/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/mix047_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 04:47:12,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 04:47:12,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 04:47:12,890 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 04:47:12,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 04:47:12,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 04:47:12,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 04:47:12,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 04:47:12,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 04:47:12,909 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 04:47:12,910 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 04:47:12,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 04:47:12,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 04:47:12,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 04:47:12,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 04:47:12,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 04:47:12,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 04:47:12,920 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 04:47:12,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 04:47:12,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 04:47:12,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 04:47:12,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 04:47:12,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 04:47:12,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 04:47:12,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 04:47:12,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 04:47:12,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 04:47:12,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 04:47:12,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 04:47:12,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 04:47:12,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 04:47:12,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 04:47:12,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 04:47:12,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 04:47:12,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 04:47:12,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 04:47:12,950 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 04:47:12,983 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 04:47:12,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 04:47:12,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 04:47:12,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 04:47:12,987 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 04:47:12,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 04:47:12,987 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 04:47:12,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 04:47:12,987 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 04:47:12,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 04:47:12,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 04:47:12,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 04:47:12,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 04:47:12,989 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 04:47:12,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 04:47:12,989 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 04:47:12,989 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 04:47:12,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 04:47:12,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 04:47:12,990 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 04:47:12,990 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 04:47:12,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 04:47:12,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 04:47:12,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 04:47:12,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 04:47:12,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 04:47:12,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 04:47:12,991 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 04:47:12,991 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 04:47:12,991 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 04:47:12,991 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 04:47:13,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 04:47:13,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 04:47:13,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 04:47:13,279 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 04:47:13,279 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 04:47:13,280 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix047_pso.opt.i [2021-03-25 04:47:13,334 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3490b63/cac4faf1ffd748228aff7d52597eda74/FLAG09c82eb3d [2021-03-25 04:47:13,901 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 04:47:13,901 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix047_pso.opt.i [2021-03-25 04:47:13,920 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3490b63/cac4faf1ffd748228aff7d52597eda74/FLAG09c82eb3d [2021-03-25 04:47:14,316 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3490b63/cac4faf1ffd748228aff7d52597eda74 [2021-03-25 04:47:14,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 04:47:14,321 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 04:47:14,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 04:47:14,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 04:47:14,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 04:47:14,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:47:14" (1/1) ... [2021-03-25 04:47:14,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27ceee96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:14, skipping insertion in model container [2021-03-25 04:47:14,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 04:47:14" (1/1) ... [2021-03-25 04:47:14,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 04:47:14,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 04:47:14,511 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/mix047_pso.opt.i[948,961] [2021-03-25 04:47:14,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:47:14,727 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 04:47:14,737 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/mix047_pso.opt.i[948,961] [2021-03-25 04:47:14,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 04:47:14,881 INFO L208 MainTranslator]: Completed translation [2021-03-25 04:47:14,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:14 WrapperNode [2021-03-25 04:47:14,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 04:47:14,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 04:47:14,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 04:47:14,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 04:47:14,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:14" (1/1) ... [2021-03-25 04:47:14,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:14" (1/1) ... [2021-03-25 04:47:14,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 04:47:14,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 04:47:14,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 04:47:14,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 04:47:14,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:14" (1/1) ... [2021-03-25 04:47:14,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:14" (1/1) ... [2021-03-25 04:47:14,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:14" (1/1) ... [2021-03-25 04:47:14,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:14" (1/1) ... [2021-03-25 04:47:14,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:14" (1/1) ... [2021-03-25 04:47:15,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:14" (1/1) ... [2021-03-25 04:47:15,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:14" (1/1) ... [2021-03-25 04:47:15,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 04:47:15,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 04:47:15,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 04:47:15,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 04:47:15,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:14" (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 04:47:15,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 04:47:15,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 04:47:15,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 04:47:15,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 04:47:15,099 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 04:47:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 04:47:15,100 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 04:47:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 04:47:15,100 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 04:47:15,100 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 04:47:15,101 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-25 04:47:15,101 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-25 04:47:15,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 04:47:15,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 04:47:15,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 04:47:15,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 04:47:15,102 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 04:47:16,733 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 04:47:16,733 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 04:47:16,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:47:16 BoogieIcfgContainer [2021-03-25 04:47:16,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 04:47:16,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 04:47:16,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 04:47:16,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 04:47:16,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 04:47:14" (1/3) ... [2021-03-25 04:47:16,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791fb396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:47:16, skipping insertion in model container [2021-03-25 04:47:16,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 04:47:14" (2/3) ... [2021-03-25 04:47:16,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@791fb396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 04:47:16, skipping insertion in model container [2021-03-25 04:47:16,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 04:47:16" (3/3) ... [2021-03-25 04:47:16,742 INFO L111 eAbstractionObserver]: Analyzing ICFG mix047_pso.opt.i [2021-03-25 04:47:16,747 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 04:47:16,751 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 04:47:16,752 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 04:47:16,794 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,794 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,794 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,794 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,795 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,795 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,795 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,795 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,795 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,795 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,796 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,796 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,797 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,797 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,797 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,797 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,797 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,797 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,797 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,798 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,799 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,799 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,799 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,800 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,800 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,800 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,800 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,800 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,801 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,801 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,801 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,801 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,801 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,801 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,801 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,802 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,802 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,802 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,802 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,803 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,803 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,803 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,803 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,803 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,804 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,804 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,804 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,804 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,805 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,805 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,805 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,805 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,805 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,805 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,805 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,806 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,806 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,806 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,806 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,807 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,807 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,807 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,807 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,807 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,807 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,808 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,808 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,808 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,808 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,809 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,809 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,809 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,810 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,810 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,810 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,810 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,811 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,811 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,811 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,811 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,814 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,814 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,816 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,816 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,817 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,817 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,819 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,820 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,821 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,822 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,823 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,823 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,823 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,828 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,830 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,830 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,830 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,830 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,830 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,830 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,831 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,831 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,831 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,831 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,831 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,831 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 04:47:16,832 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 04:47:16,848 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-25 04:47:16,874 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 04:47:16,875 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 04:47:16,875 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 04:47:16,875 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 04:47:16,875 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 04:47:16,875 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 04:47:16,875 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 04:47:16,875 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 04:47:16,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 116 transitions, 252 flow [2021-03-25 04:47:16,941 INFO L129 PetriNetUnfolder]: 2/112 cut-off events. [2021-03-25 04:47:16,941 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:47:16,953 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 85 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 04:47:16,953 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 116 transitions, 252 flow [2021-03-25 04:47:16,960 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 112 transitions, 236 flow [2021-03-25 04:47:16,962 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:16,969 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 112 transitions, 236 flow [2021-03-25 04:47:16,972 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 112 transitions, 236 flow [2021-03-25 04:47:16,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 236 flow [2021-03-25 04:47:17,009 INFO L129 PetriNetUnfolder]: 2/112 cut-off events. [2021-03-25 04:47:17,010 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:47:17,011 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 92 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 04:47:17,015 INFO L142 LiptonReduction]: Number of co-enabled transitions 2598 [2021-03-25 04:47:18,586 WARN L205 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-03-25 04:47:19,174 WARN L205 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 187 [2021-03-25 04:47:20,558 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 314 DAG size of output: 269 [2021-03-25 04:47:21,097 WARN L205 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2021-03-25 04:47:21,340 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 04:47:21,740 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 81 [2021-03-25 04:47:21,854 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-03-25 04:47:22,767 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-25 04:47:23,070 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-25 04:47:23,706 WARN L205 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-03-25 04:47:24,299 WARN L205 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2021-03-25 04:47:24,883 INFO L154 LiptonReduction]: Checked pairs total: 4306 [2021-03-25 04:47:24,883 INFO L156 LiptonReduction]: Total number of compositions: 75 [2021-03-25 04:47:24,885 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7924 [2021-03-25 04:47:24,893 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-03-25 04:47:24,894 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:47:24,894 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:24,894 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 04:47:24,895 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:24,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:24,899 INFO L82 PathProgramCache]: Analyzing trace with hash 316096465, now seen corresponding path program 1 times [2021-03-25 04:47:24,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:24,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671303828] [2021-03-25 04:47:24,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:25,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:25,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:47:25,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:25,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:25,169 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 04:47:25,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671303828] [2021-03-25 04:47:25,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:25,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:47:25,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800633380] [2021-03-25 04:47:25,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:47:25,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:25,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:47:25,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:47:25,190 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 191 [2021-03-25 04:47:25,195 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 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 04:47:25,195 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:25,195 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 191 [2021-03-25 04:47:25,196 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:25,292 INFO L129 PetriNetUnfolder]: 23/109 cut-off events. [2021-03-25 04:47:25,292 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:47:25,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 109 events. 23/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 410 event pairs, 3 based on Foata normal form. 6/108 useless extension candidates. Maximal degree in co-relation 150. Up to 37 conditions per place. [2021-03-25 04:47:25,294 INFO L132 encePairwiseOnDemand]: 187/191 looper letters, 7 selfloop transitions, 2 changer transitions 6/46 dead transitions. [2021-03-25 04:47:25,294 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 46 transitions, 126 flow [2021-03-25 04:47:25,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:47:25,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:47:25,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 521 transitions. [2021-03-25 04:47:25,307 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9092495636998255 [2021-03-25 04:47:25,307 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 521 transitions. [2021-03-25 04:47:25,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 521 transitions. [2021-03-25 04:47:25,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:25,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 521 transitions. [2021-03-25 04:47:25,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states 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 04:47:25,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states 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 04:47:25,322 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 191.0) internal successors, (764), 4 states have internal predecessors, (764), 0 states have call successors, (0), 0 states 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 04:47:25,324 INFO L185 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 521 transitions. [2021-03-25 04:47:25,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 46 transitions, 126 flow [2021-03-25 04:47:25,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 46 transitions, 122 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 04:47:25,328 INFO L241 Difference]: Finished difference. Result has 53 places, 37 transitions, 86 flow [2021-03-25 04:47:25,330 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=191, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=53, PETRI_TRANSITIONS=37} [2021-03-25 04:47:25,330 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, -4 predicate places. [2021-03-25 04:47:25,330 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:25,331 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 37 transitions, 86 flow [2021-03-25 04:47:25,331 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 37 transitions, 86 flow [2021-03-25 04:47:25,331 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 37 transitions, 86 flow [2021-03-25 04:47:25,337 INFO L129 PetriNetUnfolder]: 0/37 cut-off events. [2021-03-25 04:47:25,337 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:47:25,337 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 37 events. 0/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 04:47:25,338 INFO L142 LiptonReduction]: Number of co-enabled transitions 392 [2021-03-25 04:47:25,802 WARN L205 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-03-25 04:47:26,104 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-03-25 04:47:26,680 WARN L205 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2021-03-25 04:47:27,257 WARN L205 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2021-03-25 04:47:28,281 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2021-03-25 04:47:28,420 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-03-25 04:47:28,721 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2021-03-25 04:47:28,847 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-03-25 04:47:28,851 INFO L154 LiptonReduction]: Checked pairs total: 2232 [2021-03-25 04:47:28,851 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-25 04:47:28,851 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3521 [2021-03-25 04:47:28,852 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 66 flow [2021-03-25 04:47:28,853 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 04:47:28,853 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:28,853 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] [2021-03-25 04:47:28,853 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 04:47:28,853 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:28,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:28,854 INFO L82 PathProgramCache]: Analyzing trace with hash -2031321782, now seen corresponding path program 1 times [2021-03-25 04:47:28,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:28,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231455685] [2021-03-25 04:47:28,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:28,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:28,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:28,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:28,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:28,993 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 04:47:28,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231455685] [2021-03-25 04:47:28,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:28,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:47:28,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033762919] [2021-03-25 04:47:28,994 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:47:28,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:28,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:47:28,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:47:28,996 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 201 [2021-03-25 04:47:28,997 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 174.75) internal successors, (699), 4 states have internal predecessors, (699), 0 states have call successors, (0), 0 states 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 04:47:28,997 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:28,997 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 201 [2021-03-25 04:47:28,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:29,020 INFO L129 PetriNetUnfolder]: 3/39 cut-off events. [2021-03-25 04:47:29,020 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:47:29,021 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 39 events. 3/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 82 event pairs, 1 based on Foata normal form. 1/37 useless extension candidates. Maximal degree in co-relation 53. Up to 10 conditions per place. [2021-03-25 04:47:29,021 INFO L132 encePairwiseOnDemand]: 197/201 looper letters, 3 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2021-03-25 04:47:29,021 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 29 transitions, 82 flow [2021-03-25 04:47:29,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:47:29,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:47:29,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 529 transitions. [2021-03-25 04:47:29,024 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8772802653399668 [2021-03-25 04:47:29,024 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 529 transitions. [2021-03-25 04:47:29,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 529 transitions. [2021-03-25 04:47:29,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:29,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 529 transitions. [2021-03-25 04:47:29,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 0 states 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 04:47:29,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states 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 04:47:29,027 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states 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 04:47:29,028 INFO L185 Difference]: Start difference. First operand has 38 places, 27 transitions, 66 flow. Second operand 3 states and 529 transitions. [2021-03-25 04:47:29,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 29 transitions, 82 flow [2021-03-25 04:47:29,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 29 transitions, 78 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:47:29,029 INFO L241 Difference]: Finished difference. Result has 39 places, 29 transitions, 81 flow [2021-03-25 04:47:29,029 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2021-03-25 04:47:29,029 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, -18 predicate places. [2021-03-25 04:47:29,030 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:29,030 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 29 transitions, 81 flow [2021-03-25 04:47:29,030 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 29 transitions, 81 flow [2021-03-25 04:47:29,030 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 29 transitions, 81 flow [2021-03-25 04:47:29,034 INFO L129 PetriNetUnfolder]: 3/35 cut-off events. [2021-03-25 04:47:29,035 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 04:47:29,035 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 35 events. 3/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 74 event pairs, 1 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 50. Up to 10 conditions per place. [2021-03-25 04:47:29,035 INFO L142 LiptonReduction]: Number of co-enabled transitions 408 [2021-03-25 04:47:29,038 INFO L154 LiptonReduction]: Checked pairs total: 397 [2021-03-25 04:47:29,038 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:29,038 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-25 04:47:29,038 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 81 flow [2021-03-25 04:47:29,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 174.75) internal successors, (699), 4 states have internal predecessors, (699), 0 states have call successors, (0), 0 states 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 04:47:29,039 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:29,039 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:29,039 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 04:47:29,039 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:29,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:29,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1632435728, now seen corresponding path program 1 times [2021-03-25 04:47:29,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:29,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645157491] [2021-03-25 04:47:29,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:29,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:29,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:29,137 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 04:47:29,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645157491] [2021-03-25 04:47:29,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:29,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:47:29,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021485172] [2021-03-25 04:47:29,138 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:47:29,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:29,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:47:29,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:47:29,139 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 201 [2021-03-25 04:47:29,140 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states 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 04:47:29,140 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:29,140 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 201 [2021-03-25 04:47:29,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:29,150 INFO L129 PetriNetUnfolder]: 3/39 cut-off events. [2021-03-25 04:47:29,150 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-25 04:47:29,150 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 39 events. 3/39 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 78 event pairs, 1 based on Foata normal form. 1/37 useless extension candidates. Maximal degree in co-relation 58. Up to 10 conditions per place. [2021-03-25 04:47:29,151 INFO L132 encePairwiseOnDemand]: 198/201 looper letters, 1 selfloop transitions, 2 changer transitions 0/29 dead transitions. [2021-03-25 04:47:29,151 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 29 transitions, 87 flow [2021-03-25 04:47:29,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:47:29,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:47:29,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 541 transitions. [2021-03-25 04:47:29,153 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8971807628524047 [2021-03-25 04:47:29,153 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 541 transitions. [2021-03-25 04:47:29,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 541 transitions. [2021-03-25 04:47:29,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:29,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 541 transitions. [2021-03-25 04:47:29,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states 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 04:47:29,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states 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 04:47:29,156 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 0 states have call successors, (0), 0 states 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 04:47:29,157 INFO L185 Difference]: Start difference. First operand has 39 places, 29 transitions, 81 flow. Second operand 3 states and 541 transitions. [2021-03-25 04:47:29,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 29 transitions, 87 flow [2021-03-25 04:47:29,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 29 transitions, 84 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:47:29,158 INFO L241 Difference]: Finished difference. Result has 41 places, 29 transitions, 86 flow [2021-03-25 04:47:29,158 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2021-03-25 04:47:29,158 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, -16 predicate places. [2021-03-25 04:47:29,158 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:29,158 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 29 transitions, 86 flow [2021-03-25 04:47:29,159 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 29 transitions, 86 flow [2021-03-25 04:47:29,159 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 29 transitions, 86 flow [2021-03-25 04:47:29,163 INFO L129 PetriNetUnfolder]: 3/35 cut-off events. [2021-03-25 04:47:29,163 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 04:47:29,163 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 35 events. 3/35 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 77 event pairs, 1 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 53. Up to 10 conditions per place. [2021-03-25 04:47:29,164 INFO L142 LiptonReduction]: Number of co-enabled transitions 404 [2021-03-25 04:47:29,275 INFO L154 LiptonReduction]: Checked pairs total: 698 [2021-03-25 04:47:29,275 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 04:47:29,275 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 117 [2021-03-25 04:47:29,276 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 84 flow [2021-03-25 04:47:29,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states 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 04:47:29,277 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:29,277 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:29,277 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 04:47:29,277 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:29,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:29,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1932846463, now seen corresponding path program 1 times [2021-03-25 04:47:29,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:29,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153006282] [2021-03-25 04:47:29,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:29,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:29,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:29,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:47:29,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153006282] [2021-03-25 04:47:29,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:29,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 04:47:29,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717318189] [2021-03-25 04:47:29,350 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:47:29,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:29,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:47:29,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:47:29,352 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 202 [2021-03-25 04:47:29,352 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states 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 04:47:29,352 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:29,352 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 202 [2021-03-25 04:47:29,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:29,367 INFO L129 PetriNetUnfolder]: 10/59 cut-off events. [2021-03-25 04:47:29,367 INFO L130 PetriNetUnfolder]: For 24/33 co-relation queries the response was YES. [2021-03-25 04:47:29,368 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 59 events. 10/59 cut-off events. For 24/33 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 174 event pairs, 3 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 104. Up to 19 conditions per place. [2021-03-25 04:47:29,368 INFO L132 encePairwiseOnDemand]: 198/202 looper letters, 3 selfloop transitions, 3 changer transitions 0/30 dead transitions. [2021-03-25 04:47:29,368 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 30 transitions, 100 flow [2021-03-25 04:47:29,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:47:29,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:47:29,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 544 transitions. [2021-03-25 04:47:29,370 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8976897689768977 [2021-03-25 04:47:29,370 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 544 transitions. [2021-03-25 04:47:29,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 544 transitions. [2021-03-25 04:47:29,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:29,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 544 transitions. [2021-03-25 04:47:29,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 states 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 04:47:29,374 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 04:47:29,374 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 04:47:29,374 INFO L185 Difference]: Start difference. First operand has 40 places, 28 transitions, 84 flow. Second operand 3 states and 544 transitions. [2021-03-25 04:47:29,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 30 transitions, 100 flow [2021-03-25 04:47:29,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 30 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 04:47:29,376 INFO L241 Difference]: Finished difference. Result has 41 places, 30 transitions, 99 flow [2021-03-25 04:47:29,376 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=38, 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=99, PETRI_PLACES=41, PETRI_TRANSITIONS=30} [2021-03-25 04:47:29,376 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, -16 predicate places. [2021-03-25 04:47:29,376 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:29,376 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 30 transitions, 99 flow [2021-03-25 04:47:29,376 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 30 transitions, 99 flow [2021-03-25 04:47:29,377 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 30 transitions, 99 flow [2021-03-25 04:47:29,382 INFO L129 PetriNetUnfolder]: 7/46 cut-off events. [2021-03-25 04:47:29,383 INFO L130 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2021-03-25 04:47:29,383 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 46 events. 7/46 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 135 event pairs, 3 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 87. Up to 15 conditions per place. [2021-03-25 04:47:29,384 INFO L142 LiptonReduction]: Number of co-enabled transitions 428 [2021-03-25 04:47:29,386 INFO L154 LiptonReduction]: Checked pairs total: 257 [2021-03-25 04:47:29,386 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:29,386 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-25 04:47:29,387 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 99 flow [2021-03-25 04:47:29,387 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 0 states have call successors, (0), 0 states 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 04:47:29,387 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:29,387 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:29,387 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 04:47:29,388 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:29,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:29,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1669921867, now seen corresponding path program 1 times [2021-03-25 04:47:29,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:29,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871349923] [2021-03-25 04:47:29,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:29,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:29,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:47:29,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:29,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:29,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 04:47:29,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871349923] [2021-03-25 04:47:29,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:29,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:47:29,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464181199] [2021-03-25 04:47:29,448 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:47:29,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:29,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:47:29,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:47:29,449 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 202 [2021-03-25 04:47:29,450 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 99 flow. Second operand has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states 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 04:47:29,450 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:29,450 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 202 [2021-03-25 04:47:29,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:29,469 INFO L129 PetriNetUnfolder]: 4/53 cut-off events. [2021-03-25 04:47:29,469 INFO L130 PetriNetUnfolder]: For 50/83 co-relation queries the response was YES. [2021-03-25 04:47:29,470 INFO L84 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 53 events. 4/53 cut-off events. For 50/83 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 187 event pairs, 1 based on Foata normal form. 2/50 useless extension candidates. Maximal degree in co-relation 105. Up to 15 conditions per place. [2021-03-25 04:47:29,470 INFO L132 encePairwiseOnDemand]: 199/202 looper letters, 3 selfloop transitions, 3 changer transitions 0/30 dead transitions. [2021-03-25 04:47:29,470 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 30 transitions, 111 flow [2021-03-25 04:47:29,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:47:29,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:47:29,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 543 transitions. [2021-03-25 04:47:29,472 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8960396039603961 [2021-03-25 04:47:29,472 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 543 transitions. [2021-03-25 04:47:29,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 543 transitions. [2021-03-25 04:47:29,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:29,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 543 transitions. [2021-03-25 04:47:29,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 04:47:29,476 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 04:47:29,476 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 04:47:29,476 INFO L185 Difference]: Start difference. First operand has 41 places, 30 transitions, 99 flow. Second operand 3 states and 543 transitions. [2021-03-25 04:47:29,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 30 transitions, 111 flow [2021-03-25 04:47:29,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 30 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:47:29,478 INFO L241 Difference]: Finished difference. Result has 43 places, 30 transitions, 107 flow [2021-03-25 04:47:29,478 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=107, PETRI_PLACES=43, PETRI_TRANSITIONS=30} [2021-03-25 04:47:29,478 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, -14 predicate places. [2021-03-25 04:47:29,478 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:29,478 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 30 transitions, 107 flow [2021-03-25 04:47:29,479 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 30 transitions, 107 flow [2021-03-25 04:47:29,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 30 transitions, 107 flow [2021-03-25 04:47:29,484 INFO L129 PetriNetUnfolder]: 4/46 cut-off events. [2021-03-25 04:47:29,485 INFO L130 PetriNetUnfolder]: For 35/42 co-relation queries the response was YES. [2021-03-25 04:47:29,485 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 46 events. 4/46 cut-off events. For 35/42 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 133 event pairs, 2 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 88. Up to 13 conditions per place. [2021-03-25 04:47:29,486 INFO L142 LiptonReduction]: Number of co-enabled transitions 428 [2021-03-25 04:47:29,488 INFO L154 LiptonReduction]: Checked pairs total: 313 [2021-03-25 04:47:29,488 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:29,488 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-25 04:47:29,488 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 30 transitions, 107 flow [2021-03-25 04:47:29,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states 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 04:47:29,489 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:29,489 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:29,489 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 04:47:29,489 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:29,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:29,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1932832544, now seen corresponding path program 1 times [2021-03-25 04:47:29,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:29,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731485782] [2021-03-25 04:47:29,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:29,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:29,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:47:29,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:29,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:47:29,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:29,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 04:47:29,614 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 04:47:29,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731485782] [2021-03-25 04:47:29,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:29,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:47:29,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674007295] [2021-03-25 04:47:29,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:47:29,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:29,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:47:29,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:47:29,616 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 202 [2021-03-25 04:47:29,617 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 30 transitions, 107 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 04:47:29,617 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:29,617 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 202 [2021-03-25 04:47:29,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:29,711 INFO L129 PetriNetUnfolder]: 80/226 cut-off events. [2021-03-25 04:47:29,711 INFO L130 PetriNetUnfolder]: For 265/320 co-relation queries the response was YES. [2021-03-25 04:47:29,713 INFO L84 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 226 events. 80/226 cut-off events. For 265/320 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1186 event pairs, 33 based on Foata normal form. 3/205 useless extension candidates. Maximal degree in co-relation 528. Up to 127 conditions per place. [2021-03-25 04:47:29,716 INFO L132 encePairwiseOnDemand]: 197/202 looper letters, 8 selfloop transitions, 5 changer transitions 0/36 dead transitions. [2021-03-25 04:47:29,716 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 36 transitions, 146 flow [2021-03-25 04:47:29,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:47:29,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:47:29,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 670 transitions. [2021-03-25 04:47:29,719 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8292079207920792 [2021-03-25 04:47:29,719 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 670 transitions. [2021-03-25 04:47:29,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 670 transitions. [2021-03-25 04:47:29,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:29,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 670 transitions. [2021-03-25 04:47:29,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 167.5) internal successors, (670), 4 states have internal predecessors, (670), 0 states have call successors, (0), 0 states 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 04:47:29,723 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 04:47:29,724 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 04:47:29,724 INFO L185 Difference]: Start difference. First operand has 43 places, 30 transitions, 107 flow. Second operand 4 states and 670 transitions. [2021-03-25 04:47:29,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 36 transitions, 146 flow [2021-03-25 04:47:29,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 141 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 04:47:29,727 INFO L241 Difference]: Finished difference. Result has 47 places, 34 transitions, 135 flow [2021-03-25 04:47:29,728 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=135, PETRI_PLACES=47, PETRI_TRANSITIONS=34} [2021-03-25 04:47:29,728 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, -10 predicate places. [2021-03-25 04:47:29,728 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:29,728 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 34 transitions, 135 flow [2021-03-25 04:47:29,728 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 34 transitions, 135 flow [2021-03-25 04:47:29,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 34 transitions, 135 flow [2021-03-25 04:47:29,742 INFO L129 PetriNetUnfolder]: 11/78 cut-off events. [2021-03-25 04:47:29,742 INFO L130 PetriNetUnfolder]: For 139/155 co-relation queries the response was YES. [2021-03-25 04:47:29,742 INFO L84 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 78 events. 11/78 cut-off events. For 139/155 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 312 event pairs, 4 based on Foata normal form. 1/69 useless extension candidates. Maximal degree in co-relation 176. Up to 21 conditions per place. [2021-03-25 04:47:29,744 INFO L142 LiptonReduction]: Number of co-enabled transitions 510 [2021-03-25 04:47:29,746 INFO L154 LiptonReduction]: Checked pairs total: 301 [2021-03-25 04:47:29,746 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:29,747 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-25 04:47:29,750 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 34 transitions, 135 flow [2021-03-25 04:47:29,750 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 04:47:29,750 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:29,750 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:29,751 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 04:47:29,751 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:29,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:29,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1399623866, now seen corresponding path program 1 times [2021-03-25 04:47:29,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:29,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684818937] [2021-03-25 04:47:29,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:29,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:29,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:29,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:29,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:29,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:29,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 04:47:29,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:29,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 04:47:29,881 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 04:47:29,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684818937] [2021-03-25 04:47:29,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:29,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:47:29,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103690299] [2021-03-25 04:47:29,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:47:29,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:29,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:47:29,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:47:29,884 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 202 [2021-03-25 04:47:29,885 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 34 transitions, 135 flow. Second operand has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states 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 04:47:29,885 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:29,885 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 202 [2021-03-25 04:47:29,885 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:30,000 INFO L129 PetriNetUnfolder]: 108/279 cut-off events. [2021-03-25 04:47:30,000 INFO L130 PetriNetUnfolder]: For 478/516 co-relation queries the response was YES. [2021-03-25 04:47:30,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 808 conditions, 279 events. 108/279 cut-off events. For 478/516 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1507 event pairs, 23 based on Foata normal form. 6/257 useless extension candidates. Maximal degree in co-relation 791. Up to 150 conditions per place. [2021-03-25 04:47:30,003 INFO L132 encePairwiseOnDemand]: 195/202 looper letters, 8 selfloop transitions, 11 changer transitions 0/42 dead transitions. [2021-03-25 04:47:30,003 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 42 transitions, 206 flow [2021-03-25 04:47:30,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:47:30,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:47:30,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 861 transitions. [2021-03-25 04:47:30,006 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8524752475247525 [2021-03-25 04:47:30,007 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 861 transitions. [2021-03-25 04:47:30,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 861 transitions. [2021-03-25 04:47:30,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:30,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 861 transitions. [2021-03-25 04:47:30,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 172.2) internal successors, (861), 5 states have internal predecessors, (861), 0 states have call successors, (0), 0 states 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 04:47:30,011 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 04:47:30,011 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 04:47:30,012 INFO L185 Difference]: Start difference. First operand has 47 places, 34 transitions, 135 flow. Second operand 5 states and 861 transitions. [2021-03-25 04:47:30,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 42 transitions, 206 flow [2021-03-25 04:47:30,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 42 transitions, 206 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 04:47:30,016 INFO L241 Difference]: Finished difference. Result has 53 places, 41 transitions, 211 flow [2021-03-25 04:47:30,016 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=211, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2021-03-25 04:47:30,016 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, -4 predicate places. [2021-03-25 04:47:30,016 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:30,016 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 41 transitions, 211 flow [2021-03-25 04:47:30,017 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 41 transitions, 211 flow [2021-03-25 04:47:30,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 41 transitions, 211 flow [2021-03-25 04:47:30,043 INFO L129 PetriNetUnfolder]: 62/179 cut-off events. [2021-03-25 04:47:30,043 INFO L130 PetriNetUnfolder]: For 565/595 co-relation queries the response was YES. [2021-03-25 04:47:30,044 INFO L84 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 179 events. 62/179 cut-off events. For 565/595 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 883 event pairs, 8 based on Foata normal form. 2/154 useless extension candidates. Maximal degree in co-relation 569. Up to 68 conditions per place. [2021-03-25 04:47:30,046 INFO L142 LiptonReduction]: Number of co-enabled transitions 638 [2021-03-25 04:47:30,053 INFO L154 LiptonReduction]: Checked pairs total: 290 [2021-03-25 04:47:30,053 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:30,053 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-25 04:47:30,057 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 211 flow [2021-03-25 04:47:30,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states 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 04:47:30,057 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:30,057 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:30,057 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 04:47:30,057 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:30,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:30,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1211597395, now seen corresponding path program 1 times [2021-03-25 04:47:30,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:30,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775275038] [2021-03-25 04:47:30,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:30,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:30,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:47:30,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:30,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:30,135 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 04:47:30,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775275038] [2021-03-25 04:47:30,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:30,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 04:47:30,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227464221] [2021-03-25 04:47:30,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 04:47:30,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:30,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 04:47:30,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 04:47:30,138 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 202 [2021-03-25 04:47:30,138 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states 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 04:47:30,138 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:30,138 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 202 [2021-03-25 04:47:30,139 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:30,187 INFO L129 PetriNetUnfolder]: 71/255 cut-off events. [2021-03-25 04:47:30,188 INFO L130 PetriNetUnfolder]: For 1733/2091 co-relation queries the response was YES. [2021-03-25 04:47:30,189 INFO L84 FinitePrefix]: Finished finitePrefix Result has 838 conditions, 255 events. 71/255 cut-off events. For 1733/2091 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1545 event pairs, 13 based on Foata normal form. 18/251 useless extension candidates. Maximal degree in co-relation 817. Up to 91 conditions per place. [2021-03-25 04:47:30,190 INFO L132 encePairwiseOnDemand]: 199/202 looper letters, 4 selfloop transitions, 3 changer transitions 0/41 dead transitions. [2021-03-25 04:47:30,190 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 41 transitions, 225 flow [2021-03-25 04:47:30,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 04:47:30,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 04:47:30,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 543 transitions. [2021-03-25 04:47:30,193 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8960396039603961 [2021-03-25 04:47:30,193 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 543 transitions. [2021-03-25 04:47:30,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 543 transitions. [2021-03-25 04:47:30,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:30,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 543 transitions. [2021-03-25 04:47:30,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 04:47:30,196 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 04:47:30,196 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 04:47:30,196 INFO L185 Difference]: Start difference. First operand has 53 places, 41 transitions, 211 flow. Second operand 3 states and 543 transitions. [2021-03-25 04:47:30,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 41 transitions, 225 flow [2021-03-25 04:47:30,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 41 transitions, 216 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-03-25 04:47:30,203 INFO L241 Difference]: Finished difference. Result has 55 places, 41 transitions, 215 flow [2021-03-25 04:47:30,203 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=215, PETRI_PLACES=55, PETRI_TRANSITIONS=41} [2021-03-25 04:47:30,204 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, -2 predicate places. [2021-03-25 04:47:30,204 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:30,204 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 41 transitions, 215 flow [2021-03-25 04:47:30,204 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 41 transitions, 215 flow [2021-03-25 04:47:30,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 41 transitions, 215 flow [2021-03-25 04:47:30,234 INFO L129 PetriNetUnfolder]: 70/232 cut-off events. [2021-03-25 04:47:30,234 INFO L130 PetriNetUnfolder]: For 972/1069 co-relation queries the response was YES. [2021-03-25 04:47:30,235 INFO L84 FinitePrefix]: Finished finitePrefix Result has 705 conditions, 232 events. 70/232 cut-off events. For 972/1069 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1356 event pairs, 3 based on Foata normal form. 2/213 useless extension candidates. Maximal degree in co-relation 685. Up to 87 conditions per place. [2021-03-25 04:47:30,237 INFO L142 LiptonReduction]: Number of co-enabled transitions 638 [2021-03-25 04:47:30,248 INFO L154 LiptonReduction]: Checked pairs total: 392 [2021-03-25 04:47:30,248 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:30,248 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-03-25 04:47:30,249 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 41 transitions, 215 flow [2021-03-25 04:47:30,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 180.0) internal successors, (540), 3 states have internal predecessors, (540), 0 states have call successors, (0), 0 states 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 04:47:30,250 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:30,250 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 04:47:30,250 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 04:47:30,250 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:30,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:30,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1095186545, now seen corresponding path program 1 times [2021-03-25 04:47:30,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:30,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265498159] [2021-03-25 04:47:30,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:30,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:30,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:30,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:47:30,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:30,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:47:30,330 INFO L142 QuantifierPusher]: treesize reduction 10, result has 80.4 percent of original size [2021-03-25 04:47:30,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 04:47:30,347 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-03-25 04:47:30,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-25 04:47:30,365 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 04:47:30,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265498159] [2021-03-25 04:47:30,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:30,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:47:30,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643011507] [2021-03-25 04:47:30,366 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:47:30,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:30,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:47:30,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:47:30,367 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 202 [2021-03-25 04:47:30,368 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 41 transitions, 215 flow. Second operand has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states 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 04:47:30,368 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:30,368 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 202 [2021-03-25 04:47:30,368 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:30,472 INFO L129 PetriNetUnfolder]: 77/268 cut-off events. [2021-03-25 04:47:30,473 INFO L130 PetriNetUnfolder]: For 1443/1567 co-relation queries the response was YES. [2021-03-25 04:47:30,474 INFO L84 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 268 events. 77/268 cut-off events. For 1443/1567 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1609 event pairs, 0 based on Foata normal form. 24/275 useless extension candidates. Maximal degree in co-relation 903. Up to 100 conditions per place. [2021-03-25 04:47:30,476 INFO L132 encePairwiseOnDemand]: 196/202 looper letters, 12 selfloop transitions, 13 changer transitions 0/48 dead transitions. [2021-03-25 04:47:30,477 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 48 transitions, 286 flow [2021-03-25 04:47:30,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 04:47:30,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 04:47:30,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1000 transitions. [2021-03-25 04:47:30,480 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8250825082508251 [2021-03-25 04:47:30,480 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1000 transitions. [2021-03-25 04:47:30,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1000 transitions. [2021-03-25 04:47:30,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:30,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1000 transitions. [2021-03-25 04:47:30,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 166.66666666666666) internal successors, (1000), 6 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states 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 04:47:30,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 202.0) internal successors, (1414), 7 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states 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 04:47:30,485 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 202.0) internal successors, (1414), 7 states have internal predecessors, (1414), 0 states have call successors, (0), 0 states 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 04:47:30,485 INFO L185 Difference]: Start difference. First operand has 55 places, 41 transitions, 215 flow. Second operand 6 states and 1000 transitions. [2021-03-25 04:47:30,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 48 transitions, 286 flow [2021-03-25 04:47:30,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 48 transitions, 281 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 04:47:30,488 INFO L241 Difference]: Finished difference. Result has 60 places, 43 transitions, 254 flow [2021-03-25 04:47:30,488 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=254, PETRI_PLACES=60, PETRI_TRANSITIONS=43} [2021-03-25 04:47:30,488 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 3 predicate places. [2021-03-25 04:47:30,488 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:30,489 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 43 transitions, 254 flow [2021-03-25 04:47:30,489 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 43 transitions, 254 flow [2021-03-25 04:47:30,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 43 transitions, 254 flow [2021-03-25 04:47:30,520 INFO L129 PetriNetUnfolder]: 66/250 cut-off events. [2021-03-25 04:47:30,520 INFO L130 PetriNetUnfolder]: For 1348/1423 co-relation queries the response was YES. [2021-03-25 04:47:30,521 INFO L84 FinitePrefix]: Finished finitePrefix Result has 905 conditions, 250 events. 66/250 cut-off events. For 1348/1423 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1565 event pairs, 7 based on Foata normal form. 4/238 useless extension candidates. Maximal degree in co-relation 883. Up to 95 conditions per place. [2021-03-25 04:47:30,524 INFO L142 LiptonReduction]: Number of co-enabled transitions 686 [2021-03-25 04:47:30,542 INFO L154 LiptonReduction]: Checked pairs total: 483 [2021-03-25 04:47:30,542 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:30,542 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 54 [2021-03-25 04:47:30,545 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 43 transitions, 254 flow [2021-03-25 04:47:30,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states 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 04:47:30,545 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:30,545 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:30,545 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 04:47:30,545 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:30,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:30,546 INFO L82 PathProgramCache]: Analyzing trace with hash -741246427, now seen corresponding path program 1 times [2021-03-25 04:47:30,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:30,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570144634] [2021-03-25 04:47:30,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:30,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:30,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:30,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:47:30,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:30,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 04:47:30,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:30,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-25 04:47:30,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:30,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 04:47:30,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:30,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 04:47:30,690 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 04:47:30,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570144634] [2021-03-25 04:47:30,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:30,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:47:30,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129940760] [2021-03-25 04:47:30,692 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:47:30,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:30,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:47:30,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:47:30,695 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 202 [2021-03-25 04:47:30,696 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 43 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 160.0) internal successors, (960), 6 states have internal predecessors, (960), 0 states have call successors, (0), 0 states 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 04:47:30,696 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:30,696 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 202 [2021-03-25 04:47:30,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:30,819 INFO L129 PetriNetUnfolder]: 80/283 cut-off events. [2021-03-25 04:47:30,820 INFO L130 PetriNetUnfolder]: For 1301/1377 co-relation queries the response was YES. [2021-03-25 04:47:30,821 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1152 conditions, 283 events. 80/283 cut-off events. For 1301/1377 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1766 event pairs, 14 based on Foata normal form. 10/275 useless extension candidates. Maximal degree in co-relation 1128. Up to 135 conditions per place. [2021-03-25 04:47:30,823 INFO L132 encePairwiseOnDemand]: 195/202 looper letters, 11 selfloop transitions, 11 changer transitions 0/45 dead transitions. [2021-03-25 04:47:30,823 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 45 transitions, 310 flow [2021-03-25 04:47:30,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:47:30,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:47:30,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 810 transitions. [2021-03-25 04:47:30,825 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.801980198019802 [2021-03-25 04:47:30,826 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 810 transitions. [2021-03-25 04:47:30,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 810 transitions. [2021-03-25 04:47:30,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:30,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 810 transitions. [2021-03-25 04:47:30,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 0 states have call successors, (0), 0 states 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 04:47:30,830 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 04:47:30,830 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 04:47:30,830 INFO L185 Difference]: Start difference. First operand has 60 places, 43 transitions, 254 flow. Second operand 5 states and 810 transitions. [2021-03-25 04:47:30,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 45 transitions, 310 flow [2021-03-25 04:47:30,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 45 transitions, 294 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-25 04:47:30,834 INFO L241 Difference]: Finished difference. Result has 61 places, 44 transitions, 275 flow [2021-03-25 04:47:30,834 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=275, PETRI_PLACES=61, PETRI_TRANSITIONS=44} [2021-03-25 04:47:30,834 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 4 predicate places. [2021-03-25 04:47:30,835 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:30,835 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 44 transitions, 275 flow [2021-03-25 04:47:30,835 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 44 transitions, 275 flow [2021-03-25 04:47:30,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 44 transitions, 275 flow [2021-03-25 04:47:30,870 INFO L129 PetriNetUnfolder]: 72/268 cut-off events. [2021-03-25 04:47:30,870 INFO L130 PetriNetUnfolder]: For 1330/1409 co-relation queries the response was YES. [2021-03-25 04:47:30,871 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1008 conditions, 268 events. 72/268 cut-off events. For 1330/1409 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1745 event pairs, 13 based on Foata normal form. 8/260 useless extension candidates. Maximal degree in co-relation 987. Up to 101 conditions per place. [2021-03-25 04:47:30,874 INFO L142 LiptonReduction]: Number of co-enabled transitions 710 [2021-03-25 04:47:30,894 INFO L154 LiptonReduction]: Checked pairs total: 493 [2021-03-25 04:47:30,894 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:30,894 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 59 [2021-03-25 04:47:30,896 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 44 transitions, 275 flow [2021-03-25 04:47:30,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 160.0) internal successors, (960), 6 states have internal predecessors, (960), 0 states have call successors, (0), 0 states 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 04:47:30,897 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:30,897 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:30,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 04:47:30,897 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:30,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:30,897 INFO L82 PathProgramCache]: Analyzing trace with hash -722583771, now seen corresponding path program 2 times [2021-03-25 04:47:30,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:30,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879801991] [2021-03-25 04:47:30,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:30,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:30,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:47:30,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:30,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 04:47:31,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:31,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-25 04:47:31,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:31,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-25 04:47:31,053 INFO L142 QuantifierPusher]: treesize reduction 10, result has 84.1 percent of original size [2021-03-25 04:47:31,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 04:47:31,079 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 04:47:31,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879801991] [2021-03-25 04:47:31,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:31,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:47:31,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716038770] [2021-03-25 04:47:31,079 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:47:31,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:31,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:47:31,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:47:31,081 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 202 [2021-03-25 04:47:31,082 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 44 transitions, 275 flow. Second operand has 7 states, 7 states have (on average 159.85714285714286) internal successors, (1119), 7 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states 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 04:47:31,082 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:31,082 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 202 [2021-03-25 04:47:31,082 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:31,203 INFO L129 PetriNetUnfolder]: 83/284 cut-off events. [2021-03-25 04:47:31,204 INFO L130 PetriNetUnfolder]: For 1381/1459 co-relation queries the response was YES. [2021-03-25 04:47:31,205 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1252 conditions, 284 events. 83/284 cut-off events. For 1381/1459 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1714 event pairs, 4 based on Foata normal form. 13/280 useless extension candidates. Maximal degree in co-relation 1229. Up to 129 conditions per place. [2021-03-25 04:47:31,207 INFO L132 encePairwiseOnDemand]: 197/202 looper letters, 20 selfloop transitions, 9 changer transitions 0/52 dead transitions. [2021-03-25 04:47:31,207 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 52 transitions, 382 flow [2021-03-25 04:47:31,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:47:31,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:47:31,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 811 transitions. [2021-03-25 04:47:31,210 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.802970297029703 [2021-03-25 04:47:31,210 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 811 transitions. [2021-03-25 04:47:31,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 811 transitions. [2021-03-25 04:47:31,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:31,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 811 transitions. [2021-03-25 04:47:31,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 162.2) internal successors, (811), 5 states have internal predecessors, (811), 0 states have call successors, (0), 0 states 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 04:47:31,215 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 04:47:31,216 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 04:47:31,216 INFO L185 Difference]: Start difference. First operand has 61 places, 44 transitions, 275 flow. Second operand 5 states and 811 transitions. [2021-03-25 04:47:31,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 52 transitions, 382 flow [2021-03-25 04:47:31,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 52 transitions, 359 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-25 04:47:31,220 INFO L241 Difference]: Finished difference. Result has 63 places, 46 transitions, 301 flow [2021-03-25 04:47:31,220 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=301, PETRI_PLACES=63, PETRI_TRANSITIONS=46} [2021-03-25 04:47:31,220 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 6 predicate places. [2021-03-25 04:47:31,220 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:31,221 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 46 transitions, 301 flow [2021-03-25 04:47:31,221 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 46 transitions, 301 flow [2021-03-25 04:47:31,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 46 transitions, 301 flow [2021-03-25 04:47:31,267 INFO L129 PetriNetUnfolder]: 72/280 cut-off events. [2021-03-25 04:47:31,267 INFO L130 PetriNetUnfolder]: For 1614/1693 co-relation queries the response was YES. [2021-03-25 04:47:31,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1070 conditions, 280 events. 72/280 cut-off events. For 1614/1693 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1819 event pairs, 10 based on Foata normal form. 8/272 useless extension candidates. Maximal degree in co-relation 1048. Up to 110 conditions per place. [2021-03-25 04:47:31,273 INFO L142 LiptonReduction]: Number of co-enabled transitions 744 [2021-03-25 04:47:31,295 INFO L154 LiptonReduction]: Checked pairs total: 538 [2021-03-25 04:47:31,295 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:31,295 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 75 [2021-03-25 04:47:31,296 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 46 transitions, 301 flow [2021-03-25 04:47:31,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 159.85714285714286) internal successors, (1119), 7 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states 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 04:47:31,296 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:31,296 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:31,297 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 04:47:31,297 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:31,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:31,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1267899569, now seen corresponding path program 3 times [2021-03-25 04:47:31,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:31,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064191812] [2021-03-25 04:47:31,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:31,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:31,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:47:31,389 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.3 percent of original size [2021-03-25 04:47:31,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-25 04:47:31,412 INFO L142 QuantifierPusher]: treesize reduction 10, result has 84.1 percent of original size [2021-03-25 04:47:31,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 04:47:31,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:31,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 04:47:31,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:31,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-25 04:47:31,459 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 04:47:31,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064191812] [2021-03-25 04:47:31,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:31,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:47:31,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175415259] [2021-03-25 04:47:31,460 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:47:31,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:31,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:47:31,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:47:31,462 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 202 [2021-03-25 04:47:31,463 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 46 transitions, 301 flow. Second operand has 7 states, 7 states have (on average 157.85714285714286) internal successors, (1105), 7 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states 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 04:47:31,463 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:31,463 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 202 [2021-03-25 04:47:31,463 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:31,622 INFO L129 PetriNetUnfolder]: 72/292 cut-off events. [2021-03-25 04:47:31,622 INFO L130 PetriNetUnfolder]: For 1537/1613 co-relation queries the response was YES. [2021-03-25 04:47:31,624 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1214 conditions, 292 events. 72/292 cut-off events. For 1537/1613 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1929 event pairs, 0 based on Foata normal form. 15/291 useless extension candidates. Maximal degree in co-relation 1190. Up to 102 conditions per place. [2021-03-25 04:47:31,625 INFO L132 encePairwiseOnDemand]: 197/202 looper letters, 14 selfloop transitions, 15 changer transitions 0/52 dead transitions. [2021-03-25 04:47:31,625 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 52 transitions, 386 flow [2021-03-25 04:47:31,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:47:31,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:47:31,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1117 transitions. [2021-03-25 04:47:31,629 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.78995756718529 [2021-03-25 04:47:31,629 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1117 transitions. [2021-03-25 04:47:31,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1117 transitions. [2021-03-25 04:47:31,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:31,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1117 transitions. [2021-03-25 04:47:31,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 159.57142857142858) internal successors, (1117), 7 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states 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 04:47:31,634 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 04:47:31,634 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 04:47:31,634 INFO L185 Difference]: Start difference. First operand has 63 places, 46 transitions, 301 flow. Second operand 7 states and 1117 transitions. [2021-03-25 04:47:31,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 52 transitions, 386 flow [2021-03-25 04:47:31,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 52 transitions, 368 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-25 04:47:31,640 INFO L241 Difference]: Finished difference. Result has 67 places, 46 transitions, 326 flow [2021-03-25 04:47:31,640 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=326, PETRI_PLACES=67, PETRI_TRANSITIONS=46} [2021-03-25 04:47:31,640 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 10 predicate places. [2021-03-25 04:47:31,641 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:31,641 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 46 transitions, 326 flow [2021-03-25 04:47:31,641 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 46 transitions, 326 flow [2021-03-25 04:47:31,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 46 transitions, 326 flow [2021-03-25 04:47:31,677 INFO L129 PetriNetUnfolder]: 64/280 cut-off events. [2021-03-25 04:47:31,677 INFO L130 PetriNetUnfolder]: For 1667/1738 co-relation queries the response was YES. [2021-03-25 04:47:31,678 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1086 conditions, 280 events. 64/280 cut-off events. For 1667/1738 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1872 event pairs, 10 based on Foata normal form. 7/272 useless extension candidates. Maximal degree in co-relation 1063. Up to 102 conditions per place. [2021-03-25 04:47:31,682 INFO L142 LiptonReduction]: Number of co-enabled transitions 742 [2021-03-25 04:47:31,702 INFO L154 LiptonReduction]: Checked pairs total: 555 [2021-03-25 04:47:31,702 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:31,702 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 61 [2021-03-25 04:47:31,703 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 46 transitions, 326 flow [2021-03-25 04:47:31,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 157.85714285714286) internal successors, (1105), 7 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states 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 04:47:31,704 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:31,704 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:31,704 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 04:47:31,704 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:31,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:31,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1852195531, now seen corresponding path program 1 times [2021-03-25 04:47:31,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:31,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079838764] [2021-03-25 04:47:31,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:31,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:31,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:31,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:31,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:31,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:31,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:47:31,751 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 04:47:31,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079838764] [2021-03-25 04:47:31,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:31,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:47:31,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407351054] [2021-03-25 04:47:31,751 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:47:31,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:31,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:47:31,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:47:31,753 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 202 [2021-03-25 04:47:31,753 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 46 transitions, 326 flow. Second operand has 4 states, 4 states have (on average 167.75) internal successors, (671), 4 states have internal predecessors, (671), 0 states have call successors, (0), 0 states 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 04:47:31,754 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:31,754 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 202 [2021-03-25 04:47:31,754 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:32,109 INFO L129 PetriNetUnfolder]: 1647/2889 cut-off events. [2021-03-25 04:47:32,109 INFO L130 PetriNetUnfolder]: For 4658/5712 co-relation queries the response was YES. [2021-03-25 04:47:32,125 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7890 conditions, 2889 events. 1647/2889 cut-off events. For 4658/5712 co-relation queries the response was YES. Maximal size of possible extension queue 546. Compared 22847 event pairs, 837 based on Foata normal form. 230/2398 useless extension candidates. Maximal degree in co-relation 7865. Up to 2031 conditions per place. [2021-03-25 04:47:32,136 INFO L132 encePairwiseOnDemand]: 195/202 looper letters, 13 selfloop transitions, 10 changer transitions 0/60 dead transitions. [2021-03-25 04:47:32,136 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 60 transitions, 400 flow [2021-03-25 04:47:32,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 04:47:32,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 04:47:32,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 859 transitions. [2021-03-25 04:47:32,139 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8504950495049505 [2021-03-25 04:47:32,139 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 859 transitions. [2021-03-25 04:47:32,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 859 transitions. [2021-03-25 04:47:32,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:32,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 859 transitions. [2021-03-25 04:47:32,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 171.8) internal successors, (859), 5 states have internal predecessors, (859), 0 states have call successors, (0), 0 states 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 04:47:32,142 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 04:47:32,143 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 04:47:32,143 INFO L185 Difference]: Start difference. First operand has 67 places, 46 transitions, 326 flow. Second operand 5 states and 859 transitions. [2021-03-25 04:47:32,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 60 transitions, 400 flow [2021-03-25 04:47:32,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 60 transitions, 370 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-25 04:47:32,151 INFO L241 Difference]: Finished difference. Result has 68 places, 55 transitions, 375 flow [2021-03-25 04:47:32,151 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=375, PETRI_PLACES=68, PETRI_TRANSITIONS=55} [2021-03-25 04:47:32,151 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 11 predicate places. [2021-03-25 04:47:32,151 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:32,151 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 55 transitions, 375 flow [2021-03-25 04:47:32,151 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 55 transitions, 375 flow [2021-03-25 04:47:32,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 55 transitions, 375 flow [2021-03-25 04:47:32,391 INFO L129 PetriNetUnfolder]: 1292/2350 cut-off events. [2021-03-25 04:47:32,391 INFO L130 PetriNetUnfolder]: For 4789/6503 co-relation queries the response was YES. [2021-03-25 04:47:32,404 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8009 conditions, 2350 events. 1292/2350 cut-off events. For 4789/6503 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 18382 event pairs, 559 based on Foata normal form. 15/1860 useless extension candidates. Maximal degree in co-relation 7984. Up to 1742 conditions per place. [2021-03-25 04:47:32,432 INFO L142 LiptonReduction]: Number of co-enabled transitions 1040 [2021-03-25 04:47:32,707 INFO L154 LiptonReduction]: Checked pairs total: 200 [2021-03-25 04:47:32,707 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:32,707 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 556 [2021-03-25 04:47:32,707 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 55 transitions, 375 flow [2021-03-25 04:47:32,708 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 167.75) internal successors, (671), 4 states have internal predecessors, (671), 0 states have call successors, (0), 0 states 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 04:47:32,708 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:32,708 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 04:47:32,708 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 04:47:32,708 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:32,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:32,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1556270217, now seen corresponding path program 1 times [2021-03-25 04:47:32,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:32,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113569411] [2021-03-25 04:47:32,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:32,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:32,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:32,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:32,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:32,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:32,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:32,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:32,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:32,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:47:32,753 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 04:47:32,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113569411] [2021-03-25 04:47:32,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:32,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 04:47:32,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964320905] [2021-03-25 04:47:32,753 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 04:47:32,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:32,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 04:47:32,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 04:47:32,755 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 202 [2021-03-25 04:47:32,755 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 55 transitions, 375 flow. Second operand has 5 states, 5 states have (on average 167.8) internal successors, (839), 5 states have internal predecessors, (839), 0 states have call successors, (0), 0 states 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 04:47:32,756 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:32,756 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 202 [2021-03-25 04:47:32,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:33,046 INFO L129 PetriNetUnfolder]: 1312/2388 cut-off events. [2021-03-25 04:47:33,046 INFO L130 PetriNetUnfolder]: For 5448/15347 co-relation queries the response was YES. [2021-03-25 04:47:33,061 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9521 conditions, 2388 events. 1312/2388 cut-off events. For 5448/15347 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 17910 event pairs, 210 based on Foata normal form. 467/2373 useless extension candidates. Maximal degree in co-relation 9494. Up to 1765 conditions per place. [2021-03-25 04:47:33,070 INFO L132 encePairwiseOnDemand]: 195/202 looper letters, 14 selfloop transitions, 19 changer transitions 0/70 dead transitions. [2021-03-25 04:47:33,070 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 70 transitions, 521 flow [2021-03-25 04:47:33,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 04:47:33,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 04:47:33,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1203 transitions. [2021-03-25 04:47:33,074 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8507779349363508 [2021-03-25 04:47:33,074 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1203 transitions. [2021-03-25 04:47:33,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1203 transitions. [2021-03-25 04:47:33,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:33,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1203 transitions. [2021-03-25 04:47:33,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 171.85714285714286) internal successors, (1203), 7 states have internal predecessors, (1203), 0 states have call successors, (0), 0 states 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 04:47:33,079 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 04:47:33,080 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 04:47:33,080 INFO L185 Difference]: Start difference. First operand has 68 places, 55 transitions, 375 flow. Second operand 7 states and 1203 transitions. [2021-03-25 04:47:33,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 70 transitions, 521 flow [2021-03-25 04:47:33,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 70 transitions, 516 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 04:47:33,089 INFO L241 Difference]: Finished difference. Result has 76 places, 64 transitions, 508 flow [2021-03-25 04:47:33,089 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=508, PETRI_PLACES=76, PETRI_TRANSITIONS=64} [2021-03-25 04:47:33,090 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 19 predicate places. [2021-03-25 04:47:33,090 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:33,090 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 64 transitions, 508 flow [2021-03-25 04:47:33,090 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 64 transitions, 508 flow [2021-03-25 04:47:33,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 64 transitions, 508 flow [2021-03-25 04:47:33,338 INFO L129 PetriNetUnfolder]: 998/1946 cut-off events. [2021-03-25 04:47:33,339 INFO L130 PetriNetUnfolder]: For 8766/15797 co-relation queries the response was YES. [2021-03-25 04:47:33,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9511 conditions, 1946 events. 998/1946 cut-off events. For 8766/15797 co-relation queries the response was YES. Maximal size of possible extension queue 398. Compared 15742 event pairs, 198 based on Foata normal form. 31/1612 useless extension candidates. Maximal degree in co-relation 9482. Up to 1471 conditions per place. [2021-03-25 04:47:33,372 INFO L142 LiptonReduction]: Number of co-enabled transitions 1288 [2021-03-25 04:47:33,438 INFO L154 LiptonReduction]: Checked pairs total: 272 [2021-03-25 04:47:33,438 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:33,438 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 348 [2021-03-25 04:47:33,439 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 64 transitions, 508 flow [2021-03-25 04:47:33,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 167.8) internal successors, (839), 5 states have internal predecessors, (839), 0 states have call successors, (0), 0 states 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 04:47:33,439 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:33,439 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 04:47:33,439 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 04:47:33,440 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:33,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:33,440 INFO L82 PathProgramCache]: Analyzing trace with hash 113911554, now seen corresponding path program 1 times [2021-03-25 04:47:33,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:33,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997302834] [2021-03-25 04:47:33,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:33,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:33,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:33,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:33,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:33,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:33,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:33,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:33,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:33,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:33,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:47:33,507 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 04:47:33,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997302834] [2021-03-25 04:47:33,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:33,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 04:47:33,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552081821] [2021-03-25 04:47:33,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 04:47:33,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:33,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 04:47:33,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 04:47:33,509 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 202 [2021-03-25 04:47:33,510 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 64 transitions, 508 flow. Second operand has 6 states, 6 states have (on average 167.83333333333334) internal successors, (1007), 6 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states 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 04:47:33,510 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:33,510 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 202 [2021-03-25 04:47:33,510 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:33,817 INFO L129 PetriNetUnfolder]: 1046/1933 cut-off events. [2021-03-25 04:47:33,818 INFO L130 PetriNetUnfolder]: For 9884/32941 co-relation queries the response was YES. [2021-03-25 04:47:33,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10555 conditions, 1933 events. 1046/1933 cut-off events. For 9884/32941 co-relation queries the response was YES. Maximal size of possible extension queue 397. Compared 14016 event pairs, 24 based on Foata normal form. 648/2163 useless extension candidates. Maximal degree in co-relation 10524. Up to 1592 conditions per place. [2021-03-25 04:47:33,839 INFO L132 encePairwiseOnDemand]: 195/202 looper letters, 10 selfloop transitions, 28 changer transitions 6/78 dead transitions. [2021-03-25 04:47:33,839 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 78 transitions, 702 flow [2021-03-25 04:47:33,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-25 04:47:33,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-25 04:47:33,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1547 transitions. [2021-03-25 04:47:33,843 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8509350935093509 [2021-03-25 04:47:33,843 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1547 transitions. [2021-03-25 04:47:33,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1547 transitions. [2021-03-25 04:47:33,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:33,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1547 transitions. [2021-03-25 04:47:33,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 171.88888888888889) internal successors, (1547), 9 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states 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 04:47:33,862 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 04:47:33,862 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 04:47:33,862 INFO L185 Difference]: Start difference. First operand has 76 places, 64 transitions, 508 flow. Second operand 9 states and 1547 transitions. [2021-03-25 04:47:33,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 78 transitions, 702 flow [2021-03-25 04:47:33,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 78 transitions, 644 flow, removed 18 selfloop flow, removed 5 redundant places. [2021-03-25 04:47:33,889 INFO L241 Difference]: Finished difference. Result has 82 places, 69 transitions, 585 flow [2021-03-25 04:47:33,889 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=585, PETRI_PLACES=82, PETRI_TRANSITIONS=69} [2021-03-25 04:47:33,889 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 25 predicate places. [2021-03-25 04:47:33,889 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:33,889 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 69 transitions, 585 flow [2021-03-25 04:47:33,890 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 69 transitions, 585 flow [2021-03-25 04:47:33,890 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 69 transitions, 585 flow [2021-03-25 04:47:34,011 INFO L129 PetriNetUnfolder]: 653/1371 cut-off events. [2021-03-25 04:47:34,012 INFO L130 PetriNetUnfolder]: For 10293/13083 co-relation queries the response was YES. [2021-03-25 04:47:34,020 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7511 conditions, 1371 events. 653/1371 cut-off events. For 10293/13083 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 10879 event pairs, 24 based on Foata normal form. 18/1087 useless extension candidates. Maximal degree in co-relation 7481. Up to 944 conditions per place. [2021-03-25 04:47:34,038 INFO L142 LiptonReduction]: Number of co-enabled transitions 1356 [2021-03-25 04:47:34,251 INFO L154 LiptonReduction]: Checked pairs total: 629 [2021-03-25 04:47:34,252 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 04:47:34,252 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 363 [2021-03-25 04:47:34,252 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 66 transitions, 559 flow [2021-03-25 04:47:34,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 167.83333333333334) internal successors, (1007), 6 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states 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 04:47:34,253 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:34,253 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] [2021-03-25 04:47:34,253 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 04:47:34,253 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:34,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:34,253 INFO L82 PathProgramCache]: Analyzing trace with hash -685955648, now seen corresponding path program 1 times [2021-03-25 04:47:34,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:34,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615607835] [2021-03-25 04:47:34,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:34,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:34,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:34,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:47:34,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:34,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:34,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:34,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:34,294 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 04:47:34,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615607835] [2021-03-25 04:47:34,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:34,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 04:47:34,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872711196] [2021-03-25 04:47:34,295 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 04:47:34,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:34,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 04:47:34,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 04:47:34,296 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 202 [2021-03-25 04:47:34,297 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 66 transitions, 559 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 04:47:34,297 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:34,297 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 202 [2021-03-25 04:47:34,297 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:34,426 INFO L129 PetriNetUnfolder]: 507/1134 cut-off events. [2021-03-25 04:47:34,426 INFO L130 PetriNetUnfolder]: For 6547/7185 co-relation queries the response was YES. [2021-03-25 04:47:34,432 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5963 conditions, 1134 events. 507/1134 cut-off events. For 6547/7185 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 8353 event pairs, 44 based on Foata normal form. 12/990 useless extension candidates. Maximal degree in co-relation 5931. Up to 804 conditions per place. [2021-03-25 04:47:34,437 INFO L132 encePairwiseOnDemand]: 199/202 looper letters, 4 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2021-03-25 04:47:34,437 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 56 transitions, 459 flow [2021-03-25 04:47:34,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 04:47:34,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 04:47:34,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 715 transitions. [2021-03-25 04:47:34,440 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8849009900990099 [2021-03-25 04:47:34,440 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 715 transitions. [2021-03-25 04:47:34,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 715 transitions. [2021-03-25 04:47:34,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:34,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 715 transitions. [2021-03-25 04:47:34,442 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 04:47:34,443 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 04:47:34,443 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 04:47:34,444 INFO L185 Difference]: Start difference. First operand has 82 places, 66 transitions, 559 flow. Second operand 4 states and 715 transitions. [2021-03-25 04:47:34,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 56 transitions, 459 flow [2021-03-25 04:47:34,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 56 transitions, 396 flow, removed 25 selfloop flow, removed 7 redundant places. [2021-03-25 04:47:34,463 INFO L241 Difference]: Finished difference. Result has 72 places, 55 transitions, 377 flow [2021-03-25 04:47:34,463 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=377, PETRI_PLACES=72, PETRI_TRANSITIONS=55} [2021-03-25 04:47:34,463 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 15 predicate places. [2021-03-25 04:47:34,463 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:34,463 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 55 transitions, 377 flow [2021-03-25 04:47:34,463 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 55 transitions, 377 flow [2021-03-25 04:47:34,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 55 transitions, 377 flow [2021-03-25 04:47:34,571 INFO L129 PetriNetUnfolder]: 506/1132 cut-off events. [2021-03-25 04:47:34,571 INFO L130 PetriNetUnfolder]: For 2435/2521 co-relation queries the response was YES. [2021-03-25 04:47:34,577 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4112 conditions, 1132 events. 506/1132 cut-off events. For 2435/2521 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 8666 event pairs, 44 based on Foata normal form. 4/978 useless extension candidates. Maximal degree in co-relation 4085. Up to 546 conditions per place. [2021-03-25 04:47:34,588 INFO L142 LiptonReduction]: Number of co-enabled transitions 886 [2021-03-25 04:47:34,621 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 04:47:34,621 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 04:47:34,621 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 158 [2021-03-25 04:47:34,622 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 55 transitions, 377 flow [2021-03-25 04:47:34,622 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 04:47:34,622 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:34,622 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] [2021-03-25 04:47:34,623 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 04:47:34,623 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:34,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:34,623 INFO L82 PathProgramCache]: Analyzing trace with hash 53471506, now seen corresponding path program 2 times [2021-03-25 04:47:34,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:34,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58924484] [2021-03-25 04:47:34,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 04:47:34,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:34,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:34,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:34,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:34,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:34,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:34,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:34,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:34,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:34,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 04:47:34,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 04:47:34,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 04:47:34,691 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 04:47:34,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58924484] [2021-03-25 04:47:34,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 04:47:34,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-25 04:47:34,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976285816] [2021-03-25 04:47:34,691 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 04:47:34,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 04:47:34,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 04:47:34,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-25 04:47:34,693 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 202 [2021-03-25 04:47:34,694 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 55 transitions, 377 flow. Second operand has 7 states, 7 states have (on average 167.85714285714286) internal successors, (1175), 7 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states 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 04:47:34,694 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 04:47:34,694 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 202 [2021-03-25 04:47:34,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 04:47:34,917 INFO L129 PetriNetUnfolder]: 1031/1818 cut-off events. [2021-03-25 04:47:34,917 INFO L130 PetriNetUnfolder]: For 3137/6489 co-relation queries the response was YES. [2021-03-25 04:47:34,929 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7213 conditions, 1818 events. 1031/1818 cut-off events. For 3137/6489 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 12275 event pairs, 0 based on Foata normal form. 327/1770 useless extension candidates. Maximal degree in co-relation 7184. Up to 791 conditions per place. [2021-03-25 04:47:34,936 INFO L132 encePairwiseOnDemand]: 195/202 looper letters, 6 selfloop transitions, 18 changer transitions 16/64 dead transitions. [2021-03-25 04:47:34,936 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 64 transitions, 491 flow [2021-03-25 04:47:34,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 04:47:34,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 04:47:34,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1367 transitions. [2021-03-25 04:47:34,940 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8459158415841584 [2021-03-25 04:47:34,940 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1367 transitions. [2021-03-25 04:47:34,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1367 transitions. [2021-03-25 04:47:34,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 04:47:34,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1367 transitions. [2021-03-25 04:47:34,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 170.875) internal successors, (1367), 8 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states 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 04:47:34,946 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 04:47:34,946 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 04:47:34,946 INFO L185 Difference]: Start difference. First operand has 72 places, 55 transitions, 377 flow. Second operand 8 states and 1367 transitions. [2021-03-25 04:47:34,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 64 transitions, 491 flow [2021-03-25 04:47:34,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 64 transitions, 460 flow, removed 13 selfloop flow, removed 2 redundant places. [2021-03-25 04:47:34,970 INFO L241 Difference]: Finished difference. Result has 80 places, 45 transitions, 319 flow [2021-03-25 04:47:34,970 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=319, PETRI_PLACES=80, PETRI_TRANSITIONS=45} [2021-03-25 04:47:34,971 INFO L343 CegarLoopForPetriNet]: 57 programPoint places, 23 predicate places. [2021-03-25 04:47:34,971 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 04:47:34,971 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 45 transitions, 319 flow [2021-03-25 04:47:34,971 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 45 transitions, 319 flow [2021-03-25 04:47:34,972 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 45 transitions, 319 flow [2021-03-25 04:47:34,989 INFO L129 PetriNetUnfolder]: 85/224 cut-off events. [2021-03-25 04:47:34,989 INFO L130 PetriNetUnfolder]: For 508/564 co-relation queries the response was YES. [2021-03-25 04:47:34,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 964 conditions, 224 events. 85/224 cut-off events. For 508/564 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1079 event pairs, 0 based on Foata normal form. 1/202 useless extension candidates. Maximal degree in co-relation 939. Up to 103 conditions per place. [2021-03-25 04:47:34,992 INFO L142 LiptonReduction]: Number of co-enabled transitions 446 [2021-03-25 04:47:35,559 WARN L205 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 184 [2021-03-25 04:47:35,749 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-03-25 04:47:37,562 WARN L205 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 338 DAG size of output: 264 [2021-03-25 04:47:38,021 WARN L205 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2021-03-25 04:47:38,320 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2021-03-25 04:47:38,539 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2021-03-25 04:47:39,026 WARN L205 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-03-25 04:47:39,490 WARN L205 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2021-03-25 04:47:39,497 INFO L154 LiptonReduction]: Checked pairs total: 75 [2021-03-25 04:47:39,498 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-25 04:47:39,498 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4527 [2021-03-25 04:47:39,498 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 40 transitions, 301 flow [2021-03-25 04:47:39,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 167.85714285714286) internal successors, (1175), 7 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states 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 04:47:39,499 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 04:47:39,499 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] [2021-03-25 04:47:39,499 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-25 04:47:39,499 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 04:47:39,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 04:47:39,499 INFO L82 PathProgramCache]: Analyzing trace with hash -239649036, now seen corresponding path program 1 times [2021-03-25 04:47:39,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 04:47:39,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027665358] [2021-03-25 04:47:39,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 04:47:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:47:39,524 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:47:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 04:47:39,551 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 04:47:39,580 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 04:47:39,580 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 04:47:39,580 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-25 04:47:39,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 04:47:39 BasicIcfg [2021-03-25 04:47:39,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 04:47:39,660 INFO L168 Benchmark]: Toolchain (without parser) took 25339.62 ms. Allocated memory was 255.9 MB in the beginning and 799.0 MB in the end (delta: 543.2 MB). Free memory was 233.3 MB in the beginning and 547.5 MB in the end (delta: -314.2 MB). Peak memory consumption was 227.4 MB. Max. memory is 16.0 GB. [2021-03-25 04:47:39,661 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 04:47:39,661 INFO L168 Benchmark]: CACSL2BoogieTranslator took 560.16 ms. Allocated memory was 255.9 MB in the beginning and 367.0 MB in the end (delta: 111.1 MB). Free memory was 233.3 MB in the beginning and 325.8 MB in the end (delta: -92.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-03-25 04:47:39,661 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.97 ms. Allocated memory is still 367.0 MB. Free memory was 325.8 MB in the beginning and 323.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:47:39,661 INFO L168 Benchmark]: Boogie Preprocessor took 59.03 ms. Allocated memory is still 367.0 MB. Free memory was 323.0 MB in the beginning and 320.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 04:47:39,661 INFO L168 Benchmark]: RCFGBuilder took 1720.22 ms. Allocated memory is still 367.0 MB. Free memory was 320.7 MB in the beginning and 272.9 MB in the end (delta: 47.9 MB). Peak memory consumption was 50.0 MB. Max. memory is 16.0 GB. [2021-03-25 04:47:39,662 INFO L168 Benchmark]: TraceAbstraction took 22922.36 ms. Allocated memory was 367.0 MB in the beginning and 799.0 MB in the end (delta: 432.0 MB). Free memory was 272.9 MB in the beginning and 547.5 MB in the end (delta: -274.6 MB). Peak memory consumption was 157.4 MB. Max. memory is 16.0 GB. [2021-03-25 04:47:39,663 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 560.16 ms. Allocated memory was 255.9 MB in the beginning and 367.0 MB in the end (delta: 111.1 MB). Free memory was 233.3 MB in the beginning and 325.8 MB in the end (delta: -92.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 70.97 ms. Allocated memory is still 367.0 MB. Free memory was 325.8 MB in the beginning and 323.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 59.03 ms. Allocated memory is still 367.0 MB. Free memory was 323.0 MB in the beginning and 320.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1720.22 ms. Allocated memory is still 367.0 MB. Free memory was 320.7 MB in the beginning and 272.9 MB in the end (delta: 47.9 MB). Peak memory consumption was 50.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 22922.36 ms. Allocated memory was 367.0 MB in the beginning and 799.0 MB in the end (delta: 432.0 MB). Free memory was 272.9 MB in the beginning and 547.5 MB in the end (delta: -274.6 MB). Peak memory consumption was 157.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7910.9ms, 123 PlacesBefore, 57 PlacesAfterwards, 112 TransitionsBefore, 45 TransitionsAfterwards, 2598 CoEnabledTransitionPairs, 6 FixpointIterations, 31 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 75 TotalNumberOfCompositions, 4306 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2405, positive: 2302, positive conditional: 0, positive unconditional: 2302, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1267, positive: 1239, positive conditional: 0, positive unconditional: 1239, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1267, positive: 1239, positive conditional: 0, positive unconditional: 1239, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2405, positive: 1063, positive conditional: 0, positive unconditional: 1063, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 1267, unknown conditional: 0, unknown unconditional: 1267] , Statistics on independence cache: Total cache size (in pairs): 173, Positive cache size: 157, Positive conditional cache size: 0, Positive unconditional cache size: 157, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3520.3ms, 53 PlacesBefore, 38 PlacesAfterwards, 37 TransitionsBefore, 27 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 2232 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 643, positive: 514, positive conditional: 0, positive unconditional: 514, negative: 129, negative conditional: 0, negative unconditional: 129, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 33, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 33, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 643, positive: 491, positive conditional: 0, positive unconditional: 491, negative: 119, negative conditional: 0, negative unconditional: 119, unknown: 33, unknown conditional: 0, unknown unconditional: 33] , Statistics on independence cache: Total cache size (in pairs): 188, Positive cache size: 165, Positive conditional cache size: 0, Positive unconditional cache size: 165, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.6ms, 39 PlacesBefore, 39 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 408 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 397 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 117, positive: 95, positive conditional: 0, positive unconditional: 95, 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: 117, positive: 95, positive conditional: 0, positive unconditional: 95, 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): 188, Positive cache size: 165, Positive conditional cache size: 0, Positive unconditional cache size: 165, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 116.7ms, 41 PlacesBefore, 40 PlacesAfterwards, 29 TransitionsBefore, 28 TransitionsAfterwards, 404 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 698 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 190, positive: 152, positive conditional: 0, positive unconditional: 152, negative: 38, negative conditional: 0, negative unconditional: 38, 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: 190, positive: 149, positive conditional: 0, positive unconditional: 149, negative: 38, negative conditional: 0, negative unconditional: 38, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 161, Positive cache size: 142, Positive conditional cache size: 0, Positive unconditional cache size: 142, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.6ms, 41 PlacesBefore, 41 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 428 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 257 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 36, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 36, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 166, Positive cache size: 144, Positive conditional cache size: 0, Positive unconditional cache size: 144, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.0ms, 43 PlacesBefore, 43 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 428 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 313 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 80, positive: 63, positive conditional: 0, positive unconditional: 63, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 80, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 170, Positive cache size: 148, Positive conditional cache size: 0, Positive unconditional cache size: 148, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.0ms, 47 PlacesBefore, 47 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 510 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 301 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 73, positive: 58, positive conditional: 0, positive unconditional: 58, 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: 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: 73, positive: 56, positive conditional: 0, positive unconditional: 56, 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): 172, Positive cache size: 150, Positive conditional cache size: 0, Positive unconditional cache size: 150, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.5ms, 53 PlacesBefore, 53 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 638 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 290 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 80, positive: 68, positive conditional: 0, positive unconditional: 68, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 80, positive: 67, positive conditional: 0, positive unconditional: 67, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 173, Positive cache size: 151, Positive conditional cache size: 0, Positive unconditional cache size: 151, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.9ms, 55 PlacesBefore, 55 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 638 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 392 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 134, positive: 119, positive conditional: 0, positive unconditional: 119, 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: 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: 134, positive: 119, positive conditional: 0, positive unconditional: 119, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 173, Positive cache size: 151, Positive conditional cache size: 0, Positive unconditional cache size: 151, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 53.4ms, 60 PlacesBefore, 60 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 686 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 483 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 132, positive: 113, positive conditional: 0, positive unconditional: 113, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 132, positive: 112, positive conditional: 0, positive unconditional: 112, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 174, Positive cache size: 152, Positive conditional cache size: 0, Positive unconditional cache size: 152, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 59.3ms, 61 PlacesBefore, 61 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 710 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 493 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 151, positive: 132, positive conditional: 0, positive unconditional: 132, negative: 19, negative conditional: 0, negative unconditional: 19, 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: 151, positive: 132, positive conditional: 0, positive unconditional: 132, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 174, Positive cache size: 152, Positive conditional cache size: 0, Positive unconditional cache size: 152, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 74.5ms, 63 PlacesBefore, 63 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 744 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 538 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 144, positive: 124, positive conditional: 0, positive unconditional: 124, 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: 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: 144, positive: 124, positive conditional: 0, positive unconditional: 124, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 174, Positive cache size: 152, Positive conditional cache size: 0, Positive unconditional cache size: 152, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 61.0ms, 67 PlacesBefore, 67 PlacesAfterwards, 46 TransitionsBefore, 46 TransitionsAfterwards, 742 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 555 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 155, positive: 134, positive conditional: 0, positive unconditional: 134, 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: 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: 155, positive: 134, positive conditional: 0, positive unconditional: 134, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 174, Positive cache size: 152, Positive conditional cache size: 0, Positive unconditional cache size: 152, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 555.6ms, 68 PlacesBefore, 68 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 200 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 84, positive: 78, positive conditional: 0, positive unconditional: 78, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 84, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 175, Positive cache size: 153, Positive conditional cache size: 0, Positive unconditional cache size: 153, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 348.1ms, 76 PlacesBefore, 76 PlacesAfterwards, 64 TransitionsBefore, 64 TransitionsAfterwards, 1288 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 272 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 109, positive: 102, positive conditional: 0, positive unconditional: 102, negative: 7, negative conditional: 0, negative unconditional: 7, 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: 109, positive: 102, positive conditional: 0, positive unconditional: 102, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 175, Positive cache size: 153, Positive conditional cache size: 0, Positive unconditional cache size: 153, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 362.2ms, 82 PlacesBefore, 82 PlacesAfterwards, 69 TransitionsBefore, 66 TransitionsAfterwards, 1356 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 629 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 315, positive: 301, positive conditional: 0, positive unconditional: 301, negative: 14, negative conditional: 0, negative unconditional: 14, 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: 315, positive: 298, positive conditional: 0, positive unconditional: 298, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 167, Positive cache size: 146, Positive conditional cache size: 0, Positive unconditional cache size: 146, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 157.7ms, 72 PlacesBefore, 72 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 886 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , 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: 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] , Statistics on independence cache: Total cache size (in pairs): 167, Positive cache size: 146, Positive conditional cache size: 0, Positive unconditional cache size: 146, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4526.2ms, 80 PlacesBefore, 69 PlacesAfterwards, 45 TransitionsBefore, 40 TransitionsAfterwards, 446 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 75 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 75, positive: 75, positive conditional: 0, positive unconditional: 75, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, 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: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 75, positive: 65, positive conditional: 0, positive unconditional: 65, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , Statistics on independence cache: Total cache size (in pairs): 86, Positive cache size: 78, Positive conditional cache size: 0, Positive unconditional cache size: 78, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - 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_p3_EAX = 0; [L714] 0 int __unbuffered_p3_EBX = 0; [L716] 0 int a = 0; [L718] 0 int b = 0; [L719] 0 _Bool main$tmp_guard0; [L720] 0 _Bool main$tmp_guard1; [L722] 0 int x = 0; [L724] 0 int y = 0; [L726] 0 int z = 0; [L727] 0 _Bool z$flush_delayed; [L728] 0 int z$mem_tmp; [L729] 0 _Bool z$r_buff0_thd0; [L730] 0 _Bool z$r_buff0_thd1; [L731] 0 _Bool z$r_buff0_thd2; [L732] 0 _Bool z$r_buff0_thd3; [L733] 0 _Bool z$r_buff0_thd4; [L734] 0 _Bool z$r_buff1_thd0; [L735] 0 _Bool z$r_buff1_thd1; [L736] 0 _Bool z$r_buff1_thd2; [L737] 0 _Bool z$r_buff1_thd3; [L738] 0 _Bool z$r_buff1_thd4; [L739] 0 _Bool z$read_delayed; [L740] 0 int *z$read_delayed_var; [L741] 0 int z$w_buff0; [L742] 0 _Bool z$w_buff0_used; [L743] 0 int z$w_buff1; [L744] 0 _Bool z$w_buff1_used; [L745] 0 _Bool weak$$choice0; [L746] 0 _Bool weak$$choice2; [L844] 0 pthread_t t1261; [L845] FCALL, FORK 0 pthread_create(&t1261, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L846] 0 pthread_t t1262; [L847] FCALL, FORK 0 pthread_create(&t1262, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L848] 0 pthread_t t1263; [L849] FCALL, FORK 0 pthread_create(&t1263, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L850] 0 pthread_t t1264; [L851] FCALL, FORK 0 pthread_create(&t1264, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L800] 4 z$w_buff1 = z$w_buff0 [L801] 4 z$w_buff0 = 2 [L802] 4 z$w_buff1_used = z$w_buff0_used [L803] 4 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 4 !(!expression) [L805] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L806] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L807] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L808] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L809] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L810] 4 z$r_buff0_thd4 = (_Bool)1 [L813] 4 a = 1 [L816] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L819] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L750] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L753] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L765] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L768] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L780] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L783] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L786] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L786] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L786] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L786] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L787] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L787] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L788] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L788] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L789] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L789] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L790] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L790] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L758] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L760] 1 return 0; [L773] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L775] 2 return 0; [L793] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L795] 3 return 0; [L822] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L822] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L823] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L823] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L824] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L824] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L825] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L825] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L826] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L826] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L829] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L831] 4 return 0; [L853] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L857] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L857] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L857] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L857] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L858] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L858] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L859] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L859] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L860] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L860] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L861] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L861] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L864] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L865] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L866] 0 z$flush_delayed = weak$$choice2 [L867] 0 z$mem_tmp = z [L868] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L868] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L869] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L869] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L870] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L870] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L871] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L871] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L872] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L872] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L873] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L873] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L874] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L874] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L875] 0 main$tmp_guard1 = !(x == 2 && y == 2 && z == 2 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L876] EXPR 0 z$flush_delayed ? z$mem_tmp : z [L876] 0 z = z$flush_delayed ? z$mem_tmp : z [L877] 0 z$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=51, weak$$choice2=255, x=2, y=2, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 115 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 22711.3ms, OverallIterations: 18, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 2714.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8013.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 58 SDtfs, 50 SDslu, 26 SDs, 0 SdLazy, 393 SolverSat, 124 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 463.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 448.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=585occurred in iteration=15, InterpolantAutomatonStates: 83, 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: 61.5ms SsaConstructionTime, 552.7ms SatisfiabilityAnalysisTime, 1110.0ms InterpolantComputationTime, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 268 ConstructedInterpolants, 0 QuantifiedInterpolants, 1293 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 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...