11 20:43:28,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:28,853 INFO L129 PetriNetUnfolder]: 290/581 cut-off events. [2021-03-11 20:43:28,853 INFO L130 PetriNetUnfolder]: For 169/169 co-relation queries the response was YES. [2021-03-11 20:43:28,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1474 conditions, 581 events. 290/581 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2990 event pairs, 125 based on Foata normal form. 32/589 useless extension candidates. Maximal degree in co-relation 1469. Up to 419 conditions per place. [2021-03-11 20:43:28,856 INFO L132 encePairwiseOnDemand]: 317/326 looper letters, 33 selfloop transitions, 15 changer transitions 2/61 dead transitions. [2021-03-11 20:43:28,856 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 61 transitions, 301 flow [2021-03-11 20:43:28,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 20:43:28,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-11 20:43:28,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 974 transitions. [2021-03-11 20:43:28,859 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5975460122699386 [2021-03-11 20:43:28,859 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 974 transitions. [2021-03-11 20:43:28,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 974 transitions. [2021-03-11 20:43:28,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:28,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 974 transitions. [2021-03-11 20:43:28,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 194.8) internal successors, (974), 5 states have internal predecessors, (974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:28,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 326.0) internal successors, (1956), 6 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:28,863 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 326.0) internal successors, (1956), 6 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:28,864 INFO L185 Difference]: Start difference. First operand has 35 places, 36 transitions, 106 flow. Second operand 5 states and 974 transitions. [2021-03-11 20:43:28,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 61 transitions, 301 flow [2021-03-11 20:43:28,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 61 transitions, 286 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 20:43:28,866 INFO L241 Difference]: Finished difference. Result has 41 places, 48 transitions, 222 flow [2021-03-11 20:43:28,866 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=222, PETRI_PLACES=41, PETRI_TRANSITIONS=48} [2021-03-11 20:43:28,867 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 4 predicate places. [2021-03-11 20:43:28,867 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 48 transitions, 222 flow [2021-03-11 20:43:28,867 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 187.25) internal successors, (749), 4 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:28,867 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:28,867 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:43:28,867 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 20:43:28,867 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:28,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:28,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1846942722, now seen corresponding path program 1 times [2021-03-11 20:43:28,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:28,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604117959] [2021-03-11 20:43:28,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:28,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:28,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:43:28,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:28,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:43:28,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:28,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:43:28,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:28,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604117959] [2021-03-11 20:43:28,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:28,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 20:43:28,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321390387] [2021-03-11 20:43:28,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 20:43:28,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:28,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 20:43:28,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 20:43:28,906 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 326 [2021-03-11 20:43:28,907 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 48 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 257.0) internal successors, (771), 3 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:28,907 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:28,907 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 326 [2021-03-11 20:43:28,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:28,923 INFO L129 PetriNetUnfolder]: 5/45 cut-off events. [2021-03-11 20:43:28,923 INFO L130 PetriNetUnfolder]: For 44/60 co-relation queries the response was YES. [2021-03-11 20:43:28,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 45 events. 5/45 cut-off events. For 44/60 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 109 event pairs, 4 based on Foata normal form. 15/58 useless extension candidates. Maximal degree in co-relation 74. Up to 13 conditions per place. [2021-03-11 20:43:28,924 INFO L132 encePairwiseOnDemand]: 324/326 looper letters, 2 selfloop transitions, 1 changer transitions 0/25 dead transitions. [2021-03-11 20:43:28,924 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 25 transitions, 78 flow [2021-03-11 20:43:28,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 20:43:28,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 20:43:28,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 772 transitions. [2021-03-11 20:43:28,925 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7893660531697342 [2021-03-11 20:43:28,925 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 772 transitions. [2021-03-11 20:43:28,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 772 transitions. [2021-03-11 20:43:28,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:28,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 772 transitions. [2021-03-11 20:43:28,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:28,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:28,929 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:28,929 INFO L185 Difference]: Start difference. First operand has 41 places, 48 transitions, 222 flow. Second operand 3 states and 772 transitions. [2021-03-11 20:43:28,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 25 transitions, 78 flow [2021-03-11 20:43:28,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 25 transitions, 70 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-03-11 20:43:28,930 INFO L241 Difference]: Finished difference. Result has 33 places, 25 transitions, 66 flow [2021-03-11 20:43:28,930 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=33, PETRI_TRANSITIONS=25} [2021-03-11 20:43:28,930 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, -4 predicate places. [2021-03-11 20:43:28,930 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 25 transitions, 66 flow [2021-03-11 20:43:28,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 257.0) internal successors, (771), 3 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:28,931 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:28,931 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] [2021-03-11 20:43:28,931 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 20:43:28,931 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:28,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:28,931 INFO L82 PathProgramCache]: Analyzing trace with hash 160296141, now seen corresponding path program 1 times [2021-03-11 20:43:28,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:28,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957100230] [2021-03-11 20:43:28,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:29,066 INFO L142 QuantifierPusher]: treesize reduction 15, result has 54.5 percent of original size [2021-03-11 20:43:29,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 20:43:29,076 INFO L142 QuantifierPusher]: treesize reduction 27, result has 35.7 percent of original size [2021-03-11 20:43:29,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 20:43:29,087 INFO L142 QuantifierPusher]: treesize reduction 27, result has 47.1 percent of original size [2021-03-11 20:43:29,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 20:43:29,098 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-11 20:43:29,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:43:29,107 INFO L142 QuantifierPusher]: treesize reduction 27, result has 47.1 percent of original size [2021-03-11 20:43:29,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 20:43:29,108 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-11 20:43:29,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 20:43:29,119 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:29,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:29,129 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:29,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:29,132 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:29,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:29,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:29,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957100230] [2021-03-11 20:43:29,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:29,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 20:43:29,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131160345] [2021-03-11 20:43:29,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-11 20:43:29,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:29,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-11 20:43:29,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-03-11 20:43:29,144 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 326 [2021-03-11 20:43:29,145 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 25 transitions, 66 flow. Second operand has 8 states, 8 states have (on average 161.125) internal successors, (1289), 8 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:29,145 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:29,145 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 326 [2021-03-11 20:43:29,145 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:29,350 INFO L129 PetriNetUnfolder]: 129/315 cut-off events. [2021-03-11 20:43:29,350 INFO L130 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2021-03-11 20:43:29,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 678 conditions, 315 events. 129/315 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1481 event pairs, 20 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 670. Up to 92 conditions per place. [2021-03-11 20:43:29,353 INFO L132 encePairwiseOnDemand]: 317/326 looper letters, 38 selfloop transitions, 11 changer transitions 0/56 dead transitions. [2021-03-11 20:43:29,353 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 56 transitions, 242 flow [2021-03-11 20:43:29,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 20:43:29,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 20:43:29,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1163 transitions. [2021-03-11 20:43:29,356 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5096406660823839 [2021-03-11 20:43:29,356 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1163 transitions. [2021-03-11 20:43:29,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1163 transitions. [2021-03-11 20:43:29,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:29,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1163 transitions. [2021-03-11 20:43:29,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 166.14285714285714) internal successors, (1163), 7 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:29,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 326.0) internal successors, (2608), 8 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:29,362 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 326.0) internal successors, (2608), 8 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:29,362 INFO L185 Difference]: Start difference. First operand has 33 places, 25 transitions, 66 flow. Second operand 7 states and 1163 transitions. [2021-03-11 20:43:29,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 56 transitions, 242 flow [2021-03-11 20:43:29,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 56 transitions, 241 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 20:43:29,364 INFO L241 Difference]: Finished difference. Result has 40 places, 31 transitions, 122 flow [2021-03-11 20:43:29,364 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=122, PETRI_PLACES=40, PETRI_TRANSITIONS=31} [2021-03-11 20:43:29,364 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 3 predicate places. [2021-03-11 20:43:29,364 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 31 transitions, 122 flow [2021-03-11 20:43:29,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 161.125) internal successors, (1289), 8 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:29,365 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:29,365 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] [2021-03-11 20:43:29,365 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 20:43:29,365 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:29,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:29,366 INFO L82 PathProgramCache]: Analyzing trace with hash -2101937711, now seen corresponding path program 2 times [2021-03-11 20:43:29,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:29,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392275904] [2021-03-11 20:43:29,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:29,530 INFO L142 QuantifierPusher]: treesize reduction 18, result has 50.0 percent of original size [2021-03-11 20:43:29,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 20:43:29,540 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-11 20:43:29,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 20:43:29,554 INFO L142 QuantifierPusher]: treesize reduction 28, result has 54.8 percent of original size [2021-03-11 20:43:29,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 20:43:29,581 INFO L142 QuantifierPusher]: treesize reduction 28, result has 60.6 percent of original size [2021-03-11 20:43:29,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:43:29,614 INFO L142 QuantifierPusher]: treesize reduction 28, result has 64.1 percent of original size [2021-03-11 20:43:29,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:43:29,624 INFO L142 QuantifierPusher]: treesize reduction 35, result has 55.7 percent of original size [2021-03-11 20:43:29,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-11 20:43:29,632 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-11 20:43:29,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 20:43:29,657 INFO L142 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size [2021-03-11 20:43:29,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 20:43:29,659 INFO L142 QuantifierPusher]: treesize reduction 16, result has 69.2 percent of original size [2021-03-11 20:43:29,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 20:43:29,685 INFO L142 QuantifierPusher]: treesize reduction 16, result has 71.9 percent of original size [2021-03-11 20:43:29,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:43:29,727 INFO L142 QuantifierPusher]: treesize reduction 14, result has 77.4 percent of original size [2021-03-11 20:43:29,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 20:43:29,754 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-11 20:43:29,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 20:43:29,777 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:29,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:29,793 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:29,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:29,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:29,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392275904] [2021-03-11 20:43:29,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:29,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 20:43:29,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182496970] [2021-03-11 20:43:29,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 20:43:29,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:29,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 20:43:29,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-03-11 20:43:29,810 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 326 [2021-03-11 20:43:29,812 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 122 flow. Second operand has 13 states, 13 states have (on average 150.46153846153845) internal successors, (1956), 13 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:29,812 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:29,812 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 326 [2021-03-11 20:43:29,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:30,426 INFO L129 PetriNetUnfolder]: 280/682 cut-off events. [2021-03-11 20:43:30,426 INFO L130 PetriNetUnfolder]: For 392/396 co-relation queries the response was YES. [2021-03-11 20:43:30,427 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1798 conditions, 682 events. 280/682 cut-off events. For 392/396 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3986 event pairs, 36 based on Foata normal form. 4/684 useless extension candidates. Maximal degree in co-relation 1788. Up to 170 conditions per place. [2021-03-11 20:43:30,429 INFO L132 encePairwiseOnDemand]: 315/326 looper letters, 70 selfloop transitions, 23 changer transitions 0/98 dead transitions. [2021-03-11 20:43:30,429 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 98 transitions, 554 flow [2021-03-11 20:43:30,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-11 20:43:30,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-11 20:43:30,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1576 transitions. [2021-03-11 20:43:30,432 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4834355828220859 [2021-03-11 20:43:30,432 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1576 transitions. [2021-03-11 20:43:30,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1576 transitions. [2021-03-11 20:43:30,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:30,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1576 transitions. [2021-03-11 20:43:30,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 157.6) internal successors, (1576), 10 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:30,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 326.0) internal successors, (3586), 11 states have internal predecessors, (3586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:30,440 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 326.0) internal successors, (3586), 11 states have internal predecessors, (3586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:30,440 INFO L185 Difference]: Start difference. First operand has 40 places, 31 transitions, 122 flow. Second operand 10 states and 1576 transitions. [2021-03-11 20:43:30,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 98 transitions, 554 flow [2021-03-11 20:43:30,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 98 transitions, 549 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 20:43:30,443 INFO L241 Difference]: Finished difference. Result has 52 places, 48 transitions, 308 flow [2021-03-11 20:43:30,443 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=308, PETRI_PLACES=52, PETRI_TRANSITIONS=48} [2021-03-11 20:43:30,444 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 15 predicate places. [2021-03-11 20:43:30,444 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 48 transitions, 308 flow [2021-03-11 20:43:30,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 150.46153846153845) internal successors, (1956), 13 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:30,445 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:30,445 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] [2021-03-11 20:43:30,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 20:43:30,445 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:30,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:30,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1680922598, now seen corresponding path program 1 times [2021-03-11 20:43:30,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:30,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294774667] [2021-03-11 20:43:30,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:30,613 INFO L142 QuantifierPusher]: treesize reduction 15, result has 68.8 percent of original size [2021-03-11 20:43:30,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:43:30,625 INFO L142 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size [2021-03-11 20:43:30,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 20:43:30,637 INFO L142 QuantifierPusher]: treesize reduction 46, result has 45.2 percent of original size [2021-03-11 20:43:30,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:43:30,654 INFO L142 QuantifierPusher]: treesize reduction 46, result has 41.8 percent of original size [2021-03-11 20:43:30,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:43:30,661 INFO L142 QuantifierPusher]: treesize reduction 46, result has 37.0 percent of original size [2021-03-11 20:43:30,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:43:30,679 INFO L142 QuantifierPusher]: treesize reduction 46, result has 47.7 percent of original size [2021-03-11 20:43:30,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:43:30,699 INFO L142 QuantifierPusher]: treesize reduction 15, result has 68.1 percent of original size [2021-03-11 20:43:30,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:43:30,718 INFO L142 QuantifierPusher]: treesize reduction 15, result has 67.4 percent of original size [2021-03-11 20:43:30,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:43:30,735 INFO L142 QuantifierPusher]: treesize reduction 29, result has 67.8 percent of original size [2021-03-11 20:43:30,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 20:43:30,779 INFO L142 QuantifierPusher]: treesize reduction 29, result has 63.7 percent of original size [2021-03-11 20:43:30,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 20:43:30,794 INFO L142 QuantifierPusher]: treesize reduction 48, result has 50.5 percent of original size [2021-03-11 20:43:30,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 20:43:30,836 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.2 percent of original size [2021-03-11 20:43:30,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:43:30,873 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:30,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:30,889 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:30,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:30,891 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:30,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:30,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:30,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294774667] [2021-03-11 20:43:30,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:30,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 20:43:30,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5558074] [2021-03-11 20:43:30,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-11 20:43:30,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:30,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-11 20:43:30,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-03-11 20:43:30,909 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 326 [2021-03-11 20:43:30,910 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 48 transitions, 308 flow. Second operand has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:30,911 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:30,911 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 326 [2021-03-11 20:43:30,911 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:31,743 INFO L129 PetriNetUnfolder]: 382/941 cut-off events. [2021-03-11 20:43:31,743 INFO L130 PetriNetUnfolder]: For 1557/1563 co-relation queries the response was YES. [2021-03-11 20:43:31,745 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2935 conditions, 941 events. 382/941 cut-off events. For 1557/1563 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 6150 event pairs, 110 based on Foata normal form. 3/936 useless extension candidates. Maximal degree in co-relation 2920. Up to 547 conditions per place. [2021-03-11 20:43:31,748 INFO L132 encePairwiseOnDemand]: 312/326 looper letters, 83 selfloop transitions, 23 changer transitions 18/129 dead transitions. [2021-03-11 20:43:31,748 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 129 transitions, 994 flow [2021-03-11 20:43:31,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 20:43:31,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 20:43:31,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1861 transitions. [2021-03-11 20:43:31,753 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4757157464212679 [2021-03-11 20:43:31,753 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1861 transitions. [2021-03-11 20:43:31,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1861 transitions. [2021-03-11 20:43:31,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:31,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1861 transitions. [2021-03-11 20:43:31,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 155.08333333333334) internal successors, (1861), 12 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:31,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 326.0) internal successors, (4238), 13 states have internal predecessors, (4238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:31,762 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 326.0) internal successors, (4238), 13 states have internal predecessors, (4238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:31,762 INFO L185 Difference]: Start difference. First operand has 52 places, 48 transitions, 308 flow. Second operand 12 states and 1861 transitions. [2021-03-11 20:43:31,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 129 transitions, 994 flow [2021-03-11 20:43:31,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 129 transitions, 985 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-11 20:43:31,767 INFO L241 Difference]: Finished difference. Result has 70 places, 69 transitions, 578 flow [2021-03-11 20:43:31,767 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=578, PETRI_PLACES=70, PETRI_TRANSITIONS=69} [2021-03-11 20:43:31,767 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 33 predicate places. [2021-03-11 20:43:31,767 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 69 transitions, 578 flow [2021-03-11 20:43:31,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:31,768 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:31,768 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] [2021-03-11 20:43:31,768 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 20:43:31,768 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:31,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:31,769 INFO L82 PathProgramCache]: Analyzing trace with hash -941566352, now seen corresponding path program 2 times [2021-03-11 20:43:31,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:31,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164428785] [2021-03-11 20:43:31,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:31,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:31,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 20:43:31,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:31,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:43:31,844 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:31,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:31,845 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:31,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:31,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:31,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:43:31,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:31,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 20:43:31,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:31,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164428785] [2021-03-11 20:43:31,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:31,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 20:43:31,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308946044] [2021-03-11 20:43:31,852 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 20:43:31,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:31,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 20:43:31,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 20:43:31,854 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 326 [2021-03-11 20:43:31,854 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 69 transitions, 578 flow. Second operand has 5 states, 5 states have (on average 172.6) internal successors, (863), 5 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:31,855 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:31,855 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 326 [2021-03-11 20:43:31,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:31,998 INFO L129 PetriNetUnfolder]: 312/800 cut-off events. [2021-03-11 20:43:31,998 INFO L130 PetriNetUnfolder]: For 2702/2708 co-relation queries the response was YES. [2021-03-11 20:43:32,000 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3166 conditions, 800 events. 312/800 cut-off events. For 2702/2708 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 5200 event pairs, 109 based on Foata normal form. 16/798 useless extension candidates. Maximal degree in co-relation 3142. Up to 468 conditions per place. [2021-03-11 20:43:32,003 INFO L132 encePairwiseOnDemand]: 318/326 looper letters, 76 selfloop transitions, 12 changer transitions 0/94 dead transitions. [2021-03-11 20:43:32,003 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 94 transitions, 982 flow [2021-03-11 20:43:32,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-11 20:43:32,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-11 20:43:32,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1050 transitions. [2021-03-11 20:43:32,006 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5368098159509203 [2021-03-11 20:43:32,006 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1050 transitions. [2021-03-11 20:43:32,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1050 transitions. [2021-03-11 20:43:32,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:32,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1050 transitions. [2021-03-11 20:43:32,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 175.0) internal successors, (1050), 6 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:32,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 326.0) internal successors, (2282), 7 states have internal predecessors, (2282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:32,010 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 326.0) internal successors, (2282), 7 states have internal predecessors, (2282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:32,010 INFO L185 Difference]: Start difference. First operand has 70 places, 69 transitions, 578 flow. Second operand 6 states and 1050 transitions. [2021-03-11 20:43:32,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 94 transitions, 982 flow [2021-03-11 20:43:32,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 94 transitions, 954 flow, removed 14 selfloop flow, removed 5 redundant places. [2021-03-11 20:43:32,019 INFO L241 Difference]: Finished difference. Result has 68 places, 70 transitions, 595 flow [2021-03-11 20:43:32,019 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=595, PETRI_PLACES=68, PETRI_TRANSITIONS=70} [2021-03-11 20:43:32,019 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 31 predicate places. [2021-03-11 20:43:32,019 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 70 transitions, 595 flow [2021-03-11 20:43:32,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 172.6) internal successors, (863), 5 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:32,019 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:32,019 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] [2021-03-11 20:43:32,019 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 20:43:32,020 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:32,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:32,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1596414844, now seen corresponding path program 3 times [2021-03-11 20:43:32,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:32,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274447445] [2021-03-11 20:43:32,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:32,139 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-11 20:43:32,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:43:32,154 INFO L142 QuantifierPusher]: treesize reduction 57, result has 41.8 percent of original size [2021-03-11 20:43:32,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:43:32,170 INFO L142 QuantifierPusher]: treesize reduction 49, result has 43.7 percent of original size [2021-03-11 20:43:32,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:43:32,187 INFO L142 QuantifierPusher]: treesize reduction 49, result has 40.2 percent of original size [2021-03-11 20:43:32,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:43:32,193 INFO L142 QuantifierPusher]: treesize reduction 49, result has 47.3 percent of original size [2021-03-11 20:43:32,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-11 20:43:32,230 INFO L142 QuantifierPusher]: treesize reduction 49, result has 43.7 percent of original size [2021-03-11 20:43:32,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:43:32,262 INFO L142 QuantifierPusher]: treesize reduction 49, result has 52.4 percent of original size [2021-03-11 20:43:32,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-11 20:43:32,319 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.3 percent of original size [2021-03-11 20:43:32,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 20:43:32,359 INFO L142 QuantifierPusher]: treesize reduction 16, result has 69.2 percent of original size [2021-03-11 20:43:32,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 20:43:32,361 INFO L142 QuantifierPusher]: treesize reduction 29, result has 67.8 percent of original size [2021-03-11 20:43:32,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 20:43:32,419 INFO L142 QuantifierPusher]: treesize reduction 29, result has 63.7 percent of original size [2021-03-11 20:43:32,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 20:43:32,441 INFO L142 QuantifierPusher]: treesize reduction 48, result has 50.5 percent of original size [2021-03-11 20:43:32,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 20:43:32,483 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.2 percent of original size [2021-03-11 20:43:32,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:43:32,518 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:32,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:32,538 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:32,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:32,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:32,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274447445] [2021-03-11 20:43:32,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:32,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 20:43:32,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947972617] [2021-03-11 20:43:32,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-11 20:43:32,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:32,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-11 20:43:32,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-03-11 20:43:32,556 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 326 [2021-03-11 20:43:32,557 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 70 transitions, 595 flow. Second operand has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:32,557 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:32,557 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 326 [2021-03-11 20:43:32,557 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:33,262 INFO L129 PetriNetUnfolder]: 352/919 cut-off events. [2021-03-11 20:43:33,262 INFO L130 PetriNetUnfolder]: For 3120/3128 co-relation queries the response was YES. [2021-03-11 20:43:33,265 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3739 conditions, 919 events. 352/919 cut-off events. For 3120/3128 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 6233 event pairs, 150 based on Foata normal form. 4/912 useless extension candidates. Maximal degree in co-relation 3716. Up to 662 conditions per place. [2021-03-11 20:43:33,268 INFO L132 encePairwiseOnDemand]: 314/326 looper letters, 79 selfloop transitions, 22 changer transitions 19/125 dead transitions. [2021-03-11 20:43:33,268 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 125 transitions, 1225 flow [2021-03-11 20:43:33,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 20:43:33,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 20:43:33,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1846 transitions. [2021-03-11 20:43:33,288 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.471881390593047 [2021-03-11 20:43:33,288 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1846 transitions. [2021-03-11 20:43:33,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1846 transitions. [2021-03-11 20:43:33,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:33,289 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1846 transitions. [2021-03-11 20:43:33,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 153.83333333333334) internal successors, (1846), 12 states have internal predecessors, (1846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:33,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 326.0) internal successors, (4238), 13 states have internal predecessors, (4238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:33,296 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 326.0) internal successors, (4238), 13 states have internal predecessors, (4238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:33,296 INFO L185 Difference]: Start difference. First operand has 68 places, 70 transitions, 595 flow. Second operand 12 states and 1846 transitions. [2021-03-11 20:43:33,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 125 transitions, 1225 flow [2021-03-11 20:43:33,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 125 transitions, 1222 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-11 20:43:33,302 INFO L241 Difference]: Finished difference. Result has 86 places, 83 transitions, 806 flow [2021-03-11 20:43:33,302 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=806, PETRI_PLACES=86, PETRI_TRANSITIONS=83} [2021-03-11 20:43:33,302 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 49 predicate places. [2021-03-11 20:43:33,303 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 83 transitions, 806 flow [2021-03-11 20:43:33,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:33,304 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:33,304 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] [2021-03-11 20:43:33,304 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 20:43:33,304 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:33,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:33,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1418741772, now seen corresponding path program 4 times [2021-03-11 20:43:33,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:33,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920888930] [2021-03-11 20:43:33,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:33,394 INFO L142 QuantifierPusher]: treesize reduction 15, result has 68.8 percent of original size [2021-03-11 20:43:33,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:43:33,407 INFO L142 QuantifierPusher]: treesize reduction 54, result has 43.2 percent of original size [2021-03-11 20:43:33,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:43:33,422 INFO L142 QuantifierPusher]: treesize reduction 46, result has 45.2 percent of original size [2021-03-11 20:43:33,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:43:33,439 INFO L142 QuantifierPusher]: treesize reduction 46, result has 41.8 percent of original size [2021-03-11 20:43:33,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:43:33,444 INFO L142 QuantifierPusher]: treesize reduction 46, result has 37.0 percent of original size [2021-03-11 20:43:33,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:43:33,461 INFO L142 QuantifierPusher]: treesize reduction 46, result has 36.1 percent of original size [2021-03-11 20:43:33,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 20:43:33,478 INFO L142 QuantifierPusher]: treesize reduction 46, result has 47.1 percent of original size [2021-03-11 20:43:33,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:43:33,500 INFO L142 QuantifierPusher]: treesize reduction 15, result has 67.4 percent of original size [2021-03-11 20:43:33,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:43:33,518 INFO L142 QuantifierPusher]: treesize reduction 29, result has 67.8 percent of original size [2021-03-11 20:43:33,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 20:43:33,558 INFO L142 QuantifierPusher]: treesize reduction 29, result has 63.7 percent of original size [2021-03-11 20:43:33,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 20:43:33,571 INFO L142 QuantifierPusher]: treesize reduction 48, result has 50.5 percent of original size [2021-03-11 20:43:33,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 20:43:33,613 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.2 percent of original size [2021-03-11 20:43:33,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:43:33,647 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:33,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:33,661 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:33,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:33,662 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:33,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:33,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:33,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920888930] [2021-03-11 20:43:33,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:33,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 20:43:33,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168464787] [2021-03-11 20:43:33,677 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-11 20:43:33,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:33,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-11 20:43:33,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-03-11 20:43:33,678 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 326 [2021-03-11 20:43:33,680 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 83 transitions, 806 flow. Second operand has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:33,680 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:33,680 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 326 [2021-03-11 20:43:33,680 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:34,427 INFO L129 PetriNetUnfolder]: 336/888 cut-off events. [2021-03-11 20:43:34,427 INFO L130 PetriNetUnfolder]: For 3714/3722 co-relation queries the response was YES. [2021-03-11 20:43:34,429 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3879 conditions, 888 events. 336/888 cut-off events. For 3714/3722 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 5961 event pairs, 146 based on Foata normal form. 7/882 useless extension candidates. Maximal degree in co-relation 3848. Up to 654 conditions per place. [2021-03-11 20:43:34,432 INFO L132 encePairwiseOnDemand]: 314/326 looper letters, 88 selfloop transitions, 24 changer transitions 15/132 dead transitions. [2021-03-11 20:43:34,433 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 132 transitions, 1414 flow [2021-03-11 20:43:34,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 20:43:34,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 20:43:34,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2001 transitions. [2021-03-11 20:43:34,436 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.47215667767815006 [2021-03-11 20:43:34,436 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2001 transitions. [2021-03-11 20:43:34,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2001 transitions. [2021-03-11 20:43:34,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:34,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2001 transitions. [2021-03-11 20:43:34,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 153.92307692307693) internal successors, (2001), 13 states have internal predecessors, (2001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:34,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 326.0) internal successors, (4564), 14 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:34,449 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 326.0) internal successors, (4564), 14 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:34,449 INFO L185 Difference]: Start difference. First operand has 86 places, 83 transitions, 806 flow. Second operand 13 states and 2001 transitions. [2021-03-11 20:43:34,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 132 transitions, 1414 flow [2021-03-11 20:43:34,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 132 transitions, 1362 flow, removed 17 selfloop flow, removed 5 redundant places. [2021-03-11 20:43:34,458 INFO L241 Difference]: Finished difference. Result has 94 places, 86 transitions, 900 flow [2021-03-11 20:43:34,459 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=759, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=900, PETRI_PLACES=94, PETRI_TRANSITIONS=86} [2021-03-11 20:43:34,459 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 57 predicate places. [2021-03-11 20:43:34,459 INFO L480 AbstractCegarLoop]: Abstraction has has 94 places, 86 transitions, 900 flow [2021-03-11 20:43:34,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:34,460 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:34,460 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] [2021-03-11 20:43:34,460 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 20:43:34,460 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:34,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:34,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1458105031, now seen corresponding path program 3 times [2021-03-11 20:43:34,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:34,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650051631] [2021-03-11 20:43:34,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:34,527 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-11 20:43:34,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 20:43:34,541 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.9 percent of original size [2021-03-11 20:43:34,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:43:34,564 INFO L142 QuantifierPusher]: treesize reduction 26, result has 60.0 percent of original size [2021-03-11 20:43:34,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:43:34,592 INFO L142 QuantifierPusher]: treesize reduction 26, result has 59.4 percent of original size [2021-03-11 20:43:34,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:43:34,621 INFO L142 QuantifierPusher]: treesize reduction 26, result has 64.4 percent of original size [2021-03-11 20:43:34,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 20:43:34,654 INFO L142 QuantifierPusher]: treesize reduction 26, result has 67.5 percent of original size [2021-03-11 20:43:34,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-11 20:43:34,664 INFO L142 QuantifierPusher]: treesize reduction 26, result has 67.5 percent of original size [2021-03-11 20:43:34,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-11 20:43:34,674 INFO L142 QuantifierPusher]: treesize reduction 26, result has 64.4 percent of original size [2021-03-11 20:43:34,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 20:43:34,684 INFO L142 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size [2021-03-11 20:43:34,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:43:34,696 INFO L142 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size [2021-03-11 20:43:34,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:43:34,698 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:34,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:34,709 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:34,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:34,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:34,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650051631] [2021-03-11 20:43:34,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:34,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-11 20:43:34,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262171699] [2021-03-11 20:43:34,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-11 20:43:34,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:34,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-11 20:43:34,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-03-11 20:43:34,725 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 326 [2021-03-11 20:43:34,726 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 86 transitions, 900 flow. Second operand has 10 states, 10 states have (on average 151.9) internal successors, (1519), 10 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:34,726 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:34,726 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 326 [2021-03-11 20:43:34,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:35,263 INFO L129 PetriNetUnfolder]: 413/1146 cut-off events. [2021-03-11 20:43:35,263 INFO L130 PetriNetUnfolder]: For 4967/4973 co-relation queries the response was YES. [2021-03-11 20:43:35,267 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4955 conditions, 1146 events. 413/1146 cut-off events. For 4967/4973 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 8396 event pairs, 104 based on Foata normal form. 7/1153 useless extension candidates. Maximal degree in co-relation 4922. Up to 538 conditions per place. [2021-03-11 20:43:35,271 INFO L132 encePairwiseOnDemand]: 317/326 looper letters, 109 selfloop transitions, 50 changer transitions 11/175 dead transitions. [2021-03-11 20:43:35,271 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 175 transitions, 1978 flow [2021-03-11 20:43:35,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 20:43:35,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 20:43:35,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1735 transitions. [2021-03-11 20:43:35,274 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.48382598996095927 [2021-03-11 20:43:35,274 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1735 transitions. [2021-03-11 20:43:35,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1735 transitions. [2021-03-11 20:43:35,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:35,275 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1735 transitions. [2021-03-11 20:43:35,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 157.72727272727272) internal successors, (1735), 11 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:35,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 326.0) internal successors, (3912), 12 states have internal predecessors, (3912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:35,280 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 326.0) internal successors, (3912), 12 states have internal predecessors, (3912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:35,280 INFO L185 Difference]: Start difference. First operand has 94 places, 86 transitions, 900 flow. Second operand 11 states and 1735 transitions. [2021-03-11 20:43:35,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 175 transitions, 1978 flow [2021-03-11 20:43:35,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 175 transitions, 1878 flow, removed 26 selfloop flow, removed 7 redundant places. [2021-03-11 20:43:35,291 INFO L241 Difference]: Finished difference. Result has 95 places, 106 transitions, 1198 flow [2021-03-11 20:43:35,291 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1198, PETRI_PLACES=95, PETRI_TRANSITIONS=106} [2021-03-11 20:43:35,291 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 58 predicate places. [2021-03-11 20:43:35,291 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 106 transitions, 1198 flow [2021-03-11 20:43:35,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 151.9) internal successors, (1519), 10 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:35,292 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:35,292 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] [2021-03-11 20:43:35,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 20:43:35,292 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:35,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:35,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1276197697, now seen corresponding path program 4 times [2021-03-11 20:43:35,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:35,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395934114] [2021-03-11 20:43:35,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:35,355 INFO L142 QuantifierPusher]: treesize reduction 18, result has 50.0 percent of original size [2021-03-11 20:43:35,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 20:43:35,363 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-11 20:43:35,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:35,372 INFO L142 QuantifierPusher]: treesize reduction 30, result has 53.1 percent of original size [2021-03-11 20:43:35,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 20:43:35,393 INFO L142 QuantifierPusher]: treesize reduction 49, result has 46.7 percent of original size [2021-03-11 20:43:35,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:43:35,429 INFO L142 QuantifierPusher]: treesize reduction 49, result has 53.8 percent of original size [2021-03-11 20:43:35,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 20:43:35,480 INFO L142 QuantifierPusher]: treesize reduction 49, result has 55.5 percent of original size [2021-03-11 20:43:35,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 20:43:35,530 INFO L142 QuantifierPusher]: treesize reduction 49, result has 60.5 percent of original size [2021-03-11 20:43:35,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-11 20:43:35,543 INFO L142 QuantifierPusher]: treesize reduction 49, result has 60.5 percent of original size [2021-03-11 20:43:35,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-11 20:43:35,556 INFO L142 QuantifierPusher]: treesize reduction 49, result has 55.5 percent of original size [2021-03-11 20:43:35,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 20:43:35,567 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 20:43:35,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 20:43:35,590 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:35,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:35,600 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:35,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:35,601 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:35,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:35,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:35,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395934114] [2021-03-11 20:43:35,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:35,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-11 20:43:35,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656968927] [2021-03-11 20:43:35,612 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 20:43:35,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:35,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 20:43:35,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-03-11 20:43:35,614 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 326 [2021-03-11 20:43:35,614 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 106 transitions, 1198 flow. Second operand has 11 states, 11 states have (on average 151.72727272727272) internal successors, (1669), 11 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:35,614 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:35,615 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 326 [2021-03-11 20:43:35,615 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:35,969 INFO L129 PetriNetUnfolder]: 490/1322 cut-off events. [2021-03-11 20:43:35,969 INFO L130 PetriNetUnfolder]: For 6549/6584 co-relation queries the response was YES. [2021-03-11 20:43:35,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5950 conditions, 1322 events. 490/1322 cut-off events. For 6549/6584 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 9938 event pairs, 170 based on Foata normal form. 12/1326 useless extension candidates. Maximal degree in co-relation 5916. Up to 829 conditions per place. [2021-03-11 20:43:35,978 INFO L132 encePairwiseOnDemand]: 319/326 looper letters, 136 selfloop transitions, 36 changer transitions 0/177 dead transitions. [2021-03-11 20:43:35,978 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 177 transitions, 2200 flow [2021-03-11 20:43:35,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 20:43:35,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-11 20:43:35,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1259 transitions. [2021-03-11 20:43:35,981 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.48274539877300615 [2021-03-11 20:43:35,981 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1259 transitions. [2021-03-11 20:43:35,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1259 transitions. [2021-03-11 20:43:35,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:35,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1259 transitions. [2021-03-11 20:43:35,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 157.375) internal successors, (1259), 8 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:35,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 326.0) internal successors, (2934), 9 states have internal predecessors, (2934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:35,985 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 326.0) internal successors, (2934), 9 states have internal predecessors, (2934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:35,985 INFO L185 Difference]: Start difference. First operand has 95 places, 106 transitions, 1198 flow. Second operand 8 states and 1259 transitions. [2021-03-11 20:43:35,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 177 transitions, 2200 flow [2021-03-11 20:43:35,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 177 transitions, 2118 flow, removed 28 selfloop flow, removed 3 redundant places. [2021-03-11 20:43:35,998 INFO L241 Difference]: Finished difference. Result has 102 places, 112 transitions, 1336 flow [2021-03-11 20:43:35,999 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=1147, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1336, PETRI_PLACES=102, PETRI_TRANSITIONS=112} [2021-03-11 20:43:35,999 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 65 predicate places. [2021-03-11 20:43:35,999 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 112 transitions, 1336 flow [2021-03-11 20:43:35,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 151.72727272727272) internal successors, (1669), 11 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:35,999 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:35,999 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] [2021-03-11 20:43:35,999 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 20:43:35,999 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:36,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:36,000 INFO L82 PathProgramCache]: Analyzing trace with hash -76126460, now seen corresponding path program 1 times [2021-03-11 20:43:36,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:36,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886035208] [2021-03-11 20:43:36,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:36,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:36,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 20:43:36,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:36,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 20:43:36,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:36,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 20:43:36,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:36,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:43:36,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:36,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 20:43:36,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:36,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 20:43:36,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:36,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:43:36,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:36,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:43:36,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:36,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:43:36,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:36,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:43:36,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:36,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 20:43:36,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:36,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:36,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:36,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:36,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:36,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:36,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:36,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 20:43:36,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:36,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:43:36,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:36,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886035208] [2021-03-11 20:43:36,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:36,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 20:43:36,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852123663] [2021-03-11 20:43:36,163 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-11 20:43:36,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:36,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-11 20:43:36,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-03-11 20:43:36,165 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 326 [2021-03-11 20:43:36,165 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 112 transitions, 1336 flow. Second operand has 11 states, 11 states have (on average 145.8181818181818) internal successors, (1604), 11 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:36,165 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:36,165 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 326 [2021-03-11 20:43:36,165 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:36,754 INFO L129 PetriNetUnfolder]: 552/1468 cut-off events. [2021-03-11 20:43:36,754 INFO L130 PetriNetUnfolder]: For 7759/7777 co-relation queries the response was YES. [2021-03-11 20:43:36,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6728 conditions, 1468 events. 552/1468 cut-off events. For 7759/7777 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 11160 event pairs, 148 based on Foata normal form. 28/1496 useless extension candidates. Maximal degree in co-relation 6692. Up to 745 conditions per place. [2021-03-11 20:43:36,763 INFO L132 encePairwiseOnDemand]: 315/326 looper letters, 137 selfloop transitions, 52 changer transitions 15/206 dead transitions. [2021-03-11 20:43:36,763 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 206 transitions, 2644 flow [2021-03-11 20:43:36,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 20:43:36,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 20:43:36,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1821 transitions. [2021-03-11 20:43:36,767 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.46549079754601225 [2021-03-11 20:43:36,767 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1821 transitions. [2021-03-11 20:43:36,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1821 transitions. [2021-03-11 20:43:36,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:36,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1821 transitions. [2021-03-11 20:43:36,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 151.75) internal successors, (1821), 12 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:36,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 326.0) internal successors, (4238), 13 states have internal predecessors, (4238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:36,774 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 326.0) internal successors, (4238), 13 states have internal predecessors, (4238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:36,774 INFO L185 Difference]: Start difference. First operand has 102 places, 112 transitions, 1336 flow. Second operand 12 states and 1821 transitions. [2021-03-11 20:43:36,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 206 transitions, 2644 flow [2021-03-11 20:43:36,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 206 transitions, 2554 flow, removed 14 selfloop flow, removed 3 redundant places. [2021-03-11 20:43:36,794 INFO L241 Difference]: Finished difference. Result has 115 places, 122 transitions, 1559 flow [2021-03-11 20:43:36,794 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=1256, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1559, PETRI_PLACES=115, PETRI_TRANSITIONS=122} [2021-03-11 20:43:36,794 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 78 predicate places. [2021-03-11 20:43:36,794 INFO L480 AbstractCegarLoop]: Abstraction has has 115 places, 122 transitions, 1559 flow [2021-03-11 20:43:36,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 145.8181818181818) internal successors, (1604), 11 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:36,794 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:36,794 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] [2021-03-11 20:43:36,795 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-11 20:43:36,795 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:36,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:36,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1012003380, now seen corresponding path program 5 times [2021-03-11 20:43:36,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:36,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751725671] [2021-03-11 20:43:36,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:36,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:36,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:36,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 20:43:36,845 INFO L142 QuantifierPusher]: treesize reduction 13, result has 74.0 percent of original size [2021-03-11 20:43:36,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 20:43:36,869 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:36,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:36,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:43:36,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:43:36,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:36,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751725671] [2021-03-11 20:43:36,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:36,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 20:43:36,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190695467] [2021-03-11 20:43:36,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 20:43:36,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:36,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 20:43:36,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-11 20:43:36,875 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 326 [2021-03-11 20:43:36,876 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 122 transitions, 1559 flow. Second operand has 4 states, 4 states have (on average 239.25) internal successors, (957), 4 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:36,876 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:36,876 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 326 [2021-03-11 20:43:36,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:36,919 INFO L129 PetriNetUnfolder]: 16/264 cut-off events. [2021-03-11 20:43:36,919 INFO L130 PetriNetUnfolder]: For 1686/1742 co-relation queries the response was YES. [2021-03-11 20:43:36,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1189 conditions, 264 events. 16/264 cut-off events. For 1686/1742 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1831 event pairs, 3 based on Foata normal form. 32/295 useless extension candidates. Maximal degree in co-relation 1149. Up to 52 conditions per place. [2021-03-11 20:43:36,920 INFO L132 encePairwiseOnDemand]: 322/326 looper letters, 14 selfloop transitions, 6 changer transitions 1/77 dead transitions. [2021-03-11 20:43:36,920 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 77 transitions, 963 flow [2021-03-11 20:43:36,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 20:43:36,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-11 20:43:36,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 958 transitions. [2021-03-11 20:43:36,923 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7346625766871165 [2021-03-11 20:43:36,923 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 958 transitions. [2021-03-11 20:43:36,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 958 transitions. [2021-03-11 20:43:36,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:36,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 958 transitions. [2021-03-11 20:43:36,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 239.5) internal successors, (958), 4 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:36,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 326.0) internal successors, (1630), 5 states have internal predecessors, (1630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:36,925 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 326.0) internal successors, (1630), 5 states have internal predecessors, (1630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:36,925 INFO L185 Difference]: Start difference. First operand has 115 places, 122 transitions, 1559 flow. Second operand 4 states and 958 transitions. [2021-03-11 20:43:36,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 77 transitions, 963 flow [2021-03-11 20:43:36,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 77 transitions, 860 flow, removed 31 selfloop flow, removed 11 redundant places. [2021-03-11 20:43:36,930 INFO L241 Difference]: Finished difference. Result has 99 places, 76 transitions, 838 flow [2021-03-11 20:43:36,931 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=838, PETRI_PLACES=99, PETRI_TRANSITIONS=76} [2021-03-11 20:43:36,931 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 62 predicate places. [2021-03-11 20:43:36,931 INFO L480 AbstractCegarLoop]: Abstraction has has 99 places, 76 transitions, 838 flow [2021-03-11 20:43:36,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 239.25) internal successors, (957), 4 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:36,931 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:36,931 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] [2021-03-11 20:43:36,932 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-11 20:43:36,932 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:36,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:36,932 INFO L82 PathProgramCache]: Analyzing trace with hash -449725920, now seen corresponding path program 6 times [2021-03-11 20:43:36,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:36,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482692976] [2021-03-11 20:43:36,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:36,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:37,024 INFO L142 QuantifierPusher]: treesize reduction 15, result has 68.8 percent of original size [2021-03-11 20:43:37,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:43:37,034 INFO L142 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size [2021-03-11 20:43:37,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 20:43:37,044 INFO L142 QuantifierPusher]: treesize reduction 15, result has 61.5 percent of original size [2021-03-11 20:43:37,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 20:43:37,055 INFO L142 QuantifierPusher]: treesize reduction 48, result has 52.5 percent of original size [2021-03-11 20:43:37,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 20:43:37,092 INFO L142 QuantifierPusher]: treesize reduction 48, result has 50.0 percent of original size [2021-03-11 20:43:37,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 20:43:37,107 INFO L142 QuantifierPusher]: treesize reduction 48, result has 46.7 percent of original size [2021-03-11 20:43:37,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:43:37,140 INFO L142 QuantifierPusher]: treesize reduction 48, result has 54.3 percent of original size [2021-03-11 20:43:37,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-11 20:43:37,188 INFO L142 QuantifierPusher]: treesize reduction 15, result has 67.4 percent of original size [2021-03-11 20:43:37,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:43:37,206 INFO L142 QuantifierPusher]: treesize reduction 28, result has 60.0 percent of original size [2021-03-11 20:43:37,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:43:37,224 INFO L142 QuantifierPusher]: treesize reduction 28, result has 53.3 percent of original size [2021-03-11 20:43:37,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:43:37,234 INFO L142 QuantifierPusher]: treesize reduction 47, result has 39.0 percent of original size [2021-03-11 20:43:37,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 20:43:37,261 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-11 20:43:37,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 20:43:37,277 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:37,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:37,291 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:37,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:37,292 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:37,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:37,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:37,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482692976] [2021-03-11 20:43:37,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:37,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 20:43:37,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202713180] [2021-03-11 20:43:37,306 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-11 20:43:37,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:37,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-11 20:43:37,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-03-11 20:43:37,308 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 326 [2021-03-11 20:43:37,309 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 76 transitions, 838 flow. Second operand has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:37,309 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:37,309 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 326 [2021-03-11 20:43:37,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:37,881 INFO L129 PetriNetUnfolder]: 111/441 cut-off events. [2021-03-11 20:43:37,882 INFO L130 PetriNetUnfolder]: For 1826/1832 co-relation queries the response was YES. [2021-03-11 20:43:37,883 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1963 conditions, 441 events. 111/441 cut-off events. For 1826/1832 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2923 event pairs, 85 based on Foata normal form. 3/443 useless extension candidates. Maximal degree in co-relation 1929. Up to 358 conditions per place. [2021-03-11 20:43:37,884 INFO L132 encePairwiseOnDemand]: 314/326 looper letters, 65 selfloop transitions, 8 changer transitions 19/97 dead transitions. [2021-03-11 20:43:37,884 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 97 transitions, 1174 flow [2021-03-11 20:43:37,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 20:43:37,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 20:43:37,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1678 transitions. [2021-03-11 20:43:37,886 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.467930842163971 [2021-03-11 20:43:37,886 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1678 transitions. [2021-03-11 20:43:37,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1678 transitions. [2021-03-11 20:43:37,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:37,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1678 transitions. [2021-03-11 20:43:37,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 152.54545454545453) internal successors, (1678), 11 states have internal predecessors, (1678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:37,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 326.0) internal successors, (3912), 12 states have internal predecessors, (3912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:37,890 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 326.0) internal successors, (3912), 12 states have internal predecessors, (3912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:37,890 INFO L185 Difference]: Start difference. First operand has 99 places, 76 transitions, 838 flow. Second operand 11 states and 1678 transitions. [2021-03-11 20:43:37,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 97 transitions, 1174 flow [2021-03-11 20:43:37,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 97 transitions, 1156 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-11 20:43:37,897 INFO L241 Difference]: Finished difference. Result has 111 places, 75 transitions, 828 flow [2021-03-11 20:43:37,897 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=810, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=828, PETRI_PLACES=111, PETRI_TRANSITIONS=75} [2021-03-11 20:43:37,897 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 74 predicate places. [2021-03-11 20:43:37,897 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 75 transitions, 828 flow [2021-03-11 20:43:37,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:37,898 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:37,898 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] [2021-03-11 20:43:37,898 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-11 20:43:37,898 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:37,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:37,898 INFO L82 PathProgramCache]: Analyzing trace with hash 154169447, now seen corresponding path program 5 times [2021-03-11 20:43:37,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:37,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895340798] [2021-03-11 20:43:37,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:37,953 INFO L142 QuantifierPusher]: treesize reduction 18, result has 50.0 percent of original size [2021-03-11 20:43:37,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 20:43:37,962 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-11 20:43:37,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 20:43:37,972 INFO L142 QuantifierPusher]: treesize reduction 28, result has 53.3 percent of original size [2021-03-11 20:43:37,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:43:37,985 INFO L142 QuantifierPusher]: treesize reduction 28, result has 58.2 percent of original size [2021-03-11 20:43:37,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:43:37,991 INFO L142 QuantifierPusher]: treesize reduction 28, result has 53.3 percent of original size [2021-03-11 20:43:37,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:43:37,992 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-11 20:43:37,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 20:43:38,002 INFO L142 QuantifierPusher]: treesize reduction 16, result has 69.8 percent of original size [2021-03-11 20:43:38,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 20:43:38,029 INFO L142 QuantifierPusher]: treesize reduction 16, result has 69.2 percent of original size [2021-03-11 20:43:38,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 20:43:38,056 INFO L142 QuantifierPusher]: treesize reduction 16, result has 71.9 percent of original size [2021-03-11 20:43:38,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:43:38,081 INFO L142 QuantifierPusher]: treesize reduction 14, result has 77.4 percent of original size [2021-03-11 20:43:38,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 20:43:38,104 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-11 20:43:38,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 20:43:38,125 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:38,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:38,139 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:38,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:38,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:38,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895340798] [2021-03-11 20:43:38,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:38,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 20:43:38,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201130036] [2021-03-11 20:43:38,152 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 20:43:38,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:38,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 20:43:38,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-03-11 20:43:38,153 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 326 [2021-03-11 20:43:38,154 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 75 transitions, 828 flow. Second operand has 13 states, 13 states have (on average 150.46153846153845) internal successors, (1956), 13 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:38,154 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:38,154 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 326 [2021-03-11 20:43:38,154 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:38,685 INFO L129 PetriNetUnfolder]: 109/423 cut-off events. [2021-03-11 20:43:38,685 INFO L130 PetriNetUnfolder]: For 1783/1785 co-relation queries the response was YES. [2021-03-11 20:43:38,687 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1931 conditions, 423 events. 109/423 cut-off events. For 1783/1785 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2723 event pairs, 60 based on Foata normal form. 5/428 useless extension candidates. Maximal degree in co-relation 1892. Up to 241 conditions per place. [2021-03-11 20:43:38,688 INFO L132 encePairwiseOnDemand]: 316/326 looper letters, 56 selfloop transitions, 42 changer transitions 3/106 dead transitions. [2021-03-11 20:43:38,688 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 106 transitions, 1205 flow [2021-03-11 20:43:38,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 20:43:38,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 20:43:38,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2004 transitions. [2021-03-11 20:43:38,690 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4728645587541293 [2021-03-11 20:43:38,690 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2004 transitions. [2021-03-11 20:43:38,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2004 transitions. [2021-03-11 20:43:38,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:38,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2004 transitions. [2021-03-11 20:43:38,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 154.15384615384616) internal successors, (2004), 13 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:38,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 326.0) internal successors, (4564), 14 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:38,695 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 326.0) internal successors, (4564), 14 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:38,695 INFO L185 Difference]: Start difference. First operand has 111 places, 75 transitions, 828 flow. Second operand 13 states and 2004 transitions. [2021-03-11 20:43:38,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 106 transitions, 1205 flow [2021-03-11 20:43:38,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 106 transitions, 1147 flow, removed 27 selfloop flow, removed 7 redundant places. [2021-03-11 20:43:38,701 INFO L241 Difference]: Finished difference. Result has 109 places, 78 transitions, 930 flow [2021-03-11 20:43:38,701 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=930, PETRI_PLACES=109, PETRI_TRANSITIONS=78} [2021-03-11 20:43:38,701 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 72 predicate places. [2021-03-11 20:43:38,701 INFO L480 AbstractCegarLoop]: Abstraction has has 109 places, 78 transitions, 930 flow [2021-03-11 20:43:38,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 150.46153846153845) internal successors, (1956), 13 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:38,702 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:38,702 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] [2021-03-11 20:43:38,702 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-11 20:43:38,702 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:38,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:38,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1631253614, now seen corresponding path program 7 times [2021-03-11 20:43:38,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:38,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018184331] [2021-03-11 20:43:38,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:38,770 INFO L142 QuantifierPusher]: treesize reduction 15, result has 68.8 percent of original size [2021-03-11 20:43:38,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:43:38,780 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-11 20:43:38,781 INFO L147 QuantifierPusher]: treesize reduction 6, result has 87.2 percent of original size 41 [2021-03-11 20:43:38,809 INFO L142 QuantifierPusher]: treesize reduction 37, result has 54.3 percent of original size [2021-03-11 20:43:38,809 INFO L147 QuantifierPusher]: treesize reduction 6, result has 86.4 percent of original size 38 [2021-03-11 20:43:38,837 INFO L142 QuantifierPusher]: treesize reduction 37, result has 51.3 percent of original size [2021-03-11 20:43:38,838 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-11 20:43:38,843 INFO L142 QuantifierPusher]: treesize reduction 37, result has 47.1 percent of original size [2021-03-11 20:43:38,843 INFO L147 QuantifierPusher]: treesize reduction 6, result has 81.8 percent of original size 27 [2021-03-11 20:43:38,867 INFO L142 QuantifierPusher]: treesize reduction 37, result has 56.5 percent of original size [2021-03-11 20:43:38,869 INFO L147 QuantifierPusher]: treesize reduction 6, result has 87.5 percent of original size 42 [2021-03-11 20:43:38,900 INFO L142 QuantifierPusher]: treesize reduction 15, result has 68.1 percent of original size [2021-03-11 20:43:38,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:43:38,916 INFO L142 QuantifierPusher]: treesize reduction 29, result has 68.1 percent of original size [2021-03-11 20:43:38,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-11 20:43:38,954 INFO L142 QuantifierPusher]: treesize reduction 29, result has 64.2 percent of original size [2021-03-11 20:43:38,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-11 20:43:38,964 INFO L142 QuantifierPusher]: treesize reduction 48, result has 51.0 percent of original size [2021-03-11 20:43:38,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:43:39,004 INFO L142 QuantifierPusher]: treesize reduction 48, result has 50.5 percent of original size [2021-03-11 20:43:39,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 20:43:39,045 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.2 percent of original size [2021-03-11 20:43:39,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:43:39,078 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:39,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:39,093 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:39,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:39,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:39,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018184331] [2021-03-11 20:43:39,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:39,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 20:43:39,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692165528] [2021-03-11 20:43:39,107 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-11 20:43:39,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:39,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-11 20:43:39,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-03-11 20:43:39,109 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 326 [2021-03-11 20:43:39,110 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 78 transitions, 930 flow. Second operand has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:39,110 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:39,110 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 326 [2021-03-11 20:43:39,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:39,772 INFO L129 PetriNetUnfolder]: 131/518 cut-off events. [2021-03-11 20:43:39,772 INFO L130 PetriNetUnfolder]: For 2239/2246 co-relation queries the response was YES. [2021-03-11 20:43:39,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2250 conditions, 518 events. 131/518 cut-off events. For 2239/2246 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3688 event pairs, 73 based on Foata normal form. 5/523 useless extension candidates. Maximal degree in co-relation 2215. Up to 307 conditions per place. [2021-03-11 20:43:39,774 INFO L132 encePairwiseOnDemand]: 313/326 looper letters, 68 selfloop transitions, 34 changer transitions 17/124 dead transitions. [2021-03-11 20:43:39,774 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 124 transitions, 1521 flow [2021-03-11 20:43:39,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 20:43:39,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-11 20:43:39,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2136 transitions. [2021-03-11 20:43:39,777 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4680105170902717 [2021-03-11 20:43:39,777 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2136 transitions. [2021-03-11 20:43:39,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2136 transitions. [2021-03-11 20:43:39,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:39,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2136 transitions. [2021-03-11 20:43:39,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 152.57142857142858) internal successors, (2136), 14 states have internal predecessors, (2136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:39,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 326.0) internal successors, (4890), 15 states have internal predecessors, (4890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:39,782 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 326.0) internal successors, (4890), 15 states have internal predecessors, (4890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:39,782 INFO L185 Difference]: Start difference. First operand has 109 places, 78 transitions, 930 flow. Second operand 14 states and 2136 transitions. [2021-03-11 20:43:39,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 124 transitions, 1521 flow [2021-03-11 20:43:39,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 124 transitions, 1480 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-11 20:43:39,789 INFO L241 Difference]: Finished difference. Result has 125 places, 94 transitions, 1149 flow [2021-03-11 20:43:39,790 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1149, PETRI_PLACES=125, PETRI_TRANSITIONS=94} [2021-03-11 20:43:39,790 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 88 predicate places. [2021-03-11 20:43:39,790 INFO L480 AbstractCegarLoop]: Abstraction has has 125 places, 94 transitions, 1149 flow [2021-03-11 20:43:39,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:39,790 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:39,790 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] [2021-03-11 20:43:39,791 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-11 20:43:39,791 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:39,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:39,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1553365972, now seen corresponding path program 8 times [2021-03-11 20:43:39,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:39,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298267788] [2021-03-11 20:43:39,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:39,862 INFO L142 QuantifierPusher]: treesize reduction 24, result has 57.9 percent of original size [2021-03-11 20:43:39,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:43:39,873 INFO L142 QuantifierPusher]: treesize reduction 24, result has 51.0 percent of original size [2021-03-11 20:43:39,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 20:43:39,883 INFO L142 QuantifierPusher]: treesize reduction 40, result has 52.4 percent of original size [2021-03-11 20:43:39,883 INFO L147 QuantifierPusher]: treesize reduction 6, result has 86.4 percent of original size 38 [2021-03-11 20:43:39,911 INFO L142 QuantifierPusher]: treesize reduction 40, result has 49.4 percent of original size [2021-03-11 20:43:39,911 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-11 20:43:39,916 INFO L142 QuantifierPusher]: treesize reduction 40, result has 45.2 percent of original size [2021-03-11 20:43:39,916 INFO L147 QuantifierPusher]: treesize reduction 6, result has 81.8 percent of original size 27 [2021-03-11 20:43:39,944 INFO L142 QuantifierPusher]: treesize reduction 40, result has 54.5 percent of original size [2021-03-11 20:43:39,945 INFO L147 QuantifierPusher]: treesize reduction 6, result has 87.5 percent of original size 42 [2021-03-11 20:43:39,978 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-11 20:43:39,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:43:39,994 INFO L142 QuantifierPusher]: treesize reduction 32, result has 66.0 percent of original size [2021-03-11 20:43:39,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-11 20:43:40,033 INFO L142 QuantifierPusher]: treesize reduction 29, result has 67.8 percent of original size [2021-03-11 20:43:40,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 20:43:40,075 INFO L142 QuantifierPusher]: treesize reduction 29, result has 63.7 percent of original size [2021-03-11 20:43:40,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 20:43:40,086 INFO L142 QuantifierPusher]: treesize reduction 29, result has 63.7 percent of original size [2021-03-11 20:43:40,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 20:43:40,099 INFO L142 QuantifierPusher]: treesize reduction 48, result has 50.5 percent of original size [2021-03-11 20:43:40,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 20:43:40,144 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.2 percent of original size [2021-03-11 20:43:40,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:43:40,181 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:40,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:40,195 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:40,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:40,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:40,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298267788] [2021-03-11 20:43:40,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:40,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 20:43:40,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827898053] [2021-03-11 20:43:40,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-11 20:43:40,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:40,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-11 20:43:40,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-03-11 20:43:40,211 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 326 [2021-03-11 20:43:40,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 94 transitions, 1149 flow. Second operand has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:40,213 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:40,213 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 326 [2021-03-11 20:43:40,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:40,821 INFO L129 PetriNetUnfolder]: 119/488 cut-off events. [2021-03-11 20:43:40,821 INFO L130 PetriNetUnfolder]: For 2344/2347 co-relation queries the response was YES. [2021-03-11 20:43:40,823 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2342 conditions, 488 events. 119/488 cut-off events. For 2344/2347 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3427 event pairs, 57 based on Foata normal form. 7/495 useless extension candidates. Maximal degree in co-relation 2301. Up to 229 conditions per place. [2021-03-11 20:43:40,824 INFO L132 encePairwiseOnDemand]: 314/326 looper letters, 63 selfloop transitions, 17 changer transitions 32/117 dead transitions. [2021-03-11 20:43:40,824 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 117 transitions, 1485 flow [2021-03-11 20:43:40,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 20:43:40,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 20:43:40,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1683 transitions. [2021-03-11 20:43:40,827 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.46932515337423314 [2021-03-11 20:43:40,827 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1683 transitions. [2021-03-11 20:43:40,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1683 transitions. [2021-03-11 20:43:40,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:40,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1683 transitions. [2021-03-11 20:43:40,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 153.0) internal successors, (1683), 11 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:40,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 326.0) internal successors, (3912), 12 states have internal predecessors, (3912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:40,833 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 326.0) internal successors, (3912), 12 states have internal predecessors, (3912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:40,833 INFO L185 Difference]: Start difference. First operand has 125 places, 94 transitions, 1149 flow. Second operand 11 states and 1683 transitions. [2021-03-11 20:43:40,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 117 transitions, 1485 flow [2021-03-11 20:43:40,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 117 transitions, 1418 flow, removed 12 selfloop flow, removed 6 redundant places. [2021-03-11 20:43:40,843 INFO L241 Difference]: Finished difference. Result has 129 places, 78 transitions, 900 flow [2021-03-11 20:43:40,843 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=1052, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=900, PETRI_PLACES=129, PETRI_TRANSITIONS=78} [2021-03-11 20:43:40,843 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 92 predicate places. [2021-03-11 20:43:40,843 INFO L480 AbstractCegarLoop]: Abstraction has has 129 places, 78 transitions, 900 flow [2021-03-11 20:43:40,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:40,844 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:40,844 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] [2021-03-11 20:43:40,844 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-11 20:43:40,844 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:40,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:40,844 INFO L82 PathProgramCache]: Analyzing trace with hash -2092108244, now seen corresponding path program 9 times [2021-03-11 20:43:40,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:40,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572292750] [2021-03-11 20:43:40,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:40,913 INFO L142 QuantifierPusher]: treesize reduction 13, result has 82.2 percent of original size [2021-03-11 20:43:40,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-11 20:43:40,940 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.0 percent of original size [2021-03-11 20:43:40,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-11 20:43:40,969 INFO L142 QuantifierPusher]: treesize reduction 37, result has 54.3 percent of original size [2021-03-11 20:43:40,969 INFO L147 QuantifierPusher]: treesize reduction 6, result has 86.4 percent of original size 38 [2021-03-11 20:43:40,999 INFO L142 QuantifierPusher]: treesize reduction 37, result has 51.3 percent of original size [2021-03-11 20:43:40,999 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-11 20:43:41,004 INFO L142 QuantifierPusher]: treesize reduction 37, result has 47.1 percent of original size [2021-03-11 20:43:41,005 INFO L147 QuantifierPusher]: treesize reduction 6, result has 81.8 percent of original size 27 [2021-03-11 20:43:41,033 INFO L142 QuantifierPusher]: treesize reduction 37, result has 56.5 percent of original size [2021-03-11 20:43:41,033 INFO L147 QuantifierPusher]: treesize reduction 6, result has 87.5 percent of original size 42 [2021-03-11 20:43:41,066 INFO L142 QuantifierPusher]: treesize reduction 15, result has 68.1 percent of original size [2021-03-11 20:43:41,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:43:41,083 INFO L142 QuantifierPusher]: treesize reduction 29, result has 68.1 percent of original size [2021-03-11 20:43:41,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-11 20:43:41,122 INFO L142 QuantifierPusher]: treesize reduction 29, result has 64.2 percent of original size [2021-03-11 20:43:41,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-11 20:43:41,133 INFO L142 QuantifierPusher]: treesize reduction 48, result has 51.0 percent of original size [2021-03-11 20:43:41,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:43:41,173 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.7 percent of original size [2021-03-11 20:43:41,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:43:41,208 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-11 20:43:41,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 20:43:41,222 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:41,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:41,237 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:41,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:41,237 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:41,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:41,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:41,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572292750] [2021-03-11 20:43:41,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:41,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 20:43:41,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266334044] [2021-03-11 20:43:41,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-11 20:43:41,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:41,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-11 20:43:41,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-03-11 20:43:41,254 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 326 [2021-03-11 20:43:41,255 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 78 transitions, 900 flow. Second operand has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:41,255 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:41,255 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 326 [2021-03-11 20:43:41,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:41,807 INFO L129 PetriNetUnfolder]: 71/306 cut-off events. [2021-03-11 20:43:41,808 INFO L130 PetriNetUnfolder]: For 1523/1526 co-relation queries the response was YES. [2021-03-11 20:43:41,808 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1503 conditions, 306 events. 71/306 cut-off events. For 1523/1526 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1770 event pairs, 53 based on Foata normal form. 5/311 useless extension candidates. Maximal degree in co-relation 1460. Up to 199 conditions per place. [2021-03-11 20:43:41,809 INFO L132 encePairwiseOnDemand]: 313/326 looper letters, 44 selfloop transitions, 19 changer transitions 21/89 dead transitions. [2021-03-11 20:43:41,809 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 89 transitions, 1096 flow [2021-03-11 20:43:41,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 20:43:41,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 20:43:41,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1831 transitions. [2021-03-11 20:43:41,812 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4680470347648262 [2021-03-11 20:43:41,812 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1831 transitions. [2021-03-11 20:43:41,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1831 transitions. [2021-03-11 20:43:41,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:41,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1831 transitions. [2021-03-11 20:43:41,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 152.58333333333334) internal successors, (1831), 12 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:41,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 326.0) internal successors, (4238), 13 states have internal predecessors, (4238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:41,816 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 326.0) internal successors, (4238), 13 states have internal predecessors, (4238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:41,816 INFO L185 Difference]: Start difference. First operand has 129 places, 78 transitions, 900 flow. Second operand 12 states and 1831 transitions. [2021-03-11 20:43:41,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 89 transitions, 1096 flow [2021-03-11 20:43:41,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 89 transitions, 1033 flow, removed 7 selfloop flow, removed 11 redundant places. [2021-03-11 20:43:41,823 INFO L241 Difference]: Finished difference. Result has 124 places, 63 transitions, 678 flow [2021-03-11 20:43:41,823 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=678, PETRI_PLACES=124, PETRI_TRANSITIONS=63} [2021-03-11 20:43:41,823 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 87 predicate places. [2021-03-11 20:43:41,823 INFO L480 AbstractCegarLoop]: Abstraction has has 124 places, 63 transitions, 678 flow [2021-03-11 20:43:41,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:41,824 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:41,824 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] [2021-03-11 20:43:41,824 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-11 20:43:41,824 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:41,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:41,824 INFO L82 PathProgramCache]: Analyzing trace with hash 2129498664, now seen corresponding path program 10 times [2021-03-11 20:43:41,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:41,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267252115] [2021-03-11 20:43:41,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:41,901 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-11 20:43:41,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:43:41,910 INFO L142 QuantifierPusher]: treesize reduction 18, result has 58.1 percent of original size [2021-03-11 20:43:41,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 20:43:41,920 INFO L142 QuantifierPusher]: treesize reduction 18, result has 57.1 percent of original size [2021-03-11 20:43:41,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 20:43:41,929 INFO L142 QuantifierPusher]: treesize reduction 49, result has 43.0 percent of original size [2021-03-11 20:43:41,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 20:43:41,949 INFO L142 QuantifierPusher]: treesize reduction 49, result has 39.5 percent of original size [2021-03-11 20:43:41,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:43:41,956 INFO L142 QuantifierPusher]: treesize reduction 49, result has 34.7 percent of original size [2021-03-11 20:43:41,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 20:43:41,972 INFO L142 QuantifierPusher]: treesize reduction 49, result has 45.6 percent of original size [2021-03-11 20:43:41,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:43:41,994 INFO L142 QuantifierPusher]: treesize reduction 18, result has 63.3 percent of original size [2021-03-11 20:43:41,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:43:42,013 INFO L142 QuantifierPusher]: treesize reduction 29, result has 67.8 percent of original size [2021-03-11 20:43:42,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 20:43:42,053 INFO L142 QuantifierPusher]: treesize reduction 29, result has 63.7 percent of original size [2021-03-11 20:43:42,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 20:43:42,065 INFO L142 QuantifierPusher]: treesize reduction 29, result has 63.7 percent of original size [2021-03-11 20:43:42,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 20:43:42,077 INFO L142 QuantifierPusher]: treesize reduction 48, result has 50.5 percent of original size [2021-03-11 20:43:42,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 20:43:42,127 INFO L142 QuantifierPusher]: treesize reduction 29, result has 59.2 percent of original size [2021-03-11 20:43:42,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:43:42,164 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:42,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:42,180 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:42,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:42,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:42,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267252115] [2021-03-11 20:43:42,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:42,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 20:43:42,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102588417] [2021-03-11 20:43:42,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-11 20:43:42,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:42,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-11 20:43:42,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-03-11 20:43:42,198 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 326 [2021-03-11 20:43:42,199 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 63 transitions, 678 flow. Second operand has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:42,199 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:42,199 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 326 [2021-03-11 20:43:42,199 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:42,723 INFO L129 PetriNetUnfolder]: 61/247 cut-off events. [2021-03-11 20:43:42,723 INFO L130 PetriNetUnfolder]: For 1062/1064 co-relation queries the response was YES. [2021-03-11 20:43:42,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1180 conditions, 247 events. 61/247 cut-off events. For 1062/1064 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1331 event pairs, 41 based on Foata normal form. 3/250 useless extension candidates. Maximal degree in co-relation 1141. Up to 145 conditions per place. [2021-03-11 20:43:42,725 INFO L132 encePairwiseOnDemand]: 314/326 looper letters, 47 selfloop transitions, 19 changer transitions 1/72 dead transitions. [2021-03-11 20:43:42,725 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 72 transitions, 853 flow [2021-03-11 20:43:42,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 20:43:42,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 20:43:42,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1821 transitions. [2021-03-11 20:43:42,728 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.46549079754601225 [2021-03-11 20:43:42,728 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1821 transitions. [2021-03-11 20:43:42,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1821 transitions. [2021-03-11 20:43:42,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:42,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1821 transitions. [2021-03-11 20:43:42,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 151.75) internal successors, (1821), 12 states have internal predecessors, (1821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:42,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 326.0) internal successors, (4238), 13 states have internal predecessors, (4238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:42,732 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 326.0) internal successors, (4238), 13 states have internal predecessors, (4238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:42,732 INFO L185 Difference]: Start difference. First operand has 124 places, 63 transitions, 678 flow. Second operand 12 states and 1821 transitions. [2021-03-11 20:43:42,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 72 transitions, 853 flow [2021-03-11 20:43:42,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 72 transitions, 765 flow, removed 3 selfloop flow, removed 22 redundant places. [2021-03-11 20:43:42,736 INFO L241 Difference]: Finished difference. Result has 112 places, 65 transitions, 652 flow [2021-03-11 20:43:42,736 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=652, PETRI_PLACES=112, PETRI_TRANSITIONS=65} [2021-03-11 20:43:42,737 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 75 predicate places. [2021-03-11 20:43:42,737 INFO L480 AbstractCegarLoop]: Abstraction has has 112 places, 65 transitions, 652 flow [2021-03-11 20:43:42,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:42,737 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:42,737 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:43:42,737 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-11 20:43:42,737 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:42,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:42,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1097224354, now seen corresponding path program 11 times [2021-03-11 20:43:42,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:42,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015308275] [2021-03-11 20:43:42,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:42,814 INFO L142 QuantifierPusher]: treesize reduction 19, result has 68.9 percent of original size [2021-03-11 20:43:42,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:43:42,834 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-11 20:43:42,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 20:43:42,853 INFO L142 QuantifierPusher]: treesize reduction 56, result has 51.3 percent of original size [2021-03-11 20:43:42,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 20:43:42,889 INFO L142 QuantifierPusher]: treesize reduction 56, result has 50.9 percent of original size [2021-03-11 20:43:42,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-11 20:43:42,926 INFO L142 QuantifierPusher]: treesize reduction 56, result has 48.6 percent of original size [2021-03-11 20:43:42,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 20:43:42,932 INFO L142 QuantifierPusher]: treesize reduction 56, result has 45.6 percent of original size [2021-03-11 20:43:42,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-11 20:43:42,969 INFO L142 QuantifierPusher]: treesize reduction 56, result has 52.5 percent of original size [2021-03-11 20:43:42,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-11 20:43:43,009 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 20:43:43,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:43:43,038 INFO L142 QuantifierPusher]: treesize reduction 28, result has 60.0 percent of original size [2021-03-11 20:43:43,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:43:43,055 INFO L142 QuantifierPusher]: treesize reduction 28, result has 53.3 percent of original size [2021-03-11 20:43:43,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:43:43,065 INFO L142 QuantifierPusher]: treesize reduction 47, result has 39.0 percent of original size [2021-03-11 20:43:43,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 20:43:43,090 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-11 20:43:43,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 20:43:43,107 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:43,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:43,122 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:43,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:43,122 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:43,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:43,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:43,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015308275] [2021-03-11 20:43:43,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:43,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 20:43:43,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881678858] [2021-03-11 20:43:43,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-11 20:43:43,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:43,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-11 20:43:43,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-03-11 20:43:43,138 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 326 [2021-03-11 20:43:43,139 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 65 transitions, 652 flow. Second operand has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:43,139 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:43,139 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 326 [2021-03-11 20:43:43,139 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:43,714 INFO L129 PetriNetUnfolder]: 70/286 cut-off events. [2021-03-11 20:43:43,714 INFO L130 PetriNetUnfolder]: For 1134/1136 co-relation queries the response was YES. [2021-03-11 20:43:43,715 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1340 conditions, 286 events. 70/286 cut-off events. For 1134/1136 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1691 event pairs, 45 based on Foata normal form. 2/288 useless extension candidates. Maximal degree in co-relation 1305. Up to 184 conditions per place. [2021-03-11 20:43:43,715 INFO L132 encePairwiseOnDemand]: 315/326 looper letters, 51 selfloop transitions, 6 changer transitions 23/85 dead transitions. [2021-03-11 20:43:43,715 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 85 transitions, 975 flow [2021-03-11 20:43:43,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 20:43:43,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 20:43:43,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1675 transitions. [2021-03-11 20:43:43,717 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.46709425543781374 [2021-03-11 20:43:43,717 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1675 transitions. [2021-03-11 20:43:43,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1675 transitions. [2021-03-11 20:43:43,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:43,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1675 transitions. [2021-03-11 20:43:43,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 152.27272727272728) internal successors, (1675), 11 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:43,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 326.0) internal successors, (3912), 12 states have internal predecessors, (3912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:43,720 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 326.0) internal successors, (3912), 12 states have internal predecessors, (3912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:43,720 INFO L185 Difference]: Start difference. First operand has 112 places, 65 transitions, 652 flow. Second operand 11 states and 1675 transitions. [2021-03-11 20:43:43,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 85 transitions, 975 flow [2021-03-11 20:43:43,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 85 transitions, 902 flow, removed 4 selfloop flow, removed 10 redundant places. [2021-03-11 20:43:43,725 INFO L241 Difference]: Finished difference. Result has 118 places, 62 transitions, 582 flow [2021-03-11 20:43:43,725 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=582, PETRI_PLACES=118, PETRI_TRANSITIONS=62} [2021-03-11 20:43:43,725 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 81 predicate places. [2021-03-11 20:43:43,725 INFO L480 AbstractCegarLoop]: Abstraction has has 118 places, 62 transitions, 582 flow [2021-03-11 20:43:43,725 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:43,725 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:43,725 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] [2021-03-11 20:43:43,725 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-11 20:43:43,725 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:43,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:43,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1223324326, now seen corresponding path program 12 times [2021-03-11 20:43:43,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:43,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979664461] [2021-03-11 20:43:43,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:43,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:43,779 INFO L142 QuantifierPusher]: treesize reduction 15, result has 68.8 percent of original size [2021-03-11 20:43:43,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:43:43,789 INFO L142 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size [2021-03-11 20:43:43,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 20:43:43,799 INFO L142 QuantifierPusher]: treesize reduction 53, result has 48.0 percent of original size [2021-03-11 20:43:43,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 20:43:43,829 INFO L142 QuantifierPusher]: treesize reduction 53, result has 45.4 percent of original size [2021-03-11 20:43:43,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-11 20:43:43,835 INFO L142 QuantifierPusher]: treesize reduction 53, result has 41.8 percent of original size [2021-03-11 20:43:43,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:43:43,864 INFO L142 QuantifierPusher]: treesize reduction 53, result has 41.1 percent of original size [2021-03-11 20:43:43,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 20:43:43,894 INFO L142 QuantifierPusher]: treesize reduction 53, result has 49.5 percent of original size [2021-03-11 20:43:43,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-11 20:43:43,930 INFO L142 QuantifierPusher]: treesize reduction 15, result has 67.4 percent of original size [2021-03-11 20:43:43,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:43:43,947 INFO L142 QuantifierPusher]: treesize reduction 28, result has 60.0 percent of original size [2021-03-11 20:43:43,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:43:43,965 INFO L142 QuantifierPusher]: treesize reduction 28, result has 53.3 percent of original size [2021-03-11 20:43:43,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:43:43,976 INFO L142 QuantifierPusher]: treesize reduction 47, result has 39.0 percent of original size [2021-03-11 20:43:43,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 20:43:44,002 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-11 20:43:44,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 20:43:44,018 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:44,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:44,033 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:44,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:44,033 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:44,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:44,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:44,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979664461] [2021-03-11 20:43:44,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:44,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 20:43:44,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563899248] [2021-03-11 20:43:44,047 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-11 20:43:44,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:44,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-11 20:43:44,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-03-11 20:43:44,049 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 326 [2021-03-11 20:43:44,050 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 62 transitions, 582 flow. Second operand has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:44,050 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:44,050 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 326 [2021-03-11 20:43:44,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:44,597 INFO L129 PetriNetUnfolder]: 63/254 cut-off events. [2021-03-11 20:43:44,597 INFO L130 PetriNetUnfolder]: For 914/916 co-relation queries the response was YES. [2021-03-11 20:43:44,598 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1206 conditions, 254 events. 63/254 cut-off events. For 914/916 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1410 event pairs, 45 based on Foata normal form. 1/255 useless extension candidates. Maximal degree in co-relation 1166. Up to 181 conditions per place. [2021-03-11 20:43:44,598 INFO L132 encePairwiseOnDemand]: 315/326 looper letters, 49 selfloop transitions, 8 changer transitions 18/80 dead transitions. [2021-03-11 20:43:44,598 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 80 transitions, 888 flow [2021-03-11 20:43:44,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 20:43:44,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 20:43:44,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1972 transitions. [2021-03-11 20:43:44,606 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4653138272770175 [2021-03-11 20:43:44,606 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1972 transitions. [2021-03-11 20:43:44,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1972 transitions. [2021-03-11 20:43:44,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:44,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1972 transitions. [2021-03-11 20:43:44,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 151.69230769230768) internal successors, (1972), 13 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:44,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 326.0) internal successors, (4564), 14 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:44,610 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 326.0) internal successors, (4564), 14 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:44,610 INFO L185 Difference]: Start difference. First operand has 118 places, 62 transitions, 582 flow. Second operand 13 states and 1972 transitions. [2021-03-11 20:43:44,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 80 transitions, 888 flow [2021-03-11 20:43:44,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 80 transitions, 798 flow, removed 25 selfloop flow, removed 13 redundant places. [2021-03-11 20:43:44,614 INFO L241 Difference]: Finished difference. Result has 114 places, 62 transitions, 550 flow [2021-03-11 20:43:44,614 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=550, PETRI_PLACES=114, PETRI_TRANSITIONS=62} [2021-03-11 20:43:44,615 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 77 predicate places. [2021-03-11 20:43:44,615 INFO L480 AbstractCegarLoop]: Abstraction has has 114 places, 62 transitions, 550 flow [2021-03-11 20:43:44,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:44,615 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:44,615 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] [2021-03-11 20:43:44,615 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-11 20:43:44,615 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:44,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:44,616 INFO L82 PathProgramCache]: Analyzing trace with hash 269775422, now seen corresponding path program 13 times [2021-03-11 20:43:44,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:44,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962578461] [2021-03-11 20:43:44,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:44,674 INFO L142 QuantifierPusher]: treesize reduction 15, result has 68.8 percent of original size [2021-03-11 20:43:44,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:43:44,684 INFO L142 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size [2021-03-11 20:43:44,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 20:43:44,695 INFO L142 QuantifierPusher]: treesize reduction 53, result has 48.0 percent of original size [2021-03-11 20:43:44,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 20:43:44,728 INFO L142 QuantifierPusher]: treesize reduction 53, result has 45.4 percent of original size [2021-03-11 20:43:44,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-11 20:43:44,734 INFO L142 QuantifierPusher]: treesize reduction 53, result has 41.8 percent of original size [2021-03-11 20:43:44,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:43:44,766 INFO L142 QuantifierPusher]: treesize reduction 53, result has 50.0 percent of original size [2021-03-11 20:43:44,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 20:43:44,802 INFO L142 QuantifierPusher]: treesize reduction 53, result has 49.5 percent of original size [2021-03-11 20:43:44,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-11 20:43:44,839 INFO L142 QuantifierPusher]: treesize reduction 15, result has 67.4 percent of original size [2021-03-11 20:43:44,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:43:44,856 INFO L142 QuantifierPusher]: treesize reduction 28, result has 60.0 percent of original size [2021-03-11 20:43:44,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:43:44,875 INFO L142 QuantifierPusher]: treesize reduction 28, result has 53.3 percent of original size [2021-03-11 20:43:44,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:43:44,888 INFO L142 QuantifierPusher]: treesize reduction 47, result has 39.0 percent of original size [2021-03-11 20:43:44,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 20:43:44,915 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-11 20:43:44,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 20:43:44,931 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:44,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:44,945 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:44,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:44,946 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:44,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:44,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:44,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962578461] [2021-03-11 20:43:44,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:44,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 20:43:44,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885920301] [2021-03-11 20:43:44,960 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-11 20:43:44,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:44,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-11 20:43:44,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-03-11 20:43:44,962 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 326 [2021-03-11 20:43:44,963 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 62 transitions, 550 flow. Second operand has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:44,963 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:44,963 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 326 [2021-03-11 20:43:44,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:45,539 INFO L129 PetriNetUnfolder]: 52/208 cut-off events. [2021-03-11 20:43:45,540 INFO L130 PetriNetUnfolder]: For 591/593 co-relation queries the response was YES. [2021-03-11 20:43:45,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 953 conditions, 208 events. 52/208 cut-off events. For 591/593 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1089 event pairs, 19 based on Foata normal form. 1/209 useless extension candidates. Maximal degree in co-relation 915. Up to 110 conditions per place. [2021-03-11 20:43:45,541 INFO L132 encePairwiseOnDemand]: 315/326 looper letters, 44 selfloop transitions, 10 changer transitions 19/78 dead transitions. [2021-03-11 20:43:45,541 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 78 transitions, 800 flow [2021-03-11 20:43:45,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 20:43:45,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 20:43:45,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1827 transitions. [2021-03-11 20:43:45,543 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.46702453987730064 [2021-03-11 20:43:45,543 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1827 transitions. [2021-03-11 20:43:45,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1827 transitions. [2021-03-11 20:43:45,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:45,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1827 transitions. [2021-03-11 20:43:45,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 152.25) internal successors, (1827), 12 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:45,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 326.0) internal successors, (4238), 13 states have internal predecessors, (4238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:45,546 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 326.0) internal successors, (4238), 13 states have internal predecessors, (4238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:45,546 INFO L185 Difference]: Start difference. First operand has 114 places, 62 transitions, 550 flow. Second operand 12 states and 1827 transitions. [2021-03-11 20:43:45,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 78 transitions, 800 flow [2021-03-11 20:43:45,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 78 transitions, 733 flow, removed 16 selfloop flow, removed 11 redundant places. [2021-03-11 20:43:45,549 INFO L241 Difference]: Finished difference. Result has 108 places, 58 transitions, 481 flow [2021-03-11 20:43:45,550 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=481, PETRI_PLACES=108, PETRI_TRANSITIONS=58} [2021-03-11 20:43:45,550 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 71 predicate places. [2021-03-11 20:43:45,550 INFO L480 AbstractCegarLoop]: Abstraction has has 108 places, 58 transitions, 481 flow [2021-03-11 20:43:45,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:45,550 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:45,550 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] [2021-03-11 20:43:45,550 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-11 20:43:45,550 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:45,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:45,550 INFO L82 PathProgramCache]: Analyzing trace with hash -780428640, now seen corresponding path program 14 times [2021-03-11 20:43:45,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:45,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195659292] [2021-03-11 20:43:45,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:45,605 INFO L142 QuantifierPusher]: treesize reduction 13, result has 82.2 percent of original size [2021-03-11 20:43:45,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-11 20:43:45,627 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.0 percent of original size [2021-03-11 20:43:45,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-11 20:43:45,650 INFO L142 QuantifierPusher]: treesize reduction 53, result has 48.0 percent of original size [2021-03-11 20:43:45,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 20:43:45,682 INFO L142 QuantifierPusher]: treesize reduction 53, result has 45.4 percent of original size [2021-03-11 20:43:45,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-11 20:43:45,688 INFO L142 QuantifierPusher]: treesize reduction 53, result has 41.8 percent of original size [2021-03-11 20:43:45,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:43:45,718 INFO L142 QuantifierPusher]: treesize reduction 53, result has 50.0 percent of original size [2021-03-11 20:43:45,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 20:43:45,754 INFO L142 QuantifierPusher]: treesize reduction 15, result has 68.1 percent of original size [2021-03-11 20:43:45,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:43:45,770 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 20:43:45,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:43:45,786 INFO L142 QuantifierPusher]: treesize reduction 27, result has 55.0 percent of original size [2021-03-11 20:43:45,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:43:45,795 INFO L142 QuantifierPusher]: treesize reduction 46, result has 40.3 percent of original size [2021-03-11 20:43:45,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:43:45,820 INFO L142 QuantifierPusher]: treesize reduction 46, result has 39.5 percent of original size [2021-03-11 20:43:45,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 20:43:45,858 INFO L142 QuantifierPusher]: treesize reduction 27, result has 46.0 percent of original size [2021-03-11 20:43:45,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 20:43:45,875 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:45,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:45,890 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:45,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:45,891 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:45,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:45,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:45,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195659292] [2021-03-11 20:43:45,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:45,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 20:43:45,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173534712] [2021-03-11 20:43:45,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-11 20:43:45,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:45,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-11 20:43:45,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-03-11 20:43:45,911 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 326 [2021-03-11 20:43:45,912 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 58 transitions, 481 flow. Second operand has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:45,912 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:45,912 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 326 [2021-03-11 20:43:45,912 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:46,411 INFO L129 PetriNetUnfolder]: 45/195 cut-off events. [2021-03-11 20:43:46,412 INFO L130 PetriNetUnfolder]: For 485/488 co-relation queries the response was YES. [2021-03-11 20:43:46,412 INFO L84 FinitePrefix]: Finished finitePrefix Result has 838 conditions, 195 events. 45/195 cut-off events. For 485/488 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1029 event pairs, 22 based on Foata normal form. 2/197 useless extension candidates. Maximal degree in co-relation 804. Up to 120 conditions per place. [2021-03-11 20:43:46,413 INFO L132 encePairwiseOnDemand]: 314/326 looper letters, 42 selfloop transitions, 12 changer transitions 18/77 dead transitions. [2021-03-11 20:43:46,413 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 77 transitions, 749 flow [2021-03-11 20:43:46,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 20:43:46,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 20:43:46,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1972 transitions. [2021-03-11 20:43:46,414 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4653138272770175 [2021-03-11 20:43:46,414 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1972 transitions. [2021-03-11 20:43:46,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1972 transitions. [2021-03-11 20:43:46,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:46,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1972 transitions. [2021-03-11 20:43:46,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 151.69230769230768) internal successors, (1972), 13 states have internal predecessors, (1972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:46,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 326.0) internal successors, (4564), 14 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:46,418 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 326.0) internal successors, (4564), 14 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:46,418 INFO L185 Difference]: Start difference. First operand has 108 places, 58 transitions, 481 flow. Second operand 13 states and 1972 transitions. [2021-03-11 20:43:46,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 77 transitions, 749 flow [2021-03-11 20:43:46,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 77 transitions, 702 flow, removed 7 selfloop flow, removed 10 redundant places. [2021-03-11 20:43:46,421 INFO L241 Difference]: Finished difference. Result has 106 places, 58 transitions, 476 flow [2021-03-11 20:43:46,421 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=445, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=476, PETRI_PLACES=106, PETRI_TRANSITIONS=58} [2021-03-11 20:43:46,422 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 69 predicate places. [2021-03-11 20:43:46,422 INFO L480 AbstractCegarLoop]: Abstraction has has 106 places, 58 transitions, 476 flow [2021-03-11 20:43:46,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:46,422 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:46,422 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] [2021-03-11 20:43:46,422 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-11 20:43:46,422 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:46,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:46,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1400988000, now seen corresponding path program 15 times [2021-03-11 20:43:46,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:46,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579283084] [2021-03-11 20:43:46,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:46,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:46,472 INFO L142 QuantifierPusher]: treesize reduction 15, result has 68.8 percent of original size [2021-03-11 20:43:46,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:43:46,482 INFO L142 QuantifierPusher]: treesize reduction 15, result has 62.5 percent of original size [2021-03-11 20:43:46,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 20:43:46,492 INFO L142 QuantifierPusher]: treesize reduction 53, result has 48.0 percent of original size [2021-03-11 20:43:46,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 20:43:46,523 INFO L142 QuantifierPusher]: treesize reduction 53, result has 45.4 percent of original size [2021-03-11 20:43:46,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-11 20:43:46,529 INFO L142 QuantifierPusher]: treesize reduction 53, result has 41.8 percent of original size [2021-03-11 20:43:46,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:43:46,559 INFO L142 QuantifierPusher]: treesize reduction 53, result has 50.0 percent of original size [2021-03-11 20:43:46,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 20:43:46,593 INFO L142 QuantifierPusher]: treesize reduction 15, result has 68.1 percent of original size [2021-03-11 20:43:46,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:43:46,609 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 20:43:46,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:43:46,624 INFO L142 QuantifierPusher]: treesize reduction 27, result has 60.9 percent of original size [2021-03-11 20:43:46,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:43:46,641 INFO L142 QuantifierPusher]: treesize reduction 27, result has 54.2 percent of original size [2021-03-11 20:43:46,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:43:46,651 INFO L142 QuantifierPusher]: treesize reduction 46, result has 39.5 percent of original size [2021-03-11 20:43:46,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 20:43:46,676 INFO L142 QuantifierPusher]: treesize reduction 27, result has 46.0 percent of original size [2021-03-11 20:43:46,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 20:43:46,692 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:46,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:46,706 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:46,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:46,707 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:46,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:46,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:46,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579283084] [2021-03-11 20:43:46,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:46,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 20:43:46,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143188718] [2021-03-11 20:43:46,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-11 20:43:46,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:46,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-11 20:43:46,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-03-11 20:43:46,723 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 326 [2021-03-11 20:43:46,723 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 58 transitions, 476 flow. Second operand has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:46,723 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:46,723 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 326 [2021-03-11 20:43:46,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:47,229 INFO L129 PetriNetUnfolder]: 28/145 cut-off events. [2021-03-11 20:43:47,229 INFO L130 PetriNetUnfolder]: For 390/392 co-relation queries the response was YES. [2021-03-11 20:43:47,229 INFO L84 FinitePrefix]: Finished finitePrefix Result has 638 conditions, 145 events. 28/145 cut-off events. For 390/392 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 654 event pairs, 21 based on Foata normal form. 2/147 useless extension candidates. Maximal degree in co-relation 607. Up to 87 conditions per place. [2021-03-11 20:43:47,230 INFO L132 encePairwiseOnDemand]: 315/326 looper letters, 39 selfloop transitions, 8 changer transitions 10/62 dead transitions. [2021-03-11 20:43:47,230 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 62 transitions, 608 flow [2021-03-11 20:43:47,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 20:43:47,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 20:43:47,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1667 transitions. [2021-03-11 20:43:47,232 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4648633575013943 [2021-03-11 20:43:47,232 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1667 transitions. [2021-03-11 20:43:47,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1667 transitions. [2021-03-11 20:43:47,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:47,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1667 transitions. [2021-03-11 20:43:47,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 151.54545454545453) internal successors, (1667), 11 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:47,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 326.0) internal successors, (3912), 12 states have internal predecessors, (3912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:47,235 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 326.0) internal successors, (3912), 12 states have internal predecessors, (3912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:47,235 INFO L185 Difference]: Start difference. First operand has 106 places, 58 transitions, 476 flow. Second operand 11 states and 1667 transitions. [2021-03-11 20:43:47,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 62 transitions, 608 flow [2021-03-11 20:43:47,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 62 transitions, 545 flow, removed 8 selfloop flow, removed 12 redundant places. [2021-03-11 20:43:47,237 INFO L241 Difference]: Finished difference. Result has 102 places, 52 transitions, 382 flow [2021-03-11 20:43:47,237 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=382, PETRI_PLACES=102, PETRI_TRANSITIONS=52} [2021-03-11 20:43:47,238 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 65 predicate places. [2021-03-11 20:43:47,238 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 52 transitions, 382 flow [2021-03-11 20:43:47,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:47,238 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:47,238 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] [2021-03-11 20:43:47,238 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-11 20:43:47,238 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:47,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:47,238 INFO L82 PathProgramCache]: Analyzing trace with hash 160296160, now seen corresponding path program 16 times [2021-03-11 20:43:47,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:47,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319519011] [2021-03-11 20:43:47,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:47,299 INFO L142 QuantifierPusher]: treesize reduction 13, result has 82.2 percent of original size [2021-03-11 20:43:47,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-11 20:43:47,322 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.0 percent of original size [2021-03-11 20:43:47,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-11 20:43:47,347 INFO L142 QuantifierPusher]: treesize reduction 53, result has 48.0 percent of original size [2021-03-11 20:43:47,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 20:43:47,382 INFO L142 QuantifierPusher]: treesize reduction 53, result has 45.4 percent of original size [2021-03-11 20:43:47,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-11 20:43:47,388 INFO L142 QuantifierPusher]: treesize reduction 53, result has 41.8 percent of original size [2021-03-11 20:43:47,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:43:47,418 INFO L142 QuantifierPusher]: treesize reduction 53, result has 50.0 percent of original size [2021-03-11 20:43:47,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 20:43:47,454 INFO L142 QuantifierPusher]: treesize reduction 15, result has 68.1 percent of original size [2021-03-11 20:43:47,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:43:47,471 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 20:43:47,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:43:47,488 INFO L142 QuantifierPusher]: treesize reduction 27, result has 55.0 percent of original size [2021-03-11 20:43:47,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:43:47,498 INFO L142 QuantifierPusher]: treesize reduction 46, result has 40.3 percent of original size [2021-03-11 20:43:47,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:43:47,524 INFO L142 QuantifierPusher]: treesize reduction 27, result has 47.1 percent of original size [2021-03-11 20:43:47,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 20:43:47,540 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-11 20:43:47,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 20:43:47,554 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:47,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:47,569 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:47,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:47,570 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:47,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:47,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:47,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319519011] [2021-03-11 20:43:47,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:47,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-11 20:43:47,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555843616] [2021-03-11 20:43:47,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-11 20:43:47,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:47,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-11 20:43:47,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-03-11 20:43:47,585 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 326 [2021-03-11 20:43:47,586 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 52 transitions, 382 flow. Second operand has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:47,586 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:47,586 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 326 [2021-03-11 20:43:47,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:48,021 INFO L129 PetriNetUnfolder]: 24/111 cut-off events. [2021-03-11 20:43:48,022 INFO L130 PetriNetUnfolder]: For 245/247 co-relation queries the response was YES. [2021-03-11 20:43:48,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 111 events. 24/111 cut-off events. For 245/247 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 396 event pairs, 14 based on Foata normal form. 1/112 useless extension candidates. Maximal degree in co-relation 441. Up to 72 conditions per place. [2021-03-11 20:43:48,022 INFO L132 encePairwiseOnDemand]: 315/326 looper letters, 32 selfloop transitions, 2 changer transitions 15/54 dead transitions. [2021-03-11 20:43:48,022 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 54 transitions, 477 flow [2021-03-11 20:43:48,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-11 20:43:48,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-11 20:43:48,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1663 transitions. [2021-03-11 20:43:48,024 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4637479085331846 [2021-03-11 20:43:48,024 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1663 transitions. [2021-03-11 20:43:48,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1663 transitions. [2021-03-11 20:43:48,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:48,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1663 transitions. [2021-03-11 20:43:48,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 151.1818181818182) internal successors, (1663), 11 states have internal predecessors, (1663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:48,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 326.0) internal successors, (3912), 12 states have internal predecessors, (3912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:48,027 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 326.0) internal successors, (3912), 12 states have internal predecessors, (3912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:48,027 INFO L185 Difference]: Start difference. First operand has 102 places, 52 transitions, 382 flow. Second operand 11 states and 1663 transitions. [2021-03-11 20:43:48,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 54 transitions, 477 flow [2021-03-11 20:43:48,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 54 transitions, 429 flow, removed 1 selfloop flow, removed 13 redundant places. [2021-03-11 20:43:48,029 INFO L241 Difference]: Finished difference. Result has 92 places, 39 transitions, 256 flow [2021-03-11 20:43:48,029 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=256, PETRI_PLACES=92, PETRI_TRANSITIONS=39} [2021-03-11 20:43:48,029 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 55 predicate places. [2021-03-11 20:43:48,029 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 39 transitions, 256 flow [2021-03-11 20:43:48,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 149.35714285714286) internal successors, (2091), 14 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:48,030 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:43:48,030 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] [2021-03-11 20:43:48,030 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-11 20:43:48,030 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 20:43:48,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:43:48,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1609300619, now seen corresponding path program 6 times [2021-03-11 20:43:48,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:43:48,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020892018] [2021-03-11 20:43:48,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:43:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:43:48,071 INFO L142 QuantifierPusher]: treesize reduction 18, result has 50.0 percent of original size [2021-03-11 20:43:48,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 20:43:48,079 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-11 20:43:48,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:48,087 INFO L142 QuantifierPusher]: treesize reduction 28, result has 54.8 percent of original size [2021-03-11 20:43:48,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 20:43:48,110 INFO L142 QuantifierPusher]: treesize reduction 28, result has 60.6 percent of original size [2021-03-11 20:43:48,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:43:48,141 INFO L142 QuantifierPusher]: treesize reduction 28, result has 64.1 percent of original size [2021-03-11 20:43:48,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:43:48,150 INFO L142 QuantifierPusher]: treesize reduction 35, result has 55.7 percent of original size [2021-03-11 20:43:48,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-11 20:43:48,157 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-11 20:43:48,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 20:43:48,181 INFO L142 QuantifierPusher]: treesize reduction 28, result has 52.5 percent of original size [2021-03-11 20:43:48,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:43:48,197 INFO L142 QuantifierPusher]: treesize reduction 16, result has 69.2 percent of original size [2021-03-11 20:43:48,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 20:43:48,205 INFO L142 QuantifierPusher]: treesize reduction 16, result has 71.9 percent of original size [2021-03-11 20:43:48,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:43:48,231 INFO L142 QuantifierPusher]: treesize reduction 14, result has 77.4 percent of original size [2021-03-11 20:43:48,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 20:43:48,253 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-11 20:43:48,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 20:43:48,274 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-11 20:43:48,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:43:48,287 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:43:48,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:43:48,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:43:48,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020892018] [2021-03-11 20:43:48,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:43:48,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-11 20:43:48,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953163605] [2021-03-11 20:43:48,299 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-11 20:43:48,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:43:48,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-11 20:43:48,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-03-11 20:43:48,301 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 326 [2021-03-11 20:43:48,302 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 39 transitions, 256 flow. Second operand has 13 states, 13 states have (on average 150.46153846153845) internal successors, (1956), 13 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:48,302 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:43:48,302 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 326 [2021-03-11 20:43:48,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:43:48,519 INFO L129 PetriNetUnfolder]: 21/84 cut-off events. [2021-03-11 20:43:48,519 INFO L130 PetriNetUnfolder]: For 145/147 co-relation queries the response was YES. [2021-03-11 20:43:48,519 INFO L84 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 84 events. 21/84 cut-off events. For 145/147 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 262 event pairs, 9 based on Foata normal form. 3/87 useless extension candidates. Maximal degree in co-relation 327. Up to 64 conditions per place. [2021-03-11 20:43:48,519 INFO L132 encePairwiseOnDemand]: 320/326 looper letters, 0 selfloop transitions, 0 changer transitions 39/39 dead transitions. [2021-03-11 20:43:48,519 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 39 transitions, 321 flow [2021-03-11 20:43:48,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 20:43:48,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-11 20:43:48,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1064 transitions. [2021-03-11 20:43:48,520 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4662576687116564 [2021-03-11 20:43:48,520 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1064 transitions. [2021-03-11 20:43:48,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1064 transitions. [2021-03-11 20:43:48,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:43:48,521 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1064 transitions. [2021-03-11 20:43:48,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 152.0) internal successors, (1064), 7 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:48,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 326.0) internal successors, (2608), 8 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:48,523 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 326.0) internal successors, (2608), 8 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:48,523 INFO L185 Difference]: Start difference. First operand has 92 places, 39 transitions, 256 flow. Second operand 7 states and 1064 transitions. [2021-03-11 20:43:48,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 39 transitions, 321 flow [2021-03-11 20:43:48,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 39 transitions, 273 flow, removed 4 selfloop flow, removed 13 redundant places. [2021-03-11 20:43:48,524 INFO L241 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2021-03-11 20:43:48,524 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2021-03-11 20:43:48,524 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 26 predicate places. [2021-03-11 20:43:48,524 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 0 transitions, 0 flow [2021-03-11 20:43:48,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 150.46153846153845) internal successors, (1956), 13 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 20:43:48,525 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-11 20:43:48,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 08:43:48 BasicIcfg [2021-03-11 20:43:48,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 20:43:48,527 INFO L168 Benchmark]: Toolchain (without parser) took 87165.76 ms. Allocated memory was 337.6 MB in the beginning and 406.8 MB in the end (delta: 69.2 MB). Free memory was 299.2 MB in the beginning and 214.3 MB in the end (delta: 84.9 MB). Peak memory consumption was 155.5 MB. Max. memory is 16.0 GB. [2021-03-11 20:43:48,527 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 337.6 MB. Free memory was 319.1 MB in the beginning and 319.0 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 20:43:48,528 INFO L168 Benchmark]: CACSL2BoogieTranslator took 717.65 ms. Allocated memory is still 337.6 MB. Free memory was 298.6 MB in the beginning and 283.1 MB in the end (delta: 15.5 MB). Peak memory consumption was 85.1 MB. Max. memory is 16.0 GB. [2021-03-11 20:43:48,528 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.15 ms. Allocated memory is still 337.6 MB. Free memory was 283.1 MB in the beginning and 279.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-11 20:43:48,528 INFO L168 Benchmark]: Boogie Preprocessor took 29.28 ms. Allocated memory is still 337.6 MB. Free memory was 279.9 MB in the beginning and 276.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 20:43:48,528 INFO L168 Benchmark]: RCFGBuilder took 381.26 ms. Allocated memory is still 337.6 MB. Free memory was 276.8 MB in the beginning and 229.6 MB in the end (delta: 47.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. [2021-03-11 20:43:48,528 INFO L168 Benchmark]: TraceAbstraction took 85974.40 ms. Allocated memory was 337.6 MB in the beginning and 406.8 MB in the end (delta: 69.2 MB). Free memory was 229.6 MB in the beginning and 214.3 MB in the end (delta: 15.3 MB). Peak memory consumption was 83.5 MB. Max. memory is 16.0 GB. [2021-03-11 20:43:48,528 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 337.6 MB. Free memory was 319.1 MB in the beginning and 319.0 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 717.65 ms. Allocated memory is still 337.6 MB. Free memory was 298.6 MB in the beginning and 283.1 MB in the end (delta: 15.5 MB). Peak memory consumption was 85.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 55.15 ms. Allocated memory is still 337.6 MB. Free memory was 283.1 MB in the beginning and 279.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.28 ms. Allocated memory is still 337.6 MB. Free memory was 279.9 MB in the beginning and 276.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 381.26 ms. Allocated memory is still 337.6 MB. Free memory was 276.8 MB in the beginning and 229.6 MB in the end (delta: 47.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 85974.40 ms. Allocated memory was 337.6 MB in the beginning and 406.8 MB in the end (delta: 69.2 MB). Free memory was 229.6 MB in the beginning and 214.3 MB in the end (delta: 15.3 MB). Peak memory consumption was 83.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 65473.2ms, 150 PlacesBefore, 37 PlacesAfterwards, 152 TransitionsBefore, 34 TransitionsAfterwards, 2288 CoEnabledTransitionPairs, 8 FixpointIterations, 93 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 9 ConcurrentYvCompositions, 5 ChoiceCompositions, 162 TotalNumberOfCompositions, 5924 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2676, positive: 2443, positive conditional: 0, positive unconditional: 2443, negative: 233, negative conditional: 0, negative unconditional: 233, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1535, positive: 1481, positive conditional: 0, positive unconditional: 1481, negative: 54, negative conditional: 0, negative unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1535, positive: 1475, positive conditional: 0, positive unconditional: 1475, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 60, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 16, unknown conditional: 0, unknown unconditional: 16] , SemanticIndependenceRelation.Query Time [ms]: [ total: 49692, positive: 268, positive conditional: 0, positive unconditional: 268, negative: 1067, negative conditional: 0, negative unconditional: 1067, unknown: 48357, unknown conditional: 0, unknown unconditional: 48357] ], Cache Queries: [ total: 2676, positive: 962, positive conditional: 0, positive unconditional: 962, negative: 179, negative conditional: 0, negative unconditional: 179, unknown: 1535, unknown conditional: 0, unknown unconditional: 1535] , Statistics on independence cache: Total cache size (in pairs): 117, Positive cache size: 89, Positive conditional cache size: 0, Positive unconditional cache size: 89, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 140 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 1.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 85901.2ms, OverallIterations: 27, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 12409.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 65538.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 342 SDtfs, 768 SDslu, 747 SDs, 0 SdLazy, 7155 SolverSat, 602 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5270.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 448 GetRequests, 25 SyntacticMatches, 52 SemanticMatches, 371 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 809 ImplicationChecksByTransitivity, 9380.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1559occurred in iteration=13, InterpolantAutomatonStates: 259, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 44.3ms SsaConstructionTime, 469.2ms SatisfiabilityAnalysisTime, 7123.2ms InterpolantComputationTime, 528 NumberOfCodeBlocks, 528 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 501 ConstructedInterpolants, 0 QuantifiedInterpolants, 12263 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 proved your program to be correct! Received shutdown request...