/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-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix029_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 04:40:06,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 04:40:06,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 04:40:06,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 04:40:06,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 04:40:06,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 04:40:06,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 04:40:06,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 04:40:06,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 04:40:06,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 04:40:06,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 04:40:06,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 04:40:06,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 04:40:06,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 04:40:06,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 04:40:06,891 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 04:40:06,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 04:40:06,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 04:40:06,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 04:40:06,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 04:40:06,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 04:40:06,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 04:40:06,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 04:40:06,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 04:40:06,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 04:40:06,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 04:40:06,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 04:40:06,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 04:40:06,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 04:40:06,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 04:40:06,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 04:40:06,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 04:40:06,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 04:40:06,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 04:40:06,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 04:40:06,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 04:40:06,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 04:40:06,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 04:40:06,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 04:40:06,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 04:40:06,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 04:40:06,927 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-RepeatedVariableLbe.epf [2021-03-25 04:40:06,962 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 04:40:06,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 04:40:06,966 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 04:40:06,966 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 04:40:06,966 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 04:40:06,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 04:40:06,966 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 04:40:06,967 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 04:40:06,967 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 04:40:06,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 04:40:06,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 04:40:06,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 04:40:06,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 04:40:06,968 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 04:40:06,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 04:40:06,969 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 04:40:06,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 04:40:06,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 04:40:06,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 04:40:06,969 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 04:40:06,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 04:40:06,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:40:06,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 04:40:06,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 04:40:06,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 04:40:06,971 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 04:40:06,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 04:40:06,971 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 04:40:06,971 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 04:40:06,971 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 04:40:06,971 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 04:40:07,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 04:40:07,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 04:40:07,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 04:40:07,303 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 04:40:07,304 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 04:40:07,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix029_power.opt.i [2021-03-25 04:40:07,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8f825b3b/0efd69ee72364a4ba08f1771db87cd8d/FLAGf77dc07cb [2021-03-25 04:40:07,894 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 04:40:07,894 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix029_power.opt.i [2021-03-25 04:40:07,907 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8f825b3b/0efd69ee72364a4ba08f1771db87cd8d/FLAGf77dc07cb [2021-03-25 04:40:08,332 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8f825b3b/0efd69ee72364a4ba08f1771db87cd8d [2021-03-25 04:40:08,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 04:40:08,338 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 04:40:08,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 04:40:08,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 04:40:08,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 04:40:08,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:40:08" (1/1) ... [2021-03-25 04:40:08,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58529eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:08, skipping insertion in model container [2021-03-25 04:40:08,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:40:08" (1/1) ... [2021-03-25 04:40:08,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 04:40:08,410 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 04:40:08,522 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix029_power.opt.i[950,963] [2021-03-25 04:40:08,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:40:08,693 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 04:40:08,703 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix029_power.opt.i[950,963] [2021-03-25 04:40:08,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:40:08,838 INFO L208 MainTranslator]: Completed translation [2021-03-25 04:40:08,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:08 WrapperNode [2021-03-25 04:40:08,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 04:40:08,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 04:40:08,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 04:40:08,840 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 04:40:08,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:08" (1/1) ... [2021-03-25 04:40:08,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:08" (1/1) ... [2021-03-25 04:40:08,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 04:40:08,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 04:40:08,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 04:40:08,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 04:40:08,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:08" (1/1) ... [2021-03-25 04:40:08,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:08" (1/1) ... [2021-03-25 04:40:08,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:08" (1/1) ... [2021-03-25 04:40:08,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:08" (1/1) ... [2021-03-25 04:40:08,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:08" (1/1) ... [2021-03-25 04:40:08,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:08" (1/1) ... [2021-03-25 04:40:08,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:08" (1/1) ... [2021-03-25 04:40:08,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 04:40:08,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 04:40:08,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 04:40:08,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 04:40:08,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:08" (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 [2021-03-25 04:40:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 04:40:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 04:40:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 04:40:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 04:40:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 04:40:09,003 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 04:40:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 04:40:09,004 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 04:40:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 04:40:09,004 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 04:40:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-25 04:40:09,004 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-25 04:40:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 04:40:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 04:40:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 04:40:09,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 04:40:09,006 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 04:40:10,901 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 04:40:10,901 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 04:40:10,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:40:10 BoogieIcfgContainer [2021-03-25 04:40:10,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 04:40:10,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 04:40:10,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 04:40:10,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 04:40:10,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 04:40:08" (1/3) ... [2021-03-25 04:40:10,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ea01f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:40:10, skipping insertion in model container [2021-03-25 04:40:10,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:40:08" (2/3) ... [2021-03-25 04:40:10,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ea01f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:40:10, skipping insertion in model container [2021-03-25 04:40:10,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:40:10" (3/3) ... [2021-03-25 04:40:10,909 INFO L111 eAbstractionObserver]: Analyzing ICFG mix029_power.opt.i [2021-03-25 04:40:10,915 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 04:40:10,919 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 04:40:10,919 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 04:40:10,961 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,961 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,961 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,962 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,962 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,962 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,962 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,962 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,963 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,963 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,963 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,963 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,963 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,964 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,964 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,964 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,964 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,964 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,964 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,964 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,965 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,965 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,965 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,965 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,965 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,965 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,965 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,966 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,966 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,966 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,966 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,967 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,967 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,967 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,968 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,968 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,968 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,969 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,969 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,969 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,969 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,970 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,970 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,970 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,970 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,970 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,971 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,971 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,971 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,971 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,971 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,971 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,971 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,971 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,973 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,973 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,973 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,973 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,973 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,973 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,973 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,974 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,974 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,974 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,974 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,975 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,975 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,976 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,976 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,976 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,976 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,976 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,976 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,976 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,977 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,977 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,977 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,977 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,977 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,977 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,978 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,978 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,978 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,978 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,978 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,978 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,978 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,980 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,981 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,981 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,984 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,986 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,990 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,990 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,990 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,990 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,990 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,991 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,991 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,991 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,991 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,993 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,993 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,993 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,993 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,993 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,993 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,994 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,994 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,994 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,995 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,996 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,997 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,997 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,997 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,998 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,998 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,998 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,998 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:10,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:40:11,000 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:40:11,017 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-25 04:40:11,046 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:40:11,046 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:40:11,046 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:40:11,046 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:40:11,046 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:40:11,046 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:40:11,047 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:40:11,047 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:40:11,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 116 transitions, 252 flow [2021-03-25 04:40:11,095 INFO L129 PetriNetUnfolder]: 2/112 cut-off events. [2021-03-25 04:40:11,095 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:40:11,099 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 112 events. 2/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-03-25 04:40:11,101 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 116 transitions, 252 flow [2021-03-25 04:40:11,109 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 112 transitions, 236 flow [2021-03-25 04:40:11,111 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:11,118 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 112 transitions, 236 flow [2021-03-25 04:40:11,120 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 112 transitions, 236 flow [2021-03-25 04:40:11,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 236 flow [2021-03-25 04:40:11,142 INFO L129 PetriNetUnfolder]: 2/112 cut-off events. [2021-03-25 04:40:11,143 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:40:11,143 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 112 events. 2/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-03-25 04:40:11,146 INFO L142 LiptonReduction]: Number of co-enabled transitions 2630 [2021-03-25 04:40:12,318 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 04:40:12,711 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 86 [2021-03-25 04:40:12,863 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-03-25 04:40:13,587 WARN L205 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-03-25 04:40:13,902 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-03-25 04:40:15,333 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-03-25 04:40:15,924 WARN L205 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-25 04:40:17,375 WARN L205 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2021-03-25 04:40:17,711 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-25 04:40:18,946 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 269 DAG size of output: 268 [2021-03-25 04:40:19,551 WARN L205 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-03-25 04:40:19,893 INFO L154 LiptonReduction]: Checked pairs total: 5205 [2021-03-25 04:40:19,893 INFO L156 LiptonReduction]: Total number of compositions: 74 [2021-03-25 04:40:19,895 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8785 [2021-03-25 04:40:19,902 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-03-25 04:40:19,902 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:40:19,902 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:19,903 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:19,903 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:19,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:19,907 INFO L82 PathProgramCache]: Analyzing trace with hash 595482538, now seen corresponding path program 1 times [2021-03-25 04:40:19,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:19,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485298809] [2021-03-25 04:40:19,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:20,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:20,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:20,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:40:20,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:20,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:20,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:40:20,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485298809] [2021-03-25 04:40:20,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:20,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:40:20,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163229373] [2021-03-25 04:40:20,174 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:40:20,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:20,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:40:20,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:40:20,186 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 190 [2021-03-25 04:40:20,191 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 47 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:20,192 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:20,192 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 190 [2021-03-25 04:40:20,193 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:20,313 INFO L129 PetriNetUnfolder]: 69/206 cut-off events. [2021-03-25 04:40:20,313 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:40:20,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 206 events. 69/206 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 954 event pairs, 39 based on Foata normal form. 10/194 useless extension candidates. Maximal degree in co-relation 315. Up to 89 conditions per place. [2021-03-25 04:40:20,317 INFO L132 encePairwiseOnDemand]: 186/190 looper letters, 9 selfloop transitions, 2 changer transitions 5/49 dead transitions. [2021-03-25 04:40:20,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 49 transitions, 136 flow [2021-03-25 04:40:20,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:40:20,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:40:20,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 523 transitions. [2021-03-25 04:40:20,336 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9175438596491228 [2021-03-25 04:40:20,337 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 523 transitions. [2021-03-25 04:40:20,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 523 transitions. [2021-03-25 04:40:20,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:20,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 523 transitions. [2021-03-25 04:40:20,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:20,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:20,359 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:20,361 INFO L185 Difference]: Start difference. First operand has 59 places, 47 transitions, 106 flow. Second operand 3 states and 523 transitions. [2021-03-25 04:40:20,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 49 transitions, 136 flow [2021-03-25 04:40:20,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 49 transitions, 132 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 04:40:20,366 INFO L241 Difference]: Finished difference. Result has 55 places, 40 transitions, 92 flow [2021-03-25 04:40:20,367 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=55, PETRI_TRANSITIONS=40} [2021-03-25 04:40:20,368 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -4 predicate places. [2021-03-25 04:40:20,368 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:20,368 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 40 transitions, 92 flow [2021-03-25 04:40:20,369 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 40 transitions, 92 flow [2021-03-25 04:40:20,369 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 40 transitions, 92 flow [2021-03-25 04:40:20,373 INFO L129 PetriNetUnfolder]: 0/40 cut-off events. [2021-03-25 04:40:20,373 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:40:20,374 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 40 events. 0/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 44 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 04:40:20,374 INFO L142 LiptonReduction]: Number of co-enabled transitions 434 [2021-03-25 04:40:20,919 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-03-25 04:40:21,193 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-03-25 04:40:22,413 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 270 DAG size of output: 269 [2021-03-25 04:40:22,992 WARN L205 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2021-03-25 04:40:24,149 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2021-03-25 04:40:24,283 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-03-25 04:40:24,578 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2021-03-25 04:40:24,718 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-03-25 04:40:24,723 INFO L154 LiptonReduction]: Checked pairs total: 2544 [2021-03-25 04:40:24,723 INFO L156 LiptonReduction]: Total number of compositions: 12 [2021-03-25 04:40:24,723 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4355 [2021-03-25 04:40:24,724 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 68 flow [2021-03-25 04:40:24,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:24,725 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:24,725 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:24,725 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 04:40:24,725 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:24,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:24,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1052868086, now seen corresponding path program 1 times [2021-03-25 04:40:24,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:24,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911791088] [2021-03-25 04:40:24,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:24,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:24,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:40:24,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:24,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:24,873 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-25 04:40:24,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-25 04:40:24,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:40:24,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911791088] [2021-03-25 04:40:24,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:24,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:40:24,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596049612] [2021-03-25 04:40:24,878 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:40:24,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:24,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:40:24,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:40:24,881 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 202 [2021-03-25 04:40:24,882 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 176.75) internal successors, (707), 4 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:24,882 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:24,882 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 202 [2021-03-25 04:40:24,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:24,900 INFO L129 PetriNetUnfolder]: 7/50 cut-off events. [2021-03-25 04:40:24,901 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:40:24,901 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 50 events. 7/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 116 event pairs, 3 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 72. Up to 18 conditions per place. [2021-03-25 04:40:24,901 INFO L132 encePairwiseOnDemand]: 198/202 looper letters, 4 selfloop transitions, 3 changer transitions 0/30 dead transitions. [2021-03-25 04:40:24,901 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 30 transitions, 86 flow [2021-03-25 04:40:24,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:40:24,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:40:24,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 536 transitions. [2021-03-25 04:40:24,904 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8844884488448845 [2021-03-25 04:40:24,904 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 536 transitions. [2021-03-25 04:40:24,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 536 transitions. [2021-03-25 04:40:24,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:24,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 536 transitions. [2021-03-25 04:40:24,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:24,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:24,908 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:24,908 INFO L185 Difference]: Start difference. First operand has 39 places, 28 transitions, 68 flow. Second operand 3 states and 536 transitions. [2021-03-25 04:40:24,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 30 transitions, 86 flow [2021-03-25 04:40:24,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 30 transitions, 82 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:40:24,910 INFO L241 Difference]: Finished difference. Result has 40 places, 30 transitions, 83 flow [2021-03-25 04:40:24,910 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=40, PETRI_TRANSITIONS=30} [2021-03-25 04:40:24,910 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -19 predicate places. [2021-03-25 04:40:24,911 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:24,911 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 30 transitions, 83 flow [2021-03-25 04:40:24,911 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 30 transitions, 83 flow [2021-03-25 04:40:24,911 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 30 transitions, 83 flow [2021-03-25 04:40:24,916 INFO L129 PetriNetUnfolder]: 3/42 cut-off events. [2021-03-25 04:40:24,916 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:40:24,916 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 42 events. 3/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 88 event pairs, 1 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 57. Up to 10 conditions per place. [2021-03-25 04:40:24,917 INFO L142 LiptonReduction]: Number of co-enabled transitions 436 [2021-03-25 04:40:24,919 INFO L154 LiptonReduction]: Checked pairs total: 466 [2021-03-25 04:40:24,919 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:24,920 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-25 04:40:24,920 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 83 flow [2021-03-25 04:40:24,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 176.75) internal successors, (707), 4 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:24,921 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:24,921 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:24,921 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 04:40:24,921 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:24,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:24,922 INFO L82 PathProgramCache]: Analyzing trace with hash 529659452, now seen corresponding path program 1 times [2021-03-25 04:40:24,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:24,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244913173] [2021-03-25 04:40:24,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:25,062 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 04:40:25,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 04:40:25,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:25,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:40:25,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:40:25,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244913173] [2021-03-25 04:40:25,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:25,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:40:25,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894036879] [2021-03-25 04:40:25,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:40:25,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:25,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:40:25,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:40:25,105 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 202 [2021-03-25 04:40:25,105 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 83 flow. Second operand has 4 states, 4 states have (on average 160.75) internal successors, (643), 4 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:25,106 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:25,106 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 202 [2021-03-25 04:40:25,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:25,183 INFO L129 PetriNetUnfolder]: 115/254 cut-off events. [2021-03-25 04:40:25,184 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2021-03-25 04:40:25,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 254 events. 115/254 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1179 event pairs, 73 based on Foata normal form. 1/228 useless extension candidates. Maximal degree in co-relation 490. Up to 165 conditions per place. [2021-03-25 04:40:25,190 INFO L132 encePairwiseOnDemand]: 197/202 looper letters, 8 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2021-03-25 04:40:25,190 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 34 transitions, 115 flow [2021-03-25 04:40:25,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:40:25,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:40:25,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 493 transitions. [2021-03-25 04:40:25,193 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8135313531353136 [2021-03-25 04:40:25,193 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 493 transitions. [2021-03-25 04:40:25,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 493 transitions. [2021-03-25 04:40:25,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:25,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 493 transitions. [2021-03-25 04:40:25,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:25,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:25,200 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:25,200 INFO L185 Difference]: Start difference. First operand has 40 places, 30 transitions, 83 flow. Second operand 3 states and 493 transitions. [2021-03-25 04:40:25,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 34 transitions, 115 flow [2021-03-25 04:40:25,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 34 transitions, 112 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:40:25,203 INFO L241 Difference]: Finished difference. Result has 42 places, 33 transitions, 106 flow [2021-03-25 04:40:25,203 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=42, PETRI_TRANSITIONS=33} [2021-03-25 04:40:25,203 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -17 predicate places. [2021-03-25 04:40:25,203 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:25,203 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 33 transitions, 106 flow [2021-03-25 04:40:25,204 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 33 transitions, 106 flow [2021-03-25 04:40:25,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 33 transitions, 106 flow [2021-03-25 04:40:25,233 INFO L129 PetriNetUnfolder]: 24/93 cut-off events. [2021-03-25 04:40:25,233 INFO L130 PetriNetUnfolder]: For 13/14 co-relation queries the response was YES. [2021-03-25 04:40:25,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 93 events. 24/93 cut-off events. For 13/14 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 334 event pairs, 13 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 162. Up to 43 conditions per place. [2021-03-25 04:40:25,235 INFO L142 LiptonReduction]: Number of co-enabled transitions 484 [2021-03-25 04:40:25,237 INFO L154 LiptonReduction]: Checked pairs total: 345 [2021-03-25 04:40:25,238 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:25,238 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-03-25 04:40:25,238 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 33 transitions, 106 flow [2021-03-25 04:40:25,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 160.75) internal successors, (643), 4 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:25,239 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:25,239 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:25,239 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 04:40:25,239 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:25,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:25,240 INFO L82 PathProgramCache]: Analyzing trace with hash -703348542, now seen corresponding path program 1 times [2021-03-25 04:40:25,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:25,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731207272] [2021-03-25 04:40:25,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:25,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:25,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:40:25,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:25,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:25,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:40:25,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731207272] [2021-03-25 04:40:25,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:25,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:40:25,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4416480] [2021-03-25 04:40:25,352 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:40:25,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:25,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:40:25,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:40:25,353 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 202 [2021-03-25 04:40:25,354 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 33 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:25,354 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:25,354 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 202 [2021-03-25 04:40:25,354 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:25,390 INFO L129 PetriNetUnfolder]: 29/129 cut-off events. [2021-03-25 04:40:25,390 INFO L130 PetriNetUnfolder]: For 67/84 co-relation queries the response was YES. [2021-03-25 04:40:25,391 INFO L84 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 129 events. 29/129 cut-off events. For 67/84 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 608 event pairs, 14 based on Foata normal form. 9/128 useless extension candidates. Maximal degree in co-relation 256. Up to 46 conditions per place. [2021-03-25 04:40:25,392 INFO L132 encePairwiseOnDemand]: 199/202 looper letters, 5 selfloop transitions, 3 changer transitions 0/34 dead transitions. [2021-03-25 04:40:25,392 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 34 transitions, 124 flow [2021-03-25 04:40:25,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:40:25,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:40:25,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 548 transitions. [2021-03-25 04:40:25,394 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9042904290429042 [2021-03-25 04:40:25,395 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 548 transitions. [2021-03-25 04:40:25,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 548 transitions. [2021-03-25 04:40:25,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:25,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 548 transitions. [2021-03-25 04:40:25,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:25,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:25,398 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:25,399 INFO L185 Difference]: Start difference. First operand has 42 places, 33 transitions, 106 flow. Second operand 3 states and 548 transitions. [2021-03-25 04:40:25,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 34 transitions, 124 flow [2021-03-25 04:40:25,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 34 transitions, 120 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:40:25,401 INFO L241 Difference]: Finished difference. Result has 44 places, 33 transitions, 113 flow [2021-03-25 04:40:25,401 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=44, PETRI_TRANSITIONS=33} [2021-03-25 04:40:25,402 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -15 predicate places. [2021-03-25 04:40:25,402 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:25,402 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 33 transitions, 113 flow [2021-03-25 04:40:25,402 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 33 transitions, 113 flow [2021-03-25 04:40:25,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 33 transitions, 113 flow [2021-03-25 04:40:25,417 INFO L129 PetriNetUnfolder]: 19/99 cut-off events. [2021-03-25 04:40:25,417 INFO L130 PetriNetUnfolder]: For 55/57 co-relation queries the response was YES. [2021-03-25 04:40:25,418 INFO L84 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 99 events. 19/99 cut-off events. For 55/57 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 409 event pairs, 8 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 191. Up to 40 conditions per place. [2021-03-25 04:40:25,419 INFO L142 LiptonReduction]: Number of co-enabled transitions 484 [2021-03-25 04:40:25,425 INFO L154 LiptonReduction]: Checked pairs total: 447 [2021-03-25 04:40:25,425 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:25,425 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-25 04:40:25,426 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 33 transitions, 113 flow [2021-03-25 04:40:25,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 181.0) internal successors, (543), 3 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:25,426 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:25,426 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:25,426 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 04:40:25,427 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:25,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:25,427 INFO L82 PathProgramCache]: Analyzing trace with hash -703174694, now seen corresponding path program 1 times [2021-03-25 04:40:25,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:25,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903674556] [2021-03-25 04:40:25,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:25,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:25,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:25,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:25,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:40:25,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903674556] [2021-03-25 04:40:25,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:25,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:40:25,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543434559] [2021-03-25 04:40:25,534 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:40:25,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:25,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:40:25,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:40:25,539 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 202 [2021-03-25 04:40:25,540 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 33 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:25,540 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:25,540 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 202 [2021-03-25 04:40:25,540 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:25,566 INFO L129 PetriNetUnfolder]: 19/97 cut-off events. [2021-03-25 04:40:25,567 INFO L130 PetriNetUnfolder]: For 110/113 co-relation queries the response was YES. [2021-03-25 04:40:25,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 97 events. 19/97 cut-off events. For 110/113 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 381 event pairs, 8 based on Foata normal form. 3/94 useless extension candidates. Maximal degree in co-relation 201. Up to 40 conditions per place. [2021-03-25 04:40:25,568 INFO L132 encePairwiseOnDemand]: 199/202 looper letters, 1 selfloop transitions, 2 changer transitions 0/33 dead transitions. [2021-03-25 04:40:25,568 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 33 transitions, 119 flow [2021-03-25 04:40:25,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:40:25,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:40:25,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 547 transitions. [2021-03-25 04:40:25,570 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9026402640264026 [2021-03-25 04:40:25,570 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 547 transitions. [2021-03-25 04:40:25,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 547 transitions. [2021-03-25 04:40:25,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:25,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 547 transitions. [2021-03-25 04:40:25,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 182.33333333333334) internal successors, (547), 3 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:25,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:25,573 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:25,574 INFO L185 Difference]: Start difference. First operand has 44 places, 33 transitions, 113 flow. Second operand 3 states and 547 transitions. [2021-03-25 04:40:25,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 33 transitions, 119 flow [2021-03-25 04:40:25,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 33 transitions, 114 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 04:40:25,576 INFO L241 Difference]: Finished difference. Result has 46 places, 33 transitions, 116 flow [2021-03-25 04:40:25,576 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=46, PETRI_TRANSITIONS=33} [2021-03-25 04:40:25,576 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -13 predicate places. [2021-03-25 04:40:25,576 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:25,576 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 33 transitions, 116 flow [2021-03-25 04:40:25,576 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 33 transitions, 116 flow [2021-03-25 04:40:25,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 33 transitions, 116 flow [2021-03-25 04:40:25,588 INFO L129 PetriNetUnfolder]: 19/99 cut-off events. [2021-03-25 04:40:25,589 INFO L130 PetriNetUnfolder]: For 69/71 co-relation queries the response was YES. [2021-03-25 04:40:25,590 INFO L84 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 99 events. 19/99 cut-off events. For 69/71 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 406 event pairs, 8 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 204. Up to 40 conditions per place. [2021-03-25 04:40:25,592 INFO L142 LiptonReduction]: Number of co-enabled transitions 482 [2021-03-25 04:40:25,596 INFO L154 LiptonReduction]: Checked pairs total: 428 [2021-03-25 04:40:25,596 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:25,597 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-03-25 04:40:25,599 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 33 transitions, 116 flow [2021-03-25 04:40:25,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 181.66666666666666) internal successors, (545), 3 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:25,600 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:25,600 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:25,600 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 04:40:25,600 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:25,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:25,601 INFO L82 PathProgramCache]: Analyzing trace with hash -2098384373, now seen corresponding path program 1 times [2021-03-25 04:40:25,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:25,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950892214] [2021-03-25 04:40:25,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:25,718 INFO L142 QuantifierPusher]: treesize reduction 30, result has 34.8 percent of original size [2021-03-25 04:40:25,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 04:40:25,735 INFO L142 QuantifierPusher]: treesize reduction 30, result has 25.0 percent of original size [2021-03-25 04:40:25,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:40:25,747 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.9 percent of original size [2021-03-25 04:40:25,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-25 04:40:25,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:40:25,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950892214] [2021-03-25 04:40:25,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:25,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:40:25,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489670972] [2021-03-25 04:40:25,783 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:40:25,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:25,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:40:25,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:40:25,785 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 202 [2021-03-25 04:40:25,786 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 33 transitions, 116 flow. Second operand has 5 states, 5 states have (on average 162.8) internal successors, (814), 5 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:25,786 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:25,786 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 202 [2021-03-25 04:40:25,786 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:25,898 INFO L129 PetriNetUnfolder]: 113/283 cut-off events. [2021-03-25 04:40:25,899 INFO L130 PetriNetUnfolder]: For 291/360 co-relation queries the response was YES. [2021-03-25 04:40:25,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 712 conditions, 283 events. 113/283 cut-off events. For 291/360 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1501 event pairs, 74 based on Foata normal form. 11/275 useless extension candidates. Maximal degree in co-relation 697. Up to 189 conditions per place. [2021-03-25 04:40:25,901 INFO L132 encePairwiseOnDemand]: 196/202 looper letters, 9 selfloop transitions, 7 changer transitions 0/38 dead transitions. [2021-03-25 04:40:25,901 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 38 transitions, 162 flow [2021-03-25 04:40:25,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:40:25,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:40:25,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 665 transitions. [2021-03-25 04:40:25,904 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.823019801980198 [2021-03-25 04:40:25,904 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 665 transitions. [2021-03-25 04:40:25,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 665 transitions. [2021-03-25 04:40:25,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:25,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 665 transitions. [2021-03-25 04:40:25,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 166.25) internal successors, (665), 4 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:25,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:25,909 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:25,909 INFO L185 Difference]: Start difference. First operand has 46 places, 33 transitions, 116 flow. Second operand 4 states and 665 transitions. [2021-03-25 04:40:25,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 38 transitions, 162 flow [2021-03-25 04:40:25,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 38 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:40:25,913 INFO L241 Difference]: Finished difference. Result has 48 places, 36 transitions, 148 flow [2021-03-25 04:40:25,913 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=48, PETRI_TRANSITIONS=36} [2021-03-25 04:40:25,913 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -11 predicate places. [2021-03-25 04:40:25,913 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:25,913 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 36 transitions, 148 flow [2021-03-25 04:40:25,913 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 36 transitions, 148 flow [2021-03-25 04:40:25,914 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 36 transitions, 148 flow [2021-03-25 04:40:25,928 INFO L129 PetriNetUnfolder]: 32/114 cut-off events. [2021-03-25 04:40:25,928 INFO L130 PetriNetUnfolder]: For 151/172 co-relation queries the response was YES. [2021-03-25 04:40:25,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 114 events. 32/114 cut-off events. For 151/172 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 468 event pairs, 10 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 286. Up to 57 conditions per place. [2021-03-25 04:40:25,930 INFO L142 LiptonReduction]: Number of co-enabled transitions 540 [2021-03-25 04:40:25,934 INFO L154 LiptonReduction]: Checked pairs total: 375 [2021-03-25 04:40:25,934 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:25,934 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-03-25 04:40:25,935 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 36 transitions, 148 flow [2021-03-25 04:40:25,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 162.8) internal successors, (814), 5 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:25,936 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:25,936 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:25,936 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 04:40:25,936 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:25,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:25,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1262022584, now seen corresponding path program 1 times [2021-03-25 04:40:25,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:25,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170205539] [2021-03-25 04:40:25,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:26,028 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-25 04:40:26,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 04:40:26,048 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-25 04:40:26,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 04:40:26,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:26,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:40:26,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:40:26,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170205539] [2021-03-25 04:40:26,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:26,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:40:26,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965787112] [2021-03-25 04:40:26,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:40:26,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:26,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:40:26,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:40:26,086 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 202 [2021-03-25 04:40:26,087 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 164.8) internal successors, (824), 5 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:26,087 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:26,087 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 202 [2021-03-25 04:40:26,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:26,182 INFO L129 PetriNetUnfolder]: 114/272 cut-off events. [2021-03-25 04:40:26,183 INFO L130 PetriNetUnfolder]: For 494/605 co-relation queries the response was YES. [2021-03-25 04:40:26,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 272 events. 114/272 cut-off events. For 494/605 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1373 event pairs, 44 based on Foata normal form. 12/266 useless extension candidates. Maximal degree in co-relation 794. Up to 165 conditions per place. [2021-03-25 04:40:26,186 INFO L132 encePairwiseOnDemand]: 196/202 looper letters, 15 selfloop transitions, 8 changer transitions 0/45 dead transitions. [2021-03-25 04:40:26,186 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 45 transitions, 236 flow [2021-03-25 04:40:26,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:40:26,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:40:26,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 674 transitions. [2021-03-25 04:40:26,189 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8341584158415841 [2021-03-25 04:40:26,189 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 674 transitions. [2021-03-25 04:40:26,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 674 transitions. [2021-03-25 04:40:26,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:26,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 674 transitions. [2021-03-25 04:40:26,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 168.5) internal successors, (674), 4 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:26,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:26,192 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:26,193 INFO L185 Difference]: Start difference. First operand has 48 places, 36 transitions, 148 flow. Second operand 4 states and 674 transitions. [2021-03-25 04:40:26,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 45 transitions, 236 flow [2021-03-25 04:40:26,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 45 transitions, 222 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-25 04:40:26,196 INFO L241 Difference]: Finished difference. Result has 51 places, 40 transitions, 188 flow [2021-03-25 04:40:26,196 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=188, PETRI_PLACES=51, PETRI_TRANSITIONS=40} [2021-03-25 04:40:26,197 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -8 predicate places. [2021-03-25 04:40:26,197 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:26,197 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 40 transitions, 188 flow [2021-03-25 04:40:26,197 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 40 transitions, 188 flow [2021-03-25 04:40:26,198 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 40 transitions, 188 flow [2021-03-25 04:40:26,218 INFO L129 PetriNetUnfolder]: 52/159 cut-off events. [2021-03-25 04:40:26,218 INFO L130 PetriNetUnfolder]: For 387/430 co-relation queries the response was YES. [2021-03-25 04:40:26,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 159 events. 52/159 cut-off events. For 387/430 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 751 event pairs, 20 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 486. Up to 73 conditions per place. [2021-03-25 04:40:26,221 INFO L142 LiptonReduction]: Number of co-enabled transitions 610 [2021-03-25 04:40:26,225 INFO L154 LiptonReduction]: Checked pairs total: 408 [2021-03-25 04:40:26,225 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:26,226 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-03-25 04:40:26,230 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 188 flow [2021-03-25 04:40:26,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 164.8) internal successors, (824), 5 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:26,231 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:26,231 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:26,231 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 04:40:26,231 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:26,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:26,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1215429460, now seen corresponding path program 1 times [2021-03-25 04:40:26,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:26,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814712102] [2021-03-25 04:40:26,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:26,338 INFO L142 QuantifierPusher]: treesize reduction 30, result has 42.3 percent of original size [2021-03-25 04:40:26,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 04:40:26,352 INFO L142 QuantifierPusher]: treesize reduction 47, result has 42.7 percent of original size [2021-03-25 04:40:26,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 04:40:26,376 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-25 04:40:26,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 04:40:26,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:40:26,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814712102] [2021-03-25 04:40:26,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:26,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:40:26,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638342765] [2021-03-25 04:40:26,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:40:26,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:26,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:40:26,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:40:26,400 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 202 [2021-03-25 04:40:26,400 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 188 flow. Second operand has 5 states, 5 states have (on average 158.8) internal successors, (794), 5 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:26,401 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:26,401 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 202 [2021-03-25 04:40:26,401 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:26,499 INFO L129 PetriNetUnfolder]: 114/299 cut-off events. [2021-03-25 04:40:26,499 INFO L130 PetriNetUnfolder]: For 645/801 co-relation queries the response was YES. [2021-03-25 04:40:26,501 INFO L84 FinitePrefix]: Finished finitePrefix Result has 989 conditions, 299 events. 114/299 cut-off events. For 645/801 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1629 event pairs, 27 based on Foata normal form. 22/307 useless extension candidates. Maximal degree in co-relation 971. Up to 186 conditions per place. [2021-03-25 04:40:26,502 INFO L132 encePairwiseOnDemand]: 196/202 looper letters, 13 selfloop transitions, 9 changer transitions 1/45 dead transitions. [2021-03-25 04:40:26,502 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 45 transitions, 257 flow [2021-03-25 04:40:26,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:40:26,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:40:26,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 650 transitions. [2021-03-25 04:40:26,505 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8044554455445545 [2021-03-25 04:40:26,505 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 650 transitions. [2021-03-25 04:40:26,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 650 transitions. [2021-03-25 04:40:26,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:26,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 650 transitions. [2021-03-25 04:40:26,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 162.5) internal successors, (650), 4 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:26,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:26,509 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:26,509 INFO L185 Difference]: Start difference. First operand has 51 places, 40 transitions, 188 flow. Second operand 4 states and 650 transitions. [2021-03-25 04:40:26,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 45 transitions, 257 flow [2021-03-25 04:40:26,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 45 transitions, 246 flow, removed 3 selfloop flow, removed 1 redundant places. [2021-03-25 04:40:26,514 INFO L241 Difference]: Finished difference. Result has 55 places, 42 transitions, 231 flow [2021-03-25 04:40:26,515 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=231, PETRI_PLACES=55, PETRI_TRANSITIONS=42} [2021-03-25 04:40:26,515 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -4 predicate places. [2021-03-25 04:40:26,515 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:26,515 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 42 transitions, 231 flow [2021-03-25 04:40:26,515 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 42 transitions, 231 flow [2021-03-25 04:40:26,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 42 transitions, 231 flow [2021-03-25 04:40:26,550 INFO L129 PetriNetUnfolder]: 47/155 cut-off events. [2021-03-25 04:40:26,550 INFO L130 PetriNetUnfolder]: For 661/708 co-relation queries the response was YES. [2021-03-25 04:40:26,551 INFO L84 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 155 events. 47/155 cut-off events. For 661/708 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 750 event pairs, 21 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 545. Up to 73 conditions per place. [2021-03-25 04:40:26,553 INFO L142 LiptonReduction]: Number of co-enabled transitions 640 [2021-03-25 04:40:26,558 INFO L154 LiptonReduction]: Checked pairs total: 456 [2021-03-25 04:40:26,559 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:26,559 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-03-25 04:40:26,559 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 42 transitions, 231 flow [2021-03-25 04:40:26,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 158.8) internal successors, (794), 5 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:26,560 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:26,560 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:26,560 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 04:40:26,560 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:26,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:26,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1855274803, now seen corresponding path program 1 times [2021-03-25 04:40:26,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:26,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130240488] [2021-03-25 04:40:26,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:26,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:26,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 04:40:26,649 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-03-25 04:40:26,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 04:40:26,672 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 04:40:26,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-25 04:40:26,705 INFO L142 QuantifierPusher]: treesize reduction 11, result has 86.4 percent of original size [2021-03-25 04:40:26,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-25 04:40:26,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:40:26,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130240488] [2021-03-25 04:40:26,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:26,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:40:26,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240275434] [2021-03-25 04:40:26,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:40:26,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:26,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:40:26,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:40:26,731 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 202 [2021-03-25 04:40:26,731 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 42 transitions, 231 flow. Second operand has 6 states, 6 states have (on average 157.83333333333334) internal successors, (947), 6 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:26,732 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:26,732 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 202 [2021-03-25 04:40:26,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:26,865 INFO L129 PetriNetUnfolder]: 111/273 cut-off events. [2021-03-25 04:40:26,866 INFO L130 PetriNetUnfolder]: For 1256/1415 co-relation queries the response was YES. [2021-03-25 04:40:26,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1041 conditions, 273 events. 111/273 cut-off events. For 1256/1415 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1430 event pairs, 42 based on Foata normal form. 19/274 useless extension candidates. Maximal degree in co-relation 1020. Up to 167 conditions per place. [2021-03-25 04:40:26,868 INFO L132 encePairwiseOnDemand]: 197/202 looper letters, 16 selfloop transitions, 10 changer transitions 0/48 dead transitions. [2021-03-25 04:40:26,869 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 48 transitions, 325 flow [2021-03-25 04:40:26,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:40:26,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:40:26,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 646 transitions. [2021-03-25 04:40:26,871 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7995049504950495 [2021-03-25 04:40:26,871 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 646 transitions. [2021-03-25 04:40:26,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 646 transitions. [2021-03-25 04:40:26,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:26,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 646 transitions. [2021-03-25 04:40:26,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 161.5) internal successors, (646), 4 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:26,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:26,875 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:26,875 INFO L185 Difference]: Start difference. First operand has 55 places, 42 transitions, 231 flow. Second operand 4 states and 646 transitions. [2021-03-25 04:40:26,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 48 transitions, 325 flow [2021-03-25 04:40:26,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 48 transitions, 312 flow, removed 3 selfloop flow, removed 1 redundant places. [2021-03-25 04:40:26,878 INFO L241 Difference]: Finished difference. Result has 58 places, 44 transitions, 264 flow [2021-03-25 04:40:26,878 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=264, PETRI_PLACES=58, PETRI_TRANSITIONS=44} [2021-03-25 04:40:26,878 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, -1 predicate places. [2021-03-25 04:40:26,878 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:26,878 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 44 transitions, 264 flow [2021-03-25 04:40:26,878 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 44 transitions, 264 flow [2021-03-25 04:40:26,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 44 transitions, 264 flow [2021-03-25 04:40:26,902 INFO L129 PetriNetUnfolder]: 44/152 cut-off events. [2021-03-25 04:40:26,902 INFO L130 PetriNetUnfolder]: For 895/950 co-relation queries the response was YES. [2021-03-25 04:40:26,902 INFO L84 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 152 events. 44/152 cut-off events. For 895/950 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 774 event pairs, 15 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 569. Up to 69 conditions per place. [2021-03-25 04:40:26,904 INFO L142 LiptonReduction]: Number of co-enabled transitions 670 [2021-03-25 04:40:26,909 INFO L154 LiptonReduction]: Checked pairs total: 569 [2021-03-25 04:40:26,909 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:26,909 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-25 04:40:26,910 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 44 transitions, 264 flow [2021-03-25 04:40:26,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 157.83333333333334) internal successors, (947), 6 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:26,910 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:26,910 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:26,911 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 04:40:26,911 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:26,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:26,911 INFO L82 PathProgramCache]: Analyzing trace with hash 466921898, now seen corresponding path program 1 times [2021-03-25 04:40:26,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:26,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548200243] [2021-03-25 04:40:26,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:26,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:26,976 INFO L142 QuantifierPusher]: treesize reduction 30, result has 25.0 percent of original size [2021-03-25 04:40:26,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:40:26,984 INFO L142 QuantifierPusher]: treesize reduction 30, result has 30.2 percent of original size [2021-03-25 04:40:26,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:40:26,995 INFO L142 QuantifierPusher]: treesize reduction 40, result has 54.0 percent of original size [2021-03-25 04:40:26,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 04:40:27,012 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-03-25 04:40:27,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-25 04:40:27,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:40:27,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548200243] [2021-03-25 04:40:27,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:27,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:40:27,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821732334] [2021-03-25 04:40:27,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:40:27,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:27,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:40:27,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:40:27,040 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 202 [2021-03-25 04:40:27,041 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 44 transitions, 264 flow. Second operand has 6 states, 6 states have (on average 164.83333333333334) internal successors, (989), 6 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:27,041 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:27,041 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 202 [2021-03-25 04:40:27,042 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:27,177 INFO L129 PetriNetUnfolder]: 126/299 cut-off events. [2021-03-25 04:40:27,177 INFO L130 PetriNetUnfolder]: For 1743/1972 co-relation queries the response was YES. [2021-03-25 04:40:27,178 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1215 conditions, 299 events. 126/299 cut-off events. For 1743/1972 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1571 event pairs, 32 based on Foata normal form. 30/313 useless extension candidates. Maximal degree in co-relation 1192. Up to 179 conditions per place. [2021-03-25 04:40:27,180 INFO L132 encePairwiseOnDemand]: 194/202 looper letters, 18 selfloop transitions, 15 changer transitions 0/55 dead transitions. [2021-03-25 04:40:27,180 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 55 transitions, 402 flow [2021-03-25 04:40:27,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:40:27,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:40:27,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 842 transitions. [2021-03-25 04:40:27,183 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8336633663366336 [2021-03-25 04:40:27,183 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 842 transitions. [2021-03-25 04:40:27,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 842 transitions. [2021-03-25 04:40:27,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:27,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 842 transitions. [2021-03-25 04:40:27,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 168.4) internal successors, (842), 5 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:27,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 202.0) internal successors, (1212), 6 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:27,188 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 202.0) internal successors, (1212), 6 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:27,188 INFO L185 Difference]: Start difference. First operand has 58 places, 44 transitions, 264 flow. Second operand 5 states and 842 transitions. [2021-03-25 04:40:27,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 55 transitions, 402 flow [2021-03-25 04:40:27,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 55 transitions, 387 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-03-25 04:40:27,192 INFO L241 Difference]: Finished difference. Result has 63 places, 51 transitions, 347 flow [2021-03-25 04:40:27,192 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=347, PETRI_PLACES=63, PETRI_TRANSITIONS=51} [2021-03-25 04:40:27,193 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 4 predicate places. [2021-03-25 04:40:27,193 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:27,193 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 51 transitions, 347 flow [2021-03-25 04:40:27,193 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 51 transitions, 347 flow [2021-03-25 04:40:27,193 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 51 transitions, 347 flow [2021-03-25 04:40:27,225 INFO L129 PetriNetUnfolder]: 91/267 cut-off events. [2021-03-25 04:40:27,225 INFO L130 PetriNetUnfolder]: For 1469/1568 co-relation queries the response was YES. [2021-03-25 04:40:27,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1074 conditions, 267 events. 91/267 cut-off events. For 1469/1568 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1531 event pairs, 33 based on Foata normal form. 6/253 useless extension candidates. Maximal degree in co-relation 1050. Up to 114 conditions per place. [2021-03-25 04:40:27,230 INFO L142 LiptonReduction]: Number of co-enabled transitions 774 [2021-03-25 04:40:27,244 INFO L154 LiptonReduction]: Checked pairs total: 631 [2021-03-25 04:40:27,244 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:27,244 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51 [2021-03-25 04:40:27,246 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 51 transitions, 347 flow [2021-03-25 04:40:27,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 164.83333333333334) internal successors, (989), 6 states have internal predecessors, (989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:27,246 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:27,246 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:27,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 04:40:27,247 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:27,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:27,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1764212338, now seen corresponding path program 2 times [2021-03-25 04:40:27,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:27,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271451231] [2021-03-25 04:40:27,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:27,316 INFO L142 QuantifierPusher]: treesize reduction 30, result has 25.0 percent of original size [2021-03-25 04:40:27,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:40:27,325 INFO L142 QuantifierPusher]: treesize reduction 30, result has 30.2 percent of original size [2021-03-25 04:40:27,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:40:27,334 INFO L142 QuantifierPusher]: treesize reduction 30, result has 25.0 percent of original size [2021-03-25 04:40:27,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:40:27,343 INFO L142 QuantifierPusher]: treesize reduction 2, result has 96.9 percent of original size [2021-03-25 04:40:27,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-25 04:40:27,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:40:27,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271451231] [2021-03-25 04:40:27,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:27,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:40:27,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873123799] [2021-03-25 04:40:27,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:40:27,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:27,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:40:27,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:40:27,386 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 202 [2021-03-25 04:40:27,387 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 51 transitions, 347 flow. Second operand has 6 states, 6 states have (on average 170.83333333333334) internal successors, (1025), 6 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:27,387 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:27,387 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 202 [2021-03-25 04:40:27,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:27,500 INFO L129 PetriNetUnfolder]: 136/348 cut-off events. [2021-03-25 04:40:27,501 INFO L130 PetriNetUnfolder]: For 1983/2304 co-relation queries the response was YES. [2021-03-25 04:40:27,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1514 conditions, 348 events. 136/348 cut-off events. For 1983/2304 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2010 event pairs, 38 based on Foata normal form. 35/372 useless extension candidates. Maximal degree in co-relation 1488. Up to 197 conditions per place. [2021-03-25 04:40:27,504 INFO L132 encePairwiseOnDemand]: 196/202 looper letters, 17 selfloop transitions, 16 changer transitions 0/55 dead transitions. [2021-03-25 04:40:27,504 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 55 transitions, 443 flow [2021-03-25 04:40:27,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:40:27,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:40:27,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 694 transitions. [2021-03-25 04:40:27,507 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8589108910891089 [2021-03-25 04:40:27,507 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 694 transitions. [2021-03-25 04:40:27,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 694 transitions. [2021-03-25 04:40:27,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:27,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 694 transitions. [2021-03-25 04:40:27,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 173.5) internal successors, (694), 4 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:27,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:27,511 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:27,511 INFO L185 Difference]: Start difference. First operand has 63 places, 51 transitions, 347 flow. Second operand 4 states and 694 transitions. [2021-03-25 04:40:27,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 55 transitions, 443 flow [2021-03-25 04:40:27,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 55 transitions, 420 flow, removed 7 selfloop flow, removed 1 redundant places. [2021-03-25 04:40:27,516 INFO L241 Difference]: Finished difference. Result has 66 places, 54 transitions, 405 flow [2021-03-25 04:40:27,516 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=405, PETRI_PLACES=66, PETRI_TRANSITIONS=54} [2021-03-25 04:40:27,517 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 7 predicate places. [2021-03-25 04:40:27,517 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:27,517 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 54 transitions, 405 flow [2021-03-25 04:40:27,517 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 54 transitions, 405 flow [2021-03-25 04:40:27,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 54 transitions, 405 flow [2021-03-25 04:40:27,557 INFO L129 PetriNetUnfolder]: 96/277 cut-off events. [2021-03-25 04:40:27,557 INFO L130 PetriNetUnfolder]: For 2164/2343 co-relation queries the response was YES. [2021-03-25 04:40:27,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1289 conditions, 277 events. 96/277 cut-off events. For 2164/2343 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1592 event pairs, 14 based on Foata normal form. 5/272 useless extension candidates. Maximal degree in co-relation 1263. Up to 139 conditions per place. [2021-03-25 04:40:27,562 INFO L142 LiptonReduction]: Number of co-enabled transitions 842 [2021-03-25 04:40:27,583 INFO L154 LiptonReduction]: Checked pairs total: 760 [2021-03-25 04:40:27,584 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:27,584 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 67 [2021-03-25 04:40:27,586 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 54 transitions, 405 flow [2021-03-25 04:40:27,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 170.83333333333334) internal successors, (1025), 6 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:27,586 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:27,586 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:27,587 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 04:40:27,587 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:27,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:27,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1748742142, now seen corresponding path program 1 times [2021-03-25 04:40:27,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:27,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511955048] [2021-03-25 04:40:27,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:27,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:27,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:27,644 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:40:27,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:40:27,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:27,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:40:27,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:40:27,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511955048] [2021-03-25 04:40:27,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:27,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:40:27,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578627389] [2021-03-25 04:40:27,650 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:40:27,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:27,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:40:27,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:40:27,652 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 202 [2021-03-25 04:40:27,652 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 54 transitions, 405 flow. Second operand has 4 states, 4 states have (on average 165.75) internal successors, (663), 4 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:27,652 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:27,652 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 202 [2021-03-25 04:40:27,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:27,830 INFO L129 PetriNetUnfolder]: 749/1402 cut-off events. [2021-03-25 04:40:27,830 INFO L130 PetriNetUnfolder]: For 5152/5468 co-relation queries the response was YES. [2021-03-25 04:40:27,839 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4329 conditions, 1402 events. 749/1402 cut-off events. For 5152/5468 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 9920 event pairs, 318 based on Foata normal form. 106/1240 useless extension candidates. Maximal degree in co-relation 4301. Up to 881 conditions per place. [2021-03-25 04:40:27,848 INFO L132 encePairwiseOnDemand]: 195/202 looper letters, 13 selfloop transitions, 10 changer transitions 0/68 dead transitions. [2021-03-25 04:40:27,848 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 68 transitions, 479 flow [2021-03-25 04:40:27,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:40:27,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:40:27,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 849 transitions. [2021-03-25 04:40:27,850 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8405940594059406 [2021-03-25 04:40:27,851 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 849 transitions. [2021-03-25 04:40:27,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 849 transitions. [2021-03-25 04:40:27,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:27,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 849 transitions. [2021-03-25 04:40:27,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 169.8) internal successors, (849), 5 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:27,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 202.0) internal successors, (1212), 6 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:27,855 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 202.0) internal successors, (1212), 6 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:27,855 INFO L185 Difference]: Start difference. First operand has 66 places, 54 transitions, 405 flow. Second operand 5 states and 849 transitions. [2021-03-25 04:40:27,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 68 transitions, 479 flow [2021-03-25 04:40:27,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 68 transitions, 446 flow, removed 8 selfloop flow, removed 2 redundant places. [2021-03-25 04:40:27,865 INFO L241 Difference]: Finished difference. Result has 71 places, 63 transitions, 451 flow [2021-03-25 04:40:27,865 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=451, PETRI_PLACES=71, PETRI_TRANSITIONS=63} [2021-03-25 04:40:27,865 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 12 predicate places. [2021-03-25 04:40:27,866 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:27,866 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 63 transitions, 451 flow [2021-03-25 04:40:27,866 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 63 transitions, 451 flow [2021-03-25 04:40:27,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 63 transitions, 451 flow [2021-03-25 04:40:28,001 INFO L129 PetriNetUnfolder]: 639/1223 cut-off events. [2021-03-25 04:40:28,001 INFO L130 PetriNetUnfolder]: For 5948/6590 co-relation queries the response was YES. [2021-03-25 04:40:28,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4608 conditions, 1223 events. 639/1223 cut-off events. For 5948/6590 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 8531 event pairs, 249 based on Foata normal form. 9/1089 useless extension candidates. Maximal degree in co-relation 4579. Up to 732 conditions per place. [2021-03-25 04:40:28,026 INFO L142 LiptonReduction]: Number of co-enabled transitions 1180 [2021-03-25 04:40:28,062 INFO L154 LiptonReduction]: Checked pairs total: 595 [2021-03-25 04:40:28,062 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:28,062 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 196 [2021-03-25 04:40:28,063 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 63 transitions, 451 flow [2021-03-25 04:40:28,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 165.75) internal successors, (663), 4 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:28,064 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:28,064 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:28,064 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 04:40:28,064 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:28,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:28,064 INFO L82 PathProgramCache]: Analyzing trace with hash 967004499, now seen corresponding path program 1 times [2021-03-25 04:40:28,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:28,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746845379] [2021-03-25 04:40:28,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:28,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:28,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:28,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:28,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:28,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:28,123 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:40:28,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:40:28,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:28,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:40:28,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:40:28,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746845379] [2021-03-25 04:40:28,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:28,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:40:28,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45716833] [2021-03-25 04:40:28,131 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:40:28,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:28,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:40:28,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:40:28,133 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 202 [2021-03-25 04:40:28,134 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 63 transitions, 451 flow. Second operand has 5 states, 5 states have (on average 165.8) internal successors, (829), 5 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:28,134 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:28,134 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 202 [2021-03-25 04:40:28,134 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:28,358 INFO L129 PetriNetUnfolder]: 584/1160 cut-off events. [2021-03-25 04:40:28,358 INFO L130 PetriNetUnfolder]: For 4562/7719 co-relation queries the response was YES. [2021-03-25 04:40:28,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4779 conditions, 1160 events. 584/1160 cut-off events. For 4562/7719 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 7944 event pairs, 71 based on Foata normal form. 308/1316 useless extension candidates. Maximal degree in co-relation 4748. Up to 777 conditions per place. [2021-03-25 04:40:28,373 INFO L132 encePairwiseOnDemand]: 195/202 looper letters, 14 selfloop transitions, 19 changer transitions 0/77 dead transitions. [2021-03-25 04:40:28,373 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 77 transitions, 584 flow [2021-03-25 04:40:28,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:40:28,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:40:28,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1189 transitions. [2021-03-25 04:40:28,377 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8408769448373409 [2021-03-25 04:40:28,377 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1189 transitions. [2021-03-25 04:40:28,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1189 transitions. [2021-03-25 04:40:28,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:28,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1189 transitions. [2021-03-25 04:40:28,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 169.85714285714286) internal successors, (1189), 7 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:28,382 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 202.0) internal successors, (1616), 8 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:28,383 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 202.0) internal successors, (1616), 8 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:28,383 INFO L185 Difference]: Start difference. First operand has 71 places, 63 transitions, 451 flow. Second operand 7 states and 1189 transitions. [2021-03-25 04:40:28,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 77 transitions, 584 flow [2021-03-25 04:40:28,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 77 transitions, 579 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:40:28,390 INFO L241 Difference]: Finished difference. Result has 79 places, 71 transitions, 571 flow [2021-03-25 04:40:28,390 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=433, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=571, PETRI_PLACES=79, PETRI_TRANSITIONS=71} [2021-03-25 04:40:28,390 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 20 predicate places. [2021-03-25 04:40:28,390 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:28,390 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 571 flow [2021-03-25 04:40:28,390 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 71 transitions, 571 flow [2021-03-25 04:40:28,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 571 flow [2021-03-25 04:40:28,494 INFO L129 PetriNetUnfolder]: 438/939 cut-off events. [2021-03-25 04:40:28,494 INFO L130 PetriNetUnfolder]: For 5709/6860 co-relation queries the response was YES. [2021-03-25 04:40:28,501 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4646 conditions, 939 events. 438/939 cut-off events. For 5709/6860 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 6487 event pairs, 67 based on Foata normal form. 32/887 useless extension candidates. Maximal degree in co-relation 4613. Up to 640 conditions per place. [2021-03-25 04:40:28,515 INFO L142 LiptonReduction]: Number of co-enabled transitions 1418 [2021-03-25 04:40:28,530 INFO L154 LiptonReduction]: Checked pairs total: 765 [2021-03-25 04:40:28,530 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:28,530 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 140 [2021-03-25 04:40:28,530 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 71 transitions, 571 flow [2021-03-25 04:40:28,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 165.8) internal successors, (829), 5 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:28,531 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:28,531 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:28,531 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 04:40:28,531 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:28,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:28,531 INFO L82 PathProgramCache]: Analyzing trace with hash -716899297, now seen corresponding path program 1 times [2021-03-25 04:40:28,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:28,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658571675] [2021-03-25 04:40:28,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:28,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:28,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:28,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:28,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:28,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:28,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:28,591 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:40:28,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:40:28,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:28,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:40:28,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:40:28,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658571675] [2021-03-25 04:40:28,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:28,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:40:28,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644432035] [2021-03-25 04:40:28,599 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:40:28,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:28,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:40:28,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:40:28,600 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 202 [2021-03-25 04:40:28,601 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 71 transitions, 571 flow. Second operand has 6 states, 6 states have (on average 165.83333333333334) internal successors, (995), 6 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:28,601 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:28,601 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 202 [2021-03-25 04:40:28,601 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:28,801 INFO L129 PetriNetUnfolder]: 473/965 cut-off events. [2021-03-25 04:40:28,801 INFO L130 PetriNetUnfolder]: For 5597/13457 co-relation queries the response was YES. [2021-03-25 04:40:28,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5060 conditions, 965 events. 473/965 cut-off events. For 5597/13457 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 6522 event pairs, 8 based on Foata normal form. 476/1304 useless extension candidates. Maximal degree in co-relation 5025. Up to 723 conditions per place. [2021-03-25 04:40:28,815 INFO L132 encePairwiseOnDemand]: 195/202 looper letters, 10 selfloop transitions, 28 changer transitions 4/84 dead transitions. [2021-03-25 04:40:28,816 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 84 transitions, 757 flow [2021-03-25 04:40:28,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 04:40:28,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 04:40:28,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1529 transitions. [2021-03-25 04:40:28,820 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.841034103410341 [2021-03-25 04:40:28,820 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1529 transitions. [2021-03-25 04:40:28,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1529 transitions. [2021-03-25 04:40:28,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:28,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1529 transitions. [2021-03-25 04:40:28,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 169.88888888888889) internal successors, (1529), 9 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:28,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 202.0) internal successors, (2020), 10 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:28,827 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 202.0) internal successors, (2020), 10 states have internal predecessors, (2020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:28,827 INFO L185 Difference]: Start difference. First operand has 79 places, 71 transitions, 571 flow. Second operand 9 states and 1529 transitions. [2021-03-25 04:40:28,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 84 transitions, 757 flow [2021-03-25 04:40:28,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 84 transitions, 693 flow, removed 17 selfloop flow, removed 5 redundant places. [2021-03-25 04:40:28,853 INFO L241 Difference]: Finished difference. Result has 85 places, 77 transitions, 655 flow [2021-03-25 04:40:28,853 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=655, PETRI_PLACES=85, PETRI_TRANSITIONS=77} [2021-03-25 04:40:28,853 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 26 predicate places. [2021-03-25 04:40:28,853 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:28,853 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 77 transitions, 655 flow [2021-03-25 04:40:28,853 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 77 transitions, 655 flow [2021-03-25 04:40:28,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 77 transitions, 655 flow [2021-03-25 04:40:28,926 INFO L129 PetriNetUnfolder]: 299/700 cut-off events. [2021-03-25 04:40:28,926 INFO L130 PetriNetUnfolder]: For 4147/4443 co-relation queries the response was YES. [2021-03-25 04:40:28,932 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3562 conditions, 700 events. 299/700 cut-off events. For 4147/4443 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 4903 event pairs, 9 based on Foata normal form. 5/637 useless extension candidates. Maximal degree in co-relation 3527. Up to 381 conditions per place. [2021-03-25 04:40:28,942 INFO L142 LiptonReduction]: Number of co-enabled transitions 1520 [2021-03-25 04:40:29,022 INFO L154 LiptonReduction]: Checked pairs total: 1709 [2021-03-25 04:40:29,022 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 04:40:29,022 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 169 [2021-03-25 04:40:29,022 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 74 transitions, 629 flow [2021-03-25 04:40:29,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 165.83333333333334) internal successors, (995), 6 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:29,023 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:29,023 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:29,023 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 04:40:29,023 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:29,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:29,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1799961108, now seen corresponding path program 1 times [2021-03-25 04:40:29,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:29,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050568545] [2021-03-25 04:40:29,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:29,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:29,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:29,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:40:29,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:29,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:29,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:29,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:29,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:40:29,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050568545] [2021-03-25 04:40:29,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:29,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:40:29,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929513972] [2021-03-25 04:40:29,102 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:40:29,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:29,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:40:29,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:40:29,104 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 202 [2021-03-25 04:40:29,104 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 74 transitions, 629 flow. Second operand has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:29,105 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:29,105 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 202 [2021-03-25 04:40:29,105 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:29,217 INFO L129 PetriNetUnfolder]: 254/604 cut-off events. [2021-03-25 04:40:29,217 INFO L130 PetriNetUnfolder]: For 4046/4368 co-relation queries the response was YES. [2021-03-25 04:40:29,221 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2891 conditions, 604 events. 254/604 cut-off events. For 4046/4368 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3624 event pairs, 14 based on Foata normal form. 16/555 useless extension candidates. Maximal degree in co-relation 2854. Up to 328 conditions per place. [2021-03-25 04:40:29,225 INFO L132 encePairwiseOnDemand]: 199/202 looper letters, 4 selfloop transitions, 2 changer transitions 0/64 dead transitions. [2021-03-25 04:40:29,225 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 64 transitions, 533 flow [2021-03-25 04:40:29,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:40:29,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:40:29,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 715 transitions. [2021-03-25 04:40:29,228 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8849009900990099 [2021-03-25 04:40:29,228 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 715 transitions. [2021-03-25 04:40:29,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 715 transitions. [2021-03-25 04:40:29,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:29,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 715 transitions. [2021-03-25 04:40:29,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 178.75) internal successors, (715), 4 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:29,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:29,243 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:29,243 INFO L185 Difference]: Start difference. First operand has 85 places, 74 transitions, 629 flow. Second operand 4 states and 715 transitions. [2021-03-25 04:40:29,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 64 transitions, 533 flow [2021-03-25 04:40:29,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 64 transitions, 463 flow, removed 26 selfloop flow, removed 8 redundant places. [2021-03-25 04:40:29,255 INFO L241 Difference]: Finished difference. Result has 74 places, 63 transitions, 440 flow [2021-03-25 04:40:29,255 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=440, PETRI_PLACES=74, PETRI_TRANSITIONS=63} [2021-03-25 04:40:29,255 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 15 predicate places. [2021-03-25 04:40:29,255 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:29,255 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 63 transitions, 440 flow [2021-03-25 04:40:29,256 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 63 transitions, 440 flow [2021-03-25 04:40:29,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 63 transitions, 440 flow [2021-03-25 04:40:29,312 INFO L129 PetriNetUnfolder]: 243/580 cut-off events. [2021-03-25 04:40:29,312 INFO L130 PetriNetUnfolder]: For 1898/2022 co-relation queries the response was YES. [2021-03-25 04:40:29,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2123 conditions, 580 events. 243/580 cut-off events. For 1898/2022 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3591 event pairs, 16 based on Foata normal form. 5/524 useless extension candidates. Maximal degree in co-relation 2092. Up to 218 conditions per place. [2021-03-25 04:40:29,323 INFO L142 LiptonReduction]: Number of co-enabled transitions 1008 [2021-03-25 04:40:29,349 INFO L154 LiptonReduction]: Checked pairs total: 356 [2021-03-25 04:40:29,349 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:29,349 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 94 [2021-03-25 04:40:29,352 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 63 transitions, 440 flow [2021-03-25 04:40:29,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 178.0) internal successors, (712), 4 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:29,353 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:29,353 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:29,353 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 04:40:29,353 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:29,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:29,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1166974292, now seen corresponding path program 2 times [2021-03-25 04:40:29,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:29,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169094491] [2021-03-25 04:40:29,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:29,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:29,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:40:29,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:29,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:29,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:29,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:29,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:40:29,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169094491] [2021-03-25 04:40:29,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:29,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:40:29,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313554189] [2021-03-25 04:40:29,426 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:40:29,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:29,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:40:29,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:40:29,427 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 202 [2021-03-25 04:40:29,428 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 63 transitions, 440 flow. Second operand has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:29,428 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:29,428 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 202 [2021-03-25 04:40:29,428 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:29,559 INFO L129 PetriNetUnfolder]: 492/1139 cut-off events. [2021-03-25 04:40:29,559 INFO L130 PetriNetUnfolder]: For 3951/4244 co-relation queries the response was YES. [2021-03-25 04:40:29,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4056 conditions, 1139 events. 492/1139 cut-off events. For 3951/4244 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 8098 event pairs, 26 based on Foata normal form. 19/1037 useless extension candidates. Maximal degree in co-relation 4023. Up to 461 conditions per place. [2021-03-25 04:40:29,571 INFO L132 encePairwiseOnDemand]: 199/202 looper letters, 4 selfloop transitions, 2 changer transitions 0/65 dead transitions. [2021-03-25 04:40:29,571 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 65 transitions, 478 flow [2021-03-25 04:40:29,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:40:29,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:40:29,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 719 transitions. [2021-03-25 04:40:29,574 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8898514851485149 [2021-03-25 04:40:29,574 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 719 transitions. [2021-03-25 04:40:29,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 719 transitions. [2021-03-25 04:40:29,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:29,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 719 transitions. [2021-03-25 04:40:29,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 179.75) internal successors, (719), 4 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:29,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:29,577 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:29,577 INFO L185 Difference]: Start difference. First operand has 74 places, 63 transitions, 440 flow. Second operand 4 states and 719 transitions. [2021-03-25 04:40:29,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 65 transitions, 478 flow [2021-03-25 04:40:29,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 65 transitions, 477 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:40:29,592 INFO L241 Difference]: Finished difference. Result has 78 places, 64 transitions, 452 flow [2021-03-25 04:40:29,592 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=452, PETRI_PLACES=78, PETRI_TRANSITIONS=64} [2021-03-25 04:40:29,592 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 19 predicate places. [2021-03-25 04:40:29,593 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:29,593 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 64 transitions, 452 flow [2021-03-25 04:40:29,593 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 64 transitions, 452 flow [2021-03-25 04:40:29,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 64 transitions, 452 flow [2021-03-25 04:40:29,699 INFO L129 PetriNetUnfolder]: 469/1091 cut-off events. [2021-03-25 04:40:29,700 INFO L130 PetriNetUnfolder]: For 3136/3424 co-relation queries the response was YES. [2021-03-25 04:40:29,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3930 conditions, 1091 events. 469/1091 cut-off events. For 3136/3424 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 7855 event pairs, 28 based on Foata normal form. 9/981 useless extension candidates. Maximal degree in co-relation 3897. Up to 433 conditions per place. [2021-03-25 04:40:29,722 INFO L142 LiptonReduction]: Number of co-enabled transitions 1046 [2021-03-25 04:40:29,741 INFO L154 LiptonReduction]: Checked pairs total: 93 [2021-03-25 04:40:29,741 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:29,741 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 148 [2021-03-25 04:40:29,741 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 64 transitions, 452 flow [2021-03-25 04:40:29,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:29,742 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:29,742 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:29,742 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 04:40:29,742 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:29,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:29,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1318690134, now seen corresponding path program 3 times [2021-03-25 04:40:29,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:29,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215513216] [2021-03-25 04:40:29,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:29,847 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.0 percent of original size [2021-03-25 04:40:29,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-25 04:40:29,883 INFO L142 QuantifierPusher]: treesize reduction 1, result has 98.1 percent of original size [2021-03-25 04:40:29,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 04:40:29,917 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.8 percent of original size [2021-03-25 04:40:29,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 04:40:29,948 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.7 percent of original size [2021-03-25 04:40:29,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 04:40:29,981 INFO L142 QuantifierPusher]: treesize reduction 8, result has 63.6 percent of original size [2021-03-25 04:40:29,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 04:40:29,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:40:29,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215513216] [2021-03-25 04:40:29,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:29,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:40:29,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650072061] [2021-03-25 04:40:29,994 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:40:29,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:29,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:40:29,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:40:29,996 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 202 [2021-03-25 04:40:29,997 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 64 transitions, 452 flow. Second operand has 7 states, 7 states have (on average 152.85714285714286) internal successors, (1070), 7 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:29,997 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:29,997 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 202 [2021-03-25 04:40:29,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:30,257 INFO L129 PetriNetUnfolder]: 538/1198 cut-off events. [2021-03-25 04:40:30,257 INFO L130 PetriNetUnfolder]: For 3813/4651 co-relation queries the response was YES. [2021-03-25 04:40:30,265 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4670 conditions, 1198 events. 538/1198 cut-off events. For 3813/4651 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 8390 event pairs, 50 based on Foata normal form. 48/1109 useless extension candidates. Maximal degree in co-relation 4635. Up to 460 conditions per place. [2021-03-25 04:40:30,271 INFO L132 encePairwiseOnDemand]: 197/202 looper letters, 21 selfloop transitions, 10 changer transitions 0/67 dead transitions. [2021-03-25 04:40:30,271 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 67 transitions, 528 flow [2021-03-25 04:40:30,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:40:30,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:40:30,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 625 transitions. [2021-03-25 04:40:30,273 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7735148514851485 [2021-03-25 04:40:30,273 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 625 transitions. [2021-03-25 04:40:30,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 625 transitions. [2021-03-25 04:40:30,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:30,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 625 transitions. [2021-03-25 04:40:30,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 156.25) internal successors, (625), 4 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:30,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:30,277 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 202.0) internal successors, (1010), 5 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:30,278 INFO L185 Difference]: Start difference. First operand has 78 places, 64 transitions, 452 flow. Second operand 4 states and 625 transitions. [2021-03-25 04:40:30,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 67 transitions, 528 flow [2021-03-25 04:40:30,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 67 transitions, 527 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:40:30,295 INFO L241 Difference]: Finished difference. Result has 81 places, 64 transitions, 481 flow [2021-03-25 04:40:30,295 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=481, PETRI_PLACES=81, PETRI_TRANSITIONS=64} [2021-03-25 04:40:30,295 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 22 predicate places. [2021-03-25 04:40:30,295 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:30,296 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 64 transitions, 481 flow [2021-03-25 04:40:30,296 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 64 transitions, 481 flow [2021-03-25 04:40:30,296 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 64 transitions, 481 flow [2021-03-25 04:40:30,419 INFO L129 PetriNetUnfolder]: 495/1132 cut-off events. [2021-03-25 04:40:30,419 INFO L130 PetriNetUnfolder]: For 3296/3549 co-relation queries the response was YES. [2021-03-25 04:40:30,427 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4110 conditions, 1132 events. 495/1132 cut-off events. For 3296/3549 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 8226 event pairs, 27 based on Foata normal form. 12/1013 useless extension candidates. Maximal degree in co-relation 4075. Up to 469 conditions per place. [2021-03-25 04:40:30,439 INFO L142 LiptonReduction]: Number of co-enabled transitions 1046 [2021-03-25 04:40:30,451 INFO L154 LiptonReduction]: Checked pairs total: 93 [2021-03-25 04:40:30,451 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:40:30,451 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 156 [2021-03-25 04:40:30,452 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 64 transitions, 481 flow [2021-03-25 04:40:30,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 152.85714285714286) internal successors, (1070), 7 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:30,452 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:30,452 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:30,452 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-25 04:40:30,452 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:30,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:30,453 INFO L82 PathProgramCache]: Analyzing trace with hash -653981123, now seen corresponding path program 1 times [2021-03-25 04:40:30,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:30,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45617563] [2021-03-25 04:40:30,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:40:30,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:30,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:30,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:30,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:30,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:30,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:30,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:30,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:40:30,529 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 04:40:30,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 04:40:30,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:40:30,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:40:30,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:40:30,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45617563] [2021-03-25 04:40:30,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:40:30,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 04:40:30,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254012250] [2021-03-25 04:40:30,541 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:40:30,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:40:30,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:40:30,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:40:30,542 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 202 [2021-03-25 04:40:30,543 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 64 transitions, 481 flow. Second operand has 7 states, 7 states have (on average 165.85714285714286) internal successors, (1161), 7 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:30,543 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:40:30,543 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 202 [2021-03-25 04:40:30,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:40:30,802 INFO L129 PetriNetUnfolder]: 1038/1903 cut-off events. [2021-03-25 04:40:30,802 INFO L130 PetriNetUnfolder]: For 3557/5946 co-relation queries the response was YES. [2021-03-25 04:40:30,815 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7343 conditions, 1903 events. 1038/1903 cut-off events. For 3557/5946 co-relation queries the response was YES. Maximal size of possible extension queue 273. Compared 12918 event pairs, 8 based on Foata normal form. 336/1871 useless extension candidates. Maximal degree in co-relation 7306. Up to 745 conditions per place. [2021-03-25 04:40:30,826 INFO L132 encePairwiseOnDemand]: 195/202 looper letters, 6 selfloop transitions, 18 changer transitions 5/73 dead transitions. [2021-03-25 04:40:30,827 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 73 transitions, 595 flow [2021-03-25 04:40:30,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 04:40:30,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 04:40:30,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1351 transitions. [2021-03-25 04:40:30,831 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8360148514851485 [2021-03-25 04:40:30,831 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1351 transitions. [2021-03-25 04:40:30,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1351 transitions. [2021-03-25 04:40:30,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:40:30,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1351 transitions. [2021-03-25 04:40:30,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 168.875) internal successors, (1351), 8 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:30,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 202.0) internal successors, (1818), 9 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:30,839 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 202.0) internal successors, (1818), 9 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:30,839 INFO L185 Difference]: Start difference. First operand has 81 places, 64 transitions, 481 flow. Second operand 8 states and 1351 transitions. [2021-03-25 04:40:30,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 73 transitions, 595 flow [2021-03-25 04:40:30,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 73 transitions, 529 flow, removed 18 selfloop flow, removed 5 redundant places. [2021-03-25 04:40:30,879 INFO L241 Difference]: Finished difference. Result has 86 places, 65 transitions, 483 flow [2021-03-25 04:40:30,879 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=483, PETRI_PLACES=86, PETRI_TRANSITIONS=65} [2021-03-25 04:40:30,879 INFO L343 CegarLoopForPetriNet]: 59 programPoint places, 27 predicate places. [2021-03-25 04:40:30,879 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:40:30,879 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 65 transitions, 483 flow [2021-03-25 04:40:30,879 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 65 transitions, 483 flow [2021-03-25 04:40:30,880 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 65 transitions, 483 flow [2021-03-25 04:40:30,968 INFO L129 PetriNetUnfolder]: 398/939 cut-off events. [2021-03-25 04:40:30,968 INFO L130 PetriNetUnfolder]: For 2514/2896 co-relation queries the response was YES. [2021-03-25 04:40:30,975 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3935 conditions, 939 events. 398/939 cut-off events. For 2514/2896 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 6797 event pairs, 8 based on Foata normal form. 9/837 useless extension candidates. Maximal degree in co-relation 3899. Up to 365 conditions per place. [2021-03-25 04:40:30,985 INFO L142 LiptonReduction]: Number of co-enabled transitions 1006 [2021-03-25 04:40:31,334 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-03-25 04:40:31,505 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-03-25 04:40:32,149 WARN L205 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 196 [2021-03-25 04:40:32,381 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2021-03-25 04:40:33,740 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 350 DAG size of output: 276 [2021-03-25 04:40:34,237 WARN L205 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-03-25 04:40:34,247 INFO L154 LiptonReduction]: Checked pairs total: 366 [2021-03-25 04:40:34,248 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 04:40:34,248 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3369 [2021-03-25 04:40:34,248 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 62 transitions, 467 flow [2021-03-25 04:40:34,248 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 165.85714285714286) internal successors, (1161), 7 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 04:40:34,248 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:40:34,249 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:40:34,249 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-25 04:40:34,249 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:40:34,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:40:34,249 INFO L82 PathProgramCache]: Analyzing trace with hash 679803680, now seen corresponding path program 1 times [2021-03-25 04:40:34,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:40:34,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458369504] [2021-03-25 04:40:34,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:40:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:40:34,292 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:40:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:40:34,336 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:40:34,387 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:40:34,387 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:40:34,388 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-25 04:40:34,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 04:40:34 BasicIcfg [2021-03-25 04:40:34,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 04:40:34,517 INFO L168 Benchmark]: Toolchain (without parser) took 26178.93 ms. Allocated memory was 255.9 MB in the beginning and 641.7 MB in the end (delta: 385.9 MB). Free memory was 233.2 MB in the beginning and 402.3 MB in the end (delta: -169.1 MB). Peak memory consumption was 215.3 MB. Max. memory is 16.0 GB. [2021-03-25 04:40:34,517 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 04:40:34,517 INFO L168 Benchmark]: CACSL2BoogieTranslator took 497.56 ms. Allocated memory was 255.9 MB in the beginning and 356.5 MB in the end (delta: 100.7 MB). Free memory was 233.2 MB in the beginning and 315.6 MB in the end (delta: -82.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-25 04:40:34,518 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.94 ms. Allocated memory is still 356.5 MB. Free memory was 315.6 MB in the beginning and 312.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:40:34,518 INFO L168 Benchmark]: Boogie Preprocessor took 32.97 ms. Allocated memory is still 356.5 MB. Free memory was 312.6 MB in the beginning and 310.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:40:34,518 INFO L168 Benchmark]: RCFGBuilder took 1982.64 ms. Allocated memory is still 356.5 MB. Free memory was 310.5 MB in the beginning and 319.0 MB in the end (delta: -8.5 MB). Peak memory consumption was 62.5 MB. Max. memory is 16.0 GB. [2021-03-25 04:40:34,519 INFO L168 Benchmark]: TraceAbstraction took 23611.89 ms. Allocated memory was 356.5 MB in the beginning and 641.7 MB in the end (delta: 285.2 MB). Free memory was 317.9 MB in the beginning and 402.3 MB in the end (delta: -84.4 MB). Peak memory consumption was 199.8 MB. Max. memory is 16.0 GB. [2021-03-25 04:40:34,521 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 497.56 ms. Allocated memory was 255.9 MB in the beginning and 356.5 MB in the end (delta: 100.7 MB). Free memory was 233.2 MB in the beginning and 315.6 MB in the end (delta: -82.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 46.94 ms. Allocated memory is still 356.5 MB. Free memory was 315.6 MB in the beginning and 312.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.97 ms. Allocated memory is still 356.5 MB. Free memory was 312.6 MB in the beginning and 310.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1982.64 ms. Allocated memory is still 356.5 MB. Free memory was 310.5 MB in the beginning and 319.0 MB in the end (delta: -8.5 MB). Peak memory consumption was 62.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 23611.89 ms. Allocated memory was 356.5 MB in the beginning and 641.7 MB in the end (delta: 285.2 MB). Free memory was 317.9 MB in the beginning and 402.3 MB in the end (delta: -84.4 MB). Peak memory consumption was 199.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8772.9ms, 123 PlacesBefore, 59 PlacesAfterwards, 112 TransitionsBefore, 47 TransitionsAfterwards, 2630 CoEnabledTransitionPairs, 6 FixpointIterations, 29 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 74 TotalNumberOfCompositions, 5205 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2343, positive: 2219, positive conditional: 0, positive unconditional: 2219, negative: 124, negative conditional: 0, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1286, positive: 1252, positive conditional: 0, positive unconditional: 1252, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1286, positive: 1252, positive conditional: 0, positive unconditional: 1252, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2343, positive: 967, positive conditional: 0, positive unconditional: 967, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 1286, unknown conditional: 0, unknown unconditional: 1286] , Statistics on independence cache: Total cache size (in pairs): 139, Positive cache size: 120, Positive conditional cache size: 0, Positive unconditional cache size: 120, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4354.5ms, 55 PlacesBefore, 39 PlacesAfterwards, 40 TransitionsBefore, 28 TransitionsAfterwards, 434 CoEnabledTransitionPairs, 5 FixpointIterations, 11 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 12 TotalNumberOfCompositions, 2544 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 652, positive: 513, positive conditional: 0, positive unconditional: 513, negative: 139, negative conditional: 0, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 32, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 32, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 652, positive: 489, positive conditional: 0, positive unconditional: 489, negative: 131, negative conditional: 0, negative unconditional: 131, unknown: 32, unknown conditional: 0, unknown unconditional: 32] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 128, Positive conditional cache size: 0, Positive unconditional cache size: 128, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.5ms, 40 PlacesBefore, 40 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 436 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 466 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 137, positive: 113, positive conditional: 0, positive unconditional: 113, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 137, positive: 109, positive conditional: 0, positive unconditional: 109, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 153, Positive cache size: 132, Positive conditional cache size: 0, Positive unconditional cache size: 132, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.7ms, 42 PlacesBefore, 42 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 484 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 345 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 78, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 78, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 159, Positive cache size: 136, Positive conditional cache size: 0, Positive unconditional cache size: 136, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.7ms, 44 PlacesBefore, 44 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 484 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 447 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 126, positive: 105, positive conditional: 0, positive unconditional: 105, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 126, positive: 97, positive conditional: 0, positive unconditional: 97, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 9, unknown conditional: 0, unknown unconditional: 9] , Statistics on independence cache: Total cache size (in pairs): 168, Positive cache size: 144, Positive conditional cache size: 0, Positive unconditional cache size: 144, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.0ms, 46 PlacesBefore, 46 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 482 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 428 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 98, positive: 78, positive conditional: 0, positive unconditional: 78, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 98, positive: 76, positive conditional: 0, positive unconditional: 76, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 170, Positive cache size: 146, Positive conditional cache size: 0, Positive unconditional cache size: 146, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.4ms, 48 PlacesBefore, 48 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 540 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 375 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 139, positive: 123, positive conditional: 0, positive unconditional: 123, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 139, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 174, Positive cache size: 149, Positive conditional cache size: 0, Positive unconditional cache size: 149, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.4ms, 51 PlacesBefore, 51 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 610 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 408 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 143, positive: 127, positive conditional: 0, positive unconditional: 127, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 143, positive: 126, positive conditional: 0, positive unconditional: 126, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 176, Positive cache size: 150, Positive conditional cache size: 0, Positive unconditional cache size: 150, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.5ms, 55 PlacesBefore, 55 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 640 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 456 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 156, positive: 139, positive conditional: 0, positive unconditional: 139, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 156, positive: 139, positive conditional: 0, positive unconditional: 139, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 176, Positive cache size: 150, Positive conditional cache size: 0, Positive unconditional cache size: 150, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.9ms, 58 PlacesBefore, 58 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 670 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 569 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 147, positive: 125, positive conditional: 0, positive unconditional: 125, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 147, positive: 125, positive conditional: 0, positive unconditional: 125, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 176, Positive cache size: 150, Positive conditional cache size: 0, Positive unconditional cache size: 150, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 50.8ms, 63 PlacesBefore, 63 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 774 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 631 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 198, positive: 177, positive conditional: 0, positive unconditional: 177, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 198, positive: 174, positive conditional: 0, positive unconditional: 174, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 179, Positive cache size: 153, Positive conditional cache size: 0, Positive unconditional cache size: 153, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 66.6ms, 66 PlacesBefore, 66 PlacesAfterwards, 54 TransitionsBefore, 54 TransitionsAfterwards, 842 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 760 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 170, positive: 145, positive conditional: 0, positive unconditional: 145, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 170, positive: 143, positive conditional: 0, positive unconditional: 143, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 181, Positive cache size: 155, Positive conditional cache size: 0, Positive unconditional cache size: 155, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 196.0ms, 71 PlacesBefore, 71 PlacesAfterwards, 63 TransitionsBefore, 63 TransitionsAfterwards, 1180 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 595 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 152, positive: 137, positive conditional: 0, positive unconditional: 137, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 152, positive: 134, positive conditional: 0, positive unconditional: 134, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 184, Positive cache size: 158, Positive conditional cache size: 0, Positive unconditional cache size: 158, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 139.6ms, 79 PlacesBefore, 79 PlacesAfterwards, 71 TransitionsBefore, 71 TransitionsAfterwards, 1418 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 765 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 184, positive: 167, positive conditional: 0, positive unconditional: 167, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 184, positive: 167, positive conditional: 0, positive unconditional: 167, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 184, Positive cache size: 158, Positive conditional cache size: 0, Positive unconditional cache size: 158, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 168.7ms, 85 PlacesBefore, 85 PlacesAfterwards, 77 TransitionsBefore, 74 TransitionsAfterwards, 1520 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 1709 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 595, positive: 561, positive conditional: 0, positive unconditional: 561, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 595, positive: 555, positive conditional: 0, positive unconditional: 555, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 177, Positive cache size: 152, Positive conditional cache size: 0, Positive unconditional cache size: 152, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 93.6ms, 74 PlacesBefore, 74 PlacesAfterwards, 63 TransitionsBefore, 63 TransitionsAfterwards, 1008 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 356 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 118, positive: 108, positive conditional: 0, positive unconditional: 108, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 118, positive: 108, positive conditional: 0, positive unconditional: 108, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 177, Positive cache size: 152, Positive conditional cache size: 0, Positive unconditional cache size: 152, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 147.9ms, 78 PlacesBefore, 78 PlacesAfterwards, 64 TransitionsBefore, 64 TransitionsAfterwards, 1046 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 93 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 60, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 60, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 177, Positive cache size: 152, Positive conditional cache size: 0, Positive unconditional cache size: 152, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 155.5ms, 81 PlacesBefore, 81 PlacesAfterwards, 64 TransitionsBefore, 64 TransitionsAfterwards, 1046 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 93 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 51, positive conditional: 0, positive unconditional: 51, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 54, positive: 51, positive conditional: 0, positive unconditional: 51, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 177, Positive cache size: 152, Positive conditional cache size: 0, Positive unconditional cache size: 152, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3368.1ms, 86 PlacesBefore, 82 PlacesAfterwards, 65 TransitionsBefore, 62 TransitionsAfterwards, 1006 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 366 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 234, positive: 222, positive conditional: 0, positive unconditional: 222, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 234, positive: 215, positive conditional: 0, positive unconditional: 215, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 7, unknown conditional: 0, unknown unconditional: 7] , Statistics on independence cache: Total cache size (in pairs): 150, Positive cache size: 136, Positive conditional cache size: 0, Positive unconditional cache size: 136, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int __unbuffered_p3_EBX = 0; [L718] 0 int a = 0; [L719] 0 _Bool main$tmp_guard0; [L720] 0 _Bool main$tmp_guard1; [L722] 0 int x = 0; [L724] 0 int y = 0; [L725] 0 _Bool y$flush_delayed; [L726] 0 int y$mem_tmp; [L727] 0 _Bool y$r_buff0_thd0; [L728] 0 _Bool y$r_buff0_thd1; [L729] 0 _Bool y$r_buff0_thd2; [L730] 0 _Bool y$r_buff0_thd3; [L731] 0 _Bool y$r_buff0_thd4; [L732] 0 _Bool y$r_buff1_thd0; [L733] 0 _Bool y$r_buff1_thd1; [L734] 0 _Bool y$r_buff1_thd2; [L735] 0 _Bool y$r_buff1_thd3; [L736] 0 _Bool y$r_buff1_thd4; [L737] 0 _Bool y$read_delayed; [L738] 0 int *y$read_delayed_var; [L739] 0 int y$w_buff0; [L740] 0 _Bool y$w_buff0_used; [L741] 0 int y$w_buff1; [L742] 0 _Bool y$w_buff1_used; [L744] 0 int z = 0; [L745] 0 _Bool weak$$choice0; [L746] 0 _Bool weak$$choice2; [L846] 0 pthread_t t773; [L847] FCALL, FORK 0 pthread_create(&t773, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L848] 0 pthread_t t774; [L849] FCALL, FORK 0 pthread_create(&t774, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L850] 0 pthread_t t775; [L851] FCALL, FORK 0 pthread_create(&t775, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L785] 3 y$w_buff1 = y$w_buff0 [L786] 3 y$w_buff0 = 2 [L787] 3 y$w_buff1_used = y$w_buff0_used [L788] 3 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 3 !(!expression) [L790] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L791] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L792] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L793] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L794] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L795] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L798] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L852] 0 pthread_t t776; [L853] FCALL, FORK 0 pthread_create(&t776, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L815] 4 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L818] 4 __unbuffered_p3_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L821] 4 __unbuffered_p3_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L750] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L753] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L765] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L768] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L772] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L772] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L773] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L773] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L774] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L774] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L775] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L775] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L801] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L801] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L802] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L802] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L803] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L803] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L804] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L804] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L805] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L805] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L758] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L760] 1 return 0; [L778] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L780] 2 return 0; [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L810] 3 return 0; [L824] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L824] EXPR 4 y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y [L824] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L824] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L825] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L825] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L826] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L826] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L827] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L827] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L828] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 [L828] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 [L831] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L833] 4 return 0; [L855] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L859] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L859] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L859] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L859] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L860] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L860] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L861] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L861] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L862] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L862] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L863] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L863] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L866] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L867] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L868] 0 y$flush_delayed = weak$$choice2 [L869] 0 y$mem_tmp = y [L870] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L870] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L871] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L871] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L872] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L872] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L873] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L873] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L874] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L874] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L875] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L875] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L876] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L876] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L877] 0 main$tmp_guard1 = !(y == 2 && z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p3_EAX == 2 && __unbuffered_p3_EBX == 0) [L878] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L878] 0 y = y$flush_delayed ? y$mem_tmp : y [L879] 0 y$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p3_EAX=2, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 115 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 23346.9ms, OverallIterations: 19, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2879.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8851.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 81 SDtfs, 42 SDslu, 30 SDs, 0 SdLazy, 460 SolverSat, 124 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 517.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 656.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=655occurred in iteration=14, InterpolantAutomatonStates: 81, 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: 71.4ms SsaConstructionTime, 730.6ms SatisfiabilityAnalysisTime, 1500.9ms InterpolantComputationTime, 343 NumberOfCodeBlocks, 343 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 298 ConstructedInterpolants, 0 QuantifiedInterpolants, 2697 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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 incorrect! Received shutdown request...