/usr/bin/java -Xmx8000000000 -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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_power.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 07:31:14,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 07:31:14,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 07:31:14,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-13 07:31:14,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-13 07:31:14,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-13 07:31:14,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-13 07:31:14,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-13 07:31:14,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-13 07:31:14,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-13 07:31:14,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-13 07:31:14,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-13 07:31:14,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-13 07:31:14,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-13 07:31:14,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-13 07:31:14,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-13 07:31:14,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-13 07:31:14,325 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-13 07:31:14,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-13 07:31:14,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-13 07:31:14,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-13 07:31:14,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-13 07:31:14,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-13 07:31:14,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-13 07:31:14,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-13 07:31:14,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-13 07:31:14,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-13 07:31:14,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-13 07:31:14,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-13 07:31:14,338 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-13 07:31:14,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-13 07:31:14,339 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-13 07:31:14,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-13 07:31:14,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-13 07:31:14,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-13 07:31:14,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-13 07:31:14,342 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-NoLbe.epf [2021-06-13 07:31:14,361 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 07:31:14,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 07:31:14,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 07:31:14,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 07:31:14,362 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 07:31:14,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 07:31:14,363 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 07:31:14,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 07:31:14,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 07:31:14,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 07:31:14,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 07:31:14,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 07:31:14,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 07:31:14,364 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 07:31:14,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 07:31:14,364 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 07:31:14,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 07:31:14,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 07:31:14,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 07:31:14,365 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 07:31:14,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 07:31:14,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 07:31:14,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 07:31:14,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 07:31:14,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 07:31:14,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 07:31:14,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 07:31:14,366 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 07:31:14,366 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-13 07:31:14,366 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 07:31:14,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 07:31:14,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 07:31:14,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 07:31:14,666 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-13 07:31:14,667 INFO L275 PluginConnector]: CDTParser initialized [2021-06-13 07:31:14,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_power.oepc.i [2021-06-13 07:31:14,733 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b99b5a438/aec07f4c27db44c5bc4dbfe75748c985/FLAG356bb971e [2021-06-13 07:31:15,304 INFO L306 CDTParser]: Found 1 translation units. [2021-06-13 07:31:15,305 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_power.oepc.i [2021-06-13 07:31:15,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b99b5a438/aec07f4c27db44c5bc4dbfe75748c985/FLAG356bb971e [2021-06-13 07:31:15,726 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b99b5a438/aec07f4c27db44c5bc4dbfe75748c985 [2021-06-13 07:31:15,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 07:31:15,729 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-13 07:31:15,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-13 07:31:15,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-13 07:31:15,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-13 07:31:15,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 07:31:15" (1/1) ... [2021-06-13 07:31:15,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78207019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:15, skipping insertion in model container [2021-06-13 07:31:15,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 07:31:15" (1/1) ... [2021-06-13 07:31:15,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-13 07:31:15,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-13 07:31:15,941 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_power.oepc.i[952,965] [2021-06-13 07:31:16,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 07:31:16,071 INFO L203 MainTranslator]: Completed pre-run [2021-06-13 07:31:16,081 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_power.oepc.i[952,965] [2021-06-13 07:31:16,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 07:31:16,179 INFO L208 MainTranslator]: Completed translation [2021-06-13 07:31:16,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:16 WrapperNode [2021-06-13 07:31:16,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-13 07:31:16,181 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 07:31:16,181 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 07:31:16,181 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 07:31:16,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:16" (1/1) ... [2021-06-13 07:31:16,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:16" (1/1) ... [2021-06-13 07:31:16,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 07:31:16,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 07:31:16,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 07:31:16,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 07:31:16,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:16" (1/1) ... [2021-06-13 07:31:16,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:16" (1/1) ... [2021-06-13 07:31:16,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:16" (1/1) ... [2021-06-13 07:31:16,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:16" (1/1) ... [2021-06-13 07:31:16,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:16" (1/1) ... [2021-06-13 07:31:16,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:16" (1/1) ... [2021-06-13 07:31:16,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:16" (1/1) ... [2021-06-13 07:31:16,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 07:31:16,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 07:31:16,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 07:31:16,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 07:31:16,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:16" (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 [2021-06-13 07:31:16,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-13 07:31:16,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-13 07:31:16,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-13 07:31:16,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-13 07:31:16,343 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-13 07:31:16,344 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-13 07:31:16,344 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-13 07:31:16,344 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-13 07:31:16,345 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-13 07:31:16,345 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-13 07:31:16,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-13 07:31:16,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-13 07:31:16,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 07:31:16,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 07:31:16,348 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 07:31:17,975 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 07:31:17,976 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-06-13 07:31:17,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 07:31:17 BoogieIcfgContainer [2021-06-13 07:31:17,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 07:31:17,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 07:31:17,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 07:31:17,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 07:31:17,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.06 07:31:15" (1/3) ... [2021-06-13 07:31:17,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79225cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 07:31:17, skipping insertion in model container [2021-06-13 07:31:17,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:31:16" (2/3) ... [2021-06-13 07:31:17,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79225cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 07:31:17, skipping insertion in model container [2021-06-13 07:31:17,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 07:31:17" (3/3) ... [2021-06-13 07:31:17,988 INFO L111 eAbstractionObserver]: Analyzing ICFG safe017_power.oepc.i [2021-06-13 07:31:17,993 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 07:31:17,994 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-06-13 07:31:17,995 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 07:31:18,028 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,028 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,028 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,028 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,028 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,029 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,029 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,029 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,029 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,029 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,029 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,029 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,030 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,030 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,030 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,030 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,030 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,030 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,030 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,031 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,031 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,031 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,031 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,031 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,032 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,032 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,032 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,033 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,033 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,033 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,034 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,034 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,034 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,035 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,036 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,037 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,037 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,037 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,037 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,037 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,037 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,037 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,038 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,038 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,038 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,038 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,038 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,038 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,038 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,039 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,040 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,040 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,040 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,040 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,041 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,041 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,042 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,042 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,042 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,042 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,042 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,042 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,042 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,042 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,043 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,043 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,043 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,043 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,043 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,044 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,044 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,044 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,046 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,046 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,046 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,048 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,048 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,048 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,049 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,051 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,051 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,052 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,053 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,055 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,055 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,061 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,061 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,062 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,062 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,063 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,063 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,063 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,064 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,064 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,064 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,064 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,064 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,064 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,065 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:31:18,066 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-13 07:31:18,086 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-13 07:31:18,115 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 07:31:18,115 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 07:31:18,115 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 07:31:18,115 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 07:31:18,115 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 07:31:18,115 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 07:31:18,115 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 07:31:18,115 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == P0======== [2021-06-13 07:31:18,127 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 104 transitions, 223 flow [2021-06-13 07:31:18,172 INFO L129 PetriNetUnfolder]: 2/101 cut-off events. [2021-06-13 07:31:18,172 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 07:31:18,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 101 events. 2/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2021-06-13 07:31:18,175 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 104 transitions, 223 flow [2021-06-13 07:31:18,177 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2021-06-13 07:31:18,178 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-13 07:31:18,178 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 07:31:18,179 INFO L301 ceAbstractionStarter]: Result for error location P0 was SAFE (1/3) [2021-06-13 07:31:18,180 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-13 07:31:18,182 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 07:31:18,182 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 07:31:18,182 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 07:31:18,182 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 07:31:18,182 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 07:31:18,182 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 07:31:18,182 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 07:31:18,182 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 07:31:18,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 104 transitions, 223 flow [2021-06-13 07:31:18,207 INFO L129 PetriNetUnfolder]: 2/101 cut-off events. [2021-06-13 07:31:18,207 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 07:31:18,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 101 events. 2/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2021-06-13 07:31:18,208 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 104 transitions, 223 flow [2021-06-13 07:31:18,210 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 89 transitions, 187 flow [2021-06-13 07:31:18,226 INFO L129 PetriNetUnfolder]: 1/88 cut-off events. [2021-06-13 07:31:18,226 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 07:31:18,226 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:18,227 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:18,227 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:18,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:18,232 INFO L82 PathProgramCache]: Analyzing trace with hash -247046329, now seen corresponding path program 1 times [2021-06-13 07:31:18,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:18,265 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666920250] [2021-06-13 07:31:18,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:18,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:18,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:18,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:18,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:18,642 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:31:18,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:31:18,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:18,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:18,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:18,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:18,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:18,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:18,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:18,684 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:18,685 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666920250] [2021-06-13 07:31:18,686 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666920250] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:18,686 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:18,686 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-13 07:31:18,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34359798] [2021-06-13 07:31:18,694 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-13 07:31:18,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:18,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-13 07:31:18,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-13 07:31:18,710 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 104 [2021-06-13 07:31:18,716 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 89 transitions, 187 flow. Second operand has 6 states, 6 states have (on average 93.16666666666667) internal successors, (559), 6 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:18,716 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:18,716 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 104 [2021-06-13 07:31:18,717 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:18,868 INFO L129 PetriNetUnfolder]: 3/104 cut-off events. [2021-06-13 07:31:18,868 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 07:31:18,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 104 events. 3/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 98 event pairs, 0 based on Foata normal form. 4/106 useless extension candidates. Maximal degree in co-relation 87. Up to 7 conditions per place. [2021-06-13 07:31:18,871 INFO L132 encePairwiseOnDemand]: 97/104 looper letters, 6 selfloop transitions, 2 changer transitions 11/98 dead transitions. [2021-06-13 07:31:18,871 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 98 transitions, 241 flow [2021-06-13 07:31:18,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 07:31:18,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-13 07:31:18,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 850 transitions. [2021-06-13 07:31:18,888 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9081196581196581 [2021-06-13 07:31:18,889 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 850 transitions. [2021-06-13 07:31:18,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 850 transitions. [2021-06-13 07:31:18,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:18,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 850 transitions. [2021-06-13 07:31:18,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 94.44444444444444) internal successors, (850), 9 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) [2021-06-13 07:31:18,911 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 104.0) internal successors, (1040), 10 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:18,912 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 104.0) internal successors, (1040), 10 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:18,913 INFO L185 Difference]: Start difference. First operand has 98 places, 89 transitions, 187 flow. Second operand 9 states and 850 transitions. [2021-06-13 07:31:18,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 98 transitions, 241 flow [2021-06-13 07:31:18,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 98 transitions, 238 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-13 07:31:18,920 INFO L241 Difference]: Finished difference. Result has 110 places, 87 transitions, 200 flow [2021-06-13 07:31:18,922 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=200, PETRI_PLACES=110, PETRI_TRANSITIONS=87} [2021-06-13 07:31:18,923 INFO L335 CegarLoopForPetriNet]: 98 programPoint places, 12 predicate places. [2021-06-13 07:31:18,923 INFO L482 AbstractCegarLoop]: Abstraction has has 110 places, 87 transitions, 200 flow [2021-06-13 07:31:18,923 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 93.16666666666667) internal successors, (559), 6 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:18,923 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:18,924 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:18,924 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 07:31:18,924 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:18,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:18,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1680433144, now seen corresponding path program 1 times [2021-06-13 07:31:18,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:18,926 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270252513] [2021-06-13 07:31:18,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:19,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:19,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:19,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:19,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:19,077 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:31:19,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:31:19,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:19,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:19,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:19,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:19,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:19,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:19,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:19,110 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:19,110 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270252513] [2021-06-13 07:31:19,111 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270252513] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:19,111 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:19,111 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-13 07:31:19,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666063780] [2021-06-13 07:31:19,112 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-13 07:31:19,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:19,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-13 07:31:19,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-13 07:31:19,115 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 104 [2021-06-13 07:31:19,115 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 87 transitions, 200 flow. Second operand has 6 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:19,116 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:19,116 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 104 [2021-06-13 07:31:19,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:19,256 INFO L129 PetriNetUnfolder]: 28/189 cut-off events. [2021-06-13 07:31:19,257 INFO L130 PetriNetUnfolder]: For 40/60 co-relation queries the response was YES. [2021-06-13 07:31:19,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 189 events. 28/189 cut-off events. For 40/60 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 573 event pairs, 6 based on Foata normal form. 4/188 useless extension candidates. Maximal degree in co-relation 291. Up to 38 conditions per place. [2021-06-13 07:31:19,260 INFO L132 encePairwiseOnDemand]: 97/104 looper letters, 10 selfloop transitions, 3 changer transitions 19/109 dead transitions. [2021-06-13 07:31:19,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 109 transitions, 329 flow [2021-06-13 07:31:19,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 07:31:19,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-13 07:31:19,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 844 transitions. [2021-06-13 07:31:19,262 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9017094017094017 [2021-06-13 07:31:19,262 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 844 transitions. [2021-06-13 07:31:19,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 844 transitions. [2021-06-13 07:31:19,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:19,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 844 transitions. [2021-06-13 07:31:19,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 93.77777777777777) internal successors, (844), 9 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:19,267 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 104.0) internal successors, (1040), 10 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:19,267 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 104.0) internal successors, (1040), 10 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:19,267 INFO L185 Difference]: Start difference. First operand has 110 places, 87 transitions, 200 flow. Second operand 9 states and 844 transitions. [2021-06-13 07:31:19,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 109 transitions, 329 flow [2021-06-13 07:31:19,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 109 transitions, 295 flow, removed 14 selfloop flow, removed 8 redundant places. [2021-06-13 07:31:19,273 INFO L241 Difference]: Finished difference. Result has 110 places, 89 transitions, 227 flow [2021-06-13 07:31:19,273 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=227, PETRI_PLACES=110, PETRI_TRANSITIONS=89} [2021-06-13 07:31:19,274 INFO L335 CegarLoopForPetriNet]: 98 programPoint places, 12 predicate places. [2021-06-13 07:31:19,274 INFO L482 AbstractCegarLoop]: Abstraction has has 110 places, 89 transitions, 227 flow [2021-06-13 07:31:19,275 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:19,275 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:19,275 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:19,275 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-13 07:31:19,275 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:19,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:19,275 INFO L82 PathProgramCache]: Analyzing trace with hash 84990951, now seen corresponding path program 1 times [2021-06-13 07:31:19,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:19,276 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360079392] [2021-06-13 07:31:19,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:19,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:19,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:19,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:19,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:19,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:19,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:19,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 07:31:19,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:19,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 07:31:19,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:19,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:31:19,432 INFO L142 QuantifierPusher]: treesize reduction 26, result has 54.4 percent of original size [2021-06-13 07:31:19,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-13 07:31:19,452 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:31:19,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:31:19,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:19,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:19,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:19,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:19,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:19,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:19,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:19,493 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:19,493 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360079392] [2021-06-13 07:31:19,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360079392] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:19,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:19,493 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-13 07:31:19,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399462978] [2021-06-13 07:31:19,497 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 07:31:19,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:19,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 07:31:19,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-06-13 07:31:19,500 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 104 [2021-06-13 07:31:19,502 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 89 transitions, 227 flow. Second operand has 10 states, 10 states have (on average 84.1) internal successors, (841), 10 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:19,502 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:19,502 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 104 [2021-06-13 07:31:19,502 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:19,988 INFO L129 PetriNetUnfolder]: 556/1144 cut-off events. [2021-06-13 07:31:19,989 INFO L130 PetriNetUnfolder]: For 819/819 co-relation queries the response was YES. [2021-06-13 07:31:19,994 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2671 conditions, 1144 events. 556/1144 cut-off events. For 819/819 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 6413 event pairs, 201 based on Foata normal form. 30/1087 useless extension candidates. Maximal degree in co-relation 2614. Up to 528 conditions per place. [2021-06-13 07:31:20,000 INFO L132 encePairwiseOnDemand]: 90/104 looper letters, 15 selfloop transitions, 11 changer transitions 46/144 dead transitions. [2021-06-13 07:31:20,000 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 144 transitions, 513 flow [2021-06-13 07:31:20,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-13 07:31:20,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-06-13 07:31:20,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1324 transitions. [2021-06-13 07:31:20,004 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8487179487179487 [2021-06-13 07:31:20,004 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1324 transitions. [2021-06-13 07:31:20,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1324 transitions. [2021-06-13 07:31:20,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:20,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1324 transitions. [2021-06-13 07:31:20,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 88.26666666666667) internal successors, (1324), 15 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:20,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 104.0) internal successors, (1664), 16 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:20,011 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 104.0) internal successors, (1664), 16 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:20,011 INFO L185 Difference]: Start difference. First operand has 110 places, 89 transitions, 227 flow. Second operand 15 states and 1324 transitions. [2021-06-13 07:31:20,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 144 transitions, 513 flow [2021-06-13 07:31:20,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 144 transitions, 492 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-06-13 07:31:20,019 INFO L241 Difference]: Finished difference. Result has 125 places, 96 transitions, 327 flow [2021-06-13 07:31:20,020 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=327, PETRI_PLACES=125, PETRI_TRANSITIONS=96} [2021-06-13 07:31:20,020 INFO L335 CegarLoopForPetriNet]: 98 programPoint places, 27 predicate places. [2021-06-13 07:31:20,020 INFO L482 AbstractCegarLoop]: Abstraction has has 125 places, 96 transitions, 327 flow [2021-06-13 07:31:20,020 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 84.1) internal successors, (841), 10 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:20,020 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:20,021 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:20,021 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-13 07:31:20,021 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:20,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:20,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1123159115, now seen corresponding path program 1 times [2021-06-13 07:31:20,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:20,022 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659550328] [2021-06-13 07:31:20,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:20,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:20,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:20,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:20,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:20,078 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:31:20,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:31:20,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:20,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:20,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:20,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:20,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:20,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:20,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:20,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:20,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659550328] [2021-06-13 07:31:20,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659550328] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:20,110 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:20,110 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-13 07:31:20,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047083924] [2021-06-13 07:31:20,110 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-13 07:31:20,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:20,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-13 07:31:20,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-13 07:31:20,112 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 104 [2021-06-13 07:31:20,112 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 96 transitions, 327 flow. Second operand has 6 states, 6 states have (on average 91.5) internal successors, (549), 6 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:20,112 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:20,113 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 104 [2021-06-13 07:31:20,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:20,393 INFO L129 PetriNetUnfolder]: 222/825 cut-off events. [2021-06-13 07:31:20,393 INFO L130 PetriNetUnfolder]: For 2421/2501 co-relation queries the response was YES. [2021-06-13 07:31:20,398 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2703 conditions, 825 events. 222/825 cut-off events. For 2421/2501 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 5544 event pairs, 85 based on Foata normal form. 22/796 useless extension candidates. Maximal degree in co-relation 2636. Up to 242 conditions per place. [2021-06-13 07:31:20,402 INFO L132 encePairwiseOnDemand]: 98/104 looper letters, 15 selfloop transitions, 4 changer transitions 10/112 dead transitions. [2021-06-13 07:31:20,402 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 112 transitions, 513 flow [2021-06-13 07:31:20,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 07:31:20,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-13 07:31:20,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 838 transitions. [2021-06-13 07:31:20,404 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8952991452991453 [2021-06-13 07:31:20,404 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 838 transitions. [2021-06-13 07:31:20,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 838 transitions. [2021-06-13 07:31:20,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:20,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 838 transitions. [2021-06-13 07:31:20,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 93.11111111111111) internal successors, (838), 9 states have internal predecessors, (838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:20,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 104.0) internal successors, (1040), 10 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:20,409 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 104.0) internal successors, (1040), 10 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:20,409 INFO L185 Difference]: Start difference. First operand has 125 places, 96 transitions, 327 flow. Second operand 9 states and 838 transitions. [2021-06-13 07:31:20,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 112 transitions, 513 flow [2021-06-13 07:31:20,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 112 transitions, 481 flow, removed 14 selfloop flow, removed 5 redundant places. [2021-06-13 07:31:20,417 INFO L241 Difference]: Finished difference. Result has 126 places, 97 transitions, 354 flow [2021-06-13 07:31:20,417 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=354, PETRI_PLACES=126, PETRI_TRANSITIONS=97} [2021-06-13 07:31:20,417 INFO L335 CegarLoopForPetriNet]: 98 programPoint places, 28 predicate places. [2021-06-13 07:31:20,417 INFO L482 AbstractCegarLoop]: Abstraction has has 126 places, 97 transitions, 354 flow [2021-06-13 07:31:20,418 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 91.5) internal successors, (549), 6 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:20,418 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:20,418 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:20,418 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-13 07:31:20,418 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:20,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:20,419 INFO L82 PathProgramCache]: Analyzing trace with hash 846448187, now seen corresponding path program 1 times [2021-06-13 07:31:20,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:20,419 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305519464] [2021-06-13 07:31:20,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:20,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:20,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:20,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:20,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:20,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:20,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:20,492 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:31:20,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:31:20,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:20,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:20,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:20,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:20,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:20,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:20,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:20,533 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:20,533 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305519464] [2021-06-13 07:31:20,534 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305519464] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:20,534 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:20,534 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:31:20,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260893807] [2021-06-13 07:31:20,535 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:31:20,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:20,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:31:20,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:31:20,537 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 104 [2021-06-13 07:31:20,537 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 97 transitions, 354 flow. Second operand has 7 states, 7 states have (on average 90.42857142857143) internal successors, (633), 7 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:20,537 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:20,537 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 104 [2021-06-13 07:31:20,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:20,783 INFO L129 PetriNetUnfolder]: 277/1007 cut-off events. [2021-06-13 07:31:20,783 INFO L130 PetriNetUnfolder]: For 4258/4533 co-relation queries the response was YES. [2021-06-13 07:31:20,789 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3541 conditions, 1007 events. 277/1007 cut-off events. For 4258/4533 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 7326 event pairs, 135 based on Foata normal form. 38/965 useless extension candidates. Maximal degree in co-relation 3470. Up to 310 conditions per place. [2021-06-13 07:31:20,793 INFO L132 encePairwiseOnDemand]: 95/104 looper letters, 12 selfloop transitions, 5 changer transitions 10/109 dead transitions. [2021-06-13 07:31:20,794 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 109 transitions, 537 flow [2021-06-13 07:31:20,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 07:31:20,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 07:31:20,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 647 transitions. [2021-06-13 07:31:20,796 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8887362637362637 [2021-06-13 07:31:20,796 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 647 transitions. [2021-06-13 07:31:20,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 647 transitions. [2021-06-13 07:31:20,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:20,796 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 647 transitions. [2021-06-13 07:31:20,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 92.42857142857143) internal successors, (647), 7 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:20,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 104.0) internal successors, (832), 8 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:20,799 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 104.0) internal successors, (832), 8 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:20,799 INFO L185 Difference]: Start difference. First operand has 126 places, 97 transitions, 354 flow. Second operand 7 states and 647 transitions. [2021-06-13 07:31:20,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 109 transitions, 537 flow [2021-06-13 07:31:20,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 109 transitions, 493 flow, removed 18 selfloop flow, removed 6 redundant places. [2021-06-13 07:31:20,810 INFO L241 Difference]: Finished difference. Result has 125 places, 97 transitions, 358 flow [2021-06-13 07:31:20,810 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=358, PETRI_PLACES=125, PETRI_TRANSITIONS=97} [2021-06-13 07:31:20,810 INFO L335 CegarLoopForPetriNet]: 98 programPoint places, 27 predicate places. [2021-06-13 07:31:20,810 INFO L482 AbstractCegarLoop]: Abstraction has has 125 places, 97 transitions, 358 flow [2021-06-13 07:31:20,811 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 90.42857142857143) internal successors, (633), 7 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:20,811 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:20,811 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:20,811 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-13 07:31:20,811 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:20,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:20,811 INFO L82 PathProgramCache]: Analyzing trace with hash -311223039, now seen corresponding path program 2 times [2021-06-13 07:31:20,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:20,812 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927107114] [2021-06-13 07:31:20,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:20,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:20,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:20,871 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:20,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:20,877 INFO L142 QuantifierPusher]: treesize reduction 26, result has 51.9 percent of original size [2021-06-13 07:31:20,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-13 07:31:20,893 INFO L142 QuantifierPusher]: treesize reduction 26, result has 54.4 percent of original size [2021-06-13 07:31:20,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-13 07:31:20,912 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:31:20,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:31:20,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:20,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:20,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:20,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:20,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:20,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:20,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:20,950 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:20,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927107114] [2021-06-13 07:31:20,950 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927107114] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:20,950 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:20,951 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 07:31:20,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843385963] [2021-06-13 07:31:20,951 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 07:31:20,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:20,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 07:31:20,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-13 07:31:20,953 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 104 [2021-06-13 07:31:20,953 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 97 transitions, 358 flow. Second operand has 8 states, 8 states have (on average 86.25) internal successors, (690), 8 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:20,953 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:20,954 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 104 [2021-06-13 07:31:20,954 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:21,497 INFO L129 PetriNetUnfolder]: 498/1070 cut-off events. [2021-06-13 07:31:21,497 INFO L130 PetriNetUnfolder]: For 4565/4882 co-relation queries the response was YES. [2021-06-13 07:31:21,503 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4323 conditions, 1070 events. 498/1070 cut-off events. For 4565/4882 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 5732 event pairs, 173 based on Foata normal form. 24/1063 useless extension candidates. Maximal degree in co-relation 4250. Up to 566 conditions per place. [2021-06-13 07:31:21,508 INFO L132 encePairwiseOnDemand]: 93/104 looper letters, 25 selfloop transitions, 8 changer transitions 38/145 dead transitions. [2021-06-13 07:31:21,509 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 145 transitions, 864 flow [2021-06-13 07:31:21,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-13 07:31:21,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-13 07:31:21,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1180 transitions. [2021-06-13 07:31:21,512 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8727810650887574 [2021-06-13 07:31:21,512 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1180 transitions. [2021-06-13 07:31:21,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1180 transitions. [2021-06-13 07:31:21,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:21,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1180 transitions. [2021-06-13 07:31:21,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 90.76923076923077) internal successors, (1180), 13 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:21,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 104.0) internal successors, (1456), 14 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:21,519 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 104.0) internal successors, (1456), 14 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:21,519 INFO L185 Difference]: Start difference. First operand has 125 places, 97 transitions, 358 flow. Second operand 13 states and 1180 transitions. [2021-06-13 07:31:21,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 145 transitions, 864 flow [2021-06-13 07:31:21,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 145 transitions, 820 flow, removed 17 selfloop flow, removed 6 redundant places. [2021-06-13 07:31:21,528 INFO L241 Difference]: Finished difference. Result has 137 places, 99 transitions, 401 flow [2021-06-13 07:31:21,528 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=401, PETRI_PLACES=137, PETRI_TRANSITIONS=99} [2021-06-13 07:31:21,528 INFO L335 CegarLoopForPetriNet]: 98 programPoint places, 39 predicate places. [2021-06-13 07:31:21,528 INFO L482 AbstractCegarLoop]: Abstraction has has 137 places, 99 transitions, 401 flow [2021-06-13 07:31:21,529 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 86.25) internal successors, (690), 8 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:21,529 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:21,529 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:21,529 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-13 07:31:21,529 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:21,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:21,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1963454941, now seen corresponding path program 3 times [2021-06-13 07:31:21,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:21,530 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107880914] [2021-06-13 07:31:21,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:21,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:21,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:21,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:21,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:21,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:21,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 07:31:21,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:21,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:31:21,672 INFO L142 QuantifierPusher]: treesize reduction 17, result has 45.2 percent of original size [2021-06-13 07:31:21,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-13 07:31:21,685 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:31:21,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:31:21,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:21,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:21,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:21,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:21,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:21,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:21,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:21,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:21,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107880914] [2021-06-13 07:31:21,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107880914] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:21,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:21,726 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-13 07:31:21,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448382536] [2021-06-13 07:31:21,726 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 07:31:21,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:21,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 07:31:21,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-13 07:31:21,728 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 104 [2021-06-13 07:31:21,728 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 99 transitions, 401 flow. Second operand has 9 states, 9 states have (on average 85.22222222222223) internal successors, (767), 9 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:21,728 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:21,729 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 104 [2021-06-13 07:31:21,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:22,183 INFO L129 PetriNetUnfolder]: 426/930 cut-off events. [2021-06-13 07:31:22,183 INFO L130 PetriNetUnfolder]: For 8077/8517 co-relation queries the response was YES. [2021-06-13 07:31:22,189 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4933 conditions, 930 events. 426/930 cut-off events. For 8077/8517 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4667 event pairs, 147 based on Foata normal form. 28/933 useless extension candidates. Maximal degree in co-relation 4854. Up to 501 conditions per place. [2021-06-13 07:31:22,195 INFO L132 encePairwiseOnDemand]: 93/104 looper letters, 22 selfloop transitions, 9 changer transitions 25/129 dead transitions. [2021-06-13 07:31:22,195 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 129 transitions, 883 flow [2021-06-13 07:31:22,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-13 07:31:22,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-13 07:31:22,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1061 transitions. [2021-06-13 07:31:22,198 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8501602564102564 [2021-06-13 07:31:22,198 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1061 transitions. [2021-06-13 07:31:22,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1061 transitions. [2021-06-13 07:31:22,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:22,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1061 transitions. [2021-06-13 07:31:22,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 88.41666666666667) internal successors, (1061), 12 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:22,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 104.0) internal successors, (1352), 13 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:22,203 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 104.0) internal successors, (1352), 13 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:22,203 INFO L185 Difference]: Start difference. First operand has 137 places, 99 transitions, 401 flow. Second operand 12 states and 1061 transitions. [2021-06-13 07:31:22,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 129 transitions, 883 flow [2021-06-13 07:31:22,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 129 transitions, 816 flow, removed 30 selfloop flow, removed 8 redundant places. [2021-06-13 07:31:22,214 INFO L241 Difference]: Finished difference. Result has 137 places, 99 transitions, 399 flow [2021-06-13 07:31:22,214 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=399, PETRI_PLACES=137, PETRI_TRANSITIONS=99} [2021-06-13 07:31:22,214 INFO L335 CegarLoopForPetriNet]: 98 programPoint places, 39 predicate places. [2021-06-13 07:31:22,214 INFO L482 AbstractCegarLoop]: Abstraction has has 137 places, 99 transitions, 399 flow [2021-06-13 07:31:22,215 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 85.22222222222223) internal successors, (767), 9 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:22,215 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:22,215 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:22,215 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-13 07:31:22,215 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:22,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:22,216 INFO L82 PathProgramCache]: Analyzing trace with hash 503569641, now seen corresponding path program 1 times [2021-06-13 07:31:22,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:22,216 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055227303] [2021-06-13 07:31:22,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:22,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:22,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:22,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:22,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:22,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:22,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 07:31:22,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:22,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 07:31:22,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:22,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:31:22,348 INFO L142 QuantifierPusher]: treesize reduction 21, result has 74.1 percent of original size [2021-06-13 07:31:22,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-06-13 07:31:22,363 INFO L142 QuantifierPusher]: treesize reduction 21, result has 74.1 percent of original size [2021-06-13 07:31:22,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-06-13 07:31:22,388 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:31:22,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:31:22,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:22,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:22,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:22,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:22,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:22,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:22,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:22,431 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:22,431 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055227303] [2021-06-13 07:31:22,431 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055227303] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:22,431 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:22,431 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-13 07:31:22,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423069999] [2021-06-13 07:31:22,432 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-13 07:31:22,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:22,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-13 07:31:22,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-06-13 07:31:22,434 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 104 [2021-06-13 07:31:22,434 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 99 transitions, 399 flow. Second operand has 10 states, 10 states have (on average 83.3) internal successors, (833), 10 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:22,434 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:22,435 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 104 [2021-06-13 07:31:22,435 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:22,854 INFO L129 PetriNetUnfolder]: 464/1142 cut-off events. [2021-06-13 07:31:22,854 INFO L130 PetriNetUnfolder]: For 8486/8898 co-relation queries the response was YES. [2021-06-13 07:31:22,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5431 conditions, 1142 events. 464/1142 cut-off events. For 8486/8898 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 7022 event pairs, 139 based on Foata normal form. 55/1165 useless extension candidates. Maximal degree in co-relation 5348. Up to 448 conditions per place. [2021-06-13 07:31:22,866 INFO L132 encePairwiseOnDemand]: 91/104 looper letters, 19 selfloop transitions, 13 changer transitions 29/132 dead transitions. [2021-06-13 07:31:22,866 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 132 transitions, 875 flow [2021-06-13 07:31:22,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-13 07:31:22,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-06-13 07:31:22,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1203 transitions. [2021-06-13 07:31:22,869 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8262362637362637 [2021-06-13 07:31:22,869 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1203 transitions. [2021-06-13 07:31:22,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1203 transitions. [2021-06-13 07:31:22,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:22,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1203 transitions. [2021-06-13 07:31:22,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 85.92857142857143) internal successors, (1203), 14 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) [2021-06-13 07:31:22,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 104.0) internal successors, (1560), 15 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:22,875 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 104.0) internal successors, (1560), 15 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:22,875 INFO L185 Difference]: Start difference. First operand has 137 places, 99 transitions, 399 flow. Second operand 14 states and 1203 transitions. [2021-06-13 07:31:22,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 132 transitions, 875 flow [2021-06-13 07:31:22,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 132 transitions, 806 flow, removed 24 selfloop flow, removed 14 redundant places. [2021-06-13 07:31:22,887 INFO L241 Difference]: Finished difference. Result has 137 places, 101 transitions, 446 flow [2021-06-13 07:31:22,887 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=446, PETRI_PLACES=137, PETRI_TRANSITIONS=101} [2021-06-13 07:31:22,887 INFO L335 CegarLoopForPetriNet]: 98 programPoint places, 39 predicate places. [2021-06-13 07:31:22,888 INFO L482 AbstractCegarLoop]: Abstraction has has 137 places, 101 transitions, 446 flow [2021-06-13 07:31:22,888 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 83.3) internal successors, (833), 10 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:22,888 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:22,888 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:22,888 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-13 07:31:22,888 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:22,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:22,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1766575425, now seen corresponding path program 1 times [2021-06-13 07:31:22,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:22,891 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509081706] [2021-06-13 07:31:22,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:23,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:23,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:23,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:23,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:23,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:23,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 07:31:23,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:23,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 07:31:23,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:23,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:31:23,059 INFO L142 QuantifierPusher]: treesize reduction 48, result has 37.7 percent of original size [2021-06-13 07:31:23,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-13 07:31:23,071 INFO L142 QuantifierPusher]: treesize reduction 38, result has 64.8 percent of original size [2021-06-13 07:31:23,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-06-13 07:31:23,120 INFO L142 QuantifierPusher]: treesize reduction 38, result has 62.7 percent of original size [2021-06-13 07:31:23,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-06-13 07:31:23,163 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:31:23,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:31:23,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:23,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:23,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:23,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:23,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:23,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:23,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:23,215 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:23,215 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509081706] [2021-06-13 07:31:23,215 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509081706] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:23,215 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:23,215 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-13 07:31:23,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010186707] [2021-06-13 07:31:23,216 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-13 07:31:23,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:23,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-13 07:31:23,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-06-13 07:31:23,217 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 104 [2021-06-13 07:31:23,218 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 101 transitions, 446 flow. Second operand has 11 states, 11 states have (on average 81.45454545454545) internal successors, (896), 11 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:23,218 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:23,218 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 104 [2021-06-13 07:31:23,218 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:23,934 INFO L129 PetriNetUnfolder]: 363/953 cut-off events. [2021-06-13 07:31:23,934 INFO L130 PetriNetUnfolder]: For 11107/11620 co-relation queries the response was YES. [2021-06-13 07:31:23,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5415 conditions, 953 events. 363/953 cut-off events. For 11107/11620 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 5702 event pairs, 85 based on Foata normal form. 50/979 useless extension candidates. Maximal degree in co-relation 5330. Up to 349 conditions per place. [2021-06-13 07:31:23,945 INFO L132 encePairwiseOnDemand]: 92/104 looper letters, 27 selfloop transitions, 14 changer transitions 38/148 dead transitions. [2021-06-13 07:31:23,946 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 148 transitions, 1296 flow [2021-06-13 07:31:23,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-13 07:31:23,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-06-13 07:31:23,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1432 transitions. [2021-06-13 07:31:23,949 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8099547511312217 [2021-06-13 07:31:23,949 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1432 transitions. [2021-06-13 07:31:23,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1432 transitions. [2021-06-13 07:31:23,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:23,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1432 transitions. [2021-06-13 07:31:23,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 84.23529411764706) internal successors, (1432), 17 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:23,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 104.0) internal successors, (1872), 18 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:23,956 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 104.0) internal successors, (1872), 18 states have internal predecessors, (1872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:23,956 INFO L185 Difference]: Start difference. First operand has 137 places, 101 transitions, 446 flow. Second operand 17 states and 1432 transitions. [2021-06-13 07:31:23,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 148 transitions, 1296 flow [2021-06-13 07:31:23,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 148 transitions, 1239 flow, removed 19 selfloop flow, removed 9 redundant places. [2021-06-13 07:31:23,967 INFO L241 Difference]: Finished difference. Result has 149 places, 105 transitions, 539 flow [2021-06-13 07:31:23,967 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=539, PETRI_PLACES=149, PETRI_TRANSITIONS=105} [2021-06-13 07:31:23,967 INFO L335 CegarLoopForPetriNet]: 98 programPoint places, 51 predicate places. [2021-06-13 07:31:23,968 INFO L482 AbstractCegarLoop]: Abstraction has has 149 places, 105 transitions, 539 flow [2021-06-13 07:31:23,968 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 81.45454545454545) internal successors, (896), 11 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:23,968 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:23,968 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:23,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-13 07:31:23,968 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:23,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:23,969 INFO L82 PathProgramCache]: Analyzing trace with hash 656777719, now seen corresponding path program 1 times [2021-06-13 07:31:23,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:23,969 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875907563] [2021-06-13 07:31:23,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:24,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:24,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:24,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:24,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:24,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:24,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 07:31:24,033 INFO L142 QuantifierPusher]: treesize reduction 7, result has 72.0 percent of original size [2021-06-13 07:31:24,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-06-13 07:31:24,045 INFO L142 QuantifierPusher]: treesize reduction 21, result has 74.1 percent of original size [2021-06-13 07:31:24,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-06-13 07:31:24,069 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:31:24,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:31:24,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:24,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:24,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:24,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:24,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:24,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:24,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:24,104 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:24,104 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875907563] [2021-06-13 07:31:24,104 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875907563] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:24,104 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:24,104 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-13 07:31:24,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902652760] [2021-06-13 07:31:24,105 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 07:31:24,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:24,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 07:31:24,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-13 07:31:24,106 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 104 [2021-06-13 07:31:24,107 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 105 transitions, 539 flow. Second operand has 9 states, 9 states have (on average 84.44444444444444) internal successors, (760), 9 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:24,107 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:24,107 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 104 [2021-06-13 07:31:24,107 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:24,506 INFO L129 PetriNetUnfolder]: 343/916 cut-off events. [2021-06-13 07:31:24,507 INFO L130 PetriNetUnfolder]: For 14668/15323 co-relation queries the response was YES. [2021-06-13 07:31:24,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5953 conditions, 916 events. 343/916 cut-off events. For 14668/15323 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 5363 event pairs, 123 based on Foata normal form. 25/913 useless extension candidates. Maximal degree in co-relation 5864. Up to 405 conditions per place. [2021-06-13 07:31:24,520 INFO L132 encePairwiseOnDemand]: 93/104 looper letters, 28 selfloop transitions, 18 changer transitions 26/144 dead transitions. [2021-06-13 07:31:24,521 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 144 transitions, 1383 flow [2021-06-13 07:31:24,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 07:31:24,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-13 07:31:24,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 970 transitions. [2021-06-13 07:31:24,523 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8479020979020979 [2021-06-13 07:31:24,524 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 970 transitions. [2021-06-13 07:31:24,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 970 transitions. [2021-06-13 07:31:24,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:24,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 970 transitions. [2021-06-13 07:31:24,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 88.18181818181819) internal successors, (970), 11 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:24,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:24,528 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:24,528 INFO L185 Difference]: Start difference. First operand has 149 places, 105 transitions, 539 flow. Second operand 11 states and 970 transitions. [2021-06-13 07:31:24,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 144 transitions, 1383 flow [2021-06-13 07:31:24,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 144 transitions, 1102 flow, removed 136 selfloop flow, removed 16 redundant places. [2021-06-13 07:31:24,548 INFO L241 Difference]: Finished difference. Result has 142 places, 113 transitions, 666 flow [2021-06-13 07:31:24,548 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=666, PETRI_PLACES=142, PETRI_TRANSITIONS=113} [2021-06-13 07:31:24,549 INFO L335 CegarLoopForPetriNet]: 98 programPoint places, 44 predicate places. [2021-06-13 07:31:24,549 INFO L482 AbstractCegarLoop]: Abstraction has has 142 places, 113 transitions, 666 flow [2021-06-13 07:31:24,549 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 84.44444444444444) internal successors, (760), 9 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:24,549 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:24,549 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:24,549 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-13 07:31:24,550 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:24,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:24,550 INFO L82 PathProgramCache]: Analyzing trace with hash 214010911, now seen corresponding path program 2 times [2021-06-13 07:31:24,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:24,550 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969799871] [2021-06-13 07:31:24,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:24,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:24,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:24,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:24,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:24,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:24,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:24,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 07:31:24,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:24,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 07:31:24,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:24,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:31:24,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:24,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-13 07:31:24,665 INFO L142 QuantifierPusher]: treesize reduction 52, result has 52.3 percent of original size [2021-06-13 07:31:24,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-13 07:31:24,698 INFO L142 QuantifierPusher]: treesize reduction 26, result has 59.4 percent of original size [2021-06-13 07:31:24,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-06-13 07:31:24,723 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:31:24,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:31:24,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:24,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:24,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:24,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:24,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:24,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:24,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:24,774 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:24,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969799871] [2021-06-13 07:31:24,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969799871] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:24,774 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:24,774 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-13 07:31:24,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743341089] [2021-06-13 07:31:24,774 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 07:31:24,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:24,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 07:31:24,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-06-13 07:31:24,776 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 104 [2021-06-13 07:31:24,777 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 113 transitions, 666 flow. Second operand has 12 states, 12 states have (on average 82.25) internal successors, (987), 12 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:24,777 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:24,777 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 104 [2021-06-13 07:31:24,777 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:25,322 INFO L129 PetriNetUnfolder]: 332/895 cut-off events. [2021-06-13 07:31:25,322 INFO L130 PetriNetUnfolder]: For 11579/12717 co-relation queries the response was YES. [2021-06-13 07:31:25,329 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5452 conditions, 895 events. 332/895 cut-off events. For 11579/12717 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5228 event pairs, 71 based on Foata normal form. 42/910 useless extension candidates. Maximal degree in co-relation 5367. Up to 374 conditions per place. [2021-06-13 07:31:25,335 INFO L132 encePairwiseOnDemand]: 91/104 looper letters, 39 selfloop transitions, 12 changer transitions 26/147 dead transitions. [2021-06-13 07:31:25,336 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 147 transitions, 1386 flow [2021-06-13 07:31:25,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-13 07:31:25,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-06-13 07:31:25,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1190 transitions. [2021-06-13 07:31:25,338 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8173076923076923 [2021-06-13 07:31:25,338 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1190 transitions. [2021-06-13 07:31:25,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1190 transitions. [2021-06-13 07:31:25,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:25,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1190 transitions. [2021-06-13 07:31:25,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:25,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 104.0) internal successors, (1560), 15 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:25,343 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 104.0) internal successors, (1560), 15 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:25,343 INFO L185 Difference]: Start difference. First operand has 142 places, 113 transitions, 666 flow. Second operand 14 states and 1190 transitions. [2021-06-13 07:31:25,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 147 transitions, 1386 flow [2021-06-13 07:31:25,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 147 transitions, 1265 flow, removed 60 selfloop flow, removed 7 redundant places. [2021-06-13 07:31:25,359 INFO L241 Difference]: Finished difference. Result has 149 places, 115 transitions, 707 flow [2021-06-13 07:31:25,360 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=603, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=707, PETRI_PLACES=149, PETRI_TRANSITIONS=115} [2021-06-13 07:31:25,360 INFO L335 CegarLoopForPetriNet]: 98 programPoint places, 51 predicate places. [2021-06-13 07:31:25,360 INFO L482 AbstractCegarLoop]: Abstraction has has 149 places, 115 transitions, 707 flow [2021-06-13 07:31:25,360 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 82.25) internal successors, (987), 12 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:25,360 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:25,360 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:25,361 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-13 07:31:25,361 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:25,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:25,361 INFO L82 PathProgramCache]: Analyzing trace with hash 889076076, now seen corresponding path program 1 times [2021-06-13 07:31:25,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:25,361 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501885597] [2021-06-13 07:31:25,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:25,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:25,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:25,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:25,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:25,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:25,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:25,436 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:31:25,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:31:25,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:25,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:25,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:25,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:25,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:25,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:25,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:25,469 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:25,469 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501885597] [2021-06-13 07:31:25,469 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501885597] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:25,469 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:25,469 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:31:25,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154611965] [2021-06-13 07:31:25,470 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:31:25,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:25,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:31:25,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:31:25,471 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 104 [2021-06-13 07:31:25,472 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 115 transitions, 707 flow. Second operand has 7 states, 7 states have (on average 90.57142857142857) internal successors, (634), 7 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:25,472 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:25,472 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 104 [2021-06-13 07:31:25,472 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:25,724 INFO L129 PetriNetUnfolder]: 330/999 cut-off events. [2021-06-13 07:31:25,725 INFO L130 PetriNetUnfolder]: For 13954/14303 co-relation queries the response was YES. [2021-06-13 07:31:25,732 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5826 conditions, 999 events. 330/999 cut-off events. For 13954/14303 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 6605 event pairs, 110 based on Foata normal form. 37/996 useless extension candidates. Maximal degree in co-relation 5740. Up to 313 conditions per place. [2021-06-13 07:31:25,738 INFO L132 encePairwiseOnDemand]: 97/104 looper letters, 15 selfloop transitions, 5 changer transitions 5/126 dead transitions. [2021-06-13 07:31:25,738 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 126 transitions, 870 flow [2021-06-13 07:31:25,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-13 07:31:25,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-13 07:31:25,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 735 transitions. [2021-06-13 07:31:25,740 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8834134615384616 [2021-06-13 07:31:25,740 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 735 transitions. [2021-06-13 07:31:25,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 735 transitions. [2021-06-13 07:31:25,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:25,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 735 transitions. [2021-06-13 07:31:25,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 91.875) internal successors, (735), 8 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:25,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 104.0) internal successors, (936), 9 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:25,743 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 104.0) internal successors, (936), 9 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:25,743 INFO L185 Difference]: Start difference. First operand has 149 places, 115 transitions, 707 flow. Second operand 8 states and 735 transitions. [2021-06-13 07:31:25,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 126 transitions, 870 flow [2021-06-13 07:31:25,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 126 transitions, 805 flow, removed 22 selfloop flow, removed 10 redundant places. [2021-06-13 07:31:25,760 INFO L241 Difference]: Finished difference. Result has 145 places, 117 transitions, 689 flow [2021-06-13 07:31:25,761 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=689, PETRI_PLACES=145, PETRI_TRANSITIONS=117} [2021-06-13 07:31:25,761 INFO L335 CegarLoopForPetriNet]: 98 programPoint places, 47 predicate places. [2021-06-13 07:31:25,761 INFO L482 AbstractCegarLoop]: Abstraction has has 145 places, 117 transitions, 689 flow [2021-06-13 07:31:25,761 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 90.57142857142857) internal successors, (634), 7 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:25,761 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:25,762 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:25,762 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-13 07:31:25,762 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:25,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:25,762 INFO L82 PathProgramCache]: Analyzing trace with hash -213838650, now seen corresponding path program 2 times [2021-06-13 07:31:25,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:25,763 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348203187] [2021-06-13 07:31:25,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:25,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:25,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:25,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:25,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:25,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:25,816 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-13 07:31:25,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:31:25,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:25,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 07:31:25,840 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-13 07:31:25,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:25,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:25,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:25,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:25,851 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:25,851 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348203187] [2021-06-13 07:31:25,851 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348203187] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:25,851 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:25,851 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-13 07:31:25,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513974368] [2021-06-13 07:31:25,852 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-13 07:31:25,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:25,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-13 07:31:25,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-13 07:31:25,853 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 104 [2021-06-13 07:31:25,854 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 117 transitions, 689 flow. Second operand has 6 states, 6 states have (on average 91.16666666666667) internal successors, (547), 6 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:25,854 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:25,854 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 104 [2021-06-13 07:31:25,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:26,301 INFO L129 PetriNetUnfolder]: 1045/2741 cut-off events. [2021-06-13 07:31:26,301 INFO L130 PetriNetUnfolder]: For 14195/14524 co-relation queries the response was YES. [2021-06-13 07:31:26,325 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9033 conditions, 2741 events. 1045/2741 cut-off events. For 14195/14524 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 25215 event pairs, 213 based on Foata normal form. 98/2607 useless extension candidates. Maximal degree in co-relation 8951. Up to 714 conditions per place. [2021-06-13 07:31:26,344 INFO L132 encePairwiseOnDemand]: 95/104 looper letters, 19 selfloop transitions, 16 changer transitions 1/141 dead transitions. [2021-06-13 07:31:26,344 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 141 transitions, 803 flow [2021-06-13 07:31:26,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 07:31:26,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-13 07:31:26,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 847 transitions. [2021-06-13 07:31:26,346 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9049145299145299 [2021-06-13 07:31:26,346 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 847 transitions. [2021-06-13 07:31:26,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 847 transitions. [2021-06-13 07:31:26,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:26,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 847 transitions. [2021-06-13 07:31:26,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 94.11111111111111) internal successors, (847), 9 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:26,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 104.0) internal successors, (1040), 10 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:26,350 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 104.0) internal successors, (1040), 10 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:26,350 INFO L185 Difference]: Start difference. First operand has 145 places, 117 transitions, 689 flow. Second operand 9 states and 847 transitions. [2021-06-13 07:31:26,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 141 transitions, 803 flow [2021-06-13 07:31:26,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 141 transitions, 788 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-06-13 07:31:26,367 INFO L241 Difference]: Finished difference. Result has 150 places, 129 transitions, 770 flow [2021-06-13 07:31:26,367 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=668, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=770, PETRI_PLACES=150, PETRI_TRANSITIONS=129} [2021-06-13 07:31:26,367 INFO L335 CegarLoopForPetriNet]: 98 programPoint places, 52 predicate places. [2021-06-13 07:31:26,367 INFO L482 AbstractCegarLoop]: Abstraction has has 150 places, 129 transitions, 770 flow [2021-06-13 07:31:26,368 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 91.16666666666667) internal successors, (547), 6 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:26,368 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:26,368 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:26,368 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-13 07:31:26,368 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:26,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:26,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1191419725, now seen corresponding path program 1 times [2021-06-13 07:31:26,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:26,369 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403414333] [2021-06-13 07:31:26,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:26,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:26,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:26,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:26,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:26,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:26,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:26,434 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-13 07:31:26,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:31:26,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:26,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 07:31:26,456 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-13 07:31:26,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:26,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:26,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:26,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:26,464 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:26,464 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403414333] [2021-06-13 07:31:26,465 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403414333] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:26,465 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:26,465 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:31:26,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961448310] [2021-06-13 07:31:26,465 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:31:26,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:26,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:31:26,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:31:26,466 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 104 [2021-06-13 07:31:26,467 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 129 transitions, 770 flow. Second operand has 7 states, 7 states have (on average 91.14285714285714) internal successors, (638), 7 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:26,467 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:26,467 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 104 [2021-06-13 07:31:26,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:26,925 INFO L129 PetriNetUnfolder]: 767/2379 cut-off events. [2021-06-13 07:31:26,925 INFO L130 PetriNetUnfolder]: For 9434/11294 co-relation queries the response was YES. [2021-06-13 07:31:26,946 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8655 conditions, 2379 events. 767/2379 cut-off events. For 9434/11294 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 23710 event pairs, 30 based on Foata normal form. 509/2696 useless extension candidates. Maximal degree in co-relation 8569. Up to 712 conditions per place. [2021-06-13 07:31:26,961 INFO L132 encePairwiseOnDemand]: 95/104 looper letters, 15 selfloop transitions, 31 changer transitions 6/154 dead transitions. [2021-06-13 07:31:26,961 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 154 transitions, 1028 flow [2021-06-13 07:31:26,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-13 07:31:26,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-13 07:31:26,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1130 transitions. [2021-06-13 07:31:26,965 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.905448717948718 [2021-06-13 07:31:26,965 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1130 transitions. [2021-06-13 07:31:26,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1130 transitions. [2021-06-13 07:31:26,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:26,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1130 transitions. [2021-06-13 07:31:26,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 94.16666666666667) internal successors, (1130), 12 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:26,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 104.0) internal successors, (1352), 13 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:26,976 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 104.0) internal successors, (1352), 13 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:26,976 INFO L185 Difference]: Start difference. First operand has 150 places, 129 transitions, 770 flow. Second operand 12 states and 1130 transitions. [2021-06-13 07:31:26,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 154 transitions, 1028 flow [2021-06-13 07:31:26,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 154 transitions, 1007 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-06-13 07:31:26,998 INFO L241 Difference]: Finished difference. Result has 161 places, 145 transitions, 952 flow [2021-06-13 07:31:26,998 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=952, PETRI_PLACES=161, PETRI_TRANSITIONS=145} [2021-06-13 07:31:26,998 INFO L335 CegarLoopForPetriNet]: 98 programPoint places, 63 predicate places. [2021-06-13 07:31:26,998 INFO L482 AbstractCegarLoop]: Abstraction has has 161 places, 145 transitions, 952 flow [2021-06-13 07:31:26,999 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 91.14285714285714) internal successors, (638), 7 states have internal predecessors, (638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:26,999 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:26,999 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:26,999 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-13 07:31:26,999 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:26,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:26,999 INFO L82 PathProgramCache]: Analyzing trace with hash 867585746, now seen corresponding path program 1 times [2021-06-13 07:31:27,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:27,000 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391308134] [2021-06-13 07:31:27,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:27,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:27,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:27,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:27,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:27,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:27,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:27,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:27,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:27,068 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-13 07:31:27,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:31:27,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:27,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 07:31:27,089 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-13 07:31:27,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:27,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:27,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:27,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:27,098 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:27,098 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391308134] [2021-06-13 07:31:27,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391308134] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:27,099 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:27,099 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 07:31:27,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398677034] [2021-06-13 07:31:27,099 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 07:31:27,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:27,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 07:31:27,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-13 07:31:27,100 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 104 [2021-06-13 07:31:27,101 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 145 transitions, 952 flow. Second operand has 8 states, 8 states have (on average 91.125) internal successors, (729), 8 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:27,101 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:27,101 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 104 [2021-06-13 07:31:27,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:27,574 INFO L129 PetriNetUnfolder]: 628/2151 cut-off events. [2021-06-13 07:31:27,574 INFO L130 PetriNetUnfolder]: For 9936/12860 co-relation queries the response was YES. [2021-06-13 07:31:27,592 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8611 conditions, 2151 events. 628/2151 cut-off events. For 9936/12860 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 22361 event pairs, 9 based on Foata normal form. 516/2479 useless extension candidates. Maximal degree in co-relation 8522. Up to 622 conditions per place. [2021-06-13 07:31:27,598 INFO L132 encePairwiseOnDemand]: 95/104 looper letters, 10 selfloop transitions, 36 changer transitions 27/162 dead transitions. [2021-06-13 07:31:27,598 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 162 transitions, 1184 flow [2021-06-13 07:31:27,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-13 07:31:27,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-06-13 07:31:27,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1401 transitions. [2021-06-13 07:31:27,604 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8980769230769231 [2021-06-13 07:31:27,604 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1401 transitions. [2021-06-13 07:31:27,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1401 transitions. [2021-06-13 07:31:27,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:27,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1401 transitions. [2021-06-13 07:31:27,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 93.4) internal successors, (1401), 15 states have internal predecessors, (1401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:27,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 104.0) internal successors, (1664), 16 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:27,611 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 104.0) internal successors, (1664), 16 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:27,611 INFO L185 Difference]: Start difference. First operand has 161 places, 145 transitions, 952 flow. Second operand 15 states and 1401 transitions. [2021-06-13 07:31:27,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 162 transitions, 1184 flow [2021-06-13 07:31:27,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 162 transitions, 940 flow, removed 106 selfloop flow, removed 11 redundant places. [2021-06-13 07:31:27,660 INFO L241 Difference]: Finished difference. Result has 170 places, 132 transitions, 754 flow [2021-06-13 07:31:27,660 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=754, PETRI_PLACES=170, PETRI_TRANSITIONS=132} [2021-06-13 07:31:27,661 INFO L335 CegarLoopForPetriNet]: 98 programPoint places, 72 predicate places. [2021-06-13 07:31:27,661 INFO L482 AbstractCegarLoop]: Abstraction has has 170 places, 132 transitions, 754 flow [2021-06-13 07:31:27,661 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 91.125) internal successors, (729), 8 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:27,661 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:27,661 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:27,661 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-13 07:31:27,661 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:27,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:27,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1854757333, now seen corresponding path program 1 times [2021-06-13 07:31:27,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:27,662 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719879219] [2021-06-13 07:31:27,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:27,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:27,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:27,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:27,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:27,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:27,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 07:31:27,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:27,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-06-13 07:31:27,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:27,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-13 07:31:27,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:27,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:31:27,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:27,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-13 07:31:27,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:27,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-06-13 07:31:27,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:27,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-13 07:31:27,831 INFO L142 QuantifierPusher]: treesize reduction 21, result has 67.7 percent of original size [2021-06-13 07:31:27,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-06-13 07:31:27,857 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:31:27,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:31:27,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:27,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:27,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:27,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:31:27,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:27,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:27,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:27,900 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:27,900 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719879219] [2021-06-13 07:31:27,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719879219] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:27,902 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:27,902 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-06-13 07:31:27,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305086891] [2021-06-13 07:31:27,903 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-13 07:31:27,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:27,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-13 07:31:27,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-06-13 07:31:27,905 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 104 [2021-06-13 07:31:27,907 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 132 transitions, 754 flow. Second operand has 14 states, 14 states have (on average 80.42857142857143) internal successors, (1126), 14 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:27,907 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:27,907 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 104 [2021-06-13 07:31:27,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:28,238 INFO L129 PetriNetUnfolder]: 314/1253 cut-off events. [2021-06-13 07:31:28,238 INFO L130 PetriNetUnfolder]: For 3906/4071 co-relation queries the response was YES. [2021-06-13 07:31:28,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3947 conditions, 1253 events. 314/1253 cut-off events. For 3906/4071 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 11902 event pairs, 2 based on Foata normal form. 5/1179 useless extension candidates. Maximal degree in co-relation 3851. Up to 158 conditions per place. [2021-06-13 07:31:28,246 INFO L132 encePairwiseOnDemand]: 93/104 looper letters, 19 selfloop transitions, 10 changer transitions 11/139 dead transitions. [2021-06-13 07:31:28,246 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 139 transitions, 896 flow [2021-06-13 07:31:28,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 07:31:28,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-13 07:31:28,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 898 transitions. [2021-06-13 07:31:28,248 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.784965034965035 [2021-06-13 07:31:28,248 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 898 transitions. [2021-06-13 07:31:28,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 898 transitions. [2021-06-13 07:31:28,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:28,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 898 transitions. [2021-06-13 07:31:28,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 81.63636363636364) internal successors, (898), 11 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:28,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:28,252 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 104.0) internal successors, (1248), 12 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:28,252 INFO L185 Difference]: Start difference. First operand has 170 places, 132 transitions, 754 flow. Second operand 11 states and 898 transitions. [2021-06-13 07:31:28,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 139 transitions, 896 flow [2021-06-13 07:31:28,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 139 transitions, 738 flow, removed 50 selfloop flow, removed 22 redundant places. [2021-06-13 07:31:28,272 INFO L241 Difference]: Finished difference. Result has 156 places, 127 transitions, 619 flow [2021-06-13 07:31:28,272 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=619, PETRI_PLACES=156, PETRI_TRANSITIONS=127} [2021-06-13 07:31:28,272 INFO L335 CegarLoopForPetriNet]: 98 programPoint places, 58 predicate places. [2021-06-13 07:31:28,272 INFO L482 AbstractCegarLoop]: Abstraction has has 156 places, 127 transitions, 619 flow [2021-06-13 07:31:28,273 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 80.42857142857143) internal successors, (1126), 14 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:28,273 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:28,273 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:28,273 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-13 07:31:28,273 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:28,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:28,273 INFO L82 PathProgramCache]: Analyzing trace with hash 822320397, now seen corresponding path program 2 times [2021-06-13 07:31:28,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:28,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264370418] [2021-06-13 07:31:28,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-13 07:31:28,309 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-13 07:31:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-13 07:31:28,352 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-13 07:31:28,411 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-13 07:31:28,412 INFO L573 BasicCegarLoop]: Counterexample might be feasible [2021-06-13 07:31:28,412 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-13 07:31:28,412 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/3) [2021-06-13 07:31:28,414 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-06-13 07:31:28,416 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 07:31:28,416 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 07:31:28,416 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 07:31:28,416 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 07:31:28,416 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 07:31:28,416 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 07:31:28,416 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 07:31:28,416 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == P0Thread1of1ForFork2======== [2021-06-13 07:31:28,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 104 transitions, 223 flow [2021-06-13 07:31:28,427 INFO L129 PetriNetUnfolder]: 2/101 cut-off events. [2021-06-13 07:31:28,427 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 07:31:28,427 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 101 events. 2/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2021-06-13 07:31:28,427 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 104 transitions, 223 flow [2021-06-13 07:31:28,428 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 101 transitions, 211 flow [2021-06-13 07:31:28,430 INFO L129 PetriNetUnfolder]: 0/41 cut-off events. [2021-06-13 07:31:28,430 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 07:31:28,430 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:31:28,430 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:31:28,430 INFO L430 AbstractCegarLoop]: === Iteration 1 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:31:28,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:31:28,431 INFO L82 PathProgramCache]: Analyzing trace with hash -857883359, now seen corresponding path program 1 times [2021-06-13 07:31:28,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:31:28,431 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876461283] [2021-06-13 07:31:28,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:31:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:31:28,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:28,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:31:28,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:31:28,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:31:28,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:31:28,448 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:31:28,448 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876461283] [2021-06-13 07:31:28,448 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876461283] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:31:28,448 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:31:28,448 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-13 07:31:28,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746850570] [2021-06-13 07:31:28,449 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 07:31:28,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:31:28,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 07:31:28,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 07:31:28,450 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 104 [2021-06-13 07:31:28,450 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 101 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:28,450 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:31:28,450 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 104 [2021-06-13 07:31:28,450 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:31:28,501 INFO L129 PetriNetUnfolder]: 49/391 cut-off events. [2021-06-13 07:31:28,501 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 07:31:28,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 487 conditions, 391 events. 49/391 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1976 event pairs, 38 based on Foata normal form. 17/383 useless extension candidates. Maximal degree in co-relation 441. Up to 65 conditions per place. [2021-06-13 07:31:28,502 INFO L132 encePairwiseOnDemand]: 99/104 looper letters, 0 selfloop transitions, 0 changer transitions 101/101 dead transitions. [2021-06-13 07:31:28,502 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 101 transitions, 233 flow [2021-06-13 07:31:28,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 07:31:28,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-13 07:31:28,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2021-06-13 07:31:28,504 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9455128205128205 [2021-06-13 07:31:28,504 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 295 transitions. [2021-06-13 07:31:28,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 295 transitions. [2021-06-13 07:31:28,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:31:28,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 295 transitions. [2021-06-13 07:31:28,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:28,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:28,506 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:28,506 INFO L185 Difference]: Start difference. First operand has 109 places, 101 transitions, 211 flow. Second operand 3 states and 295 transitions. [2021-06-13 07:31:28,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 101 transitions, 233 flow [2021-06-13 07:31:28,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 101 transitions, 230 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-13 07:31:28,507 INFO L241 Difference]: Finished difference. Result has 106 places, 0 transitions, 0 flow [2021-06-13 07:31:28,508 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=106, PETRI_TRANSITIONS=0} [2021-06-13 07:31:28,508 INFO L335 CegarLoopForPetriNet]: 109 programPoint places, -3 predicate places. [2021-06-13 07:31:28,508 INFO L482 AbstractCegarLoop]: Abstraction has has 106 places, 0 transitions, 0 flow [2021-06-13 07:31:28,508 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:31:28,508 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-13 07:31:28,508 INFO L301 ceAbstractionStarter]: Result for error location P0Thread1of1ForFork2 was SAFE (3/3) [2021-06-13 07:31:28,509 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-13 07:31:28,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.06 07:31:28 BasicIcfg [2021-06-13 07:31:28,640 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-13 07:31:28,640 INFO L168 Benchmark]: Toolchain (without parser) took 12911.00 ms. Allocated memory was 251.7 MB in the beginning and 521.1 MB in the end (delta: 269.5 MB). Free memory was 213.8 MB in the beginning and 424.3 MB in the end (delta: -210.5 MB). Peak memory consumption was 59.4 MB. Max. memory is 8.0 GB. [2021-06-13 07:31:28,641 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 251.7 MB. Free memory is still 232.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 07:31:28,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 449.50 ms. Allocated memory is still 251.7 MB. Free memory was 213.6 MB in the beginning and 208.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-06-13 07:31:28,641 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.92 ms. Allocated memory is still 251.7 MB. Free memory was 208.7 MB in the beginning and 205.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-06-13 07:31:28,641 INFO L168 Benchmark]: Boogie Preprocessor took 30.13 ms. Allocated memory is still 251.7 MB. Free memory was 205.2 MB in the beginning and 202.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-13 07:31:28,642 INFO L168 Benchmark]: RCFGBuilder took 1720.13 ms. Allocated memory is still 251.7 MB. Free memory was 202.9 MB in the beginning and 121.6 MB in the end (delta: 81.3 MB). Peak memory consumption was 121.7 MB. Max. memory is 8.0 GB. [2021-06-13 07:31:28,642 INFO L168 Benchmark]: TraceAbstraction took 10657.45 ms. Allocated memory was 251.7 MB in the beginning and 521.1 MB in the end (delta: 269.5 MB). Free memory was 121.1 MB in the beginning and 424.3 MB in the end (delta: -303.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 07:31:28,643 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 251.7 MB. Free memory is still 232.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 449.50 ms. Allocated memory is still 251.7 MB. Free memory was 213.6 MB in the beginning and 208.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 46.92 ms. Allocated memory is still 251.7 MB. Free memory was 208.7 MB in the beginning and 205.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.13 ms. Allocated memory is still 251.7 MB. Free memory was 205.2 MB in the beginning and 202.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1720.13 ms. Allocated memory is still 251.7 MB. Free memory was 202.9 MB in the beginning and 121.6 MB in the end (delta: 81.3 MB). Peak memory consumption was 121.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 10657.45 ms. Allocated memory was 251.7 MB in the beginning and 521.1 MB in the end (delta: 269.5 MB). Free memory was 121.1 MB in the beginning and 424.3 MB in the end (delta: -303.2 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L711] 0 int __unbuffered_p2_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0] [L712] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0] [L713] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0] [L715] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L717] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L718] 0 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0] [L719] 0 int y$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0] [L720] 0 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L721] 0 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L722] 0 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0] [L723] 0 _Bool y$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0] [L724] 0 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0] [L725] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L726] 0 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L727] 0 _Bool y$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0] [L728] 0 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0] [L729] 0 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L730] 0 int y$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L731] 0 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L732] 0 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L733] 0 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L734] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L735] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L813] 0 pthread_t t2177; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L814] FCALL, FORK 0 pthread_create(&t2177, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L739] 1 y$w_buff1 = y$w_buff0 [L740] 1 y$w_buff0 = 2 [L741] 1 y$w_buff1_used = y$w_buff0_used [L742] 1 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L744] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L745] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L746] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L747] 1 y$r_buff1_thd3 = y$r_buff0_thd3 [L748] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L751] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L815] 0 pthread_t t2178; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L816] FCALL, FORK 0 pthread_create(&t2178, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L768] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L817] 0 pthread_t t2179; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L818] FCALL, FORK 0 pthread_create(&t2179, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L785] 3 __unbuffered_p2_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L788] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L754] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L754] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L755] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L755] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L756] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L756] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L757] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L757] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L758] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L758] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L771] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L771] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L772] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L772] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L773] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L773] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L774] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L774] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L775] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L775] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L791] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L791] EXPR 3 y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y [L791] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L791] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L792] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L792] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L793] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L793] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L794] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L794] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L795] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L795] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L761] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L778] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L798] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L820] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L3] COND FALSE 0 !(!cond) VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L824] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L825] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L825] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L826] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L826] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L827] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L827] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L828] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L828] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L831] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L832] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L833] 0 y$flush_delayed = weak$$choice2 [L834] 0 y$mem_tmp = y [L835] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L835] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L836] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L836] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L837] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L837] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L838] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L838] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L839] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L839] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L840] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L841] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L841] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L842] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 2) [L843] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L843] 0 y = y$flush_delayed ? y$mem_tmp : y [L844] 0 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L18] COND TRUE 0 !expression VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L18] 0 reach_error() VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: P0 with 1 thread instances CFG has 7 procedures, 130 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 68.9ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 62.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 130 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 16.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 10230.8ms, OverallIterations: 17, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 7052.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 27.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 197 SDtfs, 497 SDslu, 688 SDs, 0 SdLazy, 1273 SolverSat, 281 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1351.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 239 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 205 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 2696.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=952occurred in iteration=14, InterpolantAutomatonStates: 185, 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: 68.8ms SsaConstructionTime, 592.1ms SatisfiabilityAnalysisTime, 2127.7ms InterpolantComputationTime, 1239 NumberOfCodeBlocks, 1239 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1143 ConstructedInterpolants, 0 QuantifiedInterpolants, 5974 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: P0Thread1of1ForFork2 with 1 thread instances CFG has 7 procedures, 130 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 1.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 92.8ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 58.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 11 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=211occurred in iteration=0, InterpolantAutomatonStates: 3, 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: 0.9ms SsaConstructionTime, 2.1ms SatisfiabilityAnalysisTime, 11.1ms InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...