/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-2_1-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 20:39:19,587 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 20:39:19,590 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 20:39:19,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 20:39:19,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 20:39:19,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 20:39:19,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 20:39:19,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 20:39:19,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 20:39:19,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 20:39:19,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 20:39:19,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 20:39:19,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 20:39:19,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 20:39:19,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 20:39:19,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 20:39:19,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 20:39:19,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 20:39:19,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 20:39:19,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 20:39:19,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 20:39:19,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 20:39:19,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 20:39:19,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 20:39:19,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 20:39:19,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 20:39:19,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 20:39:19,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 20:39:19,658 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 20:39:19,681 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 20:39:19,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 20:39:19,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 20:39:19,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 20:39:19,684 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 20:39:19,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 20:39:19,684 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 20:39:19,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 20:39:19,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 20:39:19,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 20:39:19,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 20:39:19,685 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 20:39:19,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 20:39:19,685 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 20:39:19,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 20:39:19,685 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 20:39:19,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 20:39:19,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 20:39:19,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 20:39:19,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 20:39:19,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 20:39:19,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 20:39:19,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 20:39:19,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 20:39:19,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 20:39:19,686 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 20:39:19,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 20:39:19,687 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 20:39:19,687 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 20:39:19,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 20:39:19,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 20:39:19,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 20:39:19,941 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 20:39:19,942 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 20:39:19,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2021-03-11 20:39:19,998 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68ba8bc2b/2c1133f1eb104b8f8536da8d11aac4df/FLAG085846f35 [2021-03-11 20:39:20,423 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 20:39:20,424 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2021-03-11 20:39:20,441 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68ba8bc2b/2c1133f1eb104b8f8536da8d11aac4df/FLAG085846f35 [2021-03-11 20:39:20,453 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68ba8bc2b/2c1133f1eb104b8f8536da8d11aac4df [2021-03-11 20:39:20,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 20:39:20,458 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 20:39:20,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 20:39:20,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 20:39:20,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 20:39:20,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 08:39:20" (1/1) ... [2021-03-11 20:39:20,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65d2d965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:20, skipping insertion in model container [2021-03-11 20:39:20,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 08:39:20" (1/1) ... [2021-03-11 20:39:20,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 20:39:20,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 20:39:20,905 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-2_1-container_of.i[76077,76090] [2021-03-11 20:39:20,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 20:39:20,921 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 20:39:20,950 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-2_1-container_of.i[76077,76090] [2021-03-11 20:39:20,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 20:39:21,128 INFO L208 MainTranslator]: Completed translation [2021-03-11 20:39:21,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:21 WrapperNode [2021-03-11 20:39:21,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 20:39:21,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 20:39:21,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 20:39:21,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 20:39:21,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:21" (1/1) ... [2021-03-11 20:39:21,168 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:21" (1/1) ... [2021-03-11 20:39:21,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 20:39:21,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 20:39:21,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 20:39:21,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 20:39:21,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:21" (1/1) ... [2021-03-11 20:39:21,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:21" (1/1) ... [2021-03-11 20:39:21,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:21" (1/1) ... [2021-03-11 20:39:21,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:21" (1/1) ... [2021-03-11 20:39:21,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:21" (1/1) ... [2021-03-11 20:39:21,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:21" (1/1) ... [2021-03-11 20:39:21,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:21" (1/1) ... [2021-03-11 20:39:21,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 20:39:21,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 20:39:21,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 20:39:21,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 20:39:21,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:21" (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 20:39:21,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 20:39:21,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 20:39:21,252 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-11 20:39:21,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-11 20:39:21,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 20:39:21,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 20:39:21,253 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-03-11 20:39:21,253 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-03-11 20:39:21,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 20:39:21,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 20:39:21,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 20:39:21,254 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 20:39:21,713 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 20:39:21,713 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-03-11 20:39:21,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 08:39:21 BoogieIcfgContainer [2021-03-11 20:39:21,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 20:39:21,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 20:39:21,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 20:39:21,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 20:39:21,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 08:39:20" (1/3) ... [2021-03-11 20:39:21,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11773c90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 08:39:21, skipping insertion in model container [2021-03-11 20:39:21,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 08:39:21" (2/3) ... [2021-03-11 20:39:21,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11773c90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 08:39:21, skipping insertion in model container [2021-03-11 20:39:21,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 08:39:21" (3/3) ... [2021-03-11 20:39:21,718 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2021-03-11 20:39:21,721 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 20:39:21,729 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-03-11 20:39:21,730 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 20:39:21,748 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,748 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,748 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,748 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,749 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,749 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,749 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,749 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,749 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,749 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,749 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,749 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,749 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,749 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,749 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,751 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,751 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,752 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,752 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,752 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,752 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,753 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,753 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,753 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,753 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,753 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,753 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,753 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,753 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,753 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,753 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,753 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,753 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,754 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,754 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,754 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,754 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,754 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,754 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,754 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,754 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,754 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,754 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,754 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,754 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,754 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,756 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,756 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,756 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,756 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,756 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,756 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,756 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,756 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,756 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,756 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,756 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,756 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,756 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,756 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,757 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,757 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,757 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,757 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,758 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,758 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,758 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,758 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,759 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,759 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,759 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,759 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,759 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,759 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,759 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,759 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,759 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,759 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,761 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,761 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,761 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,761 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,761 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,761 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,761 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,761 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,761 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,761 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,762 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,762 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,765 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,765 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,766 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,766 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,766 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,766 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,766 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,766 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,766 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,766 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,766 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,766 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 20:39:21,771 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-11 20:39:21,782 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-03-11 20:39:21,794 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 20:39:21,794 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 20:39:21,795 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 20:39:21,795 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 20:39:21,795 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 20:39:21,795 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 20:39:21,795 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 20:39:21,795 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 20:39:21,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 161 places, 165 transitions, 352 flow [2021-03-11 20:39:21,874 INFO L129 PetriNetUnfolder]: 11/205 cut-off events. [2021-03-11 20:39:21,874 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-11 20:39:21,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 205 events. 11/205 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 419 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 115. Up to 4 conditions per place. [2021-03-11 20:39:21,877 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 165 transitions, 352 flow [2021-03-11 20:39:21,881 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 153 transitions, 324 flow [2021-03-11 20:39:21,883 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 20:39:21,888 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 153 transitions, 324 flow [2021-03-11 20:39:21,890 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 153 transitions, 324 flow [2021-03-11 20:39:21,890 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 151 places, 153 transitions, 324 flow [2021-03-11 20:39:21,912 INFO L129 PetriNetUnfolder]: 8/186 cut-off events. [2021-03-11 20:39:21,912 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-11 20:39:21,912 INFO L84 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 186 events. 8/186 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 360 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 105. Up to 4 conditions per place. [2021-03-11 20:39:21,915 INFO L116 LiptonReduction]: Number of co-enabled transitions 2492 [2021-03-11 20:39:36,405 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-03-11 20:39:47,654 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-03-11 20:40:05,104 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2021-03-11 20:40:10,179 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-03-11 20:40:10,344 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-03-11 20:40:11,484 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2021-03-11 20:40:11,754 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 99 [2021-03-11 20:40:11,858 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-03-11 20:40:12,051 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2021-03-11 20:40:12,416 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 110 [2021-03-11 20:40:12,808 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2021-03-11 20:40:12,960 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-03-11 20:40:13,400 WARN L205 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2021-03-11 20:40:13,586 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-03-11 20:40:13,998 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-03-11 20:40:14,247 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-03-11 20:40:15,003 WARN L205 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 160 [2021-03-11 20:40:15,318 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2021-03-11 20:40:16,073 WARN L205 SmtUtils]: Spent 753.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 166 [2021-03-11 20:40:16,474 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-03-11 20:40:18,034 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 167 DAG size of output: 165 [2021-03-11 20:40:18,764 WARN L205 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-03-11 20:40:20,925 WARN L205 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 173 DAG size of output: 171 [2021-03-11 20:40:21,835 WARN L205 SmtUtils]: Spent 907.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2021-03-11 20:40:21,839 INFO L131 LiptonReduction]: Checked pairs total: 5719 [2021-03-11 20:40:21,839 INFO L133 LiptonReduction]: Total number of compositions: 167 [2021-03-11 20:40:21,841 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 59959 [2021-03-11 20:40:21,845 INFO L129 PetriNetUnfolder]: 0/1 cut-off events. [2021-03-11 20:40:21,845 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:40:21,845 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:21,845 INFO L255 CegarLoopForPetriNet]: trace histogram [1] [2021-03-11 20:40:21,845 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 20:40:21,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:21,848 INFO L82 PathProgramCache]: Analyzing trace with hash 579, now seen corresponding path program 1 times [2021-03-11 20:40:21,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:21,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101337085] [2021-03-11 20:40:21,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:21,987 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 20:40:21,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101337085] [2021-03-11 20:40:21,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:21,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2021-03-11 20:40:21,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118146806] [2021-03-11 20:40:21,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-03-11 20:40:21,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:21,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-03-11 20:40:22,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-03-11 20:40:22,002 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 332 [2021-03-11 20:40:22,003 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 35 transitions, 88 flow. Second operand has 2 states, 2 states have (on average 286.5) internal successors, (573), 2 states have internal predecessors, (573), 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 20:40:22,004 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:22,004 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 332 [2021-03-11 20:40:22,004 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:22,011 INFO L129 PetriNetUnfolder]: 2/40 cut-off events. [2021-03-11 20:40:22,011 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-11 20:40:22,011 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 4. Compared 75 event pairs, 0 based on Foata normal form. 3/36 useless extension candidates. Maximal degree in co-relation 48. Up to 3 conditions per place. [2021-03-11 20:40:22,012 INFO L132 encePairwiseOnDemand]: 329/332 looper letters, 0 selfloop transitions, 0 changer transitions 0/32 dead transitions. [2021-03-11 20:40:22,012 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 32 transitions, 82 flow [2021-03-11 20:40:22,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-11 20:40:22,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-03-11 20:40:22,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 575 transitions. [2021-03-11 20:40:22,020 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8659638554216867 [2021-03-11 20:40:22,021 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 575 transitions. [2021-03-11 20:40:22,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 575 transitions. [2021-03-11 20:40:22,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:22,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 575 transitions. [2021-03-11 20:40:22,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 287.5) internal successors, (575), 2 states have internal predecessors, (575), 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 20:40:22,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 332.0) internal successors, (996), 3 states have internal predecessors, (996), 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 20:40:22,032 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 332.0) internal successors, (996), 3 states have internal predecessors, (996), 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 20:40:22,033 INFO L185 Difference]: Start difference. First operand has 37 places, 35 transitions, 88 flow. Second operand 2 states and 575 transitions. [2021-03-11 20:40:22,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 32 transitions, 82 flow [2021-03-11 20:40:22,035 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 20:40:22,036 INFO L241 Difference]: Finished difference. Result has 32 places, 32 transitions, 70 flow [2021-03-11 20:40:22,037 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, 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 20:40:22,037 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, -5 predicate places. [2021-03-11 20:40:22,037 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 32 transitions, 70 flow [2021-03-11 20:40:22,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 286.5) internal successors, (573), 2 states have internal predecessors, (573), 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 20:40:22,038 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:22,038 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-03-11 20:40:22,038 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 20:40:22,038 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 20:40:22,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:22,038 INFO L82 PathProgramCache]: Analyzing trace with hash 17744556, now seen corresponding path program 1 times [2021-03-11 20:40:22,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:22,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095652740] [2021-03-11 20:40:22,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:22,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:22,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:22,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:40:22,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:22,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:22,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:22,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:22,191 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 20:40:22,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095652740] [2021-03-11 20:40:22,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:22,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 20:40:22,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631190900] [2021-03-11 20:40:22,193 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 20:40:22,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:22,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 20:40:22,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 20:40:22,198 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 332 [2021-03-11 20:40:22,199 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 32 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 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 20:40:22,199 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:22,199 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 332 [2021-03-11 20:40:22,199 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:22,324 INFO L129 PetriNetUnfolder]: 241/494 cut-off events. [2021-03-11 20:40:22,324 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 20:40:22,327 INFO L84 FinitePrefix]: Finished finitePrefix Result has 940 conditions, 494 events. 241/494 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2523 event pairs, 97 based on Foata normal form. 0/454 useless extension candidates. Maximal degree in co-relation 937. Up to 325 conditions per place. [2021-03-11 20:40:22,330 INFO L132 encePairwiseOnDemand]: 324/332 looper letters, 23 selfloop transitions, 7 changer transitions 0/41 dead transitions. [2021-03-11 20:40:22,330 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 41 transitions, 148 flow [2021-03-11 20:40:22,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 20:40:22,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 20:40:22,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 610 transitions. [2021-03-11 20:40:22,332 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6124497991967871 [2021-03-11 20:40:22,334 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 610 transitions. [2021-03-11 20:40:22,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 610 transitions. [2021-03-11 20:40:22,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:22,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 610 transitions. [2021-03-11 20:40:22,336 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 20:40:22,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 332.0) internal successors, (1328), 4 states have internal predecessors, (1328), 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 20:40:22,339 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 332.0) internal successors, (1328), 4 states have internal predecessors, (1328), 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 20:40:22,339 INFO L185 Difference]: Start difference. First operand has 32 places, 32 transitions, 70 flow. Second operand 3 states and 610 transitions. [2021-03-11 20:40:22,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 41 transitions, 148 flow [2021-03-11 20:40:22,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 41 transitions, 148 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-11 20:40:22,341 INFO L241 Difference]: Finished difference. Result has 36 places, 37 transitions, 120 flow [2021-03-11 20:40:22,341 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, 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=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=36, PETRI_TRANSITIONS=37} [2021-03-11 20:40:22,341 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, -1 predicate places. [2021-03-11 20:40:22,341 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 37 transitions, 120 flow [2021-03-11 20:40:22,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 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 20:40:22,342 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:22,342 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-03-11 20:40:22,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 20:40:22,342 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 20:40:22,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:22,342 INFO L82 PathProgramCache]: Analyzing trace with hash 550081289, now seen corresponding path program 1 times [2021-03-11 20:40:22,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:22,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883591934] [2021-03-11 20:40:22,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:22,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:22,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:40:22,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:22,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:22,421 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 20:40:22,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883591934] [2021-03-11 20:40:22,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:22,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 20:40:22,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2506496] [2021-03-11 20:40:22,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 20:40:22,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:22,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 20:40:22,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 20:40:22,423 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 332 [2021-03-11 20:40:22,424 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 37 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 194.66666666666666) internal successors, (584), 3 states have internal predecessors, (584), 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 20:40:22,424 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:22,424 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 332 [2021-03-11 20:40:22,424 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:22,504 INFO L129 PetriNetUnfolder]: 290/577 cut-off events. [2021-03-11 20:40:22,504 INFO L130 PetriNetUnfolder]: For 253/253 co-relation queries the response was YES. [2021-03-11 20:40:22,505 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1552 conditions, 577 events. 290/577 cut-off events. For 253/253 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3013 event pairs, 125 based on Foata normal form. 17/586 useless extension candidates. Maximal degree in co-relation 1547. Up to 421 conditions per place. [2021-03-11 20:40:22,507 INFO L132 encePairwiseOnDemand]: 325/332 looper letters, 27 selfloop transitions, 9 changer transitions 2/49 dead transitions. [2021-03-11 20:40:22,507 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 49 transitions, 250 flow [2021-03-11 20:40:22,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 20:40:22,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 20:40:22,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 609 transitions. [2021-03-11 20:40:22,509 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.6114457831325302 [2021-03-11 20:40:22,509 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 609 transitions. [2021-03-11 20:40:22,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 609 transitions. [2021-03-11 20:40:22,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:22,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 609 transitions. [2021-03-11 20:40:22,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 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 20:40:22,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 332.0) internal successors, (1328), 4 states have internal predecessors, (1328), 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 20:40:22,512 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 332.0) internal successors, (1328), 4 states have internal predecessors, (1328), 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 20:40:22,512 INFO L185 Difference]: Start difference. First operand has 36 places, 37 transitions, 120 flow. Second operand 3 states and 609 transitions. [2021-03-11 20:40:22,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 49 transitions, 250 flow [2021-03-11 20:40:22,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 49 transitions, 226 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-11 20:40:22,515 INFO L241 Difference]: Finished difference. Result has 37 places, 43 transitions, 177 flow [2021-03-11 20:40:22,515 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=177, PETRI_PLACES=37, PETRI_TRANSITIONS=43} [2021-03-11 20:40:22,515 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 0 predicate places. [2021-03-11 20:40:22,515 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 43 transitions, 177 flow [2021-03-11 20:40:22,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 194.66666666666666) internal successors, (584), 3 states have internal predecessors, (584), 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 20:40:22,515 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:22,515 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:40:22,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 20:40:22,516 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 20:40:22,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:22,516 INFO L82 PathProgramCache]: Analyzing trace with hash -573170367, now seen corresponding path program 1 times [2021-03-11 20:40:22,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:22,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632686241] [2021-03-11 20:40:22,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:22,541 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:22,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:40:22,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:22,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 20:40:22,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:22,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:40:22,545 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 20:40:22,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632686241] [2021-03-11 20:40:22,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:22,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 20:40:22,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064225347] [2021-03-11 20:40:22,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 20:40:22,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:22,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 20:40:22,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 20:40:22,547 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 332 [2021-03-11 20:40:22,547 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 43 transitions, 177 flow. Second operand has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 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 20:40:22,547 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:22,548 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 332 [2021-03-11 20:40:22,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:22,566 INFO L129 PetriNetUnfolder]: 5/45 cut-off events. [2021-03-11 20:40:22,566 INFO L130 PetriNetUnfolder]: For 14/30 co-relation queries the response was YES. [2021-03-11 20:40:22,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 45 events. 5/45 cut-off events. For 14/30 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 110 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 20:40:22,566 INFO L132 encePairwiseOnDemand]: 330/332 looper letters, 2 selfloop transitions, 1 changer transitions 0/25 dead transitions. [2021-03-11 20:40:22,566 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 25 transitions, 78 flow [2021-03-11 20:40:22,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 20:40:22,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 20:40:22,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 787 transitions. [2021-03-11 20:40:22,568 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7901606425702812 [2021-03-11 20:40:22,568 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 787 transitions. [2021-03-11 20:40:22,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 787 transitions. [2021-03-11 20:40:22,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:22,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 787 transitions. [2021-03-11 20:40:22,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 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 20:40:22,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 332.0) internal successors, (1328), 4 states have internal predecessors, (1328), 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 20:40:22,571 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 332.0) internal successors, (1328), 4 states have internal predecessors, (1328), 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 20:40:22,572 INFO L185 Difference]: Start difference. First operand has 37 places, 43 transitions, 177 flow. Second operand 3 states and 787 transitions. [2021-03-11 20:40:22,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 25 transitions, 78 flow [2021-03-11 20:40:22,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 25 transitions, 70 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-03-11 20:40:22,573 INFO L241 Difference]: Finished difference. Result has 31 places, 25 transitions, 66 flow [2021-03-11 20:40:22,573 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=29, 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=31, PETRI_TRANSITIONS=25} [2021-03-11 20:40:22,573 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, -6 predicate places. [2021-03-11 20:40:22,573 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 25 transitions, 66 flow [2021-03-11 20:40:22,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 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 20:40:22,573 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:22,573 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 20:40:22,574 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 20:40:22,574 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 20:40:22,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:22,574 INFO L82 PathProgramCache]: Analyzing trace with hash 875264433, now seen corresponding path program 1 times [2021-03-11 20:40:22,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:22,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635352835] [2021-03-11 20:40:22,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:22,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:22,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:22,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:22,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:22,713 INFO L142 QuantifierPusher]: treesize reduction 4, result has 75.0 percent of original size [2021-03-11 20:40:22,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 20:40:22,722 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-03-11 20:40:22,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 20:40:22,734 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.5 percent of original size [2021-03-11 20:40:22,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 20:40:22,744 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-03-11 20:40:22,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 20:40:22,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:22,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 20:40:22,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:22,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:22,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:22,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:22,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:22,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:22,771 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 20:40:22,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635352835] [2021-03-11 20:40:22,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:22,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 20:40:22,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465892302] [2021-03-11 20:40:22,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 20:40:22,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:22,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 20:40:22,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-11 20:40:22,774 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 332 [2021-03-11 20:40:22,775 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 25 transitions, 66 flow. Second operand has 9 states, 9 states have (on average 159.88888888888889) internal successors, (1439), 9 states have internal predecessors, (1439), 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 20:40:22,775 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:22,775 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 332 [2021-03-11 20:40:22,775 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:23,031 INFO L129 PetriNetUnfolder]: 111/277 cut-off events. [2021-03-11 20:40:23,032 INFO L130 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2021-03-11 20:40:23,032 INFO L84 FinitePrefix]: Finished finitePrefix Result has 608 conditions, 277 events. 111/277 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1299 event pairs, 3 based on Foata normal form. 0/276 useless extension candidates. Maximal degree in co-relation 602. Up to 85 conditions per place. [2021-03-11 20:40:23,033 INFO L132 encePairwiseOnDemand]: 322/332 looper letters, 36 selfloop transitions, 12 changer transitions 0/55 dead transitions. [2021-03-11 20:40:23,033 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 55 transitions, 240 flow [2021-03-11 20:40:23,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 20:40:23,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-11 20:40:23,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1313 transitions. [2021-03-11 20:40:23,036 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4943524096385542 [2021-03-11 20:40:23,036 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1313 transitions. [2021-03-11 20:40:23,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1313 transitions. [2021-03-11 20:40:23,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:23,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1313 transitions. [2021-03-11 20:40:23,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 164.125) internal successors, (1313), 8 states have internal predecessors, (1313), 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 20:40:23,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 332.0) internal successors, (2988), 9 states have internal predecessors, (2988), 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 20:40:23,044 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 332.0) internal successors, (2988), 9 states have internal predecessors, (2988), 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 20:40:23,044 INFO L185 Difference]: Start difference. First operand has 31 places, 25 transitions, 66 flow. Second operand 8 states and 1313 transitions. [2021-03-11 20:40:23,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 55 transitions, 240 flow [2021-03-11 20:40:23,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 55 transitions, 239 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 20:40:23,047 INFO L241 Difference]: Finished difference. Result has 39 places, 31 transitions, 124 flow [2021-03-11 20:40:23,047 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=124, PETRI_PLACES=39, PETRI_TRANSITIONS=31} [2021-03-11 20:40:23,047 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 2 predicate places. [2021-03-11 20:40:23,047 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 31 transitions, 124 flow [2021-03-11 20:40:23,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 159.88888888888889) internal successors, (1439), 9 states have internal predecessors, (1439), 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 20:40:23,049 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:23,049 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 20:40:23,049 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 20:40:23,049 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 20:40:23,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:23,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1413811713, now seen corresponding path program 2 times [2021-03-11 20:40:23,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:23,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069862413] [2021-03-11 20:40:23,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:23,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:23,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:23,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:23,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:23,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:23,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:40:23,186 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-03-11 20:40:23,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 20:40:23,196 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-03-11 20:40:23,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:23,213 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-11 20:40:23,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:40:23,222 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-03-11 20:40:23,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:23,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:23,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:23,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:23,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:23,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:23,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:23,240 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 20:40:23,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069862413] [2021-03-11 20:40:23,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:23,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 20:40:23,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901021138] [2021-03-11 20:40:23,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 20:40:23,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:23,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 20:40:23,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-11 20:40:23,244 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 332 [2021-03-11 20:40:23,245 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 31 transitions, 124 flow. Second operand has 9 states, 9 states have (on average 159.88888888888889) internal successors, (1439), 9 states have internal predecessors, (1439), 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 20:40:23,245 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:23,245 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 332 [2021-03-11 20:40:23,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:23,526 INFO L129 PetriNetUnfolder]: 149/392 cut-off events. [2021-03-11 20:40:23,526 INFO L130 PetriNetUnfolder]: For 252/262 co-relation queries the response was YES. [2021-03-11 20:40:23,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1053 conditions, 392 events. 149/392 cut-off events. For 252/262 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2071 event pairs, 34 based on Foata normal form. 3/391 useless extension candidates. Maximal degree in co-relation 1045. Up to 169 conditions per place. [2021-03-11 20:40:23,528 INFO L132 encePairwiseOnDemand]: 324/332 looper letters, 43 selfloop transitions, 14 changer transitions 0/64 dead transitions. [2021-03-11 20:40:23,528 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 64 transitions, 374 flow [2021-03-11 20:40:23,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 20:40:23,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-11 20:40:23,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1313 transitions. [2021-03-11 20:40:23,531 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4943524096385542 [2021-03-11 20:40:23,531 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1313 transitions. [2021-03-11 20:40:23,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1313 transitions. [2021-03-11 20:40:23,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:23,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1313 transitions. [2021-03-11 20:40:23,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 164.125) internal successors, (1313), 8 states have internal predecessors, (1313), 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 20:40:23,536 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 332.0) internal successors, (2988), 9 states have internal predecessors, (2988), 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 20:40:23,537 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 332.0) internal successors, (2988), 9 states have internal predecessors, (2988), 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 20:40:23,537 INFO L185 Difference]: Start difference. First operand has 39 places, 31 transitions, 124 flow. Second operand 8 states and 1313 transitions. [2021-03-11 20:40:23,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 64 transitions, 374 flow [2021-03-11 20:40:23,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 64 transitions, 366 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-11 20:40:23,540 INFO L241 Difference]: Finished difference. Result has 46 places, 38 transitions, 206 flow [2021-03-11 20:40:23,540 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=206, PETRI_PLACES=46, PETRI_TRANSITIONS=38} [2021-03-11 20:40:23,540 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 9 predicate places. [2021-03-11 20:40:23,540 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 38 transitions, 206 flow [2021-03-11 20:40:23,541 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 159.88888888888889) internal successors, (1439), 9 states have internal predecessors, (1439), 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 20:40:23,541 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:23,541 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 20:40:23,541 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 20:40:23,541 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 20:40:23,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:23,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1232894972, now seen corresponding path program 1 times [2021-03-11 20:40:23,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:23,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906136457] [2021-03-11 20:40:23,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:23,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:23,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:40:23,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:23,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 20:40:23,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:23,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:23,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:23,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:40:23,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:23,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:40:23,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:23,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:23,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:23,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:40:23,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:23,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-11 20:40:23,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:23,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:40:23,639 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 20:40:23,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906136457] [2021-03-11 20:40:23,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:23,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 20:40:23,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981986513] [2021-03-11 20:40:23,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 20:40:23,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:23,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 20:40:23,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 20:40:23,641 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 332 [2021-03-11 20:40:23,642 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 206 flow. Second operand has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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 20:40:23,642 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:23,642 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 332 [2021-03-11 20:40:23,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:23,863 INFO L129 PetriNetUnfolder]: 170/413 cut-off events. [2021-03-11 20:40:23,863 INFO L130 PetriNetUnfolder]: For 589/589 co-relation queries the response was YES. [2021-03-11 20:40:23,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1217 conditions, 413 events. 170/413 cut-off events. For 589/589 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2064 event pairs, 75 based on Foata normal form. 14/418 useless extension candidates. Maximal degree in co-relation 1206. Up to 221 conditions per place. [2021-03-11 20:40:23,865 INFO L132 encePairwiseOnDemand]: 325/332 looper letters, 49 selfloop transitions, 14 changer transitions 0/68 dead transitions. [2021-03-11 20:40:23,865 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 68 transitions, 489 flow [2021-03-11 20:40:23,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 20:40:23,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-11 20:40:23,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1379 transitions. [2021-03-11 20:40:23,868 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5192018072289156 [2021-03-11 20:40:23,868 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1379 transitions. [2021-03-11 20:40:23,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1379 transitions. [2021-03-11 20:40:23,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:23,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1379 transitions. [2021-03-11 20:40:23,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 172.375) internal successors, (1379), 8 states have internal predecessors, (1379), 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 20:40:23,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 332.0) internal successors, (2988), 9 states have internal predecessors, (2988), 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 20:40:23,873 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 332.0) internal successors, (2988), 9 states have internal predecessors, (2988), 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 20:40:23,873 INFO L185 Difference]: Start difference. First operand has 46 places, 38 transitions, 206 flow. Second operand 8 states and 1379 transitions. [2021-03-11 20:40:23,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 68 transitions, 489 flow [2021-03-11 20:40:23,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 68 transitions, 473 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-11 20:40:23,876 INFO L241 Difference]: Finished difference. Result has 55 places, 48 transitions, 319 flow [2021-03-11 20:40:23,876 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=319, PETRI_PLACES=55, PETRI_TRANSITIONS=48} [2021-03-11 20:40:23,876 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 18 predicate places. [2021-03-11 20:40:23,877 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 48 transitions, 319 flow [2021-03-11 20:40:23,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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 20:40:23,877 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:23,877 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 20:40:23,877 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 20:40:23,877 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 20:40:23,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:23,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1368504926, now seen corresponding path program 1 times [2021-03-11 20:40:23,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:23,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635746756] [2021-03-11 20:40:23,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:23,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:24,026 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.9 percent of original size [2021-03-11 20:40:24,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:40:24,035 INFO L142 QuantifierPusher]: treesize reduction 9, result has 80.4 percent of original size [2021-03-11 20:40:24,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 20:40:24,049 INFO L142 QuantifierPusher]: treesize reduction 9, result has 76.3 percent of original size [2021-03-11 20:40:24,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:24,064 INFO L142 QuantifierPusher]: treesize reduction 9, result has 76.3 percent of original size [2021-03-11 20:40:24,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:24,079 INFO L142 QuantifierPusher]: treesize reduction 10, result has 78.3 percent of original size [2021-03-11 20:40:24,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 20:40:24,096 INFO L142 QuantifierPusher]: treesize reduction 10, result has 75.6 percent of original size [2021-03-11 20:40:24,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:40:24,104 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 20:40:24,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 20:40:24,120 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.0 percent of original size [2021-03-11 20:40:24,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 20:40:24,156 INFO L142 QuantifierPusher]: treesize reduction 8, result has 80.0 percent of original size [2021-03-11 20:40:24,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:40:24,173 INFO L142 QuantifierPusher]: treesize reduction 8, result has 79.5 percent of original size [2021-03-11 20:40:24,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:40:24,195 INFO L142 QuantifierPusher]: treesize reduction 4, result has 90.7 percent of original size [2021-03-11 20:40:24,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:24,215 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.9 percent of original size [2021-03-11 20:40:24,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:24,232 INFO L142 QuantifierPusher]: treesize reduction 34, result has 39.3 percent of original size [2021-03-11 20:40:24,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 20:40:24,259 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-03-11 20:40:24,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:24,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:24,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:24,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:24,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:24,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:24,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:24,338 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 20:40:24,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635746756] [2021-03-11 20:40:24,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:24,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:24,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377037590] [2021-03-11 20:40:24,339 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:24,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:24,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:24,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:24,342 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:24,343 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 48 transitions, 319 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:24,343 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:24,343 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:24,343 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:25,482 INFO L129 PetriNetUnfolder]: 281/690 cut-off events. [2021-03-11 20:40:25,482 INFO L130 PetriNetUnfolder]: For 1138/1140 co-relation queries the response was YES. [2021-03-11 20:40:25,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2226 conditions, 690 events. 281/690 cut-off events. For 1138/1140 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4060 event pairs, 78 based on Foata normal form. 3/686 useless extension candidates. Maximal degree in co-relation 2210. Up to 356 conditions per place. [2021-03-11 20:40:25,486 INFO L132 encePairwiseOnDemand]: 316/332 looper letters, 77 selfloop transitions, 40 changer transitions 18/140 dead transitions. [2021-03-11 20:40:25,486 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 140 transitions, 1135 flow [2021-03-11 20:40:25,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-11 20:40:25,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-11 20:40:25,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2688 transitions. [2021-03-11 20:40:25,494 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4497991967871486 [2021-03-11 20:40:25,494 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2688 transitions. [2021-03-11 20:40:25,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2688 transitions. [2021-03-11 20:40:25,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:25,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2688 transitions. [2021-03-11 20:40:25,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 149.33333333333334) internal successors, (2688), 18 states have internal predecessors, (2688), 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 20:40:25,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 332.0) internal successors, (6308), 19 states have internal predecessors, (6308), 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 20:40:25,523 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 332.0) internal successors, (6308), 19 states have internal predecessors, (6308), 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 20:40:25,523 INFO L185 Difference]: Start difference. First operand has 55 places, 48 transitions, 319 flow. Second operand 18 states and 2688 transitions. [2021-03-11 20:40:25,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 140 transitions, 1135 flow [2021-03-11 20:40:25,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 140 transitions, 1113 flow, removed 11 selfloop flow, removed 0 redundant places. [2021-03-11 20:40:25,527 INFO L241 Difference]: Finished difference. Result has 82 places, 80 transitions, 732 flow [2021-03-11 20:40:25,527 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=732, PETRI_PLACES=82, PETRI_TRANSITIONS=80} [2021-03-11 20:40:25,527 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 45 predicate places. [2021-03-11 20:40:25,528 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 80 transitions, 732 flow [2021-03-11 20:40:25,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:25,528 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:25,528 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:40:25,528 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 20:40:25,528 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 20:40:25,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:25,529 INFO L82 PathProgramCache]: Analyzing trace with hash -278392359, now seen corresponding path program 3 times [2021-03-11 20:40:25,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:25,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798982733] [2021-03-11 20:40:25,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:25,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:25,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:25,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 20:40:25,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:25,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 20:40:25,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:25,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 20:40:25,607 INFO L142 QuantifierPusher]: treesize reduction 13, result has 74.0 percent of original size [2021-03-11 20:40:25,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 20:40:25,637 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-11 20:40:25,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 20:40:25,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:25,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:40:25,639 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 20:40:25,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798982733] [2021-03-11 20:40:25,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:25,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 20:40:25,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183533185] [2021-03-11 20:40:25,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 20:40:25,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:25,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 20:40:25,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-11 20:40:25,641 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 332 [2021-03-11 20:40:25,642 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 80 transitions, 732 flow. Second operand has 6 states, 6 states have (on average 246.66666666666666) internal successors, (1480), 6 states have internal predecessors, (1480), 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 20:40:25,642 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:25,642 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 332 [2021-03-11 20:40:25,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:25,748 INFO L129 PetriNetUnfolder]: 113/452 cut-off events. [2021-03-11 20:40:25,748 INFO L130 PetriNetUnfolder]: For 1369/1391 co-relation queries the response was YES. [2021-03-11 20:40:25,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1682 conditions, 452 events. 113/452 cut-off events. For 1369/1391 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3136 event pairs, 14 based on Foata normal form. 14/458 useless extension candidates. Maximal degree in co-relation 1655. Up to 126 conditions per place. [2021-03-11 20:40:25,750 INFO L132 encePairwiseOnDemand]: 325/332 looper letters, 33 selfloop transitions, 12 changer transitions 0/97 dead transitions. [2021-03-11 20:40:25,750 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 97 transitions, 956 flow [2021-03-11 20:40:25,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-11 20:40:25,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-11 20:40:25,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1488 transitions. [2021-03-11 20:40:25,753 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7469879518072289 [2021-03-11 20:40:25,753 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1488 transitions. [2021-03-11 20:40:25,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1488 transitions. [2021-03-11 20:40:25,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:25,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1488 transitions. [2021-03-11 20:40:25,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 248.0) internal successors, (1488), 6 states have internal predecessors, (1488), 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 20:40:25,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 332.0) internal successors, (2324), 7 states have internal predecessors, (2324), 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 20:40:25,759 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 332.0) internal successors, (2324), 7 states have internal predecessors, (2324), 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 20:40:25,759 INFO L185 Difference]: Start difference. First operand has 82 places, 80 transitions, 732 flow. Second operand 6 states and 1488 transitions. [2021-03-11 20:40:25,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 97 transitions, 956 flow [2021-03-11 20:40:25,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 97 transitions, 909 flow, removed 18 selfloop flow, removed 6 redundant places. [2021-03-11 20:40:25,765 INFO L241 Difference]: Finished difference. Result has 76 places, 85 transitions, 760 flow [2021-03-11 20:40:25,765 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=691, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=760, PETRI_PLACES=76, PETRI_TRANSITIONS=85} [2021-03-11 20:40:25,765 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 39 predicate places. [2021-03-11 20:40:25,765 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 85 transitions, 760 flow [2021-03-11 20:40:25,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 246.66666666666666) internal successors, (1480), 6 states have internal predecessors, (1480), 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 20:40:25,766 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:25,766 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 20:40:25,766 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 20:40:25,766 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 20:40:25,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:25,766 INFO L82 PathProgramCache]: Analyzing trace with hash 351176222, now seen corresponding path program 2 times [2021-03-11 20:40:25,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:25,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309961979] [2021-03-11 20:40:25,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:25,855 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.9 percent of original size [2021-03-11 20:40:25,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:40:25,864 INFO L142 QuantifierPusher]: treesize reduction 9, result has 80.4 percent of original size [2021-03-11 20:40:25,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 20:40:25,878 INFO L142 QuantifierPusher]: treesize reduction 9, result has 76.3 percent of original size [2021-03-11 20:40:25,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:25,890 INFO L142 QuantifierPusher]: treesize reduction 9, result has 76.3 percent of original size [2021-03-11 20:40:25,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:25,904 INFO L142 QuantifierPusher]: treesize reduction 10, result has 78.3 percent of original size [2021-03-11 20:40:25,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 20:40:25,921 INFO L142 QuantifierPusher]: treesize reduction 10, result has 77.8 percent of original size [2021-03-11 20:40:25,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 20:40:25,938 INFO L142 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size [2021-03-11 20:40:25,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 20:40:25,946 INFO L142 QuantifierPusher]: treesize reduction 10, result has 70.6 percent of original size [2021-03-11 20:40:25,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 20:40:25,961 INFO L142 QuantifierPusher]: treesize reduction 10, result has 79.6 percent of original size [2021-03-11 20:40:25,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:25,983 INFO L142 QuantifierPusher]: treesize reduction 8, result has 79.5 percent of original size [2021-03-11 20:40:25,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:40:26,000 INFO L142 QuantifierPusher]: treesize reduction 4, result has 90.7 percent of original size [2021-03-11 20:40:26,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:26,020 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.9 percent of original size [2021-03-11 20:40:26,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:26,035 INFO L142 QuantifierPusher]: treesize reduction 34, result has 39.3 percent of original size [2021-03-11 20:40:26,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 20:40:26,070 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-03-11 20:40:26,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:26,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:26,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:26,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:26,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:26,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:26,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:26,119 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 20:40:26,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309961979] [2021-03-11 20:40:26,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:26,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:26,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105545585] [2021-03-11 20:40:26,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:26,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:26,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:26,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:26,121 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:26,123 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 85 transitions, 760 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:26,123 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:26,123 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:26,123 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:27,052 INFO L129 PetriNetUnfolder]: 317/815 cut-off events. [2021-03-11 20:40:27,053 INFO L130 PetriNetUnfolder]: For 2879/2891 co-relation queries the response was YES. [2021-03-11 20:40:27,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3634 conditions, 815 events. 317/815 cut-off events. For 2879/2891 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 5190 event pairs, 125 based on Foata normal form. 6/810 useless extension candidates. Maximal degree in co-relation 3608. Up to 657 conditions per place. [2021-03-11 20:40:27,058 INFO L132 encePairwiseOnDemand]: 318/332 looper letters, 87 selfloop transitions, 34 changer transitions 8/134 dead transitions. [2021-03-11 20:40:27,058 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 134 transitions, 1385 flow [2021-03-11 20:40:27,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 20:40:27,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-11 20:40:27,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2087 transitions. [2021-03-11 20:40:27,064 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4490103270223752 [2021-03-11 20:40:27,064 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2087 transitions. [2021-03-11 20:40:27,064 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2087 transitions. [2021-03-11 20:40:27,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:27,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2087 transitions. [2021-03-11 20:40:27,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 149.07142857142858) internal successors, (2087), 14 states have internal predecessors, (2087), 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 20:40:27,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:40:27,072 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:40:27,072 INFO L185 Difference]: Start difference. First operand has 76 places, 85 transitions, 760 flow. Second operand 14 states and 2087 transitions. [2021-03-11 20:40:27,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 134 transitions, 1385 flow [2021-03-11 20:40:27,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 134 transitions, 1365 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-11 20:40:27,085 INFO L241 Difference]: Finished difference. Result has 92 places, 102 transitions, 1025 flow [2021-03-11 20:40:27,085 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1025, PETRI_PLACES=92, PETRI_TRANSITIONS=102} [2021-03-11 20:40:27,085 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 55 predicate places. [2021-03-11 20:40:27,085 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 102 transitions, 1025 flow [2021-03-11 20:40:27,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:27,086 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:27,086 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 20:40:27,086 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 20:40:27,086 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 20:40:27,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:27,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1220872514, now seen corresponding path program 3 times [2021-03-11 20:40:27,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:27,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133536201] [2021-03-11 20:40:27,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:27,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:27,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 20:40:27,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:27,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 20:40:27,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:27,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:27,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:27,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:27,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:27,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:40:27,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:27,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:40:27,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:27,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-11 20:40:27,173 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 20:40:27,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133536201] [2021-03-11 20:40:27,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:27,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-11 20:40:27,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109641248] [2021-03-11 20:40:27,174 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-11 20:40:27,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:27,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-11 20:40:27,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-11 20:40:27,175 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 332 [2021-03-11 20:40:27,176 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 102 transitions, 1025 flow. Second operand has 7 states, 7 states have (on average 167.71428571428572) internal successors, (1174), 7 states have internal predecessors, (1174), 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 20:40:27,176 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:27,176 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 332 [2021-03-11 20:40:27,176 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:27,418 INFO L129 PetriNetUnfolder]: 331/849 cut-off events. [2021-03-11 20:40:27,418 INFO L130 PetriNetUnfolder]: For 3614/3616 co-relation queries the response was YES. [2021-03-11 20:40:27,421 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3985 conditions, 849 events. 331/849 cut-off events. For 3614/3616 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 5525 event pairs, 101 based on Foata normal form. 11/850 useless extension candidates. Maximal degree in co-relation 3952. Up to 521 conditions per place. [2021-03-11 20:40:27,423 INFO L132 encePairwiseOnDemand]: 322/332 looper letters, 122 selfloop transitions, 23 changer transitions 5/155 dead transitions. [2021-03-11 20:40:27,423 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 155 transitions, 1820 flow [2021-03-11 20:40:27,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 20:40:27,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-11 20:40:27,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1364 transitions. [2021-03-11 20:40:27,426 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.5135542168674698 [2021-03-11 20:40:27,426 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1364 transitions. [2021-03-11 20:40:27,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1364 transitions. [2021-03-11 20:40:27,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:27,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1364 transitions. [2021-03-11 20:40:27,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 170.5) internal successors, (1364), 8 states have internal predecessors, (1364), 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 20:40:27,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 332.0) internal successors, (2988), 9 states have internal predecessors, (2988), 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 20:40:27,430 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 332.0) internal successors, (2988), 9 states have internal predecessors, (2988), 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 20:40:27,430 INFO L185 Difference]: Start difference. First operand has 92 places, 102 transitions, 1025 flow. Second operand 8 states and 1364 transitions. [2021-03-11 20:40:27,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 155 transitions, 1820 flow [2021-03-11 20:40:27,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 155 transitions, 1748 flow, removed 27 selfloop flow, removed 6 redundant places. [2021-03-11 20:40:27,441 INFO L241 Difference]: Finished difference. Result has 94 places, 112 transitions, 1132 flow [2021-03-11 20:40:27,441 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=980, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1132, PETRI_PLACES=94, PETRI_TRANSITIONS=112} [2021-03-11 20:40:27,441 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 57 predicate places. [2021-03-11 20:40:27,441 INFO L480 AbstractCegarLoop]: Abstraction has has 94 places, 112 transitions, 1132 flow [2021-03-11 20:40:27,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 167.71428571428572) internal successors, (1174), 7 states have internal predecessors, (1174), 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 20:40:27,441 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:27,441 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 20:40:27,441 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 20:40:27,441 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 20:40:27,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:27,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1148340448, now seen corresponding path program 4 times [2021-03-11 20:40:27,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:27,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758504772] [2021-03-11 20:40:27,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:27,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:27,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 20:40:27,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:27,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 20:40:27,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:27,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-11 20:40:27,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:27,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 20:40:27,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:27,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 20:40:27,506 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 20:40:27,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758504772] [2021-03-11 20:40:27,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:27,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 20:40:27,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135858554] [2021-03-11 20:40:27,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 20:40:27,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:27,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 20:40:27,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-11 20:40:27,507 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 332 [2021-03-11 20:40:27,508 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 112 transitions, 1132 flow. Second operand has 6 states, 6 states have (on average 246.66666666666666) internal successors, (1480), 6 states have internal predecessors, (1480), 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 20:40:27,508 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:27,508 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 332 [2021-03-11 20:40:27,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:27,596 INFO L129 PetriNetUnfolder]: 20/154 cut-off events. [2021-03-11 20:40:27,596 INFO L130 PetriNetUnfolder]: For 669/672 co-relation queries the response was YES. [2021-03-11 20:40:27,597 INFO L84 FinitePrefix]: Finished finitePrefix Result has 683 conditions, 154 events. 20/154 cut-off events. For 669/672 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 716 event pairs, 0 based on Foata normal form. 13/167 useless extension candidates. Maximal degree in co-relation 648. Up to 31 conditions per place. [2021-03-11 20:40:27,597 INFO L132 encePairwiseOnDemand]: 326/332 looper letters, 27 selfloop transitions, 9 changer transitions 3/74 dead transitions. [2021-03-11 20:40:27,597 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 74 transitions, 728 flow [2021-03-11 20:40:27,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-11 20:40:27,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-11 20:40:27,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1490 transitions. [2021-03-11 20:40:27,600 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.7479919678714859 [2021-03-11 20:40:27,600 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1490 transitions. [2021-03-11 20:40:27,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1490 transitions. [2021-03-11 20:40:27,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:27,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1490 transitions. [2021-03-11 20:40:27,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 248.33333333333334) internal successors, (1490), 6 states have internal predecessors, (1490), 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 20:40:27,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 332.0) internal successors, (2324), 7 states have internal predecessors, (2324), 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 20:40:27,604 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 332.0) internal successors, (2324), 7 states have internal predecessors, (2324), 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 20:40:27,604 INFO L185 Difference]: Start difference. First operand has 94 places, 112 transitions, 1132 flow. Second operand 6 states and 1490 transitions. [2021-03-11 20:40:27,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 74 transitions, 728 flow [2021-03-11 20:40:27,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 74 transitions, 616 flow, removed 44 selfloop flow, removed 9 redundant places. [2021-03-11 20:40:27,608 INFO L241 Difference]: Finished difference. Result has 89 places, 65 transitions, 523 flow [2021-03-11 20:40:27,608 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=523, PETRI_PLACES=89, PETRI_TRANSITIONS=65} [2021-03-11 20:40:27,608 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 52 predicate places. [2021-03-11 20:40:27,608 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 65 transitions, 523 flow [2021-03-11 20:40:27,608 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 246.66666666666666) internal successors, (1480), 6 states have internal predecessors, (1480), 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 20:40:27,608 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:27,608 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 20:40:27,608 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 20:40:27,608 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 20:40:27,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:27,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1094931618, now seen corresponding path program 5 times [2021-03-11 20:40:27,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:27,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081881753] [2021-03-11 20:40:27,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:27,684 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.9 percent of original size [2021-03-11 20:40:27,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:40:27,694 INFO L142 QuantifierPusher]: treesize reduction 9, result has 80.4 percent of original size [2021-03-11 20:40:27,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 20:40:27,705 INFO L142 QuantifierPusher]: treesize reduction 9, result has 76.3 percent of original size [2021-03-11 20:40:27,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:27,718 INFO L142 QuantifierPusher]: treesize reduction 9, result has 76.3 percent of original size [2021-03-11 20:40:27,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:27,730 INFO L142 QuantifierPusher]: treesize reduction 10, result has 78.3 percent of original size [2021-03-11 20:40:27,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 20:40:27,746 INFO L142 QuantifierPusher]: treesize reduction 10, result has 75.6 percent of original size [2021-03-11 20:40:27,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:40:27,754 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 20:40:27,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 20:40:27,769 INFO L142 QuantifierPusher]: treesize reduction 10, result has 70.6 percent of original size [2021-03-11 20:40:27,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 20:40:27,787 INFO L142 QuantifierPusher]: treesize reduction 10, result has 79.6 percent of original size [2021-03-11 20:40:27,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:27,806 INFO L142 QuantifierPusher]: treesize reduction 8, result has 79.5 percent of original size [2021-03-11 20:40:27,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:40:27,831 INFO L142 QuantifierPusher]: treesize reduction 4, result has 90.7 percent of original size [2021-03-11 20:40:27,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:27,851 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.9 percent of original size [2021-03-11 20:40:27,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:27,866 INFO L142 QuantifierPusher]: treesize reduction 34, result has 39.3 percent of original size [2021-03-11 20:40:27,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 20:40:27,891 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-03-11 20:40:27,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:27,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:27,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:27,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:27,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:27,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:27,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:27,939 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 20:40:27,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081881753] [2021-03-11 20:40:27,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:27,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:27,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907373462] [2021-03-11 20:40:27,945 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:27,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:27,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:27,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:27,948 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:27,949 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 65 transitions, 523 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:27,949 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:27,949 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:27,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:28,650 INFO L129 PetriNetUnfolder]: 69/250 cut-off events. [2021-03-11 20:40:28,650 INFO L130 PetriNetUnfolder]: For 798/798 co-relation queries the response was YES. [2021-03-11 20:40:28,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1063 conditions, 250 events. 69/250 cut-off events. For 798/798 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1242 event pairs, 39 based on Foata normal form. 1/247 useless extension candidates. Maximal degree in co-relation 1032. Up to 196 conditions per place. [2021-03-11 20:40:28,651 INFO L132 encePairwiseOnDemand]: 319/332 looper letters, 47 selfloop transitions, 14 changer transitions 12/78 dead transitions. [2021-03-11 20:40:28,651 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 78 transitions, 781 flow [2021-03-11 20:40:28,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 20:40:28,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-11 20:40:28,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2061 transitions. [2021-03-11 20:40:28,662 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44341652323580033 [2021-03-11 20:40:28,662 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2061 transitions. [2021-03-11 20:40:28,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2061 transitions. [2021-03-11 20:40:28,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:28,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2061 transitions. [2021-03-11 20:40:28,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 147.21428571428572) internal successors, (2061), 14 states have internal predecessors, (2061), 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 20:40:28,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:40:28,669 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:40:28,669 INFO L185 Difference]: Start difference. First operand has 89 places, 65 transitions, 523 flow. Second operand 14 states and 2061 transitions. [2021-03-11 20:40:28,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 78 transitions, 781 flow [2021-03-11 20:40:28,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 78 transitions, 761 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-03-11 20:40:28,673 INFO L241 Difference]: Finished difference. Result has 98 places, 63 transitions, 526 flow [2021-03-11 20:40:28,673 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=526, PETRI_PLACES=98, PETRI_TRANSITIONS=63} [2021-03-11 20:40:28,673 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 61 predicate places. [2021-03-11 20:40:28,673 INFO L480 AbstractCegarLoop]: Abstraction has has 98 places, 63 transitions, 526 flow [2021-03-11 20:40:28,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:28,673 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:28,673 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 20:40:28,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-11 20:40:28,674 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 20:40:28,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:28,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1435583682, now seen corresponding path program 6 times [2021-03-11 20:40:28,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:28,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802681103] [2021-03-11 20:40:28,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:28,741 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.9 percent of original size [2021-03-11 20:40:28,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:40:28,750 INFO L142 QuantifierPusher]: treesize reduction 9, result has 80.4 percent of original size [2021-03-11 20:40:28,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 20:40:28,762 INFO L142 QuantifierPusher]: treesize reduction 9, result has 76.3 percent of original size [2021-03-11 20:40:28,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:28,775 INFO L142 QuantifierPusher]: treesize reduction 9, result has 76.3 percent of original size [2021-03-11 20:40:28,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:28,787 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.7 percent of original size [2021-03-11 20:40:28,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 20:40:28,803 INFO L142 QuantifierPusher]: treesize reduction 10, result has 77.8 percent of original size [2021-03-11 20:40:28,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 20:40:28,821 INFO L142 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size [2021-03-11 20:40:28,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 20:40:28,829 INFO L142 QuantifierPusher]: treesize reduction 10, result has 70.6 percent of original size [2021-03-11 20:40:28,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 20:40:28,846 INFO L142 QuantifierPusher]: treesize reduction 10, result has 79.6 percent of original size [2021-03-11 20:40:28,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:28,875 INFO L142 QuantifierPusher]: treesize reduction 8, result has 79.5 percent of original size [2021-03-11 20:40:28,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:40:28,898 INFO L142 QuantifierPusher]: treesize reduction 4, result has 90.7 percent of original size [2021-03-11 20:40:28,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:28,917 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.9 percent of original size [2021-03-11 20:40:28,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:28,932 INFO L142 QuantifierPusher]: treesize reduction 34, result has 39.3 percent of original size [2021-03-11 20:40:28,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 20:40:28,959 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-03-11 20:40:28,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:28,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:28,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:28,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:28,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:28,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:28,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:29,008 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 20:40:29,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802681103] [2021-03-11 20:40:29,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:29,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:29,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787154869] [2021-03-11 20:40:29,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:29,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:29,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:29,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:29,010 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:29,011 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 63 transitions, 526 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:29,012 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:29,012 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:29,012 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:29,740 INFO L129 PetriNetUnfolder]: 67/233 cut-off events. [2021-03-11 20:40:29,740 INFO L130 PetriNetUnfolder]: For 747/747 co-relation queries the response was YES. [2021-03-11 20:40:29,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1021 conditions, 233 events. 67/233 cut-off events. For 747/747 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1101 event pairs, 38 based on Foata normal form. 1/230 useless extension candidates. Maximal degree in co-relation 988. Up to 189 conditions per place. [2021-03-11 20:40:29,744 INFO L132 encePairwiseOnDemand]: 318/332 looper letters, 46 selfloop transitions, 11 changer transitions 13/75 dead transitions. [2021-03-11 20:40:29,744 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 75 transitions, 751 flow [2021-03-11 20:40:29,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 20:40:29,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 20:40:29,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1917 transitions. [2021-03-11 20:40:29,748 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44416126042632065 [2021-03-11 20:40:29,749 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1917 transitions. [2021-03-11 20:40:29,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1917 transitions. [2021-03-11 20:40:29,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:29,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1917 transitions. [2021-03-11 20:40:29,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 147.46153846153845) internal successors, (1917), 13 states have internal predecessors, (1917), 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 20:40:29,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:40:29,755 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:40:29,755 INFO L185 Difference]: Start difference. First operand has 98 places, 63 transitions, 526 flow. Second operand 13 states and 1917 transitions. [2021-03-11 20:40:29,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 75 transitions, 751 flow [2021-03-11 20:40:29,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 75 transitions, 697 flow, removed 8 selfloop flow, removed 12 redundant places. [2021-03-11 20:40:29,758 INFO L241 Difference]: Finished difference. Result has 98 places, 61 transitions, 495 flow [2021-03-11 20:40:29,758 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=495, PETRI_PLACES=98, PETRI_TRANSITIONS=61} [2021-03-11 20:40:29,759 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 61 predicate places. [2021-03-11 20:40:29,759 INFO L480 AbstractCegarLoop]: Abstraction has has 98 places, 61 transitions, 495 flow [2021-03-11 20:40:29,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:29,759 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:29,759 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 20:40:29,759 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-11 20:40:29,759 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 20:40:29,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:29,760 INFO L82 PathProgramCache]: Analyzing trace with hash 929774411, now seen corresponding path program 4 times [2021-03-11 20:40:29,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:29,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258490196] [2021-03-11 20:40:29,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:29,816 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size [2021-03-11 20:40:29,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 20:40:29,824 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size [2021-03-11 20:40:29,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 20:40:29,839 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size [2021-03-11 20:40:29,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 20:40:29,854 INFO L142 QuantifierPusher]: treesize reduction 2, result has 92.0 percent of original size [2021-03-11 20:40:29,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 20:40:29,872 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.9 percent of original size [2021-03-11 20:40:29,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:29,890 INFO L142 QuantifierPusher]: treesize reduction 2, result has 89.5 percent of original size [2021-03-11 20:40:29,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 20:40:29,903 INFO L142 QuantifierPusher]: treesize reduction 18, result has 37.9 percent of original size [2021-03-11 20:40:29,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 20:40:29,917 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 20:40:29,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:29,934 INFO L142 QuantifierPusher]: treesize reduction 18, result has 60.0 percent of original size [2021-03-11 20:40:29,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:40:29,945 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 20:40:29,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:29,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:29,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:29,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:29,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:29,967 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 20:40:29,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258490196] [2021-03-11 20:40:29,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:29,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-03-11 20:40:29,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406596008] [2021-03-11 20:40:29,968 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-11 20:40:29,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:29,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-11 20:40:29,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-03-11 20:40:29,969 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 332 [2021-03-11 20:40:29,970 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 61 transitions, 495 flow. Second operand has 12 states, 12 states have (on average 147.58333333333334) internal successors, (1771), 12 states have internal predecessors, (1771), 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 20:40:29,970 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:29,970 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 332 [2021-03-11 20:40:29,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:30,456 INFO L129 PetriNetUnfolder]: 75/254 cut-off events. [2021-03-11 20:40:30,456 INFO L130 PetriNetUnfolder]: For 711/711 co-relation queries the response was YES. [2021-03-11 20:40:30,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1073 conditions, 254 events. 75/254 cut-off events. For 711/711 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1244 event pairs, 4 based on Foata normal form. 2/256 useless extension candidates. Maximal degree in co-relation 1037. Up to 90 conditions per place. [2021-03-11 20:40:30,458 INFO L132 encePairwiseOnDemand]: 323/332 looper letters, 74 selfloop transitions, 21 changer transitions 0/100 dead transitions. [2021-03-11 20:40:30,458 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 100 transitions, 878 flow [2021-03-11 20:40:30,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-11 20:40:30,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-11 20:40:30,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1816 transitions. [2021-03-11 20:40:30,460 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.45582329317269077 [2021-03-11 20:40:30,460 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1816 transitions. [2021-03-11 20:40:30,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1816 transitions. [2021-03-11 20:40:30,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:30,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1816 transitions. [2021-03-11 20:40:30,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 151.33333333333334) internal successors, (1816), 12 states have internal predecessors, (1816), 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 20:40:30,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 332.0) internal successors, (4316), 13 states have internal predecessors, (4316), 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 20:40:30,465 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 332.0) internal successors, (4316), 13 states have internal predecessors, (4316), 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 20:40:30,465 INFO L185 Difference]: Start difference. First operand has 98 places, 61 transitions, 495 flow. Second operand 12 states and 1816 transitions. [2021-03-11 20:40:30,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 100 transitions, 878 flow [2021-03-11 20:40:30,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 100 transitions, 841 flow, removed 10 selfloop flow, removed 10 redundant places. [2021-03-11 20:40:30,468 INFO L241 Difference]: Finished difference. Result has 94 places, 65 transitions, 545 flow [2021-03-11 20:40:30,468 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=545, PETRI_PLACES=94, PETRI_TRANSITIONS=65} [2021-03-11 20:40:30,469 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 57 predicate places. [2021-03-11 20:40:30,469 INFO L480 AbstractCegarLoop]: Abstraction has has 94 places, 65 transitions, 545 flow [2021-03-11 20:40:30,469 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 147.58333333333334) internal successors, (1771), 12 states have internal predecessors, (1771), 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 20:40:30,469 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:30,469 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 20:40:30,469 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-11 20:40:30,469 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 20:40:30,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:30,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1046218638, now seen corresponding path program 7 times [2021-03-11 20:40:30,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:30,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471247976] [2021-03-11 20:40:30,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:30,528 INFO L142 QuantifierPusher]: treesize reduction 10, result has 76.2 percent of original size [2021-03-11 20:40:30,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:40:30,538 INFO L142 QuantifierPusher]: treesize reduction 7, result has 85.4 percent of original size [2021-03-11 20:40:30,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:30,553 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size [2021-03-11 20:40:30,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:30,568 INFO L142 QuantifierPusher]: treesize reduction 10, result has 79.2 percent of original size [2021-03-11 20:40:30,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:40:30,586 INFO L142 QuantifierPusher]: treesize reduction 10, result has 76.7 percent of original size [2021-03-11 20:40:30,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:30,593 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-03-11 20:40:30,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:40:30,612 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.8 percent of original size [2021-03-11 20:40:30,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:40:30,633 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.8 percent of original size [2021-03-11 20:40:30,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:40:30,657 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.1 percent of original size [2021-03-11 20:40:30,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:40:30,676 INFO L142 QuantifierPusher]: treesize reduction 6, result has 85.7 percent of original size [2021-03-11 20:40:30,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 20:40:30,708 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size [2021-03-11 20:40:30,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 20:40:30,709 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size [2021-03-11 20:40:30,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 20:40:30,711 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-11 20:40:30,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:30,733 INFO L142 QuantifierPusher]: treesize reduction 19, result has 60.4 percent of original size [2021-03-11 20:40:30,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:30,748 INFO L142 QuantifierPusher]: treesize reduction 46, result has 35.2 percent of original size [2021-03-11 20:40:30,748 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-11 20:40:30,776 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-11 20:40:30,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:30,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:30,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:30,812 INFO L142 QuantifierPusher]: treesize reduction 9, result has 69.0 percent of original size [2021-03-11 20:40:30,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:30,829 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 20:40:30,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471247976] [2021-03-11 20:40:30,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:30,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:30,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820312274] [2021-03-11 20:40:30,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:30,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:30,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:30,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:30,831 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:30,832 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 65 transitions, 545 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:30,832 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:30,833 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:30,833 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:31,832 INFO L129 PetriNetUnfolder]: 96/311 cut-off events. [2021-03-11 20:40:31,832 INFO L130 PetriNetUnfolder]: For 1125/1125 co-relation queries the response was YES. [2021-03-11 20:40:31,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1333 conditions, 311 events. 96/311 cut-off events. For 1125/1125 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1628 event pairs, 15 based on Foata normal form. 1/308 useless extension candidates. Maximal degree in co-relation 1301. Up to 152 conditions per place. [2021-03-11 20:40:31,834 INFO L132 encePairwiseOnDemand]: 315/332 looper letters, 68 selfloop transitions, 23 changer transitions 15/111 dead transitions. [2021-03-11 20:40:31,834 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 111 transitions, 1084 flow [2021-03-11 20:40:31,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-11 20:40:31,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-11 20:40:31,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2376 transitions. [2021-03-11 20:40:31,836 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44728915662650603 [2021-03-11 20:40:31,836 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2376 transitions. [2021-03-11 20:40:31,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2376 transitions. [2021-03-11 20:40:31,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:31,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2376 transitions. [2021-03-11 20:40:31,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 148.5) internal successors, (2376), 16 states have internal predecessors, (2376), 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 20:40:31,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 332.0) internal successors, (5644), 17 states have internal predecessors, (5644), 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 20:40:31,843 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 332.0) internal successors, (5644), 17 states have internal predecessors, (5644), 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 20:40:31,843 INFO L185 Difference]: Start difference. First operand has 94 places, 65 transitions, 545 flow. Second operand 16 states and 2376 transitions. [2021-03-11 20:40:31,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 111 transitions, 1084 flow [2021-03-11 20:40:31,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 111 transitions, 1031 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-03-11 20:40:31,847 INFO L241 Difference]: Finished difference. Result has 113 places, 74 transitions, 673 flow [2021-03-11 20:40:31,848 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=673, PETRI_PLACES=113, PETRI_TRANSITIONS=74} [2021-03-11 20:40:31,848 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 76 predicate places. [2021-03-11 20:40:31,848 INFO L480 AbstractCegarLoop]: Abstraction has has 113 places, 74 transitions, 673 flow [2021-03-11 20:40:31,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:31,848 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:31,848 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 20:40:31,848 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-11 20:40:31,849 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 20:40:31,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:31,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1012572624, now seen corresponding path program 8 times [2021-03-11 20:40:31,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:31,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387222443] [2021-03-11 20:40:31,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:31,904 INFO L142 QuantifierPusher]: treesize reduction 10, result has 76.2 percent of original size [2021-03-11 20:40:31,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:40:31,914 INFO L142 QuantifierPusher]: treesize reduction 7, result has 85.4 percent of original size [2021-03-11 20:40:31,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:31,929 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size [2021-03-11 20:40:31,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:31,944 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size [2021-03-11 20:40:31,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:31,961 INFO L142 QuantifierPusher]: treesize reduction 10, result has 79.2 percent of original size [2021-03-11 20:40:31,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:40:31,980 INFO L142 QuantifierPusher]: treesize reduction 10, result has 76.7 percent of original size [2021-03-11 20:40:31,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:31,994 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-03-11 20:40:31,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:40:32,016 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.8 percent of original size [2021-03-11 20:40:32,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:40:32,037 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.1 percent of original size [2021-03-11 20:40:32,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:40:32,056 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.0 percent of original size [2021-03-11 20:40:32,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 20:40:32,073 INFO L142 QuantifierPusher]: treesize reduction 18, result has 68.4 percent of original size [2021-03-11 20:40:32,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:32,094 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 20:40:32,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:32,107 INFO L142 QuantifierPusher]: treesize reduction 45, result has 35.7 percent of original size [2021-03-11 20:40:32,108 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-11 20:40:32,135 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 20:40:32,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:32,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:32,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:32,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:32,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:32,186 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 20:40:32,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387222443] [2021-03-11 20:40:32,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:32,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:32,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027100666] [2021-03-11 20:40:32,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:32,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:32,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:32,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:32,188 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:32,189 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 74 transitions, 673 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:32,189 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:32,189 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:32,189 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:32,963 INFO L129 PetriNetUnfolder]: 107/342 cut-off events. [2021-03-11 20:40:32,963 INFO L130 PetriNetUnfolder]: For 1527/1527 co-relation queries the response was YES. [2021-03-11 20:40:32,964 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1645 conditions, 342 events. 107/342 cut-off events. For 1527/1527 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1858 event pairs, 40 based on Foata normal form. 1/338 useless extension candidates. Maximal degree in co-relation 1605. Up to 236 conditions per place. [2021-03-11 20:40:32,965 INFO L132 encePairwiseOnDemand]: 316/332 looper letters, 78 selfloop transitions, 31 changer transitions 0/114 dead transitions. [2021-03-11 20:40:32,965 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 114 transitions, 1211 flow [2021-03-11 20:40:32,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 20:40:32,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-11 20:40:32,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2075 transitions. [2021-03-11 20:40:32,967 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44642857142857145 [2021-03-11 20:40:32,967 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2075 transitions. [2021-03-11 20:40:32,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2075 transitions. [2021-03-11 20:40:32,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:32,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2075 transitions. [2021-03-11 20:40:32,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 148.21428571428572) internal successors, (2075), 14 states have internal predecessors, (2075), 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 20:40:32,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:40:32,973 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:40:32,973 INFO L185 Difference]: Start difference. First operand has 113 places, 74 transitions, 673 flow. Second operand 14 states and 2075 transitions. [2021-03-11 20:40:32,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 114 transitions, 1211 flow [2021-03-11 20:40:32,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 114 transitions, 1172 flow, removed 13 selfloop flow, removed 7 redundant places. [2021-03-11 20:40:32,979 INFO L241 Difference]: Finished difference. Result has 123 places, 95 transitions, 955 flow [2021-03-11 20:40:32,979 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=955, PETRI_PLACES=123, PETRI_TRANSITIONS=95} [2021-03-11 20:40:32,979 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 86 predicate places. [2021-03-11 20:40:32,979 INFO L480 AbstractCegarLoop]: Abstraction has has 123 places, 95 transitions, 955 flow [2021-03-11 20:40:32,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:32,980 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:32,980 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 20:40:32,980 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-11 20:40:32,980 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 20:40:32,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:32,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1363632164, now seen corresponding path program 9 times [2021-03-11 20:40:32,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:32,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560885999] [2021-03-11 20:40:32,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:33,061 INFO L142 QuantifierPusher]: treesize reduction 20, result has 67.2 percent of original size [2021-03-11 20:40:33,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:33,082 INFO L142 QuantifierPusher]: treesize reduction 17, result has 75.7 percent of original size [2021-03-11 20:40:33,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 20:40:33,118 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-03-11 20:40:33,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:33,123 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-11 20:40:33,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:40:33,158 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-11 20:40:33,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:40:33,191 INFO L142 QuantifierPusher]: treesize reduction 20, result has 69.2 percent of original size [2021-03-11 20:40:33,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:33,198 INFO L142 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-03-11 20:40:33,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:33,230 INFO L142 QuantifierPusher]: treesize reduction 20, result has 73.0 percent of original size [2021-03-11 20:40:33,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-11 20:40:33,272 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.4 percent of original size [2021-03-11 20:40:33,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:40:33,311 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.9 percent of original size [2021-03-11 20:40:33,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 20:40:33,345 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.9 percent of original size [2021-03-11 20:40:33,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 20:40:33,350 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-11 20:40:33,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:40:33,384 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-03-11 20:40:33,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:33,397 INFO L142 QuantifierPusher]: treesize reduction 46, result has 38.7 percent of original size [2021-03-11 20:40:33,398 INFO L147 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size 26 [2021-03-11 20:40:33,426 INFO L142 QuantifierPusher]: treesize reduction 45, result has 35.7 percent of original size [2021-03-11 20:40:33,427 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-11 20:40:33,453 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 20:40:33,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:33,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:33,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:33,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:33,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:33,498 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 20:40:33,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560885999] [2021-03-11 20:40:33,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:33,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:33,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473407073] [2021-03-11 20:40:33,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:33,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:33,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:33,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:33,500 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:33,501 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 95 transitions, 955 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:33,501 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:33,501 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:33,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:34,367 INFO L129 PetriNetUnfolder]: 133/420 cut-off events. [2021-03-11 20:40:34,367 INFO L130 PetriNetUnfolder]: For 2430/2432 co-relation queries the response was YES. [2021-03-11 20:40:34,369 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2166 conditions, 420 events. 133/420 cut-off events. For 2430/2432 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2474 event pairs, 45 based on Foata normal form. 1/416 useless extension candidates. Maximal degree in co-relation 2121. Up to 278 conditions per place. [2021-03-11 20:40:34,370 INFO L132 encePairwiseOnDemand]: 318/332 looper letters, 94 selfloop transitions, 21 changer transitions 16/136 dead transitions. [2021-03-11 20:40:34,370 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 136 transitions, 1570 flow [2021-03-11 20:40:34,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 20:40:34,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 20:40:34,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1938 transitions. [2021-03-11 20:40:34,374 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4490268767377201 [2021-03-11 20:40:34,374 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1938 transitions. [2021-03-11 20:40:34,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1938 transitions. [2021-03-11 20:40:34,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:34,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1938 transitions. [2021-03-11 20:40:34,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 149.07692307692307) internal successors, (1938), 13 states have internal predecessors, (1938), 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 20:40:34,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:40:34,380 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:40:34,380 INFO L185 Difference]: Start difference. First operand has 123 places, 95 transitions, 955 flow. Second operand 13 states and 1938 transitions. [2021-03-11 20:40:34,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 136 transitions, 1570 flow [2021-03-11 20:40:34,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 136 transitions, 1541 flow, removed 11 selfloop flow, removed 2 redundant places. [2021-03-11 20:40:34,388 INFO L241 Difference]: Finished difference. Result has 140 places, 104 transitions, 1091 flow [2021-03-11 20:40:34,388 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=926, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1091, PETRI_PLACES=140, PETRI_TRANSITIONS=104} [2021-03-11 20:40:34,388 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 103 predicate places. [2021-03-11 20:40:34,388 INFO L480 AbstractCegarLoop]: Abstraction has has 140 places, 104 transitions, 1091 flow [2021-03-11 20:40:34,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:34,389 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:34,389 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 20:40:34,389 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-11 20:40:34,389 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 20:40:34,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:34,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1230698718, now seen corresponding path program 10 times [2021-03-11 20:40:34,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:34,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892441560] [2021-03-11 20:40:34,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:34,471 INFO L142 QuantifierPusher]: treesize reduction 20, result has 67.2 percent of original size [2021-03-11 20:40:34,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:34,496 INFO L142 QuantifierPusher]: treesize reduction 17, result has 75.7 percent of original size [2021-03-11 20:40:34,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 20:40:34,530 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-03-11 20:40:34,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:34,537 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-11 20:40:34,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:40:34,571 INFO L142 QuantifierPusher]: treesize reduction 20, result has 69.2 percent of original size [2021-03-11 20:40:34,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:34,578 INFO L142 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-03-11 20:40:34,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:34,613 INFO L142 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-03-11 20:40:34,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:34,645 INFO L142 QuantifierPusher]: treesize reduction 20, result has 73.0 percent of original size [2021-03-11 20:40:34,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-11 20:40:34,685 INFO L142 QuantifierPusher]: treesize reduction 12, result has 77.4 percent of original size [2021-03-11 20:40:34,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:34,718 INFO L142 QuantifierPusher]: treesize reduction 27, result has 55.7 percent of original size [2021-03-11 20:40:34,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 20:40:34,736 INFO L142 QuantifierPusher]: treesize reduction 27, result has 55.0 percent of original size [2021-03-11 20:40:34,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:34,755 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-11 20:40:34,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:40:34,768 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-03-11 20:40:34,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:34,769 INFO L142 QuantifierPusher]: treesize reduction 46, result has 38.7 percent of original size [2021-03-11 20:40:34,770 INFO L147 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size 26 [2021-03-11 20:40:34,798 INFO L142 QuantifierPusher]: treesize reduction 45, result has 35.7 percent of original size [2021-03-11 20:40:34,798 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-11 20:40:34,823 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 20:40:34,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:34,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:34,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:34,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:34,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:34,870 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 20:40:34,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892441560] [2021-03-11 20:40:34,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:34,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:34,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957801072] [2021-03-11 20:40:34,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:34,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:34,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:34,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:34,873 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:34,874 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 104 transitions, 1091 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:34,874 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:34,874 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:34,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:35,678 INFO L129 PetriNetUnfolder]: 126/407 cut-off events. [2021-03-11 20:40:35,679 INFO L130 PetriNetUnfolder]: For 2805/2807 co-relation queries the response was YES. [2021-03-11 20:40:35,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2249 conditions, 407 events. 126/407 cut-off events. For 2805/2807 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2369 event pairs, 48 based on Foata normal form. 1/402 useless extension candidates. Maximal degree in co-relation 2196. Up to 286 conditions per place. [2021-03-11 20:40:35,681 INFO L132 encePairwiseOnDemand]: 317/332 looper letters, 104 selfloop transitions, 29 changer transitions 0/138 dead transitions. [2021-03-11 20:40:35,681 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 138 transitions, 1708 flow [2021-03-11 20:40:35,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 20:40:35,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-11 20:40:35,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2078 transitions. [2021-03-11 20:40:35,689 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4470740103270224 [2021-03-11 20:40:35,689 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2078 transitions. [2021-03-11 20:40:35,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2078 transitions. [2021-03-11 20:40:35,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:35,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2078 transitions. [2021-03-11 20:40:35,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 148.42857142857142) internal successors, (2078), 14 states have internal predecessors, (2078), 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 20:40:35,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:40:35,693 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:40:35,693 INFO L185 Difference]: Start difference. First operand has 140 places, 104 transitions, 1091 flow. Second operand 14 states and 2078 transitions. [2021-03-11 20:40:35,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 138 transitions, 1708 flow [2021-03-11 20:40:35,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 138 transitions, 1652 flow, removed 24 selfloop flow, removed 6 redundant places. [2021-03-11 20:40:35,703 INFO L241 Difference]: Finished difference. Result has 149 places, 117 transitions, 1313 flow [2021-03-11 20:40:35,703 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1047, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1313, PETRI_PLACES=149, PETRI_TRANSITIONS=117} [2021-03-11 20:40:35,703 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 112 predicate places. [2021-03-11 20:40:35,703 INFO L480 AbstractCegarLoop]: Abstraction has has 149 places, 117 transitions, 1313 flow [2021-03-11 20:40:35,703 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:35,703 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:35,703 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 20:40:35,703 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-11 20:40:35,703 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 20:40:35,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:35,704 INFO L82 PathProgramCache]: Analyzing trace with hash -895052204, now seen corresponding path program 11 times [2021-03-11 20:40:35,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:35,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832096411] [2021-03-11 20:40:35,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:35,759 INFO L142 QuantifierPusher]: treesize reduction 20, result has 67.2 percent of original size [2021-03-11 20:40:35,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:35,781 INFO L142 QuantifierPusher]: treesize reduction 17, result has 75.7 percent of original size [2021-03-11 20:40:35,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 20:40:35,816 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-11 20:40:35,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 20:40:35,883 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-11 20:40:35,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:40:35,889 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-11 20:40:35,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:40:35,920 INFO L142 QuantifierPusher]: treesize reduction 20, result has 69.2 percent of original size [2021-03-11 20:40:35,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:35,926 INFO L142 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-03-11 20:40:35,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:35,956 INFO L142 QuantifierPusher]: treesize reduction 20, result has 73.0 percent of original size [2021-03-11 20:40:35,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-11 20:40:36,001 INFO L142 QuantifierPusher]: treesize reduction 12, result has 77.4 percent of original size [2021-03-11 20:40:36,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:36,034 INFO L142 QuantifierPusher]: treesize reduction 27, result has 55.7 percent of original size [2021-03-11 20:40:36,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 20:40:36,051 INFO L142 QuantifierPusher]: treesize reduction 27, result has 55.0 percent of original size [2021-03-11 20:40:36,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:36,068 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-11 20:40:36,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:40:36,080 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-03-11 20:40:36,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:36,082 INFO L142 QuantifierPusher]: treesize reduction 46, result has 38.7 percent of original size [2021-03-11 20:40:36,082 INFO L147 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size 26 [2021-03-11 20:40:36,110 INFO L142 QuantifierPusher]: treesize reduction 45, result has 35.7 percent of original size [2021-03-11 20:40:36,110 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-11 20:40:36,135 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 20:40:36,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:36,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:36,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:36,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:36,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:36,180 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 20:40:36,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832096411] [2021-03-11 20:40:36,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:36,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:36,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228881406] [2021-03-11 20:40:36,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:36,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:36,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:36,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:36,182 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:36,183 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 117 transitions, 1313 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:36,183 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:36,183 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:36,183 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:37,003 INFO L129 PetriNetUnfolder]: 130/428 cut-off events. [2021-03-11 20:40:37,003 INFO L130 PetriNetUnfolder]: For 3223/3225 co-relation queries the response was YES. [2021-03-11 20:40:37,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2417 conditions, 428 events. 130/428 cut-off events. For 3223/3225 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2547 event pairs, 38 based on Foata normal form. 1/426 useless extension candidates. Maximal degree in co-relation 2361. Up to 296 conditions per place. [2021-03-11 20:40:37,006 INFO L132 encePairwiseOnDemand]: 317/332 looper letters, 110 selfloop transitions, 31 changer transitions 2/148 dead transitions. [2021-03-11 20:40:37,006 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 148 transitions, 1922 flow [2021-03-11 20:40:37,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 20:40:37,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-11 20:40:37,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2079 transitions. [2021-03-11 20:40:37,008 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44728915662650603 [2021-03-11 20:40:37,008 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2079 transitions. [2021-03-11 20:40:37,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2079 transitions. [2021-03-11 20:40:37,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:37,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2079 transitions. [2021-03-11 20:40:37,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 148.5) internal successors, (2079), 14 states have internal predecessors, (2079), 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 20:40:37,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:40:37,012 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:40:37,012 INFO L185 Difference]: Start difference. First operand has 149 places, 117 transitions, 1313 flow. Second operand 14 states and 2079 transitions. [2021-03-11 20:40:37,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 148 transitions, 1922 flow [2021-03-11 20:40:37,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 148 transitions, 1815 flow, removed 35 selfloop flow, removed 5 redundant places. [2021-03-11 20:40:37,024 INFO L241 Difference]: Finished difference. Result has 161 places, 126 transitions, 1406 flow [2021-03-11 20:40:37,024 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1210, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1406, PETRI_PLACES=161, PETRI_TRANSITIONS=126} [2021-03-11 20:40:37,024 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 124 predicate places. [2021-03-11 20:40:37,024 INFO L480 AbstractCegarLoop]: Abstraction has has 161 places, 126 transitions, 1406 flow [2021-03-11 20:40:37,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:37,024 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:37,024 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 20:40:37,025 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-11 20:40:37,025 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 20:40:37,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:37,025 INFO L82 PathProgramCache]: Analyzing trace with hash 2045357632, now seen corresponding path program 12 times [2021-03-11 20:40:37,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:37,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702882043] [2021-03-11 20:40:37,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:37,076 INFO L142 QuantifierPusher]: treesize reduction 10, result has 76.2 percent of original size [2021-03-11 20:40:37,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:40:37,084 INFO L142 QuantifierPusher]: treesize reduction 7, result has 85.4 percent of original size [2021-03-11 20:40:37,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:37,097 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size [2021-03-11 20:40:37,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:37,112 INFO L142 QuantifierPusher]: treesize reduction 10, result has 79.2 percent of original size [2021-03-11 20:40:37,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:40:37,130 INFO L142 QuantifierPusher]: treesize reduction 10, result has 79.2 percent of original size [2021-03-11 20:40:37,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:40:37,149 INFO L142 QuantifierPusher]: treesize reduction 10, result has 76.7 percent of original size [2021-03-11 20:40:37,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:37,156 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-03-11 20:40:37,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:40:37,174 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.8 percent of original size [2021-03-11 20:40:37,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:40:37,196 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.1 percent of original size [2021-03-11 20:40:37,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:40:37,213 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.0 percent of original size [2021-03-11 20:40:37,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 20:40:37,232 INFO L142 QuantifierPusher]: treesize reduction 18, result has 62.5 percent of original size [2021-03-11 20:40:37,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 20:40:37,248 INFO L142 QuantifierPusher]: treesize reduction 45, result has 36.6 percent of original size [2021-03-11 20:40:37,248 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.5 percent of original size 23 [2021-03-11 20:40:37,273 INFO L142 QuantifierPusher]: treesize reduction 45, result has 35.7 percent of original size [2021-03-11 20:40:37,273 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-11 20:40:37,298 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 20:40:37,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:37,316 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 20:40:37,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:37,317 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 20:40:37,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:37,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:37,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:37,333 INFO L142 QuantifierPusher]: treesize reduction 9, result has 69.0 percent of original size [2021-03-11 20:40:37,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:37,349 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 20:40:37,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702882043] [2021-03-11 20:40:37,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:37,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:37,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075550967] [2021-03-11 20:40:37,350 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:37,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:37,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:37,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:37,352 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:37,352 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 126 transitions, 1406 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:37,352 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:37,352 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:37,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:38,394 INFO L129 PetriNetUnfolder]: 148/491 cut-off events. [2021-03-11 20:40:38,394 INFO L130 PetriNetUnfolder]: For 3599/3605 co-relation queries the response was YES. [2021-03-11 20:40:38,396 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2727 conditions, 491 events. 148/491 cut-off events. For 3599/3605 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3081 event pairs, 41 based on Foata normal form. 5/493 useless extension candidates. Maximal degree in co-relation 2667. Up to 315 conditions per place. [2021-03-11 20:40:38,398 INFO L132 encePairwiseOnDemand]: 314/332 looper letters, 113 selfloop transitions, 54 changer transitions 0/172 dead transitions. [2021-03-11 20:40:38,398 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 172 transitions, 2182 flow [2021-03-11 20:40:38,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-11 20:40:38,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-11 20:40:38,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2812 transitions. [2021-03-11 20:40:38,401 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4457831325301205 [2021-03-11 20:40:38,401 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2812 transitions. [2021-03-11 20:40:38,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2812 transitions. [2021-03-11 20:40:38,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:38,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2812 transitions. [2021-03-11 20:40:38,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 148.0) internal successors, (2812), 19 states have internal predecessors, (2812), 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 20:40:38,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 332.0) internal successors, (6640), 20 states have internal predecessors, (6640), 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 20:40:38,406 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 332.0) internal successors, (6640), 20 states have internal predecessors, (6640), 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 20:40:38,406 INFO L185 Difference]: Start difference. First operand has 161 places, 126 transitions, 1406 flow. Second operand 19 states and 2812 transitions. [2021-03-11 20:40:38,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 172 transitions, 2182 flow [2021-03-11 20:40:38,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 172 transitions, 2063 flow, removed 31 selfloop flow, removed 8 redundant places. [2021-03-11 20:40:38,421 INFO L241 Difference]: Finished difference. Result has 177 places, 147 transitions, 1718 flow [2021-03-11 20:40:38,421 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1314, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1718, PETRI_PLACES=177, PETRI_TRANSITIONS=147} [2021-03-11 20:40:38,421 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 140 predicate places. [2021-03-11 20:40:38,421 INFO L480 AbstractCegarLoop]: Abstraction has has 177 places, 147 transitions, 1718 flow [2021-03-11 20:40:38,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:38,421 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:38,421 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 20:40:38,421 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-11 20:40:38,421 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 20:40:38,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:38,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1173453658, now seen corresponding path program 13 times [2021-03-11 20:40:38,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:38,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13426622] [2021-03-11 20:40:38,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:38,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:38,493 INFO L142 QuantifierPusher]: treesize reduction 10, result has 76.2 percent of original size [2021-03-11 20:40:38,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:40:38,502 INFO L142 QuantifierPusher]: treesize reduction 7, result has 85.4 percent of original size [2021-03-11 20:40:38,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:38,515 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 20:40:38,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:38,531 INFO L142 QuantifierPusher]: treesize reduction 10, result has 79.2 percent of original size [2021-03-11 20:40:38,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:40:38,545 INFO L142 QuantifierPusher]: treesize reduction 10, result has 79.2 percent of original size [2021-03-11 20:40:38,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:40:38,560 INFO L142 QuantifierPusher]: treesize reduction 10, result has 76.7 percent of original size [2021-03-11 20:40:38,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:38,566 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-03-11 20:40:38,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:40:38,600 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.8 percent of original size [2021-03-11 20:40:38,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:40:38,629 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.1 percent of original size [2021-03-11 20:40:38,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:40:38,646 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.0 percent of original size [2021-03-11 20:40:38,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 20:40:38,670 INFO L142 QuantifierPusher]: treesize reduction 18, result has 62.5 percent of original size [2021-03-11 20:40:38,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 20:40:38,682 INFO L142 QuantifierPusher]: treesize reduction 45, result has 36.6 percent of original size [2021-03-11 20:40:38,682 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.5 percent of original size 23 [2021-03-11 20:40:38,706 INFO L142 QuantifierPusher]: treesize reduction 18, result has 53.8 percent of original size [2021-03-11 20:40:38,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 20:40:38,721 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 20:40:38,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:38,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:38,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:38,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:38,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:38,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:38,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:38,762 INFO L142 QuantifierPusher]: treesize reduction 9, result has 69.0 percent of original size [2021-03-11 20:40:38,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:38,793 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 20:40:38,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13426622] [2021-03-11 20:40:38,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:38,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:38,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197649660] [2021-03-11 20:40:38,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:38,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:38,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:38,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:38,795 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:38,796 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 147 transitions, 1718 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:38,796 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:38,796 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:38,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:39,722 INFO L129 PetriNetUnfolder]: 148/503 cut-off events. [2021-03-11 20:40:39,722 INFO L130 PetriNetUnfolder]: For 4134/4138 co-relation queries the response was YES. [2021-03-11 20:40:39,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2961 conditions, 503 events. 148/503 cut-off events. For 4134/4138 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3222 event pairs, 43 based on Foata normal form. 5/505 useless extension candidates. Maximal degree in co-relation 2895. Up to 320 conditions per place. [2021-03-11 20:40:39,725 INFO L132 encePairwiseOnDemand]: 314/332 looper letters, 110 selfloop transitions, 60 changer transitions 0/175 dead transitions. [2021-03-11 20:40:39,725 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 175 transitions, 2317 flow [2021-03-11 20:40:39,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-11 20:40:39,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-11 20:40:39,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2662 transitions. [2021-03-11 20:40:39,734 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44544846050870146 [2021-03-11 20:40:39,734 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2662 transitions. [2021-03-11 20:40:39,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2662 transitions. [2021-03-11 20:40:39,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:39,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2662 transitions. [2021-03-11 20:40:39,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 147.88888888888889) internal successors, (2662), 18 states have internal predecessors, (2662), 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 20:40:39,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 332.0) internal successors, (6308), 19 states have internal predecessors, (6308), 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 20:40:39,739 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 332.0) internal successors, (6308), 19 states have internal predecessors, (6308), 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 20:40:39,739 INFO L185 Difference]: Start difference. First operand has 177 places, 147 transitions, 1718 flow. Second operand 18 states and 2662 transitions. [2021-03-11 20:40:39,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 175 transitions, 2317 flow [2021-03-11 20:40:39,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 175 transitions, 2189 flow, removed 47 selfloop flow, removed 8 redundant places. [2021-03-11 20:40:39,757 INFO L241 Difference]: Finished difference. Result has 190 places, 156 transitions, 1869 flow [2021-03-11 20:40:39,757 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1600, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1869, PETRI_PLACES=190, PETRI_TRANSITIONS=156} [2021-03-11 20:40:39,758 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 153 predicate places. [2021-03-11 20:40:39,758 INFO L480 AbstractCegarLoop]: Abstraction has has 190 places, 156 transitions, 1869 flow [2021-03-11 20:40:39,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:39,758 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:39,758 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 20:40:39,758 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-11 20:40:39,758 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 20:40:39,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:39,758 INFO L82 PathProgramCache]: Analyzing trace with hash 2031181272, now seen corresponding path program 14 times [2021-03-11 20:40:39,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:39,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692349368] [2021-03-11 20:40:39,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:39,827 INFO L142 QuantifierPusher]: treesize reduction 20, result has 67.2 percent of original size [2021-03-11 20:40:39,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:39,849 INFO L142 QuantifierPusher]: treesize reduction 17, result has 75.7 percent of original size [2021-03-11 20:40:39,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 20:40:39,883 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-03-11 20:40:39,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:39,889 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-11 20:40:39,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:40:39,922 INFO L142 QuantifierPusher]: treesize reduction 20, result has 69.2 percent of original size [2021-03-11 20:40:39,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:39,929 INFO L142 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-03-11 20:40:39,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:39,959 INFO L142 QuantifierPusher]: treesize reduction 20, result has 73.0 percent of original size [2021-03-11 20:40:39,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-11 20:40:39,997 INFO L142 QuantifierPusher]: treesize reduction 12, result has 77.4 percent of original size [2021-03-11 20:40:39,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:40,029 INFO L142 QuantifierPusher]: treesize reduction 12, result has 77.4 percent of original size [2021-03-11 20:40:40,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:40,062 INFO L142 QuantifierPusher]: treesize reduction 27, result has 55.7 percent of original size [2021-03-11 20:40:40,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 20:40:40,079 INFO L142 QuantifierPusher]: treesize reduction 27, result has 55.0 percent of original size [2021-03-11 20:40:40,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:40,097 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-11 20:40:40,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:40:40,109 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-03-11 20:40:40,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:40,110 INFO L142 QuantifierPusher]: treesize reduction 46, result has 38.7 percent of original size [2021-03-11 20:40:40,110 INFO L147 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size 26 [2021-03-11 20:40:40,140 INFO L142 QuantifierPusher]: treesize reduction 45, result has 35.7 percent of original size [2021-03-11 20:40:40,140 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-11 20:40:40,172 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 20:40:40,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:40,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:40,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:40,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:40,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:40,217 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 20:40:40,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692349368] [2021-03-11 20:40:40,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:40,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:40,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627608352] [2021-03-11 20:40:40,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:40,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:40,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:40,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:40,219 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:40,219 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 156 transitions, 1869 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:40,220 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:40,220 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:40,220 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:41,100 INFO L129 PetriNetUnfolder]: 152/524 cut-off events. [2021-03-11 20:40:41,100 INFO L130 PetriNetUnfolder]: For 4519/4523 co-relation queries the response was YES. [2021-03-11 20:40:41,102 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3155 conditions, 524 events. 152/524 cut-off events. For 4519/4523 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3426 event pairs, 31 based on Foata normal form. 1/524 useless extension candidates. Maximal degree in co-relation 3084. Up to 315 conditions per place. [2021-03-11 20:40:41,104 INFO L132 encePairwiseOnDemand]: 317/332 looper letters, 128 selfloop transitions, 53 changer transitions 2/188 dead transitions. [2021-03-11 20:40:41,104 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 188 transitions, 2556 flow [2021-03-11 20:40:41,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 20:40:41,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-11 20:40:41,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2082 transitions. [2021-03-11 20:40:41,106 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44793459552495696 [2021-03-11 20:40:41,106 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2082 transitions. [2021-03-11 20:40:41,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2082 transitions. [2021-03-11 20:40:41,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:41,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2082 transitions. [2021-03-11 20:40:41,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 148.71428571428572) internal successors, (2082), 14 states have internal predecessors, (2082), 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 20:40:41,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:40:41,110 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:40:41,110 INFO L185 Difference]: Start difference. First operand has 190 places, 156 transitions, 1869 flow. Second operand 14 states and 2082 transitions. [2021-03-11 20:40:41,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 188 transitions, 2556 flow [2021-03-11 20:40:41,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 188 transitions, 2477 flow, removed 20 selfloop flow, removed 9 redundant places. [2021-03-11 20:40:41,131 INFO L241 Difference]: Finished difference. Result has 198 places, 160 transitions, 1970 flow [2021-03-11 20:40:41,131 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1790, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1970, PETRI_PLACES=198, PETRI_TRANSITIONS=160} [2021-03-11 20:40:41,131 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 161 predicate places. [2021-03-11 20:40:41,131 INFO L480 AbstractCegarLoop]: Abstraction has has 198 places, 160 transitions, 1970 flow [2021-03-11 20:40:41,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:41,131 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:41,132 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 20:40:41,132 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-11 20:40:41,132 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 20:40:41,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:41,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1240436686, now seen corresponding path program 15 times [2021-03-11 20:40:41,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:41,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529342263] [2021-03-11 20:40:41,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:41,188 INFO L142 QuantifierPusher]: treesize reduction 10, result has 78.3 percent of original size [2021-03-11 20:40:41,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 20:40:41,198 INFO L142 QuantifierPusher]: treesize reduction 7, result has 86.5 percent of original size [2021-03-11 20:40:41,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:41,214 INFO L142 QuantifierPusher]: treesize reduction 7, result has 84.1 percent of original size [2021-03-11 20:40:41,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 20:40:41,218 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.8 percent of original size [2021-03-11 20:40:41,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:40:41,236 INFO L142 QuantifierPusher]: treesize reduction 10, result has 78.7 percent of original size [2021-03-11 20:40:41,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 20:40:41,242 INFO L142 QuantifierPusher]: treesize reduction 10, result has 75.6 percent of original size [2021-03-11 20:40:41,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:40:41,260 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.1 percent of original size [2021-03-11 20:40:41,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-11 20:40:41,282 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size [2021-03-11 20:40:41,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 20:40:41,300 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size [2021-03-11 20:40:41,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 20:40:41,325 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.8 percent of original size [2021-03-11 20:40:41,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-11 20:40:41,345 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-11 20:40:41,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 20:40:41,356 INFO L142 QuantifierPusher]: treesize reduction 46, result has 39.5 percent of original size [2021-03-11 20:40:41,356 INFO L147 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size 27 [2021-03-11 20:40:41,384 INFO L142 QuantifierPusher]: treesize reduction 46, result has 38.7 percent of original size [2021-03-11 20:40:41,384 INFO L147 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size 26 [2021-03-11 20:40:41,412 INFO L142 QuantifierPusher]: treesize reduction 19, result has 55.8 percent of original size [2021-03-11 20:40:41,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-11 20:40:41,431 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-11 20:40:41,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:41,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:41,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:41,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:41,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:41,481 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 20:40:41,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529342263] [2021-03-11 20:40:41,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:41,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:41,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548474617] [2021-03-11 20:40:41,481 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:41,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:41,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:41,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:41,483 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:41,484 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 160 transitions, 1970 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:41,484 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:41,484 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:41,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:42,412 INFO L129 PetriNetUnfolder]: 158/552 cut-off events. [2021-03-11 20:40:42,412 INFO L130 PetriNetUnfolder]: For 5437/5441 co-relation queries the response was YES. [2021-03-11 20:40:42,414 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3448 conditions, 552 events. 158/552 cut-off events. For 5437/5441 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3694 event pairs, 34 based on Foata normal form. 1/552 useless extension candidates. Maximal degree in co-relation 3372. Up to 334 conditions per place. [2021-03-11 20:40:42,416 INFO L132 encePairwiseOnDemand]: 316/332 looper letters, 133 selfloop transitions, 64 changer transitions 0/202 dead transitions. [2021-03-11 20:40:42,416 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 202 transitions, 2840 flow [2021-03-11 20:40:42,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-11 20:40:42,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-11 20:40:42,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2377 transitions. [2021-03-11 20:40:42,418 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4474774096385542 [2021-03-11 20:40:42,418 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2377 transitions. [2021-03-11 20:40:42,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2377 transitions. [2021-03-11 20:40:42,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:42,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2377 transitions. [2021-03-11 20:40:42,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 148.5625) internal successors, (2377), 16 states have internal predecessors, (2377), 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 20:40:42,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 332.0) internal successors, (5644), 17 states have internal predecessors, (5644), 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 20:40:42,423 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 332.0) internal successors, (5644), 17 states have internal predecessors, (5644), 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 20:40:42,423 INFO L185 Difference]: Start difference. First operand has 198 places, 160 transitions, 1970 flow. Second operand 16 states and 2377 transitions. [2021-03-11 20:40:42,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 202 transitions, 2840 flow [2021-03-11 20:40:42,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 202 transitions, 2635 flow, removed 44 selfloop flow, removed 11 redundant places. [2021-03-11 20:40:42,446 INFO L241 Difference]: Finished difference. Result has 207 places, 176 transitions, 2191 flow [2021-03-11 20:40:42,447 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1817, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2191, PETRI_PLACES=207, PETRI_TRANSITIONS=176} [2021-03-11 20:40:42,447 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 170 predicate places. [2021-03-11 20:40:42,447 INFO L480 AbstractCegarLoop]: Abstraction has has 207 places, 176 transitions, 2191 flow [2021-03-11 20:40:42,447 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:42,447 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:42,447 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 20:40:42,447 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-11 20:40:42,447 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 20:40:42,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:42,448 INFO L82 PathProgramCache]: Analyzing trace with hash -2146955180, now seen corresponding path program 16 times [2021-03-11 20:40:42,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:42,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510776833] [2021-03-11 20:40:42,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:42,502 INFO L142 QuantifierPusher]: treesize reduction 10, result has 76.2 percent of original size [2021-03-11 20:40:42,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:40:42,510 INFO L142 QuantifierPusher]: treesize reduction 7, result has 85.4 percent of original size [2021-03-11 20:40:42,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:42,523 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 20:40:42,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:42,539 INFO L142 QuantifierPusher]: treesize reduction 10, result has 79.2 percent of original size [2021-03-11 20:40:42,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:40:42,556 INFO L142 QuantifierPusher]: treesize reduction 10, result has 76.7 percent of original size [2021-03-11 20:40:42,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:42,562 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-03-11 20:40:42,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:40:42,580 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.8 percent of original size [2021-03-11 20:40:42,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:40:42,600 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.1 percent of original size [2021-03-11 20:40:42,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:40:42,617 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.1 percent of original size [2021-03-11 20:40:42,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:40:42,635 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.0 percent of original size [2021-03-11 20:40:42,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 20:40:42,654 INFO L142 QuantifierPusher]: treesize reduction 18, result has 62.5 percent of original size [2021-03-11 20:40:42,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 20:40:42,665 INFO L142 QuantifierPusher]: treesize reduction 45, result has 36.6 percent of original size [2021-03-11 20:40:42,665 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.5 percent of original size 23 [2021-03-11 20:40:42,689 INFO L142 QuantifierPusher]: treesize reduction 18, result has 53.8 percent of original size [2021-03-11 20:40:42,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 20:40:42,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:42,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 20:40:42,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:42,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:42,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:42,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:42,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:42,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:42,735 INFO L142 QuantifierPusher]: treesize reduction 9, result has 69.0 percent of original size [2021-03-11 20:40:42,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:42,752 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 20:40:42,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510776833] [2021-03-11 20:40:42,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:42,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:42,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105125095] [2021-03-11 20:40:42,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:42,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:42,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:42,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:42,754 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:42,755 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 176 transitions, 2191 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:42,755 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:42,755 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:42,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:43,687 INFO L129 PetriNetUnfolder]: 160/578 cut-off events. [2021-03-11 20:40:43,687 INFO L130 PetriNetUnfolder]: For 6517/6521 co-relation queries the response was YES. [2021-03-11 20:40:43,690 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3687 conditions, 578 events. 160/578 cut-off events. For 6517/6521 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 3996 event pairs, 35 based on Foata normal form. 1/578 useless extension candidates. Maximal degree in co-relation 3609. Up to 333 conditions per place. [2021-03-11 20:40:43,692 INFO L132 encePairwiseOnDemand]: 314/332 looper letters, 122 selfloop transitions, 83 changer transitions 0/210 dead transitions. [2021-03-11 20:40:43,692 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 210 transitions, 3024 flow [2021-03-11 20:40:43,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-11 20:40:43,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-11 20:40:43,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2665 transitions. [2021-03-11 20:40:43,694 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44595046854083 [2021-03-11 20:40:43,694 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2665 transitions. [2021-03-11 20:40:43,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2665 transitions. [2021-03-11 20:40:43,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:43,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2665 transitions. [2021-03-11 20:40:43,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 148.05555555555554) internal successors, (2665), 18 states have internal predecessors, (2665), 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 20:40:43,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 332.0) internal successors, (6308), 19 states have internal predecessors, (6308), 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 20:40:43,700 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 332.0) internal successors, (6308), 19 states have internal predecessors, (6308), 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 20:40:43,700 INFO L185 Difference]: Start difference. First operand has 207 places, 176 transitions, 2191 flow. Second operand 18 states and 2665 transitions. [2021-03-11 20:40:43,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 210 transitions, 3024 flow [2021-03-11 20:40:43,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 210 transitions, 2842 flow, removed 61 selfloop flow, removed 6 redundant places. [2021-03-11 20:40:43,728 INFO L241 Difference]: Finished difference. Result has 222 places, 187 transitions, 2427 flow [2021-03-11 20:40:43,728 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=2045, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2427, PETRI_PLACES=222, PETRI_TRANSITIONS=187} [2021-03-11 20:40:43,728 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 185 predicate places. [2021-03-11 20:40:43,728 INFO L480 AbstractCegarLoop]: Abstraction has has 222 places, 187 transitions, 2427 flow [2021-03-11 20:40:43,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:43,728 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:43,728 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 20:40:43,729 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-11 20:40:43,729 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 20:40:43,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:43,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1402864491, now seen corresponding path program 5 times [2021-03-11 20:40:43,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:43,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207741992] [2021-03-11 20:40:43,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:43,765 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size [2021-03-11 20:40:43,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 20:40:43,773 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size [2021-03-11 20:40:43,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 20:40:43,781 INFO L142 QuantifierPusher]: treesize reduction 18, result has 40.0 percent of original size [2021-03-11 20:40:43,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 20:40:43,788 INFO L142 QuantifierPusher]: treesize reduction 19, result has 52.5 percent of original size [2021-03-11 20:40:43,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 20:40:43,798 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-11 20:40:43,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:43,809 INFO L142 QuantifierPusher]: treesize reduction 19, result has 58.7 percent of original size [2021-03-11 20:40:43,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:40:43,817 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-11 20:40:43,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:43,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:43,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:43,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:43,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:43,836 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 20:40:43,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207741992] [2021-03-11 20:40:43,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:43,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 20:40:43,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817252524] [2021-03-11 20:40:43,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 20:40:43,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:43,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 20:40:43,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-03-11 20:40:43,838 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 332 [2021-03-11 20:40:43,838 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 187 transitions, 2427 flow. Second operand has 9 states, 9 states have (on average 159.88888888888889) internal successors, (1439), 9 states have internal predecessors, (1439), 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 20:40:43,838 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:43,838 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 332 [2021-03-11 20:40:43,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:44,168 INFO L129 PetriNetUnfolder]: 203/767 cut-off events. [2021-03-11 20:40:44,168 INFO L130 PetriNetUnfolder]: For 8885/8889 co-relation queries the response was YES. [2021-03-11 20:40:44,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4822 conditions, 767 events. 203/767 cut-off events. For 8885/8889 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 5985 event pairs, 52 based on Foata normal form. 14/781 useless extension candidates. Maximal degree in co-relation 4739. Up to 223 conditions per place. [2021-03-11 20:40:44,174 INFO L132 encePairwiseOnDemand]: 322/332 looper letters, 126 selfloop transitions, 57 changer transitions 66/262 dead transitions. [2021-03-11 20:40:44,174 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 262 transitions, 3789 flow [2021-03-11 20:40:44,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 20:40:44,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-11 20:40:44,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1309 transitions. [2021-03-11 20:40:44,176 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4928463855421687 [2021-03-11 20:40:44,176 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1309 transitions. [2021-03-11 20:40:44,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1309 transitions. [2021-03-11 20:40:44,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:44,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1309 transitions. [2021-03-11 20:40:44,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 163.625) internal successors, (1309), 8 states have internal predecessors, (1309), 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 20:40:44,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 332.0) internal successors, (2988), 9 states have internal predecessors, (2988), 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 20:40:44,179 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 332.0) internal successors, (2988), 9 states have internal predecessors, (2988), 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 20:40:44,179 INFO L185 Difference]: Start difference. First operand has 222 places, 187 transitions, 2427 flow. Second operand 8 states and 1309 transitions. [2021-03-11 20:40:44,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 262 transitions, 3789 flow [2021-03-11 20:40:44,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 262 transitions, 3657 flow, removed 47 selfloop flow, removed 8 redundant places. [2021-03-11 20:40:44,219 INFO L241 Difference]: Finished difference. Result has 222 places, 165 transitions, 2261 flow [2021-03-11 20:40:44,220 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=2200, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2261, PETRI_PLACES=222, PETRI_TRANSITIONS=165} [2021-03-11 20:40:44,220 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 185 predicate places. [2021-03-11 20:40:44,220 INFO L480 AbstractCegarLoop]: Abstraction has has 222 places, 165 transitions, 2261 flow [2021-03-11 20:40:44,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 159.88888888888889) internal successors, (1439), 9 states have internal predecessors, (1439), 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 20:40:44,220 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:44,220 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 20:40:44,220 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-11 20:40:44,220 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 20:40:44,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:44,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1688923582, now seen corresponding path program 17 times [2021-03-11 20:40:44,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:44,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551702000] [2021-03-11 20:40:44,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:44,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:44,266 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.9 percent of original size [2021-03-11 20:40:44,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:40:44,274 INFO L142 QuantifierPusher]: treesize reduction 9, result has 80.4 percent of original size [2021-03-11 20:40:44,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 20:40:44,286 INFO L142 QuantifierPusher]: treesize reduction 9, result has 76.3 percent of original size [2021-03-11 20:40:44,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:44,299 INFO L142 QuantifierPusher]: treesize reduction 9, result has 76.3 percent of original size [2021-03-11 20:40:44,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:44,313 INFO L142 QuantifierPusher]: treesize reduction 10, result has 78.3 percent of original size [2021-03-11 20:40:44,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 20:40:44,329 INFO L142 QuantifierPusher]: treesize reduction 10, result has 75.6 percent of original size [2021-03-11 20:40:44,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:40:44,337 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-11 20:40:44,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-11 20:40:44,352 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.0 percent of original size [2021-03-11 20:40:44,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 20:40:44,372 INFO L142 QuantifierPusher]: treesize reduction 8, result has 80.0 percent of original size [2021-03-11 20:40:44,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:40:44,389 INFO L142 QuantifierPusher]: treesize reduction 4, result has 90.9 percent of original size [2021-03-11 20:40:44,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 20:40:44,408 INFO L142 QuantifierPusher]: treesize reduction 4, result has 90.7 percent of original size [2021-03-11 20:40:44,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:44,428 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.9 percent of original size [2021-03-11 20:40:44,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:44,441 INFO L142 QuantifierPusher]: treesize reduction 34, result has 39.3 percent of original size [2021-03-11 20:40:44,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 20:40:44,466 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-03-11 20:40:44,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:44,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:44,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:44,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:44,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:44,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:44,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:44,515 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 20:40:44,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551702000] [2021-03-11 20:40:44,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:44,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:44,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134161967] [2021-03-11 20:40:44,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:44,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:44,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:44,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:44,517 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:44,517 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 165 transitions, 2261 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:44,517 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:44,518 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:44,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:45,266 INFO L129 PetriNetUnfolder]: 172/619 cut-off events. [2021-03-11 20:40:45,266 INFO L130 PetriNetUnfolder]: For 9085/9097 co-relation queries the response was YES. [2021-03-11 20:40:45,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4265 conditions, 619 events. 172/619 cut-off events. For 9085/9097 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4383 event pairs, 76 based on Foata normal form. 3/621 useless extension candidates. Maximal degree in co-relation 4180. Up to 499 conditions per place. [2021-03-11 20:40:45,271 INFO L132 encePairwiseOnDemand]: 318/332 looper letters, 143 selfloop transitions, 23 changer transitions 5/176 dead transitions. [2021-03-11 20:40:45,271 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 176 transitions, 2729 flow [2021-03-11 20:40:45,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 20:40:45,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-11 20:40:45,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2066 transitions. [2021-03-11 20:40:45,274 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4444922547332186 [2021-03-11 20:40:45,274 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2066 transitions. [2021-03-11 20:40:45,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2066 transitions. [2021-03-11 20:40:45,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:45,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2066 transitions. [2021-03-11 20:40:45,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 147.57142857142858) internal successors, (2066), 14 states have internal predecessors, (2066), 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 20:40:45,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:40:45,278 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:40:45,278 INFO L185 Difference]: Start difference. First operand has 222 places, 165 transitions, 2261 flow. Second operand 14 states and 2066 transitions. [2021-03-11 20:40:45,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 176 transitions, 2729 flow [2021-03-11 20:40:45,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 176 transitions, 2465 flow, removed 45 selfloop flow, removed 22 redundant places. [2021-03-11 20:40:45,314 INFO L241 Difference]: Finished difference. Result has 205 places, 166 transitions, 2069 flow [2021-03-11 20:40:45,314 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=2003, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2069, PETRI_PLACES=205, PETRI_TRANSITIONS=166} [2021-03-11 20:40:45,314 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 168 predicate places. [2021-03-11 20:40:45,314 INFO L480 AbstractCegarLoop]: Abstraction has has 205 places, 166 transitions, 2069 flow [2021-03-11 20:40:45,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:45,314 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:45,314 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 20:40:45,314 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-11 20:40:45,315 INFO L428 AbstractCegarLoop]: === Iteration 28 === [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 20:40:45,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:45,315 INFO L82 PathProgramCache]: Analyzing trace with hash 642224570, now seen corresponding path program 18 times [2021-03-11 20:40:45,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:45,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769788756] [2021-03-11 20:40:45,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:45,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:45,361 INFO L142 QuantifierPusher]: treesize reduction 20, result has 67.2 percent of original size [2021-03-11 20:40:45,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:45,382 INFO L142 QuantifierPusher]: treesize reduction 14, result has 79.1 percent of original size [2021-03-11 20:40:45,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 20:40:45,414 INFO L142 QuantifierPusher]: treesize reduction 14, result has 76.3 percent of original size [2021-03-11 20:40:45,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:45,419 INFO L142 QuantifierPusher]: treesize reduction 14, result has 76.3 percent of original size [2021-03-11 20:40:45,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:45,447 INFO L142 QuantifierPusher]: treesize reduction 7, result has 86.3 percent of original size [2021-03-11 20:40:45,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-11 20:40:45,477 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.4 percent of original size [2021-03-11 20:40:45,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:45,495 INFO L142 QuantifierPusher]: treesize reduction 10, result has 78.3 percent of original size [2021-03-11 20:40:45,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 20:40:45,502 INFO L142 QuantifierPusher]: treesize reduction 10, result has 75.0 percent of original size [2021-03-11 20:40:45,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 20:40:45,521 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.8 percent of original size [2021-03-11 20:40:45,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:45,545 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.9 percent of original size [2021-03-11 20:40:45,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:40:45,563 INFO L142 QuantifierPusher]: treesize reduction 26, result has 52.7 percent of original size [2021-03-11 20:40:45,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:45,579 INFO L142 QuantifierPusher]: treesize reduction 18, result has 68.4 percent of original size [2021-03-11 20:40:45,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:45,592 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 20:40:45,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:45,593 INFO L142 QuantifierPusher]: treesize reduction 45, result has 35.7 percent of original size [2021-03-11 20:40:45,593 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-11 20:40:45,619 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 20:40:45,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:45,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:45,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:45,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:45,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:45,665 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 20:40:45,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769788756] [2021-03-11 20:40:45,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:45,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-11 20:40:45,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660976687] [2021-03-11 20:40:45,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 20:40:45,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:45,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 20:40:45,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2021-03-11 20:40:45,667 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:45,668 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 166 transitions, 2069 flow. Second operand has 15 states, 15 states have (on average 145.26666666666668) internal successors, (2179), 15 states have internal predecessors, (2179), 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 20:40:45,668 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:45,668 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:45,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:46,437 INFO L129 PetriNetUnfolder]: 171/617 cut-off events. [2021-03-11 20:40:46,438 INFO L130 PetriNetUnfolder]: For 6268/6280 co-relation queries the response was YES. [2021-03-11 20:40:46,440 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3902 conditions, 617 events. 171/617 cut-off events. For 6268/6280 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4386 event pairs, 75 based on Foata normal form. 2/617 useless extension candidates. Maximal degree in co-relation 3826. Up to 495 conditions per place. [2021-03-11 20:40:46,443 INFO L132 encePairwiseOnDemand]: 318/332 looper letters, 141 selfloop transitions, 12 changer transitions 25/183 dead transitions. [2021-03-11 20:40:46,443 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 183 transitions, 2632 flow [2021-03-11 20:40:46,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 20:40:46,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 20:40:46,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1924 transitions. [2021-03-11 20:40:46,445 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4457831325301205 [2021-03-11 20:40:46,445 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1924 transitions. [2021-03-11 20:40:46,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1924 transitions. [2021-03-11 20:40:46,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:46,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1924 transitions. [2021-03-11 20:40:46,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 148.0) internal successors, (1924), 13 states have internal predecessors, (1924), 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 20:40:46,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:40:46,449 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:40:46,449 INFO L185 Difference]: Start difference. First operand has 205 places, 166 transitions, 2069 flow. Second operand 13 states and 1924 transitions. [2021-03-11 20:40:46,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 183 transitions, 2632 flow [2021-03-11 20:40:46,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 183 transitions, 2488 flow, removed 8 selfloop flow, removed 16 redundant places. [2021-03-11 20:40:46,474 INFO L241 Difference]: Finished difference. Result has 205 places, 158 transitions, 1858 flow [2021-03-11 20:40:46,474 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1921, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1858, PETRI_PLACES=205, PETRI_TRANSITIONS=158} [2021-03-11 20:40:46,474 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 168 predicate places. [2021-03-11 20:40:46,474 INFO L480 AbstractCegarLoop]: Abstraction has has 205 places, 158 transitions, 1858 flow [2021-03-11 20:40:46,475 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 145.26666666666668) internal successors, (2179), 15 states have internal predecessors, (2179), 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 20:40:46,475 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:46,475 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 20:40:46,475 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-11 20:40:46,475 INFO L428 AbstractCegarLoop]: === Iteration 29 === [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 20:40:46,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:46,475 INFO L82 PathProgramCache]: Analyzing trace with hash -918341931, now seen corresponding path program 6 times [2021-03-11 20:40:46,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:46,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127875325] [2021-03-11 20:40:46,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:46,510 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size [2021-03-11 20:40:46,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 20:40:46,518 INFO L142 QuantifierPusher]: treesize reduction 2, result has 90.0 percent of original size [2021-03-11 20:40:46,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-11 20:40:46,526 INFO L142 QuantifierPusher]: treesize reduction 18, result has 40.0 percent of original size [2021-03-11 20:40:46,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 20:40:46,533 INFO L142 QuantifierPusher]: treesize reduction 18, result has 37.9 percent of original size [2021-03-11 20:40:46,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 20:40:46,541 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 20:40:46,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:46,552 INFO L142 QuantifierPusher]: treesize reduction 18, result has 60.0 percent of original size [2021-03-11 20:40:46,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:40:46,560 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 20:40:46,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:46,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:46,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:46,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:46,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:46,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:46,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:46,579 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 20:40:46,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127875325] [2021-03-11 20:40:46,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:46,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 20:40:46,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037379579] [2021-03-11 20:40:46,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 20:40:46,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:46,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 20:40:46,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-11 20:40:46,581 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 332 [2021-03-11 20:40:46,581 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 158 transitions, 1858 flow. Second operand has 9 states, 9 states have (on average 159.88888888888889) internal successors, (1439), 9 states have internal predecessors, (1439), 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 20:40:46,581 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:46,581 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 332 [2021-03-11 20:40:46,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:46,935 INFO L129 PetriNetUnfolder]: 150/555 cut-off events. [2021-03-11 20:40:46,935 INFO L130 PetriNetUnfolder]: For 5134/5138 co-relation queries the response was YES. [2021-03-11 20:40:46,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3405 conditions, 555 events. 150/555 cut-off events. For 5134/5138 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3870 event pairs, 40 based on Foata normal form. 8/562 useless extension candidates. Maximal degree in co-relation 3328. Up to 238 conditions per place. [2021-03-11 20:40:46,939 INFO L132 encePairwiseOnDemand]: 322/332 looper letters, 77 selfloop transitions, 39 changer transitions 51/178 dead transitions. [2021-03-11 20:40:46,939 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 178 transitions, 2400 flow [2021-03-11 20:40:46,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-11 20:40:46,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-11 20:40:46,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1472 transitions. [2021-03-11 20:40:46,941 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4926372155287818 [2021-03-11 20:40:46,941 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1472 transitions. [2021-03-11 20:40:46,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1472 transitions. [2021-03-11 20:40:46,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:46,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1472 transitions. [2021-03-11 20:40:46,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 163.55555555555554) internal successors, (1472), 9 states have internal predecessors, (1472), 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 20:40:46,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 332.0) internal successors, (3320), 10 states have internal predecessors, (3320), 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 20:40:46,943 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 332.0) internal successors, (3320), 10 states have internal predecessors, (3320), 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 20:40:46,943 INFO L185 Difference]: Start difference. First operand has 205 places, 158 transitions, 1858 flow. Second operand 9 states and 1472 transitions. [2021-03-11 20:40:46,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 178 transitions, 2400 flow [2021-03-11 20:40:46,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 178 transitions, 2346 flow, removed 13 selfloop flow, removed 13 redundant places. [2021-03-11 20:40:46,965 INFO L241 Difference]: Finished difference. Result has 185 places, 111 transitions, 1397 flow [2021-03-11 20:40:46,965 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1748, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1397, PETRI_PLACES=185, PETRI_TRANSITIONS=111} [2021-03-11 20:40:46,965 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 148 predicate places. [2021-03-11 20:40:46,965 INFO L480 AbstractCegarLoop]: Abstraction has has 185 places, 111 transitions, 1397 flow [2021-03-11 20:40:46,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 159.88888888888889) internal successors, (1439), 9 states have internal predecessors, (1439), 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 20:40:46,966 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:46,966 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 20:40:46,966 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-11 20:40:46,966 INFO L428 AbstractCegarLoop]: === Iteration 30 === [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 20:40:46,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:46,966 INFO L82 PathProgramCache]: Analyzing trace with hash 442654954, now seen corresponding path program 19 times [2021-03-11 20:40:46,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:46,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729295723] [2021-03-11 20:40:46,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:47,012 INFO L142 QuantifierPusher]: treesize reduction 16, result has 69.8 percent of original size [2021-03-11 20:40:47,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 20:40:47,029 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.1 percent of original size [2021-03-11 20:40:47,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 20:40:47,058 INFO L142 QuantifierPusher]: treesize reduction 10, result has 79.2 percent of original size [2021-03-11 20:40:47,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:40:47,074 INFO L142 QuantifierPusher]: treesize reduction 10, result has 76.7 percent of original size [2021-03-11 20:40:47,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:47,079 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-03-11 20:40:47,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:40:47,093 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-03-11 20:40:47,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:40:47,108 INFO L142 QuantifierPusher]: treesize reduction 10, result has 79.2 percent of original size [2021-03-11 20:40:47,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:40:47,149 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.6 percent of original size [2021-03-11 20:40:47,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-11 20:40:47,186 INFO L142 QuantifierPusher]: treesize reduction 9, result has 80.0 percent of original size [2021-03-11 20:40:47,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 20:40:47,215 INFO L142 QuantifierPusher]: treesize reduction 31, result has 48.3 percent of original size [2021-03-11 20:40:47,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:47,233 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-11 20:40:47,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:47,244 INFO L142 QuantifierPusher]: treesize reduction 19, result has 60.4 percent of original size [2021-03-11 20:40:47,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:47,245 INFO L142 QuantifierPusher]: treesize reduction 46, result has 35.2 percent of original size [2021-03-11 20:40:47,245 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-11 20:40:47,269 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-11 20:40:47,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:47,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:47,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:47,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:47,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:47,313 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 20:40:47,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729295723] [2021-03-11 20:40:47,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:47,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-11 20:40:47,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120726113] [2021-03-11 20:40:47,314 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 20:40:47,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:47,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 20:40:47,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-03-11 20:40:47,315 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:47,316 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 111 transitions, 1397 flow. Second operand has 15 states, 15 states have (on average 145.26666666666668) internal successors, (2179), 15 states have internal predecessors, (2179), 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 20:40:47,316 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:47,316 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:47,316 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:47,941 INFO L129 PetriNetUnfolder]: 101/365 cut-off events. [2021-03-11 20:40:47,941 INFO L130 PetriNetUnfolder]: For 4812/4816 co-relation queries the response was YES. [2021-03-11 20:40:47,943 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2548 conditions, 365 events. 101/365 cut-off events. For 4812/4816 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2127 event pairs, 31 based on Foata normal form. 2/366 useless extension candidates. Maximal degree in co-relation 2477. Up to 277 conditions per place. [2021-03-11 20:40:47,944 INFO L132 encePairwiseOnDemand]: 319/332 looper letters, 100 selfloop transitions, 10 changer transitions 23/138 dead transitions. [2021-03-11 20:40:47,944 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 138 transitions, 2008 flow [2021-03-11 20:40:47,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 20:40:47,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-11 20:40:47,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2063 transitions. [2021-03-11 20:40:47,946 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44384681583476765 [2021-03-11 20:40:47,946 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2063 transitions. [2021-03-11 20:40:47,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2063 transitions. [2021-03-11 20:40:47,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:47,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2063 transitions. [2021-03-11 20:40:47,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 147.35714285714286) internal successors, (2063), 14 states have internal predecessors, (2063), 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 20:40:47,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:40:47,950 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:40:47,950 INFO L185 Difference]: Start difference. First operand has 185 places, 111 transitions, 1397 flow. Second operand 14 states and 2063 transitions. [2021-03-11 20:40:47,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 138 transitions, 2008 flow [2021-03-11 20:40:47,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 138 transitions, 1802 flow, removed 45 selfloop flow, removed 23 redundant places. [2021-03-11 20:40:47,962 INFO L241 Difference]: Finished difference. Result has 163 places, 115 transitions, 1335 flow [2021-03-11 20:40:47,963 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1243, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1335, PETRI_PLACES=163, PETRI_TRANSITIONS=115} [2021-03-11 20:40:47,963 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 126 predicate places. [2021-03-11 20:40:47,963 INFO L480 AbstractCegarLoop]: Abstraction has has 163 places, 115 transitions, 1335 flow [2021-03-11 20:40:47,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 145.26666666666668) internal successors, (2179), 15 states have internal predecessors, (2179), 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 20:40:47,963 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:47,963 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 20:40:47,963 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-11 20:40:47,963 INFO L428 AbstractCegarLoop]: === Iteration 31 === [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 20:40:47,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:47,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1245965460, now seen corresponding path program 20 times [2021-03-11 20:40:47,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:47,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930385517] [2021-03-11 20:40:47,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:48,019 INFO L142 QuantifierPusher]: treesize reduction 16, result has 69.8 percent of original size [2021-03-11 20:40:48,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 20:40:48,036 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.1 percent of original size [2021-03-11 20:40:48,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-11 20:40:48,069 INFO L142 QuantifierPusher]: treesize reduction 10, result has 79.2 percent of original size [2021-03-11 20:40:48,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:40:48,086 INFO L142 QuantifierPusher]: treesize reduction 10, result has 76.7 percent of original size [2021-03-11 20:40:48,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:48,092 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-03-11 20:40:48,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:40:48,108 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-03-11 20:40:48,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:40:48,124 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.8 percent of original size [2021-03-11 20:40:48,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:40:48,146 INFO L142 QuantifierPusher]: treesize reduction 13, result has 80.6 percent of original size [2021-03-11 20:40:48,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-11 20:40:48,184 INFO L142 QuantifierPusher]: treesize reduction 9, result has 80.0 percent of original size [2021-03-11 20:40:48,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-11 20:40:48,215 INFO L142 QuantifierPusher]: treesize reduction 31, result has 48.3 percent of original size [2021-03-11 20:40:48,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:48,232 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-11 20:40:48,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:48,245 INFO L142 QuantifierPusher]: treesize reduction 19, result has 60.4 percent of original size [2021-03-11 20:40:48,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:40:48,246 INFO L142 QuantifierPusher]: treesize reduction 46, result has 35.2 percent of original size [2021-03-11 20:40:48,246 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-11 20:40:48,271 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-11 20:40:48,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:48,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:48,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:48,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:48,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:48,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 20:40:48,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930385517] [2021-03-11 20:40:48,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:48,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-11 20:40:48,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620818445] [2021-03-11 20:40:48,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 20:40:48,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:48,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 20:40:48,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-03-11 20:40:48,318 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:48,319 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 115 transitions, 1335 flow. Second operand has 15 states, 15 states have (on average 145.26666666666668) internal successors, (2179), 15 states have internal predecessors, (2179), 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 20:40:48,319 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:48,319 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:48,319 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:48,979 INFO L129 PetriNetUnfolder]: 105/380 cut-off events. [2021-03-11 20:40:48,979 INFO L130 PetriNetUnfolder]: For 3635/3640 co-relation queries the response was YES. [2021-03-11 20:40:48,981 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2415 conditions, 380 events. 105/380 cut-off events. For 3635/3640 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2259 event pairs, 31 based on Foata normal form. 1/380 useless extension candidates. Maximal degree in co-relation 2351. Up to 280 conditions per place. [2021-03-11 20:40:48,982 INFO L132 encePairwiseOnDemand]: 319/332 looper letters, 106 selfloop transitions, 14 changer transitions 21/146 dead transitions. [2021-03-11 20:40:48,982 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 146 transitions, 1986 flow [2021-03-11 20:40:48,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 20:40:48,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-11 20:40:48,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2068 transitions. [2021-03-11 20:40:48,983 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4449225473321859 [2021-03-11 20:40:48,983 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2068 transitions. [2021-03-11 20:40:48,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2068 transitions. [2021-03-11 20:40:48,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:48,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2068 transitions. [2021-03-11 20:40:48,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 147.71428571428572) internal successors, (2068), 14 states have internal predecessors, (2068), 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 20:40:48,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:40:48,987 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:40:48,987 INFO L185 Difference]: Start difference. First operand has 163 places, 115 transitions, 1335 flow. Second operand 14 states and 2068 transitions. [2021-03-11 20:40:48,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 146 transitions, 1986 flow [2021-03-11 20:40:48,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 146 transitions, 1900 flow, removed 32 selfloop flow, removed 13 redundant places. [2021-03-11 20:40:48,999 INFO L241 Difference]: Finished difference. Result has 163 places, 119 transitions, 1381 flow [2021-03-11 20:40:48,999 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1275, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1381, PETRI_PLACES=163, PETRI_TRANSITIONS=119} [2021-03-11 20:40:48,999 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 126 predicate places. [2021-03-11 20:40:48,999 INFO L480 AbstractCegarLoop]: Abstraction has has 163 places, 119 transitions, 1381 flow [2021-03-11 20:40:48,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 145.26666666666668) internal successors, (2179), 15 states have internal predecessors, (2179), 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 20:40:48,999 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:49,000 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 20:40:49,000 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-11 20:40:49,000 INFO L428 AbstractCegarLoop]: === Iteration 32 === [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 20:40:49,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:49,000 INFO L82 PathProgramCache]: Analyzing trace with hash -398969598, now seen corresponding path program 21 times [2021-03-11 20:40:49,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:49,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170243667] [2021-03-11 20:40:49,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:49,049 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.0 percent of original size [2021-03-11 20:40:49,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:40:49,071 INFO L142 QuantifierPusher]: treesize reduction 12, result has 81.8 percent of original size [2021-03-11 20:40:49,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-11 20:40:49,108 INFO L142 QuantifierPusher]: treesize reduction 12, result has 79.3 percent of original size [2021-03-11 20:40:49,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-11 20:40:49,114 INFO L142 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-03-11 20:40:49,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:40:49,148 INFO L142 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-03-11 20:40:49,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:40:49,180 INFO L142 QuantifierPusher]: treesize reduction 43, result has 51.1 percent of original size [2021-03-11 20:40:49,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:49,186 INFO L142 QuantifierPusher]: treesize reduction 43, result has 47.6 percent of original size [2021-03-11 20:40:49,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:49,216 INFO L142 QuantifierPusher]: treesize reduction 36, result has 49.3 percent of original size [2021-03-11 20:40:49,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 20:40:49,245 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.1 percent of original size [2021-03-11 20:40:49,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:40:49,282 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.9 percent of original size [2021-03-11 20:40:49,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 20:40:49,320 INFO L142 QuantifierPusher]: treesize reduction 27, result has 55.0 percent of original size [2021-03-11 20:40:49,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:49,338 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-11 20:40:49,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:40:49,350 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-03-11 20:40:49,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:49,351 INFO L142 QuantifierPusher]: treesize reduction 46, result has 38.7 percent of original size [2021-03-11 20:40:49,352 INFO L147 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size 26 [2021-03-11 20:40:49,378 INFO L142 QuantifierPusher]: treesize reduction 45, result has 35.7 percent of original size [2021-03-11 20:40:49,378 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-11 20:40:49,403 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 20:40:49,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:49,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:49,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:49,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:49,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:49,447 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 20:40:49,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170243667] [2021-03-11 20:40:49,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:49,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:49,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108011798] [2021-03-11 20:40:49,448 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:49,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:49,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:49,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:49,449 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:49,450 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 119 transitions, 1381 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:49,450 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:49,450 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:49,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:50,222 INFO L129 PetriNetUnfolder]: 106/391 cut-off events. [2021-03-11 20:40:50,222 INFO L130 PetriNetUnfolder]: For 3322/3327 co-relation queries the response was YES. [2021-03-11 20:40:50,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2403 conditions, 391 events. 106/391 cut-off events. For 3322/3327 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2379 event pairs, 26 based on Foata normal form. 1/391 useless extension candidates. Maximal degree in co-relation 2342. Up to 261 conditions per place. [2021-03-11 20:40:50,225 INFO L132 encePairwiseOnDemand]: 319/332 looper letters, 102 selfloop transitions, 15 changer transitions 29/151 dead transitions. [2021-03-11 20:40:50,225 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 151 transitions, 2017 flow [2021-03-11 20:40:50,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 20:40:50,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 20:40:50,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1927 transitions. [2021-03-11 20:40:50,227 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4464782205746061 [2021-03-11 20:40:50,227 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1927 transitions. [2021-03-11 20:40:50,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1927 transitions. [2021-03-11 20:40:50,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:50,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1927 transitions. [2021-03-11 20:40:50,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 148.23076923076923) internal successors, (1927), 13 states have internal predecessors, (1927), 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 20:40:50,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:40:50,230 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:40:50,230 INFO L185 Difference]: Start difference. First operand has 163 places, 119 transitions, 1381 flow. Second operand 13 states and 1927 transitions. [2021-03-11 20:40:50,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 151 transitions, 2017 flow [2021-03-11 20:40:50,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 151 transitions, 1973 flow, removed 11 selfloop flow, removed 11 redundant places. [2021-03-11 20:40:50,242 INFO L241 Difference]: Finished difference. Result has 166 places, 119 transitions, 1401 flow [2021-03-11 20:40:50,242 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1345, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1401, PETRI_PLACES=166, PETRI_TRANSITIONS=119} [2021-03-11 20:40:50,242 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 129 predicate places. [2021-03-11 20:40:50,243 INFO L480 AbstractCegarLoop]: Abstraction has has 166 places, 119 transitions, 1401 flow [2021-03-11 20:40:50,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:50,243 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:50,243 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 20:40:50,243 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-11 20:40:50,243 INFO L428 AbstractCegarLoop]: === Iteration 33 === [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 20:40:50,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:50,243 INFO L82 PathProgramCache]: Analyzing trace with hash -286986368, now seen corresponding path program 22 times [2021-03-11 20:40:50,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:50,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156972158] [2021-03-11 20:40:50,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:50,308 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.0 percent of original size [2021-03-11 20:40:50,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:40:50,332 INFO L142 QuantifierPusher]: treesize reduction 12, result has 81.8 percent of original size [2021-03-11 20:40:50,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-11 20:40:50,370 INFO L142 QuantifierPusher]: treesize reduction 12, result has 79.3 percent of original size [2021-03-11 20:40:50,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-11 20:40:50,375 INFO L142 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-03-11 20:40:50,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:40:50,407 INFO L142 QuantifierPusher]: treesize reduction 43, result has 53.8 percent of original size [2021-03-11 20:40:50,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:40:50,438 INFO L142 QuantifierPusher]: treesize reduction 43, result has 51.1 percent of original size [2021-03-11 20:40:50,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:50,449 INFO L142 QuantifierPusher]: treesize reduction 36, result has 53.2 percent of original size [2021-03-11 20:40:50,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:50,481 INFO L142 QuantifierPusher]: treesize reduction 36, result has 49.3 percent of original size [2021-03-11 20:40:50,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 20:40:50,513 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.1 percent of original size [2021-03-11 20:40:50,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:40:50,549 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.9 percent of original size [2021-03-11 20:40:50,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 20:40:50,581 INFO L142 QuantifierPusher]: treesize reduction 27, result has 55.0 percent of original size [2021-03-11 20:40:50,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:50,598 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-11 20:40:50,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:40:50,611 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-03-11 20:40:50,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:50,612 INFO L142 QuantifierPusher]: treesize reduction 46, result has 38.7 percent of original size [2021-03-11 20:40:50,612 INFO L147 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size 26 [2021-03-11 20:40:50,641 INFO L142 QuantifierPusher]: treesize reduction 45, result has 35.7 percent of original size [2021-03-11 20:40:50,641 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-11 20:40:50,668 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 20:40:50,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:50,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:50,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:50,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:50,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:50,715 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 20:40:50,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156972158] [2021-03-11 20:40:50,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:50,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:50,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735692996] [2021-03-11 20:40:50,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:50,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:50,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:50,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:50,716 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:50,717 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 119 transitions, 1401 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:50,717 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:50,717 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:50,717 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:51,461 INFO L129 PetriNetUnfolder]: 104/386 cut-off events. [2021-03-11 20:40:51,461 INFO L130 PetriNetUnfolder]: For 3571/3576 co-relation queries the response was YES. [2021-03-11 20:40:51,462 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2414 conditions, 386 events. 104/386 cut-off events. For 3571/3576 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2343 event pairs, 28 based on Foata normal form. 5/390 useless extension candidates. Maximal degree in co-relation 2351. Up to 215 conditions per place. [2021-03-11 20:40:51,463 INFO L132 encePairwiseOnDemand]: 319/332 looper letters, 79 selfloop transitions, 13 changer transitions 48/145 dead transitions. [2021-03-11 20:40:51,463 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 145 transitions, 1934 flow [2021-03-11 20:40:51,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 20:40:51,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 20:40:51,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1928 transitions. [2021-03-11 20:40:51,465 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44670991658943465 [2021-03-11 20:40:51,465 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1928 transitions. [2021-03-11 20:40:51,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1928 transitions. [2021-03-11 20:40:51,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:51,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1928 transitions. [2021-03-11 20:40:51,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 148.30769230769232) internal successors, (1928), 13 states have internal predecessors, (1928), 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 20:40:51,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:40:51,468 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:40:51,468 INFO L185 Difference]: Start difference. First operand has 166 places, 119 transitions, 1401 flow. Second operand 13 states and 1928 transitions. [2021-03-11 20:40:51,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 145 transitions, 1934 flow [2021-03-11 20:40:51,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 145 transitions, 1868 flow, removed 15 selfloop flow, removed 11 redundant places. [2021-03-11 20:40:51,480 INFO L241 Difference]: Finished difference. Result has 167 places, 96 transitions, 1136 flow [2021-03-11 20:40:51,480 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1349, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1136, PETRI_PLACES=167, PETRI_TRANSITIONS=96} [2021-03-11 20:40:51,480 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 130 predicate places. [2021-03-11 20:40:51,480 INFO L480 AbstractCegarLoop]: Abstraction has has 167 places, 96 transitions, 1136 flow [2021-03-11 20:40:51,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:51,480 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:51,480 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 20:40:51,480 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-11 20:40:51,480 INFO L428 AbstractCegarLoop]: === Iteration 34 === [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 20:40:51,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:51,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1655810328, now seen corresponding path program 23 times [2021-03-11 20:40:51,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:51,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385155061] [2021-03-11 20:40:51,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:51,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:51,527 INFO L142 QuantifierPusher]: treesize reduction 20, result has 67.2 percent of original size [2021-03-11 20:40:51,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:51,546 INFO L142 QuantifierPusher]: treesize reduction 17, result has 75.7 percent of original size [2021-03-11 20:40:51,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 20:40:51,579 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-11 20:40:51,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 20:40:51,612 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-11 20:40:51,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:40:51,618 INFO L142 QuantifierPusher]: treesize reduction 20, result has 69.2 percent of original size [2021-03-11 20:40:51,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:51,624 INFO L142 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-03-11 20:40:51,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:51,652 INFO L142 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-03-11 20:40:51,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:51,682 INFO L142 QuantifierPusher]: treesize reduction 13, result has 72.9 percent of original size [2021-03-11 20:40:51,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 20:40:51,711 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.4 percent of original size [2021-03-11 20:40:51,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:40:51,747 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.9 percent of original size [2021-03-11 20:40:51,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 20:40:51,778 INFO L142 QuantifierPusher]: treesize reduction 27, result has 55.0 percent of original size [2021-03-11 20:40:51,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:51,795 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-11 20:40:51,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:40:51,807 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-03-11 20:40:51,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:51,808 INFO L142 QuantifierPusher]: treesize reduction 46, result has 38.7 percent of original size [2021-03-11 20:40:51,808 INFO L147 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size 26 [2021-03-11 20:40:51,834 INFO L142 QuantifierPusher]: treesize reduction 45, result has 35.7 percent of original size [2021-03-11 20:40:51,835 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-11 20:40:51,859 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 20:40:51,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:51,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:51,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:51,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:51,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:51,902 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 20:40:51,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385155061] [2021-03-11 20:40:51,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:51,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:51,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403132797] [2021-03-11 20:40:51,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:51,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:51,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:51,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:51,904 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:51,905 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 96 transitions, 1136 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:51,905 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:51,905 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:51,905 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:52,594 INFO L129 PetriNetUnfolder]: 82/315 cut-off events. [2021-03-11 20:40:52,594 INFO L130 PetriNetUnfolder]: For 3220/3225 co-relation queries the response was YES. [2021-03-11 20:40:52,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2003 conditions, 315 events. 82/315 cut-off events. For 3220/3225 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1815 event pairs, 27 based on Foata normal form. 2/316 useless extension candidates. Maximal degree in co-relation 1939. Up to 212 conditions per place. [2021-03-11 20:40:52,596 INFO L132 encePairwiseOnDemand]: 319/332 looper letters, 77 selfloop transitions, 14 changer transitions 24/120 dead transitions. [2021-03-11 20:40:52,596 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 120 transitions, 1652 flow [2021-03-11 20:40:52,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 20:40:52,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 20:40:52,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1925 transitions. [2021-03-11 20:40:52,598 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.446014828544949 [2021-03-11 20:40:52,598 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1925 transitions. [2021-03-11 20:40:52,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1925 transitions. [2021-03-11 20:40:52,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:52,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1925 transitions. [2021-03-11 20:40:52,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 148.07692307692307) internal successors, (1925), 13 states have internal predecessors, (1925), 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 20:40:52,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:40:52,601 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:40:52,601 INFO L185 Difference]: Start difference. First operand has 167 places, 96 transitions, 1136 flow. Second operand 13 states and 1925 transitions. [2021-03-11 20:40:52,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 120 transitions, 1652 flow [2021-03-11 20:40:52,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 120 transitions, 1482 flow, removed 54 selfloop flow, removed 23 redundant places. [2021-03-11 20:40:52,611 INFO L241 Difference]: Finished difference. Result has 148 places, 94 transitions, 1025 flow [2021-03-11 20:40:52,611 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=1004, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1025, PETRI_PLACES=148, PETRI_TRANSITIONS=94} [2021-03-11 20:40:52,611 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 111 predicate places. [2021-03-11 20:40:52,611 INFO L480 AbstractCegarLoop]: Abstraction has has 148 places, 94 transitions, 1025 flow [2021-03-11 20:40:52,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:52,612 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:52,612 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 20:40:52,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-11 20:40:52,612 INFO L428 AbstractCegarLoop]: === Iteration 35 === [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 20:40:52,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:52,612 INFO L82 PathProgramCache]: Analyzing trace with hash 383786498, now seen corresponding path program 24 times [2021-03-11 20:40:52,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:52,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595250310] [2021-03-11 20:40:52,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:52,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:52,658 INFO L142 QuantifierPusher]: treesize reduction 20, result has 67.2 percent of original size [2021-03-11 20:40:52,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:52,678 INFO L142 QuantifierPusher]: treesize reduction 17, result has 75.7 percent of original size [2021-03-11 20:40:52,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 20:40:52,711 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-03-11 20:40:52,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:52,717 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-11 20:40:52,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:40:52,750 INFO L142 QuantifierPusher]: treesize reduction 20, result has 69.2 percent of original size [2021-03-11 20:40:52,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:52,756 INFO L142 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-03-11 20:40:52,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:52,786 INFO L142 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-03-11 20:40:52,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:52,818 INFO L142 QuantifierPusher]: treesize reduction 20, result has 73.0 percent of original size [2021-03-11 20:40:52,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-11 20:40:52,858 INFO L142 QuantifierPusher]: treesize reduction 12, result has 77.4 percent of original size [2021-03-11 20:40:52,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:52,890 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.9 percent of original size [2021-03-11 20:40:52,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 20:40:52,923 INFO L142 QuantifierPusher]: treesize reduction 27, result has 55.0 percent of original size [2021-03-11 20:40:52,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:52,941 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-11 20:40:52,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:40:52,954 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-03-11 20:40:52,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:52,955 INFO L142 QuantifierPusher]: treesize reduction 46, result has 38.7 percent of original size [2021-03-11 20:40:52,955 INFO L147 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size 26 [2021-03-11 20:40:52,984 INFO L142 QuantifierPusher]: treesize reduction 45, result has 35.7 percent of original size [2021-03-11 20:40:52,984 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-11 20:40:53,010 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 20:40:53,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:53,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:53,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:53,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:53,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:53,058 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 20:40:53,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595250310] [2021-03-11 20:40:53,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:53,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:53,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084671876] [2021-03-11 20:40:53,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:53,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:53,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:53,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:53,065 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:53,066 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 94 transitions, 1025 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:53,066 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:53,066 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:53,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:53,759 INFO L129 PetriNetUnfolder]: 77/303 cut-off events. [2021-03-11 20:40:53,759 INFO L130 PetriNetUnfolder]: For 2329/2333 co-relation queries the response was YES. [2021-03-11 20:40:53,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1762 conditions, 303 events. 77/303 cut-off events. For 2329/2333 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1725 event pairs, 23 based on Foata normal form. 5/307 useless extension candidates. Maximal degree in co-relation 1709. Up to 179 conditions per place. [2021-03-11 20:40:53,761 INFO L132 encePairwiseOnDemand]: 319/332 looper letters, 68 selfloop transitions, 22 changer transitions 22/117 dead transitions. [2021-03-11 20:40:53,761 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 117 transitions, 1505 flow [2021-03-11 20:40:53,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 20:40:53,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 20:40:53,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1930 transitions. [2021-03-11 20:40:53,763 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44717330861909177 [2021-03-11 20:40:53,763 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1930 transitions. [2021-03-11 20:40:53,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1930 transitions. [2021-03-11 20:40:53,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:53,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1930 transitions. [2021-03-11 20:40:53,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 148.46153846153845) internal successors, (1930), 13 states have internal predecessors, (1930), 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 20:40:53,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:40:53,766 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:40:53,766 INFO L185 Difference]: Start difference. First operand has 148 places, 94 transitions, 1025 flow. Second operand 13 states and 1930 transitions. [2021-03-11 20:40:53,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 117 transitions, 1505 flow [2021-03-11 20:40:53,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 117 transitions, 1445 flow, removed 16 selfloop flow, removed 11 redundant places. [2021-03-11 20:40:53,774 INFO L241 Difference]: Finished difference. Result has 148 places, 89 transitions, 984 flow [2021-03-11 20:40:53,774 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=981, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=984, PETRI_PLACES=148, PETRI_TRANSITIONS=89} [2021-03-11 20:40:53,774 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 111 predicate places. [2021-03-11 20:40:53,774 INFO L480 AbstractCegarLoop]: Abstraction has has 148 places, 89 transitions, 984 flow [2021-03-11 20:40:53,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:53,775 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:53,775 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 20:40:53,775 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-11 20:40:53,775 INFO L428 AbstractCegarLoop]: === Iteration 36 === [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 20:40:53,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:53,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1402864504, now seen corresponding path program 25 times [2021-03-11 20:40:53,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:53,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86127618] [2021-03-11 20:40:53,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:53,822 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-03-11 20:40:53,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:53,832 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-03-11 20:40:53,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:40:53,846 INFO L142 QuantifierPusher]: treesize reduction 31, result has 56.9 percent of original size [2021-03-11 20:40:53,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:53,862 INFO L142 QuantifierPusher]: treesize reduction 23, result has 62.3 percent of original size [2021-03-11 20:40:53,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:40:53,878 INFO L142 QuantifierPusher]: treesize reduction 23, result has 58.9 percent of original size [2021-03-11 20:40:53,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:53,883 INFO L142 QuantifierPusher]: treesize reduction 23, result has 54.0 percent of original size [2021-03-11 20:40:53,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:40:53,898 INFO L142 QuantifierPusher]: treesize reduction 23, result has 54.0 percent of original size [2021-03-11 20:40:53,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:40:53,915 INFO L142 QuantifierPusher]: treesize reduction 23, result has 64.6 percent of original size [2021-03-11 20:40:53,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:40:53,936 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.1 percent of original size [2021-03-11 20:40:53,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:40:53,954 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-11 20:40:53,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:40:53,973 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-03-11 20:40:53,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:53,989 INFO L142 QuantifierPusher]: treesize reduction 46, result has 38.7 percent of original size [2021-03-11 20:40:53,990 INFO L147 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size 26 [2021-03-11 20:40:54,017 INFO L142 QuantifierPusher]: treesize reduction 46, result has 37.8 percent of original size [2021-03-11 20:40:54,018 INFO L147 QuantifierPusher]: treesize reduction 3, result has 89.3 percent of original size 25 [2021-03-11 20:40:54,046 INFO L142 QuantifierPusher]: treesize reduction 19, result has 54.8 percent of original size [2021-03-11 20:40:54,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 20:40:54,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:54,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:54,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:54,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:54,095 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 20:40:54,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86127618] [2021-03-11 20:40:54,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:54,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:54,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963784858] [2021-03-11 20:40:54,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:54,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:54,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:54,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:54,097 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:54,098 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 89 transitions, 984 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:54,098 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:54,098 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:54,098 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:54,850 INFO L129 PetriNetUnfolder]: 66/274 cut-off events. [2021-03-11 20:40:54,851 INFO L130 PetriNetUnfolder]: For 2110/2116 co-relation queries the response was YES. [2021-03-11 20:40:54,852 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1587 conditions, 274 events. 66/274 cut-off events. For 2110/2116 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1519 event pairs, 23 based on Foata normal form. 2/275 useless extension candidates. Maximal degree in co-relation 1533. Up to 177 conditions per place. [2021-03-11 20:40:54,852 INFO L132 encePairwiseOnDemand]: 318/332 looper letters, 65 selfloop transitions, 20 changer transitions 19/109 dead transitions. [2021-03-11 20:40:54,852 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 109 transitions, 1437 flow [2021-03-11 20:40:54,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-11 20:40:54,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-11 20:40:54,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2215 transitions. [2021-03-11 20:40:54,854 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44477911646586343 [2021-03-11 20:40:54,854 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2215 transitions. [2021-03-11 20:40:54,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2215 transitions. [2021-03-11 20:40:54,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:54,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2215 transitions. [2021-03-11 20:40:54,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 147.66666666666666) internal successors, (2215), 15 states have internal predecessors, (2215), 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 20:40:54,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 332.0) internal successors, (5312), 16 states have internal predecessors, (5312), 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 20:40:54,859 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 332.0) internal successors, (5312), 16 states have internal predecessors, (5312), 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 20:40:54,859 INFO L185 Difference]: Start difference. First operand has 148 places, 89 transitions, 984 flow. Second operand 15 states and 2215 transitions. [2021-03-11 20:40:54,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 109 transitions, 1437 flow [2021-03-11 20:40:54,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 109 transitions, 1343 flow, removed 19 selfloop flow, removed 13 redundant places. [2021-03-11 20:40:54,866 INFO L241 Difference]: Finished difference. Result has 150 places, 86 transitions, 908 flow [2021-03-11 20:40:54,866 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=914, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=908, PETRI_PLACES=150, PETRI_TRANSITIONS=86} [2021-03-11 20:40:54,866 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 113 predicate places. [2021-03-11 20:40:54,866 INFO L480 AbstractCegarLoop]: Abstraction has has 150 places, 86 transitions, 908 flow [2021-03-11 20:40:54,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:54,866 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:54,866 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 20:40:54,867 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-11 20:40:54,867 INFO L428 AbstractCegarLoop]: === Iteration 37 === [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 20:40:54,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:54,867 INFO L82 PathProgramCache]: Analyzing trace with hash 944266128, now seen corresponding path program 26 times [2021-03-11 20:40:54,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:54,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733688004] [2021-03-11 20:40:54,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:54,911 INFO L142 QuantifierPusher]: treesize reduction 10, result has 76.2 percent of original size [2021-03-11 20:40:54,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:40:54,920 INFO L142 QuantifierPusher]: treesize reduction 7, result has 85.4 percent of original size [2021-03-11 20:40:54,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:54,935 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-11 20:40:54,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:54,950 INFO L142 QuantifierPusher]: treesize reduction 10, result has 79.2 percent of original size [2021-03-11 20:40:54,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:40:54,984 INFO L142 QuantifierPusher]: treesize reduction 10, result has 76.7 percent of original size [2021-03-11 20:40:54,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:54,990 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-03-11 20:40:54,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:40:55,006 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-03-11 20:40:55,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:40:55,023 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.8 percent of original size [2021-03-11 20:40:55,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:40:55,045 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.1 percent of original size [2021-03-11 20:40:55,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:40:55,063 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.0 percent of original size [2021-03-11 20:40:55,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 20:40:55,082 INFO L142 QuantifierPusher]: treesize reduction 18, result has 62.5 percent of original size [2021-03-11 20:40:55,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 20:40:55,093 INFO L142 QuantifierPusher]: treesize reduction 45, result has 36.6 percent of original size [2021-03-11 20:40:55,094 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.5 percent of original size 23 [2021-03-11 20:40:55,119 INFO L142 QuantifierPusher]: treesize reduction 18, result has 53.8 percent of original size [2021-03-11 20:40:55,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 20:40:55,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:55,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 20:40:55,151 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:55,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:55,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:55,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:55,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:55,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:55,168 INFO L142 QuantifierPusher]: treesize reduction 9, result has 69.0 percent of original size [2021-03-11 20:40:55,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:55,185 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 20:40:55,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733688004] [2021-03-11 20:40:55,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:55,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:55,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542095960] [2021-03-11 20:40:55,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:55,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:55,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:55,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:55,187 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:55,188 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 86 transitions, 908 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:55,188 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:55,188 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:55,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:55,896 INFO L129 PetriNetUnfolder]: 56/243 cut-off events. [2021-03-11 20:40:55,896 INFO L130 PetriNetUnfolder]: For 1620/1626 co-relation queries the response was YES. [2021-03-11 20:40:55,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1387 conditions, 243 events. 56/243 cut-off events. For 1620/1626 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1282 event pairs, 24 based on Foata normal form. 2/244 useless extension candidates. Maximal degree in co-relation 1333. Up to 170 conditions per place. [2021-03-11 20:40:55,897 INFO L132 encePairwiseOnDemand]: 316/332 looper letters, 55 selfloop transitions, 8 changer transitions 25/93 dead transitions. [2021-03-11 20:40:55,897 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 93 transitions, 1171 flow [2021-03-11 20:40:55,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-03-11 20:40:55,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-03-11 20:40:55,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2351 transitions. [2021-03-11 20:40:55,899 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4425828313253012 [2021-03-11 20:40:55,899 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2351 transitions. [2021-03-11 20:40:55,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2351 transitions. [2021-03-11 20:40:55,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:55,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2351 transitions. [2021-03-11 20:40:55,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 146.9375) internal successors, (2351), 16 states have internal predecessors, (2351), 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 20:40:55,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 332.0) internal successors, (5644), 17 states have internal predecessors, (5644), 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 20:40:55,903 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 332.0) internal successors, (5644), 17 states have internal predecessors, (5644), 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 20:40:55,903 INFO L185 Difference]: Start difference. First operand has 150 places, 86 transitions, 908 flow. Second operand 16 states and 2351 transitions. [2021-03-11 20:40:55,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 93 transitions, 1171 flow [2021-03-11 20:40:55,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 93 transitions, 1104 flow, removed 13 selfloop flow, removed 14 redundant places. [2021-03-11 20:40:55,909 INFO L241 Difference]: Finished difference. Result has 148 places, 66 transitions, 669 flow [2021-03-11 20:40:55,909 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=841, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=669, PETRI_PLACES=148, PETRI_TRANSITIONS=66} [2021-03-11 20:40:55,909 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 111 predicate places. [2021-03-11 20:40:55,909 INFO L480 AbstractCegarLoop]: Abstraction has has 148 places, 66 transitions, 669 flow [2021-03-11 20:40:55,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:55,909 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:55,910 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 20:40:55,910 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-11 20:40:55,910 INFO L428 AbstractCegarLoop]: === Iteration 38 === [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 20:40:55,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:55,910 INFO L82 PathProgramCache]: Analyzing trace with hash -845990787, now seen corresponding path program 7 times [2021-03-11 20:40:55,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:55,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086860551] [2021-03-11 20:40:55,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:55,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:55,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:55,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:55,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:55,956 INFO L142 QuantifierPusher]: treesize reduction 4, result has 75.0 percent of original size [2021-03-11 20:40:55,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-11 20:40:55,962 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-03-11 20:40:55,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-11 20:40:55,969 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-03-11 20:40:55,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:55,979 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-11 20:40:55,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:40:55,996 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-03-11 20:40:55,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:55,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:55,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:56,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:56,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:56,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:56,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:56,015 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 20:40:56,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086860551] [2021-03-11 20:40:56,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:56,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-11 20:40:56,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449745139] [2021-03-11 20:40:56,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-11 20:40:56,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:56,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-11 20:40:56,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-03-11 20:40:56,017 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 332 [2021-03-11 20:40:56,018 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 66 transitions, 669 flow. Second operand has 9 states, 9 states have (on average 159.88888888888889) internal successors, (1439), 9 states have internal predecessors, (1439), 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 20:40:56,018 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:56,018 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 332 [2021-03-11 20:40:56,018 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:56,233 INFO L129 PetriNetUnfolder]: 42/197 cut-off events. [2021-03-11 20:40:56,233 INFO L130 PetriNetUnfolder]: For 1173/1174 co-relation queries the response was YES. [2021-03-11 20:40:56,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1051 conditions, 197 events. 42/197 cut-off events. For 1173/1174 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1015 event pairs, 16 based on Foata normal form. 2/198 useless extension candidates. Maximal degree in co-relation 1001. Up to 99 conditions per place. [2021-03-11 20:40:56,234 INFO L132 encePairwiseOnDemand]: 324/332 looper letters, 35 selfloop transitions, 23 changer transitions 6/75 dead transitions. [2021-03-11 20:40:56,234 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 75 transitions, 856 flow [2021-03-11 20:40:56,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-11 20:40:56,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-11 20:40:56,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1298 transitions. [2021-03-11 20:40:56,251 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.48870481927710846 [2021-03-11 20:40:56,251 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1298 transitions. [2021-03-11 20:40:56,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1298 transitions. [2021-03-11 20:40:56,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:56,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1298 transitions. [2021-03-11 20:40:56,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 162.25) internal successors, (1298), 8 states have internal predecessors, (1298), 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 20:40:56,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 332.0) internal successors, (2988), 9 states have internal predecessors, (2988), 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 20:40:56,253 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 332.0) internal successors, (2988), 9 states have internal predecessors, (2988), 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 20:40:56,253 INFO L185 Difference]: Start difference. First operand has 148 places, 66 transitions, 669 flow. Second operand 8 states and 1298 transitions. [2021-03-11 20:40:56,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 75 transitions, 856 flow [2021-03-11 20:40:56,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 75 transitions, 770 flow, removed 12 selfloop flow, removed 21 redundant places. [2021-03-11 20:40:56,257 INFO L241 Difference]: Finished difference. Result has 107 places, 61 transitions, 592 flow [2021-03-11 20:40:56,257 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=579, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=592, PETRI_PLACES=107, PETRI_TRANSITIONS=61} [2021-03-11 20:40:56,257 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 70 predicate places. [2021-03-11 20:40:56,257 INFO L480 AbstractCegarLoop]: Abstraction has has 107 places, 61 transitions, 592 flow [2021-03-11 20:40:56,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 159.88888888888889) internal successors, (1439), 9 states have internal predecessors, (1439), 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 20:40:56,258 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:56,258 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 20:40:56,258 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-11 20:40:56,258 INFO L428 AbstractCegarLoop]: === Iteration 39 === [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 20:40:56,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:56,258 INFO L82 PathProgramCache]: Analyzing trace with hash 875264446, now seen corresponding path program 27 times [2021-03-11 20:40:56,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:56,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890406044] [2021-03-11 20:40:56,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:56,302 INFO L142 QuantifierPusher]: treesize reduction 10, result has 76.2 percent of original size [2021-03-11 20:40:56,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:40:56,312 INFO L142 QuantifierPusher]: treesize reduction 7, result has 85.4 percent of original size [2021-03-11 20:40:56,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:56,326 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size [2021-03-11 20:40:56,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:56,342 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size [2021-03-11 20:40:56,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:56,360 INFO L142 QuantifierPusher]: treesize reduction 30, result has 56.5 percent of original size [2021-03-11 20:40:56,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:56,378 INFO L142 QuantifierPusher]: treesize reduction 30, result has 53.1 percent of original size [2021-03-11 20:40:56,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 20:40:56,385 INFO L142 QuantifierPusher]: treesize reduction 30, result has 48.3 percent of original size [2021-03-11 20:40:56,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 20:40:56,402 INFO L142 QuantifierPusher]: treesize reduction 28, result has 60.6 percent of original size [2021-03-11 20:40:56,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:40:56,423 INFO L142 QuantifierPusher]: treesize reduction 8, result has 80.0 percent of original size [2021-03-11 20:40:56,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:40:56,440 INFO L142 QuantifierPusher]: treesize reduction 4, result has 90.9 percent of original size [2021-03-11 20:40:56,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 20:40:56,460 INFO L142 QuantifierPusher]: treesize reduction 4, result has 88.2 percent of original size [2021-03-11 20:40:56,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 20:40:56,472 INFO L142 QuantifierPusher]: treesize reduction 34, result has 40.4 percent of original size [2021-03-11 20:40:56,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 20:40:56,497 INFO L142 QuantifierPusher]: treesize reduction 4, result has 84.0 percent of original size [2021-03-11 20:40:56,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 20:40:56,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:56,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 20:40:56,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:56,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:56,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:56,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:56,543 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:56,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:56,557 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 20:40:56,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890406044] [2021-03-11 20:40:56,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:56,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:56,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64795701] [2021-03-11 20:40:56,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:56,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:56,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:56,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:56,559 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:56,560 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 61 transitions, 592 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:56,560 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:56,560 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:56,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:57,223 INFO L129 PetriNetUnfolder]: 48/195 cut-off events. [2021-03-11 20:40:57,223 INFO L130 PetriNetUnfolder]: For 1035/1044 co-relation queries the response was YES. [2021-03-11 20:40:57,223 INFO L84 FinitePrefix]: Finished finitePrefix Result has 985 conditions, 195 events. 48/195 cut-off events. For 1035/1044 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 960 event pairs, 18 based on Foata normal form. 2/197 useless extension candidates. Maximal degree in co-relation 944. Up to 133 conditions per place. [2021-03-11 20:40:57,224 INFO L132 encePairwiseOnDemand]: 317/332 looper letters, 45 selfloop transitions, 16 changer transitions 8/74 dead transitions. [2021-03-11 20:40:57,224 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 74 transitions, 813 flow [2021-03-11 20:40:57,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 20:40:57,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-11 20:40:57,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2061 transitions. [2021-03-11 20:40:57,225 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44341652323580033 [2021-03-11 20:40:57,225 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2061 transitions. [2021-03-11 20:40:57,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2061 transitions. [2021-03-11 20:40:57,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:57,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2061 transitions. [2021-03-11 20:40:57,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 147.21428571428572) internal successors, (2061), 14 states have internal predecessors, (2061), 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 20:40:57,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:40:57,229 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:40:57,229 INFO L185 Difference]: Start difference. First operand has 107 places, 61 transitions, 592 flow. Second operand 14 states and 2061 transitions. [2021-03-11 20:40:57,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 74 transitions, 813 flow [2021-03-11 20:40:57,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 74 transitions, 763 flow, removed 6 selfloop flow, removed 10 redundant places. [2021-03-11 20:40:57,232 INFO L241 Difference]: Finished difference. Result has 109 places, 63 transitions, 588 flow [2021-03-11 20:40:57,232 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=543, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=588, PETRI_PLACES=109, PETRI_TRANSITIONS=63} [2021-03-11 20:40:57,232 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 72 predicate places. [2021-03-11 20:40:57,232 INFO L480 AbstractCegarLoop]: Abstraction has has 109 places, 63 transitions, 588 flow [2021-03-11 20:40:57,233 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:57,233 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:57,233 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 20:40:57,233 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-11 20:40:57,233 INFO L428 AbstractCegarLoop]: === Iteration 40 === [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 20:40:57,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:57,233 INFO L82 PathProgramCache]: Analyzing trace with hash -656569638, now seen corresponding path program 28 times [2021-03-11 20:40:57,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:57,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843062325] [2021-03-11 20:40:57,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:57,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:57,283 INFO L142 QuantifierPusher]: treesize reduction 20, result has 67.2 percent of original size [2021-03-11 20:40:57,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:57,302 INFO L142 QuantifierPusher]: treesize reduction 17, result has 75.7 percent of original size [2021-03-11 20:40:57,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 20:40:57,336 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-03-11 20:40:57,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:57,341 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-03-11 20:40:57,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:57,373 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-11 20:40:57,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:40:57,408 INFO L142 QuantifierPusher]: treesize reduction 20, result has 69.2 percent of original size [2021-03-11 20:40:57,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:57,415 INFO L142 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-03-11 20:40:57,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:57,447 INFO L142 QuantifierPusher]: treesize reduction 13, result has 72.9 percent of original size [2021-03-11 20:40:57,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 20:40:57,477 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.4 percent of original size [2021-03-11 20:40:57,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:40:57,514 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.9 percent of original size [2021-03-11 20:40:57,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 20:40:57,548 INFO L142 QuantifierPusher]: treesize reduction 27, result has 55.0 percent of original size [2021-03-11 20:40:57,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:57,566 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-11 20:40:57,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:40:57,578 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-03-11 20:40:57,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:57,579 INFO L142 QuantifierPusher]: treesize reduction 46, result has 38.7 percent of original size [2021-03-11 20:40:57,580 INFO L147 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size 26 [2021-03-11 20:40:57,607 INFO L142 QuantifierPusher]: treesize reduction 45, result has 35.7 percent of original size [2021-03-11 20:40:57,607 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-11 20:40:57,632 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 20:40:57,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:57,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:57,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:57,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:57,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:57,679 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 20:40:57,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843062325] [2021-03-11 20:40:57,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:57,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:57,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173277696] [2021-03-11 20:40:57,679 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:57,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:57,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:57,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:57,680 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:57,681 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 63 transitions, 588 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:57,681 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:57,681 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:57,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:58,382 INFO L129 PetriNetUnfolder]: 57/222 cut-off events. [2021-03-11 20:40:58,382 INFO L130 PetriNetUnfolder]: For 987/993 co-relation queries the response was YES. [2021-03-11 20:40:58,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1110 conditions, 222 events. 57/222 cut-off events. For 987/993 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1145 event pairs, 19 based on Foata normal form. 2/224 useless extension candidates. Maximal degree in co-relation 1072. Up to 143 conditions per place. [2021-03-11 20:40:58,383 INFO L132 encePairwiseOnDemand]: 319/332 looper letters, 52 selfloop transitions, 7 changer transitions 23/87 dead transitions. [2021-03-11 20:40:58,383 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 87 transitions, 964 flow [2021-03-11 20:40:58,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 20:40:58,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 20:40:58,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1918 transitions. [2021-03-11 20:40:58,384 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44439295644114923 [2021-03-11 20:40:58,384 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1918 transitions. [2021-03-11 20:40:58,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1918 transitions. [2021-03-11 20:40:58,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:58,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1918 transitions. [2021-03-11 20:40:58,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 147.53846153846155) internal successors, (1918), 13 states have internal predecessors, (1918), 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 20:40:58,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:40:58,387 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:40:58,387 INFO L185 Difference]: Start difference. First operand has 109 places, 63 transitions, 588 flow. Second operand 13 states and 1918 transitions. [2021-03-11 20:40:58,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 87 transitions, 964 flow [2021-03-11 20:40:58,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 87 transitions, 926 flow, removed 7 selfloop flow, removed 10 redundant places. [2021-03-11 20:40:58,391 INFO L241 Difference]: Finished difference. Result has 116 places, 63 transitions, 583 flow [2021-03-11 20:40:58,391 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=551, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=583, PETRI_PLACES=116, PETRI_TRANSITIONS=63} [2021-03-11 20:40:58,391 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 79 predicate places. [2021-03-11 20:40:58,391 INFO L480 AbstractCegarLoop]: Abstraction has has 116 places, 63 transitions, 583 flow [2021-03-11 20:40:58,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:58,391 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:58,391 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 20:40:58,391 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-11 20:40:58,392 INFO L428 AbstractCegarLoop]: === Iteration 41 === [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 20:40:58,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:58,392 INFO L82 PathProgramCache]: Analyzing trace with hash -115301508, now seen corresponding path program 29 times [2021-03-11 20:40:58,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:58,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347767683] [2021-03-11 20:40:58,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:58,434 INFO L142 QuantifierPusher]: treesize reduction 10, result has 76.2 percent of original size [2021-03-11 20:40:58,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:40:58,443 INFO L142 QuantifierPusher]: treesize reduction 7, result has 85.4 percent of original size [2021-03-11 20:40:58,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:58,457 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size [2021-03-11 20:40:58,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:58,470 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size [2021-03-11 20:40:58,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:58,488 INFO L142 QuantifierPusher]: treesize reduction 30, result has 56.5 percent of original size [2021-03-11 20:40:58,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:58,506 INFO L142 QuantifierPusher]: treesize reduction 30, result has 53.1 percent of original size [2021-03-11 20:40:58,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 20:40:58,513 INFO L142 QuantifierPusher]: treesize reduction 30, result has 48.3 percent of original size [2021-03-11 20:40:58,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-11 20:40:58,528 INFO L142 QuantifierPusher]: treesize reduction 28, result has 60.6 percent of original size [2021-03-11 20:40:58,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:40:58,547 INFO L142 QuantifierPusher]: treesize reduction 8, result has 80.0 percent of original size [2021-03-11 20:40:58,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:40:58,563 INFO L142 QuantifierPusher]: treesize reduction 4, result has 90.9 percent of original size [2021-03-11 20:40:58,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 20:40:58,581 INFO L142 QuantifierPusher]: treesize reduction 4, result has 88.2 percent of original size [2021-03-11 20:40:58,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 20:40:58,592 INFO L142 QuantifierPusher]: treesize reduction 34, result has 40.4 percent of original size [2021-03-11 20:40:58,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 20:40:58,616 INFO L142 QuantifierPusher]: treesize reduction 34, result has 39.3 percent of original size [2021-03-11 20:40:58,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-11 20:40:58,640 INFO L142 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-03-11 20:40:58,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:58,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:58,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:58,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:58,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:58,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:58,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:58,702 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 20:40:58,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347767683] [2021-03-11 20:40:58,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:58,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:58,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581835898] [2021-03-11 20:40:58,703 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:58,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:58,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:58,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:58,704 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:58,705 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 63 transitions, 583 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:58,705 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:58,705 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:58,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:40:59,350 INFO L129 PetriNetUnfolder]: 43/172 cut-off events. [2021-03-11 20:40:59,350 INFO L130 PetriNetUnfolder]: For 861/867 co-relation queries the response was YES. [2021-03-11 20:40:59,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 908 conditions, 172 events. 43/172 cut-off events. For 861/867 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 784 event pairs, 18 based on Foata normal form. 2/174 useless extension candidates. Maximal degree in co-relation 865. Up to 119 conditions per place. [2021-03-11 20:40:59,351 INFO L132 encePairwiseOnDemand]: 319/332 looper letters, 38 selfloop transitions, 5 changer transitions 19/67 dead transitions. [2021-03-11 20:40:59,352 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 67 transitions, 728 flow [2021-03-11 20:40:59,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 20:40:59,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 20:40:59,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1910 transitions. [2021-03-11 20:40:59,353 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4425393883225209 [2021-03-11 20:40:59,353 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1910 transitions. [2021-03-11 20:40:59,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1910 transitions. [2021-03-11 20:40:59,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:40:59,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1910 transitions. [2021-03-11 20:40:59,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 146.92307692307693) internal successors, (1910), 13 states have internal predecessors, (1910), 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 20:40:59,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:40:59,356 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:40:59,356 INFO L185 Difference]: Start difference. First operand has 116 places, 63 transitions, 583 flow. Second operand 13 states and 1910 transitions. [2021-03-11 20:40:59,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 67 transitions, 728 flow [2021-03-11 20:40:59,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 67 transitions, 700 flow, removed 7 selfloop flow, removed 11 redundant places. [2021-03-11 20:40:59,359 INFO L241 Difference]: Finished difference. Result has 111 places, 48 transitions, 444 flow [2021-03-11 20:40:59,359 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=444, PETRI_PLACES=111, PETRI_TRANSITIONS=48} [2021-03-11 20:40:59,359 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 74 predicate places. [2021-03-11 20:40:59,359 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 48 transitions, 444 flow [2021-03-11 20:40:59,359 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:59,359 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:40:59,360 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 20:40:59,360 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-11 20:40:59,360 INFO L428 AbstractCegarLoop]: === Iteration 42 === [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 20:40:59,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:40:59,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1771890702, now seen corresponding path program 30 times [2021-03-11 20:40:59,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:40:59,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307122741] [2021-03-11 20:40:59,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:40:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:40:59,406 INFO L142 QuantifierPusher]: treesize reduction 20, result has 67.2 percent of original size [2021-03-11 20:40:59,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:40:59,426 INFO L142 QuantifierPusher]: treesize reduction 17, result has 75.7 percent of original size [2021-03-11 20:40:59,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 20:40:59,459 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-03-11 20:40:59,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:59,463 INFO L142 QuantifierPusher]: treesize reduction 17, result has 72.6 percent of original size [2021-03-11 20:40:59,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:59,495 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-11 20:40:59,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:40:59,527 INFO L142 QuantifierPusher]: treesize reduction 20, result has 69.2 percent of original size [2021-03-11 20:40:59,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 20:40:59,534 INFO L142 QuantifierPusher]: treesize reduction 20, result has 66.1 percent of original size [2021-03-11 20:40:59,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:40:59,565 INFO L142 QuantifierPusher]: treesize reduction 20, result has 73.0 percent of original size [2021-03-11 20:40:59,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-11 20:40:59,602 INFO L142 QuantifierPusher]: treesize reduction 13, result has 79.4 percent of original size [2021-03-11 20:40:59,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-11 20:40:59,640 INFO L142 QuantifierPusher]: treesize reduction 5, result has 88.9 percent of original size [2021-03-11 20:40:59,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 20:40:59,672 INFO L142 QuantifierPusher]: treesize reduction 27, result has 55.0 percent of original size [2021-03-11 20:40:59,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:59,694 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-11 20:40:59,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:40:59,707 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-03-11 20:40:59,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:40:59,708 INFO L142 QuantifierPusher]: treesize reduction 46, result has 38.7 percent of original size [2021-03-11 20:40:59,708 INFO L147 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size 26 [2021-03-11 20:40:59,735 INFO L142 QuantifierPusher]: treesize reduction 45, result has 35.7 percent of original size [2021-03-11 20:40:59,736 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-11 20:40:59,761 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 20:40:59,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:40:59,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:59,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:40:59,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:40:59,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:40:59,807 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 20:40:59,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307122741] [2021-03-11 20:40:59,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:40:59,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:40:59,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221087606] [2021-03-11 20:40:59,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:40:59,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:40:59,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:40:59,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:40:59,809 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:40:59,810 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 48 transitions, 444 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:40:59,810 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:40:59,810 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:40:59,810 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:41:00,509 INFO L129 PetriNetUnfolder]: 50/183 cut-off events. [2021-03-11 20:41:00,509 INFO L130 PetriNetUnfolder]: For 823/829 co-relation queries the response was YES. [2021-03-11 20:41:00,510 INFO L84 FinitePrefix]: Finished finitePrefix Result has 932 conditions, 183 events. 50/183 cut-off events. For 823/829 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 861 event pairs, 10 based on Foata normal form. 2/185 useless extension candidates. Maximal degree in co-relation 894. Up to 90 conditions per place. [2021-03-11 20:41:00,510 INFO L132 encePairwiseOnDemand]: 319/332 looper letters, 28 selfloop transitions, 18 changer transitions 21/72 dead transitions. [2021-03-11 20:41:00,510 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 72 transitions, 784 flow [2021-03-11 20:41:00,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 20:41:00,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 20:41:00,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1917 transitions. [2021-03-11 20:41:00,512 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44416126042632065 [2021-03-11 20:41:00,512 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1917 transitions. [2021-03-11 20:41:00,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1917 transitions. [2021-03-11 20:41:00,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:41:00,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1917 transitions. [2021-03-11 20:41:00,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 147.46153846153845) internal successors, (1917), 13 states have internal predecessors, (1917), 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 20:41:00,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:41:00,515 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:41:00,515 INFO L185 Difference]: Start difference. First operand has 111 places, 48 transitions, 444 flow. Second operand 13 states and 1917 transitions. [2021-03-11 20:41:00,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 72 transitions, 784 flow [2021-03-11 20:41:00,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 72 transitions, 722 flow, removed 14 selfloop flow, removed 12 redundant places. [2021-03-11 20:41:00,518 INFO L241 Difference]: Finished difference. Result has 97 places, 48 transitions, 458 flow [2021-03-11 20:41:00,518 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=458, PETRI_PLACES=97, PETRI_TRANSITIONS=48} [2021-03-11 20:41:00,518 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 60 predicate places. [2021-03-11 20:41:00,518 INFO L480 AbstractCegarLoop]: Abstraction has has 97 places, 48 transitions, 458 flow [2021-03-11 20:41:00,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:41:00,518 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:41:00,518 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 20:41:00,518 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-11 20:41:00,518 INFO L428 AbstractCegarLoop]: === Iteration 43 === [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 20:41:00,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:41:00,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1717768058, now seen corresponding path program 31 times [2021-03-11 20:41:00,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:41:00,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728378317] [2021-03-11 20:41:00,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:41:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:41:00,559 INFO L142 QuantifierPusher]: treesize reduction 10, result has 76.2 percent of original size [2021-03-11 20:41:00,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:41:00,569 INFO L142 QuantifierPusher]: treesize reduction 7, result has 85.4 percent of original size [2021-03-11 20:41:00,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:41:00,584 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size [2021-03-11 20:41:00,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:41:00,599 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size [2021-03-11 20:41:00,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:41:00,617 INFO L142 QuantifierPusher]: treesize reduction 10, result has 79.2 percent of original size [2021-03-11 20:41:00,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:41:00,634 INFO L142 QuantifierPusher]: treesize reduction 10, result has 76.7 percent of original size [2021-03-11 20:41:00,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:41:00,642 INFO L142 QuantifierPusher]: treesize reduction 10, result has 76.2 percent of original size [2021-03-11 20:41:00,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:41:00,659 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-11 20:41:00,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-11 20:41:00,678 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.4 percent of original size [2021-03-11 20:41:00,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:41:00,702 INFO L142 QuantifierPusher]: treesize reduction 2, result has 93.9 percent of original size [2021-03-11 20:41:00,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-11 20:41:00,722 INFO L142 QuantifierPusher]: treesize reduction 18, result has 68.4 percent of original size [2021-03-11 20:41:00,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-11 20:41:00,743 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 20:41:00,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 20:41:00,756 INFO L142 QuantifierPusher]: treesize reduction 45, result has 35.7 percent of original size [2021-03-11 20:41:00,756 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-11 20:41:00,783 INFO L142 QuantifierPusher]: treesize reduction 18, result has 52.6 percent of original size [2021-03-11 20:41:00,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:41:00,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:41:00,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:41:00,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:41:00,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:41:00,831 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 20:41:00,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728378317] [2021-03-11 20:41:00,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:41:00,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:41:00,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813350689] [2021-03-11 20:41:00,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:41:00,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:41:00,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:41:00,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:41:00,833 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:41:00,834 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 48 transitions, 458 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:41:00,834 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:41:00,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:41:00,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:41:01,507 INFO L129 PetriNetUnfolder]: 35/133 cut-off events. [2021-03-11 20:41:01,507 INFO L130 PetriNetUnfolder]: For 706/713 co-relation queries the response was YES. [2021-03-11 20:41:01,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 703 conditions, 133 events. 35/133 cut-off events. For 706/713 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 533 event pairs, 4 based on Foata normal form. 8/141 useless extension candidates. Maximal degree in co-relation 665. Up to 30 conditions per place. [2021-03-11 20:41:01,508 INFO L132 encePairwiseOnDemand]: 320/332 looper letters, 18 selfloop transitions, 5 changer transitions 37/65 dead transitions. [2021-03-11 20:41:01,508 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 65 transitions, 684 flow [2021-03-11 20:41:01,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-11 20:41:01,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-11 20:41:01,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1913 transitions. [2021-03-11 20:41:01,509 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.44323447636700647 [2021-03-11 20:41:01,509 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1913 transitions. [2021-03-11 20:41:01,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1913 transitions. [2021-03-11 20:41:01,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:41:01,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1913 transitions. [2021-03-11 20:41:01,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 147.15384615384616) internal successors, (1913), 13 states have internal predecessors, (1913), 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 20:41:01,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:41:01,512 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 332.0) internal successors, (4648), 14 states have internal predecessors, (4648), 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 20:41:01,512 INFO L185 Difference]: Start difference. First operand has 97 places, 48 transitions, 458 flow. Second operand 13 states and 1913 transitions. [2021-03-11 20:41:01,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 65 transitions, 684 flow [2021-03-11 20:41:01,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 65 transitions, 606 flow, removed 7 selfloop flow, removed 14 redundant places. [2021-03-11 20:41:01,514 INFO L241 Difference]: Finished difference. Result has 92 places, 28 transitions, 203 flow [2021-03-11 20:41:01,515 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=203, PETRI_PLACES=92, PETRI_TRANSITIONS=28} [2021-03-11 20:41:01,515 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 55 predicate places. [2021-03-11 20:41:01,515 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 28 transitions, 203 flow [2021-03-11 20:41:01,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:41:01,515 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:41:01,515 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 20:41:01,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-11 20:41:01,515 INFO L428 AbstractCegarLoop]: === Iteration 44 === [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 20:41:01,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:41:01,515 INFO L82 PathProgramCache]: Analyzing trace with hash -909515462, now seen corresponding path program 32 times [2021-03-11 20:41:01,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:41:01,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487394512] [2021-03-11 20:41:01,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:41:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:41:01,560 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-03-11 20:41:01,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:41:01,570 INFO L142 QuantifierPusher]: treesize reduction 2, result has 95.5 percent of original size [2021-03-11 20:41:01,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:41:01,585 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.4 percent of original size [2021-03-11 20:41:01,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 20:41:01,600 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.4 percent of original size [2021-03-11 20:41:01,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-11 20:41:01,617 INFO L142 QuantifierPusher]: treesize reduction 23, result has 62.3 percent of original size [2021-03-11 20:41:01,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:41:01,635 INFO L142 QuantifierPusher]: treesize reduction 23, result has 58.9 percent of original size [2021-03-11 20:41:01,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:41:01,643 INFO L142 QuantifierPusher]: treesize reduction 23, result has 54.0 percent of original size [2021-03-11 20:41:01,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:41:01,660 INFO L142 QuantifierPusher]: treesize reduction 23, result has 64.6 percent of original size [2021-03-11 20:41:01,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:41:01,683 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.1 percent of original size [2021-03-11 20:41:01,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:41:01,702 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-11 20:41:01,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 20:41:01,723 INFO L142 QuantifierPusher]: treesize reduction 19, result has 63.5 percent of original size [2021-03-11 20:41:01,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:41:01,735 INFO L142 QuantifierPusher]: treesize reduction 46, result has 38.7 percent of original size [2021-03-11 20:41:01,735 INFO L147 QuantifierPusher]: treesize reduction 3, result has 89.7 percent of original size 26 [2021-03-11 20:41:01,764 INFO L142 QuantifierPusher]: treesize reduction 46, result has 37.8 percent of original size [2021-03-11 20:41:01,764 INFO L147 QuantifierPusher]: treesize reduction 3, result has 89.3 percent of original size 25 [2021-03-11 20:41:01,794 INFO L142 QuantifierPusher]: treesize reduction 19, result has 54.8 percent of original size [2021-03-11 20:41:01,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-11 20:41:01,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:41:01,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:41:01,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:41:01,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-11 20:41:01,846 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 20:41:01,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487394512] [2021-03-11 20:41:01,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:41:01,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:41:01,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214322386] [2021-03-11 20:41:01,847 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:41:01,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:41:01,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:41:01,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:41:01,849 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:41:01,849 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 28 transitions, 203 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:41:01,849 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:41:01,849 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:41:01,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:41:02,500 INFO L129 PetriNetUnfolder]: 7/51 cut-off events. [2021-03-11 20:41:02,500 INFO L130 PetriNetUnfolder]: For 177/177 co-relation queries the response was YES. [2021-03-11 20:41:02,500 INFO L84 FinitePrefix]: Finished finitePrefix Result has 255 conditions, 51 events. 7/51 cut-off events. For 177/177 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 99 event pairs, 0 based on Foata normal form. 1/52 useless extension candidates. Maximal degree in co-relation 219. Up to 14 conditions per place. [2021-03-11 20:41:02,500 INFO L132 encePairwiseOnDemand]: 319/332 looper letters, 8 selfloop transitions, 11 changer transitions 14/38 dead transitions. [2021-03-11 20:41:02,500 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 38 transitions, 350 flow [2021-03-11 20:41:02,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-11 20:41:02,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-11 20:41:02,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2193 transitions. [2021-03-11 20:41:02,502 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.4403614457831325 [2021-03-11 20:41:02,502 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2193 transitions. [2021-03-11 20:41:02,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2193 transitions. [2021-03-11 20:41:02,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:41:02,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2193 transitions. [2021-03-11 20:41:02,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 146.2) internal successors, (2193), 15 states have internal predecessors, (2193), 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 20:41:02,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 332.0) internal successors, (5312), 16 states have internal predecessors, (5312), 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 20:41:02,506 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 332.0) internal successors, (5312), 16 states have internal predecessors, (5312), 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 20:41:02,506 INFO L185 Difference]: Start difference. First operand has 92 places, 28 transitions, 203 flow. Second operand 15 states and 2193 transitions. [2021-03-11 20:41:02,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 38 transitions, 350 flow [2021-03-11 20:41:02,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 38 transitions, 212 flow, removed 29 selfloop flow, removed 29 redundant places. [2021-03-11 20:41:02,507 INFO L241 Difference]: Finished difference. Result has 68 places, 24 transitions, 113 flow [2021-03-11 20:41:02,507 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=113, PETRI_PLACES=68, PETRI_TRANSITIONS=24} [2021-03-11 20:41:02,507 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 31 predicate places. [2021-03-11 20:41:02,507 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 24 transitions, 113 flow [2021-03-11 20:41:02,507 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:41:02,507 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 20:41:02,507 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 20:41:02,507 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-11 20:41:02,508 INFO L428 AbstractCegarLoop]: === Iteration 45 === [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 20:41:02,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 20:41:02,508 INFO L82 PathProgramCache]: Analyzing trace with hash -328627686, now seen corresponding path program 33 times [2021-03-11 20:41:02,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 20:41:02,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797630150] [2021-03-11 20:41:02,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 20:41:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 20:41:02,549 INFO L142 QuantifierPusher]: treesize reduction 10, result has 76.2 percent of original size [2021-03-11 20:41:02,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:41:02,558 INFO L142 QuantifierPusher]: treesize reduction 7, result has 85.4 percent of original size [2021-03-11 20:41:02,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-11 20:41:02,573 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size [2021-03-11 20:41:02,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:41:02,588 INFO L142 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size [2021-03-11 20:41:02,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:41:02,602 INFO L142 QuantifierPusher]: treesize reduction 10, result has 79.2 percent of original size [2021-03-11 20:41:02,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-11 20:41:02,618 INFO L142 QuantifierPusher]: treesize reduction 10, result has 76.7 percent of original size [2021-03-11 20:41:02,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-11 20:41:02,625 INFO L142 QuantifierPusher]: treesize reduction 10, result has 73.0 percent of original size [2021-03-11 20:41:02,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 20:41:02,641 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.8 percent of original size [2021-03-11 20:41:02,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-11 20:41:02,665 INFO L142 QuantifierPusher]: treesize reduction 2, result has 94.1 percent of original size [2021-03-11 20:41:02,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-11 20:41:02,683 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.0 percent of original size [2021-03-11 20:41:02,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-11 20:41:02,701 INFO L142 QuantifierPusher]: treesize reduction 18, result has 62.5 percent of original size [2021-03-11 20:41:02,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-11 20:41:02,712 INFO L142 QuantifierPusher]: treesize reduction 45, result has 36.6 percent of original size [2021-03-11 20:41:02,712 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.5 percent of original size 23 [2021-03-11 20:41:02,736 INFO L142 QuantifierPusher]: treesize reduction 18, result has 53.8 percent of original size [2021-03-11 20:41:02,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 20:41:02,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:41:02,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 20:41:02,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:41:02,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:41:02,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:41:02,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:41:02,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 20:41:02,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-11 20:41:02,782 INFO L142 QuantifierPusher]: treesize reduction 9, result has 69.0 percent of original size [2021-03-11 20:41:02,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-11 20:41:02,799 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 20:41:02,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797630150] [2021-03-11 20:41:02,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 20:41:02,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 20:41:02,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271470992] [2021-03-11 20:41:02,799 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-11 20:41:02,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 20:41:02,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-11 20:41:02,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-03-11 20:41:02,801 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 332 [2021-03-11 20:41:02,801 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 24 transitions, 113 flow. Second operand has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:41:02,801 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 20:41:02,802 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 332 [2021-03-11 20:41:02,802 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 20:41:03,358 INFO L129 PetriNetUnfolder]: 1/25 cut-off events. [2021-03-11 20:41:03,358 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2021-03-11 20:41:03,358 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 25 events. 1/25 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 8 event pairs, 0 based on Foata normal form. 1/26 useless extension candidates. Maximal degree in co-relation 76. Up to 6 conditions per place. [2021-03-11 20:41:03,358 INFO L132 encePairwiseOnDemand]: 319/332 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2021-03-11 20:41:03,358 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 23 transitions, 141 flow [2021-03-11 20:41:03,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-11 20:41:03,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-11 20:41:03,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2035 transitions. [2021-03-11 20:41:03,360 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.43782271944922546 [2021-03-11 20:41:03,360 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2035 transitions. [2021-03-11 20:41:03,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2035 transitions. [2021-03-11 20:41:03,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 20:41:03,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2035 transitions. [2021-03-11 20:41:03,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 145.35714285714286) internal successors, (2035), 14 states have internal predecessors, (2035), 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 20:41:03,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:41:03,363 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 332.0) internal successors, (4980), 15 states have internal predecessors, (4980), 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 20:41:03,363 INFO L185 Difference]: Start difference. First operand has 68 places, 24 transitions, 113 flow. Second operand 14 states and 2035 transitions. [2021-03-11 20:41:03,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 23 transitions, 141 flow [2021-03-11 20:41:03,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 23 transitions, 103 flow, removed 4 selfloop flow, removed 17 redundant places. [2021-03-11 20:41:03,363 INFO L241 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2021-03-11 20:41:03,364 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2021-03-11 20:41:03,364 INFO L335 CegarLoopForPetriNet]: 37 programPoint places, 19 predicate places. [2021-03-11 20:41:03,364 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2021-03-11 20:41:03,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 145.1875) internal successors, (2323), 16 states have internal predecessors, (2323), 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 20:41:03,364 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-11 20:41:03,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 08:41:03 BasicIcfg [2021-03-11 20:41:03,366 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 20:41:03,367 INFO L168 Benchmark]: Toolchain (without parser) took 102910.95 ms. Allocated memory was 337.6 MB in the beginning and 436.2 MB in the end (delta: 98.6 MB). Free memory was 299.2 MB in the beginning and 332.6 MB in the end (delta: -33.4 MB). Peak memory consumption was 67.6 MB. Max. memory is 16.0 GB. [2021-03-11 20:41:03,367 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 337.6 MB. Free memory is still 319.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 20:41:03,367 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.59 ms. Allocated memory is still 337.6 MB. Free memory was 298.7 MB in the beginning and 280.0 MB in the end (delta: 18.7 MB). Peak memory consumption was 83.4 MB. Max. memory is 16.0 GB. [2021-03-11 20:41:03,367 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.12 ms. Allocated memory is still 337.6 MB. Free memory was 280.0 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 20:41:03,367 INFO L168 Benchmark]: Boogie Preprocessor took 27.77 ms. Allocated memory is still 337.6 MB. Free memory was 276.8 MB in the beginning and 274.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 20:41:03,367 INFO L168 Benchmark]: RCFGBuilder took 501.70 ms. Allocated memory is still 337.6 MB. Free memory was 273.7 MB in the beginning and 226.5 MB in the end (delta: 47.2 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.0 GB. [2021-03-11 20:41:03,367 INFO L168 Benchmark]: TraceAbstraction took 101651.34 ms. Allocated memory was 337.6 MB in the beginning and 436.2 MB in the end (delta: 98.6 MB). Free memory was 225.4 MB in the beginning and 332.6 MB in the end (delta: -107.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 20:41:03,367 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 337.6 MB. Free memory is still 319.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 668.59 ms. Allocated memory is still 337.6 MB. Free memory was 298.7 MB in the beginning and 280.0 MB in the end (delta: 18.7 MB). Peak memory consumption was 83.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.12 ms. Allocated memory is still 337.6 MB. Free memory was 280.0 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. * Boogie Preprocessor took 27.77 ms. Allocated memory is still 337.6 MB. Free memory was 276.8 MB in the beginning and 274.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 501.70 ms. Allocated memory is still 337.6 MB. Free memory was 273.7 MB in the beginning and 226.5 MB in the end (delta: 47.2 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 101651.34 ms. Allocated memory was 337.6 MB in the beginning and 436.2 MB in the end (delta: 98.6 MB). Free memory was 225.4 MB in the beginning and 332.6 MB in the end (delta: -107.2 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 59949.7ms, 151 PlacesBefore, 37 PlacesAfterwards, 153 TransitionsBefore, 35 TransitionsAfterwards, 2492 CoEnabledTransitionPairs, 7 FixpointIterations, 91 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 16 ConcurrentYvCompositions, 4 ChoiceCompositions, 167 TotalNumberOfCompositions, 5719 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3177, positive: 2975, positive conditional: 0, positive unconditional: 2975, negative: 202, negative conditional: 0, negative unconditional: 202, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1771, positive: 1718, positive conditional: 0, positive unconditional: 1718, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1771, positive: 1714, positive conditional: 0, positive unconditional: 1714, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 57, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 13, unknown conditional: 0, unknown unconditional: 13] , SemanticIndependenceRelation.Query Time [ms]: [ total: 44873, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 850, negative conditional: 0, negative unconditional: 850, unknown: 44010, unknown conditional: 0, unknown unconditional: 44010] ], Cache Queries: [ total: 3177, positive: 1257, positive conditional: 0, positive unconditional: 1257, negative: 149, negative conditional: 0, negative unconditional: 149, unknown: 1771, unknown conditional: 0, unknown unconditional: 1771] , Statistics on independence cache: Total cache size (in pairs): 142, Positive cache size: 116, Positive conditional cache size: 0, Positive unconditional cache size: 116, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - 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: 1.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 101572.5ms, OverallIterations: 45, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 28077.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 60048.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 478 SDtfs, 1223 SDslu, 973 SDs, 0 SdLazy, 15632 SolverSat, 1009 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11498.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 922 GetRequests, 51 SyntacticMatches, 86 SemanticMatches, 785 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2003 ImplicationChecksByTransitivity, 20964.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2427occurred in iteration=25, InterpolantAutomatonStates: 540, 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: 58.0ms SsaConstructionTime, 759.8ms SatisfiabilityAnalysisTime, 12181.5ms InterpolantComputationTime, 922 NumberOfCodeBlocks, 922 NumberOfCodeBlocksAsserted, 45 NumberOfCheckSat, 877 ConstructedInterpolants, 0 QuantifiedInterpolants, 21479 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 45 InterpolantComputations, 45 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...