/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix043_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 10:51:33,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 10:51:33,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 10:51:33,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 10:51:33,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 10:51:33,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 10:51:33,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 10:51:33,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 10:51:33,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 10:51:33,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 10:51:33,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 10:51:33,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 10:51:33,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 10:51:33,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 10:51:33,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 10:51:33,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 10:51:33,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 10:51:33,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 10:51:33,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 10:51:33,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 10:51:33,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 10:51:33,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 10:51:33,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 10:51:33,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 10:51:33,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 10:51:33,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 10:51:33,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 10:51:33,859 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 10:51:33,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 10:51:33,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 10:51:33,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 10:51:33,861 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 10:51:33,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 10:51:33,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 10:51:33,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 10:51:33,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 10:51:33,865 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-VariableLbe.epf [2021-03-24 10:51:33,886 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 10:51:33,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 10:51:33,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 10:51:33,890 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 10:51:33,890 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 10:51:33,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 10:51:33,890 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 10:51:33,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 10:51:33,890 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 10:51:33,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 10:51:33,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 10:51:33,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 10:51:33,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 10:51:33,891 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 10:51:33,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 10:51:33,891 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 10:51:33,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 10:51:33,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 10:51:33,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 10:51:33,892 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 10:51:33,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 10:51:33,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 10:51:33,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 10:51:33,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 10:51:33,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 10:51:33,893 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 10:51:33,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 10:51:33,893 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 10:51:33,893 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 10:51:33,893 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 10:51:34,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 10:51:34,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 10:51:34,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 10:51:34,156 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 10:51:34,156 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 10:51:34,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix043_tso.opt.i [2021-03-24 10:51:34,201 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80fe637ed/6eb0447c5cda4c858d1683cda75e6aac/FLAG72fc61c55 [2021-03-24 10:51:34,606 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 10:51:34,606 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix043_tso.opt.i [2021-03-24 10:51:34,616 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80fe637ed/6eb0447c5cda4c858d1683cda75e6aac/FLAG72fc61c55 [2021-03-24 10:51:34,976 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80fe637ed/6eb0447c5cda4c858d1683cda75e6aac [2021-03-24 10:51:34,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 10:51:34,978 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 10:51:34,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 10:51:34,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 10:51:34,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 10:51:34,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 10:51:34" (1/1) ... [2021-03-24 10:51:34,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@485c7689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:51:34, skipping insertion in model container [2021-03-24 10:51:34,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 10:51:34" (1/1) ... [2021-03-24 10:51:34,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 10:51:35,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 10:51:35,122 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix043_tso.opt.i[948,961] [2021-03-24 10:51:35,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 10:51:35,251 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 10:51:35,257 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix043_tso.opt.i[948,961] [2021-03-24 10:51:35,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 10:51:35,322 INFO L208 MainTranslator]: Completed translation [2021-03-24 10:51:35,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:51:35 WrapperNode [2021-03-24 10:51:35,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 10:51:35,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 10:51:35,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 10:51:35,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 10:51:35,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:51:35" (1/1) ... [2021-03-24 10:51:35,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:51:35" (1/1) ... [2021-03-24 10:51:35,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 10:51:35,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 10:51:35,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 10:51:35,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 10:51:35,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:51:35" (1/1) ... [2021-03-24 10:51:35,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:51:35" (1/1) ... [2021-03-24 10:51:35,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:51:35" (1/1) ... [2021-03-24 10:51:35,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:51:35" (1/1) ... [2021-03-24 10:51:35,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:51:35" (1/1) ... [2021-03-24 10:51:35,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:51:35" (1/1) ... [2021-03-24 10:51:35,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:51:35" (1/1) ... [2021-03-24 10:51:35,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 10:51:35,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 10:51:35,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 10:51:35,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 10:51:35,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:51:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 10:51:35,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 10:51:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 10:51:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 10:51:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 10:51:35,441 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-24 10:51:35,442 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-24 10:51:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-24 10:51:35,442 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-24 10:51:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-24 10:51:35,442 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-24 10:51:35,442 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-24 10:51:35,442 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-24 10:51:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 10:51:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 10:51:35,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 10:51:35,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 10:51:35,444 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 10:51:36,674 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 10:51:36,674 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-24 10:51:36,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 10:51:36 BoogieIcfgContainer [2021-03-24 10:51:36,677 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 10:51:36,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 10:51:36,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 10:51:36,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 10:51:36,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 10:51:34" (1/3) ... [2021-03-24 10:51:36,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f70d202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 10:51:36, skipping insertion in model container [2021-03-24 10:51:36,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 10:51:35" (2/3) ... [2021-03-24 10:51:36,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f70d202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 10:51:36, skipping insertion in model container [2021-03-24 10:51:36,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 10:51:36" (3/3) ... [2021-03-24 10:51:36,682 INFO L111 eAbstractionObserver]: Analyzing ICFG mix043_tso.opt.i [2021-03-24 10:51:36,689 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 10:51:36,692 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-24 10:51:36,692 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 10:51:36,721 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,721 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,721 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,721 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,721 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,721 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,721 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,722 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,722 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,722 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,722 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,722 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,722 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,722 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,722 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,723 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,723 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,723 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,723 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,723 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,723 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,723 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,724 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,724 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,724 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,724 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,724 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,724 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,724 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,724 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,725 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,725 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,725 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,725 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,725 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,725 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,725 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,725 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,725 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,726 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,726 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,726 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,726 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,726 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,726 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,726 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,726 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,727 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,727 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,727 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,727 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,727 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,727 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,727 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,728 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,728 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,728 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,728 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,728 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,728 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,728 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,728 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,728 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,728 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,729 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,729 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,729 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,729 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,729 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,729 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,729 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,729 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,730 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,730 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,730 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,730 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,731 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,731 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,731 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,731 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,731 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,731 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,731 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,731 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,733 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,733 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,733 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,733 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,735 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,735 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,735 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,735 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,736 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,736 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,736 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,737 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,737 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,738 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,739 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,739 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,740 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,740 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,745 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,745 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,745 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,745 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,745 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,745 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,745 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,745 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,746 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,746 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,746 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,746 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 10:51:36,746 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-24 10:51:36,757 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-24 10:51:36,778 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 10:51:36,778 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 10:51:36,778 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 10:51:36,778 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 10:51:36,778 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 10:51:36,778 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 10:51:36,778 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 10:51:36,778 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 10:51:36,787 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 129 places, 118 transitions, 256 flow [2021-03-24 10:51:36,828 INFO L129 PetriNetUnfolder]: 2/114 cut-off events. [2021-03-24 10:51:36,828 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 10:51:36,836 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 114 events. 2/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-03-24 10:51:36,836 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 118 transitions, 256 flow [2021-03-24 10:51:36,840 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 125 places, 114 transitions, 240 flow [2021-03-24 10:51:36,841 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 10:51:36,846 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 114 transitions, 240 flow [2021-03-24 10:51:36,848 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 114 transitions, 240 flow [2021-03-24 10:51:36,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 125 places, 114 transitions, 240 flow [2021-03-24 10:51:36,873 INFO L129 PetriNetUnfolder]: 2/114 cut-off events. [2021-03-24 10:51:36,873 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 10:51:36,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 114 events. 2/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-03-24 10:51:36,876 INFO L142 LiptonReduction]: Number of co-enabled transitions 2598 [2021-03-24 10:51:37,868 WARN L205 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-03-24 10:51:38,369 WARN L205 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 187 [2021-03-24 10:51:39,588 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-03-24 10:51:40,141 WARN L205 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-03-24 10:51:40,656 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-24 10:51:40,973 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 86 [2021-03-24 10:51:41,105 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-03-24 10:51:41,984 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-24 10:51:42,242 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-03-24 10:51:42,765 WARN L205 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2021-03-24 10:51:43,280 WARN L205 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2021-03-24 10:51:43,489 INFO L154 LiptonReduction]: Checked pairs total: 4482 [2021-03-24 10:51:43,490 INFO L156 LiptonReduction]: Total number of compositions: 78 [2021-03-24 10:51:43,491 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6651 [2021-03-24 10:51:43,500 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2021-03-24 10:51:43,500 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 10:51:43,500 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:51:43,501 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:51:43,501 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:51:43,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:51:43,505 INFO L82 PathProgramCache]: Analyzing trace with hash 778215304, now seen corresponding path program 1 times [2021-03-24 10:51:43,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:51:43,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599180581] [2021-03-24 10:51:43,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:51:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:51:43,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:43,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:51:43,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:43,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:51:43,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:51:43,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599180581] [2021-03-24 10:51:43,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:51:43,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 10:51:43,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266427369] [2021-03-24 10:51:43,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 10:51:43,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:51:43,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 10:51:43,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 10:51:43,702 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 196 [2021-03-24 10:51:43,706 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:43,706 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:51:43,706 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 196 [2021-03-24 10:51:43,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:51:43,770 INFO L129 PetriNetUnfolder]: 23/107 cut-off events. [2021-03-24 10:51:43,770 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 10:51:43,771 INFO L84 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 107 events. 23/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 353 event pairs, 9 based on Foata normal form. 5/102 useless extension candidates. Maximal degree in co-relation 146. Up to 37 conditions per place. [2021-03-24 10:51:43,772 INFO L132 encePairwiseOnDemand]: 192/196 looper letters, 7 selfloop transitions, 2 changer transitions 5/47 dead transitions. [2021-03-24 10:51:43,772 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 47 transitions, 128 flow [2021-03-24 10:51:43,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 10:51:43,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 10:51:43,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 533 transitions. [2021-03-24 10:51:43,787 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9064625850340136 [2021-03-24 10:51:43,787 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 533 transitions. [2021-03-24 10:51:43,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 533 transitions. [2021-03-24 10:51:43,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:51:43,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 533 transitions. [2021-03-24 10:51:43,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 177.66666666666666) internal successors, (533), 3 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:43,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:43,806 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 196.0) internal successors, (784), 4 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:43,807 INFO L185 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 533 transitions. [2021-03-24 10:51:43,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 47 transitions, 128 flow [2021-03-24 10:51:43,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 47 transitions, 124 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-24 10:51:43,810 INFO L241 Difference]: Finished difference. Result has 54 places, 39 transitions, 90 flow [2021-03-24 10:51:43,811 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=54, PETRI_TRANSITIONS=39} [2021-03-24 10:51:43,812 INFO L343 CegarLoopForPetriNet]: 58 programPoint places, -4 predicate places. [2021-03-24 10:51:43,812 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 39 transitions, 90 flow [2021-03-24 10:51:43,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:43,812 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:51:43,813 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:51:43,813 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 10:51:43,813 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:51:43,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:51:43,814 INFO L82 PathProgramCache]: Analyzing trace with hash -418335220, now seen corresponding path program 1 times [2021-03-24 10:51:43,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:51:43,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709301640] [2021-03-24 10:51:43,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:51:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:51:43,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:43,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:51:43,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:43,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 10:51:43,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:43,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 10:51:43,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:43,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 10:51:43,975 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:43,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 10:51:43,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:43,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 10:51:43,994 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 10:51:43,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 10:51:44,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:51:44,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709301640] [2021-03-24 10:51:44,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:51:44,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 10:51:44,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992333560] [2021-03-24 10:51:44,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 10:51:44,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:51:44,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 10:51:44,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-24 10:51:44,006 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 196 [2021-03-24 10:51:44,008 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 39 transitions, 90 flow. Second operand has 7 states, 7 states have (on average 157.0) internal successors, (1099), 7 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,008 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:51:44,008 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 196 [2021-03-24 10:51:44,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:51:44,110 INFO L129 PetriNetUnfolder]: 37/127 cut-off events. [2021-03-24 10:51:44,110 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2021-03-24 10:51:44,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 127 events. 37/127 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 430 event pairs, 24 based on Foata normal form. 9/131 useless extension candidates. Maximal degree in co-relation 210. Up to 60 conditions per place. [2021-03-24 10:51:44,112 INFO L132 encePairwiseOnDemand]: 187/196 looper letters, 9 selfloop transitions, 8 changer transitions 10/55 dead transitions. [2021-03-24 10:51:44,112 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 55 transitions, 182 flow [2021-03-24 10:51:44,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 10:51:44,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 10:51:44,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1434 transitions. [2021-03-24 10:51:44,115 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8129251700680272 [2021-03-24 10:51:44,115 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1434 transitions. [2021-03-24 10:51:44,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1434 transitions. [2021-03-24 10:51:44,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:51:44,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1434 transitions. [2021-03-24 10:51:44,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 159.33333333333334) internal successors, (1434), 9 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 196.0) internal successors, (1960), 10 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,122 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 196.0) internal successors, (1960), 10 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,122 INFO L185 Difference]: Start difference. First operand has 54 places, 39 transitions, 90 flow. Second operand 9 states and 1434 transitions. [2021-03-24 10:51:44,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 55 transitions, 182 flow [2021-03-24 10:51:44,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 55 transitions, 172 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 10:51:44,123 INFO L241 Difference]: Finished difference. Result has 61 places, 43 transitions, 138 flow [2021-03-24 10:51:44,123 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=138, PETRI_PLACES=61, PETRI_TRANSITIONS=43} [2021-03-24 10:51:44,124 INFO L343 CegarLoopForPetriNet]: 58 programPoint places, 3 predicate places. [2021-03-24 10:51:44,124 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 43 transitions, 138 flow [2021-03-24 10:51:44,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 157.0) internal successors, (1099), 7 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,125 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:51:44,125 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:51:44,125 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 10:51:44,125 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:51:44,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:51:44,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1702815434, now seen corresponding path program 1 times [2021-03-24 10:51:44,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:51:44,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134975544] [2021-03-24 10:51:44,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:51:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:51:44,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:44,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:51:44,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:44,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:51:44,179 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 10:51:44,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 10:51:44,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:51:44,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134975544] [2021-03-24 10:51:44,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:51:44,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 10:51:44,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892222135] [2021-03-24 10:51:44,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 10:51:44,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:51:44,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 10:51:44,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 10:51:44,185 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 176 out of 196 [2021-03-24 10:51:44,186 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 43 transitions, 138 flow. Second operand has 4 states, 4 states have (on average 176.75) internal successors, (707), 4 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,186 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:51:44,186 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 176 of 196 [2021-03-24 10:51:44,186 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:51:44,207 INFO L129 PetriNetUnfolder]: 5/59 cut-off events. [2021-03-24 10:51:44,207 INFO L130 PetriNetUnfolder]: For 56/59 co-relation queries the response was YES. [2021-03-24 10:51:44,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 59 events. 5/59 cut-off events. For 56/59 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 113 event pairs, 3 based on Foata normal form. 5/63 useless extension candidates. Maximal degree in co-relation 106. Up to 13 conditions per place. [2021-03-24 10:51:44,208 INFO L132 encePairwiseOnDemand]: 192/196 looper letters, 2 selfloop transitions, 2 changer transitions 2/45 dead transitions. [2021-03-24 10:51:44,208 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 45 transitions, 158 flow [2021-03-24 10:51:44,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 10:51:44,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 10:51:44,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 888 transitions. [2021-03-24 10:51:44,210 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9061224489795918 [2021-03-24 10:51:44,210 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 888 transitions. [2021-03-24 10:51:44,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 888 transitions. [2021-03-24 10:51:44,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:51:44,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 888 transitions. [2021-03-24 10:51:44,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 177.6) internal successors, (888), 5 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,214 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,214 INFO L185 Difference]: Start difference. First operand has 61 places, 43 transitions, 138 flow. Second operand 5 states and 888 transitions. [2021-03-24 10:51:44,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 45 transitions, 158 flow [2021-03-24 10:51:44,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 45 transitions, 150 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-03-24 10:51:44,216 INFO L241 Difference]: Finished difference. Result has 62 places, 43 transitions, 142 flow [2021-03-24 10:51:44,216 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=142, PETRI_PLACES=62, PETRI_TRANSITIONS=43} [2021-03-24 10:51:44,216 INFO L343 CegarLoopForPetriNet]: 58 programPoint places, 4 predicate places. [2021-03-24 10:51:44,217 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 43 transitions, 142 flow [2021-03-24 10:51:44,217 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 176.75) internal successors, (707), 4 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,217 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:51:44,217 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:51:44,219 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 10:51:44,219 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:51:44,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:51:44,220 INFO L82 PathProgramCache]: Analyzing trace with hash 105250478, now seen corresponding path program 1 times [2021-03-24 10:51:44,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:51:44,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105775564] [2021-03-24 10:51:44,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:51:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:51:44,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:44,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:51:44,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:44,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:51:44,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:44,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 10:51:44,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:44,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 10:51:44,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:44,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 10:51:44,315 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-03-24 10:51:44,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 10:51:44,329 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 10:51:44,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 10:51:44,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:51:44,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105775564] [2021-03-24 10:51:44,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:51:44,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 10:51:44,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642779349] [2021-03-24 10:51:44,334 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 10:51:44,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:51:44,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 10:51:44,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-03-24 10:51:44,335 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 196 [2021-03-24 10:51:44,336 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 43 transitions, 142 flow. Second operand has 7 states, 7 states have (on average 160.14285714285714) internal successors, (1121), 7 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,336 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:51:44,336 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 196 [2021-03-24 10:51:44,336 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:51:44,427 INFO L129 PetriNetUnfolder]: 31/111 cut-off events. [2021-03-24 10:51:44,427 INFO L130 PetriNetUnfolder]: For 133/138 co-relation queries the response was YES. [2021-03-24 10:51:44,427 INFO L84 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 111 events. 31/111 cut-off events. For 133/138 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 337 event pairs, 6 based on Foata normal form. 6/113 useless extension candidates. Maximal degree in co-relation 266. Up to 50 conditions per place. [2021-03-24 10:51:44,428 INFO L132 encePairwiseOnDemand]: 187/196 looper letters, 12 selfloop transitions, 10 changer transitions 5/56 dead transitions. [2021-03-24 10:51:44,428 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 56 transitions, 242 flow [2021-03-24 10:51:44,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-24 10:51:44,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-24 10:51:44,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1298 transitions. [2021-03-24 10:51:44,430 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8278061224489796 [2021-03-24 10:51:44,430 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1298 transitions. [2021-03-24 10:51:44,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1298 transitions. [2021-03-24 10:51:44,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:51:44,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1298 transitions. [2021-03-24 10:51:44,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 162.25) internal successors, (1298), 8 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 196.0) internal successors, (1764), 9 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,435 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 196.0) internal successors, (1764), 9 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,435 INFO L185 Difference]: Start difference. First operand has 62 places, 43 transitions, 142 flow. Second operand 8 states and 1298 transitions. [2021-03-24 10:51:44,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 56 transitions, 242 flow [2021-03-24 10:51:44,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 56 transitions, 228 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-24 10:51:44,437 INFO L241 Difference]: Finished difference. Result has 66 places, 48 transitions, 191 flow [2021-03-24 10:51:44,437 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=191, PETRI_PLACES=66, PETRI_TRANSITIONS=48} [2021-03-24 10:51:44,437 INFO L343 CegarLoopForPetriNet]: 58 programPoint places, 8 predicate places. [2021-03-24 10:51:44,437 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 48 transitions, 191 flow [2021-03-24 10:51:44,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 160.14285714285714) internal successors, (1121), 7 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,438 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:51:44,438 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:51:44,438 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 10:51:44,438 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:51:44,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:51:44,438 INFO L82 PathProgramCache]: Analyzing trace with hash 22728234, now seen corresponding path program 2 times [2021-03-24 10:51:44,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:51:44,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263287446] [2021-03-24 10:51:44,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:51:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:51:44,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:44,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:51:44,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:44,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:51:44,478 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:44,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 10:51:44,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:44,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 10:51:44,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:44,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 10:51:44,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:44,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 10:51:44,511 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-03-24 10:51:44,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 10:51:44,526 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 10:51:44,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 10:51:44,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:51:44,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263287446] [2021-03-24 10:51:44,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:51:44,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-24 10:51:44,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343741002] [2021-03-24 10:51:44,531 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-24 10:51:44,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:51:44,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-24 10:51:44,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-03-24 10:51:44,532 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 196 [2021-03-24 10:51:44,533 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 48 transitions, 191 flow. Second operand has 9 states, 9 states have (on average 159.88888888888889) internal successors, (1439), 9 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,533 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:51:44,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 196 [2021-03-24 10:51:44,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:51:44,618 INFO L129 PetriNetUnfolder]: 34/121 cut-off events. [2021-03-24 10:51:44,618 INFO L130 PetriNetUnfolder]: For 253/270 co-relation queries the response was YES. [2021-03-24 10:51:44,619 INFO L84 FinitePrefix]: Finished finitePrefix Result has 419 conditions, 121 events. 34/121 cut-off events. For 253/270 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 393 event pairs, 2 based on Foata normal form. 13/132 useless extension candidates. Maximal degree in co-relation 384. Up to 51 conditions per place. [2021-03-24 10:51:44,619 INFO L132 encePairwiseOnDemand]: 187/196 looper letters, 14 selfloop transitions, 11 changer transitions 5/59 dead transitions. [2021-03-24 10:51:44,620 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 59 transitions, 333 flow [2021-03-24 10:51:44,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 10:51:44,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 10:51:44,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1456 transitions. [2021-03-24 10:51:44,622 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8253968253968254 [2021-03-24 10:51:44,622 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1456 transitions. [2021-03-24 10:51:44,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1456 transitions. [2021-03-24 10:51:44,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:51:44,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1456 transitions. [2021-03-24 10:51:44,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 161.77777777777777) internal successors, (1456), 9 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) [2021-03-24 10:51:44,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 196.0) internal successors, (1960), 10 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,627 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 196.0) internal successors, (1960), 10 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,627 INFO L185 Difference]: Start difference. First operand has 66 places, 48 transitions, 191 flow. Second operand 9 states and 1456 transitions. [2021-03-24 10:51:44,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 59 transitions, 333 flow [2021-03-24 10:51:44,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 59 transitions, 318 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-03-24 10:51:44,631 INFO L241 Difference]: Finished difference. Result has 72 places, 50 transitions, 236 flow [2021-03-24 10:51:44,631 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=236, PETRI_PLACES=72, PETRI_TRANSITIONS=50} [2021-03-24 10:51:44,631 INFO L343 CegarLoopForPetriNet]: 58 programPoint places, 14 predicate places. [2021-03-24 10:51:44,631 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 50 transitions, 236 flow [2021-03-24 10:51:44,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 159.88888888888889) internal successors, (1439), 9 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,632 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:51:44,632 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:51:44,632 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 10:51:44,632 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:51:44,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:51:44,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1800441160, now seen corresponding path program 3 times [2021-03-24 10:51:44,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:51:44,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327588765] [2021-03-24 10:51:44,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:51:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:51:44,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:44,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:51:44,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:44,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:51:44,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:44,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 10:51:44,720 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-03-24 10:51:44,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 10:51:44,737 INFO L142 QuantifierPusher]: treesize reduction 10, result has 83.6 percent of original size [2021-03-24 10:51:44,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 10:51:44,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:44,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 10:51:44,769 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 10:51:44,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 10:51:44,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:51:44,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327588765] [2021-03-24 10:51:44,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:51:44,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-24 10:51:44,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556917928] [2021-03-24 10:51:44,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-24 10:51:44,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:51:44,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-24 10:51:44,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-03-24 10:51:44,777 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 196 [2021-03-24 10:51:44,778 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 50 transitions, 236 flow. Second operand has 8 states, 8 states have (on average 158.0) internal successors, (1264), 8 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,778 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:51:44,778 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 196 [2021-03-24 10:51:44,778 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:51:44,895 INFO L129 PetriNetUnfolder]: 32/127 cut-off events. [2021-03-24 10:51:44,895 INFO L130 PetriNetUnfolder]: For 474/498 co-relation queries the response was YES. [2021-03-24 10:51:44,896 INFO L84 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 127 events. 32/127 cut-off events. For 474/498 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 469 event pairs, 1 based on Foata normal form. 13/138 useless extension candidates. Maximal degree in co-relation 451. Up to 48 conditions per place. [2021-03-24 10:51:44,899 INFO L132 encePairwiseOnDemand]: 188/196 looper letters, 18 selfloop transitions, 9 changer transitions 5/61 dead transitions. [2021-03-24 10:51:44,899 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 61 transitions, 418 flow [2021-03-24 10:51:44,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-24 10:51:44,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-24 10:51:44,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1280 transitions. [2021-03-24 10:51:44,901 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8163265306122449 [2021-03-24 10:51:44,901 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1280 transitions. [2021-03-24 10:51:44,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1280 transitions. [2021-03-24 10:51:44,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:51:44,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1280 transitions. [2021-03-24 10:51:44,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 160.0) internal successors, (1280), 8 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 196.0) internal successors, (1764), 9 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,907 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 196.0) internal successors, (1764), 9 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,907 INFO L185 Difference]: Start difference. First operand has 72 places, 50 transitions, 236 flow. Second operand 8 states and 1280 transitions. [2021-03-24 10:51:44,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 61 transitions, 418 flow [2021-03-24 10:51:44,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 61 transitions, 332 flow, removed 35 selfloop flow, removed 8 redundant places. [2021-03-24 10:51:44,912 INFO L241 Difference]: Finished difference. Result has 72 places, 52 transitions, 244 flow [2021-03-24 10:51:44,912 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=244, PETRI_PLACES=72, PETRI_TRANSITIONS=52} [2021-03-24 10:51:44,912 INFO L343 CegarLoopForPetriNet]: 58 programPoint places, 14 predicate places. [2021-03-24 10:51:44,912 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 52 transitions, 244 flow [2021-03-24 10:51:44,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 158.0) internal successors, (1264), 8 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,913 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:51:44,913 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:51:44,913 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 10:51:44,913 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:51:44,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:51:44,913 INFO L82 PathProgramCache]: Analyzing trace with hash -813312723, now seen corresponding path program 1 times [2021-03-24 10:51:44,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:51:44,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791946955] [2021-03-24 10:51:44,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:51:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:51:44,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:44,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:51:44,946 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 10:51:44,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 10:51:44,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:44,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:51:44,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:51:44,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791946955] [2021-03-24 10:51:44,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:51:44,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 10:51:44,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061411511] [2021-03-24 10:51:44,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 10:51:44,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:51:44,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 10:51:44,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 10:51:44,953 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 196 [2021-03-24 10:51:44,954 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 52 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 162.75) internal successors, (651), 4 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:44,954 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:51:44,954 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 196 [2021-03-24 10:51:44,954 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:51:45,048 INFO L129 PetriNetUnfolder]: 285/573 cut-off events. [2021-03-24 10:51:45,048 INFO L130 PetriNetUnfolder]: For 789/818 co-relation queries the response was YES. [2021-03-24 10:51:45,050 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1615 conditions, 573 events. 285/573 cut-off events. For 789/818 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 3460 event pairs, 115 based on Foata normal form. 49/526 useless extension candidates. Maximal degree in co-relation 1580. Up to 306 conditions per place. [2021-03-24 10:51:45,052 INFO L132 encePairwiseOnDemand]: 189/196 looper letters, 13 selfloop transitions, 10 changer transitions 0/66 dead transitions. [2021-03-24 10:51:45,052 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 66 transitions, 318 flow [2021-03-24 10:51:45,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 10:51:45,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 10:51:45,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 834 transitions. [2021-03-24 10:51:45,054 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8510204081632653 [2021-03-24 10:51:45,054 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 834 transitions. [2021-03-24 10:51:45,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 834 transitions. [2021-03-24 10:51:45,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:51:45,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 834 transitions. [2021-03-24 10:51:45,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 166.8) internal successors, (834), 5 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,058 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,058 INFO L185 Difference]: Start difference. First operand has 72 places, 52 transitions, 244 flow. Second operand 5 states and 834 transitions. [2021-03-24 10:51:45,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 66 transitions, 318 flow [2021-03-24 10:51:45,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 66 transitions, 297 flow, removed 7 selfloop flow, removed 5 redundant places. [2021-03-24 10:51:45,060 INFO L241 Difference]: Finished difference. Result has 72 places, 61 transitions, 302 flow [2021-03-24 10:51:45,061 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=302, PETRI_PLACES=72, PETRI_TRANSITIONS=61} [2021-03-24 10:51:45,061 INFO L343 CegarLoopForPetriNet]: 58 programPoint places, 14 predicate places. [2021-03-24 10:51:45,061 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 61 transitions, 302 flow [2021-03-24 10:51:45,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 162.75) internal successors, (651), 4 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,061 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:51:45,061 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:51:45,061 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 10:51:45,061 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:51:45,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:51:45,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1337591201, now seen corresponding path program 1 times [2021-03-24 10:51:45,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:51:45,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841606283] [2021-03-24 10:51:45,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:51:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:51:45,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:45,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:51:45,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:45,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:51:45,118 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 10:51:45,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 10:51:45,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:45,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:51:45,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:51:45,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841606283] [2021-03-24 10:51:45,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:51:45,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 10:51:45,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366984449] [2021-03-24 10:51:45,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 10:51:45,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:51:45,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 10:51:45,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 10:51:45,125 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 196 [2021-03-24 10:51:45,126 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 61 transitions, 302 flow. Second operand has 5 states, 5 states have (on average 162.8) internal successors, (814), 5 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,126 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:51:45,126 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 196 [2021-03-24 10:51:45,126 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:51:45,204 INFO L129 PetriNetUnfolder]: 231/480 cut-off events. [2021-03-24 10:51:45,204 INFO L130 PetriNetUnfolder]: For 825/1859 co-relation queries the response was YES. [2021-03-24 10:51:45,205 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1784 conditions, 480 events. 231/480 cut-off events. For 825/1859 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 2608 event pairs, 25 based on Foata normal form. 90/514 useless extension candidates. Maximal degree in co-relation 1749. Up to 290 conditions per place. [2021-03-24 10:51:45,207 INFO L132 encePairwiseOnDemand]: 189/196 looper letters, 14 selfloop transitions, 19 changer transitions 0/76 dead transitions. [2021-03-24 10:51:45,207 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 76 transitions, 448 flow [2021-03-24 10:51:45,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 10:51:45,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 10:51:45,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1168 transitions. [2021-03-24 10:51:45,210 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8513119533527697 [2021-03-24 10:51:45,210 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1168 transitions. [2021-03-24 10:51:45,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1168 transitions. [2021-03-24 10:51:45,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:51:45,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1168 transitions. [2021-03-24 10:51:45,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 166.85714285714286) internal successors, (1168), 7 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,214 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 196.0) internal successors, (1568), 8 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,214 INFO L185 Difference]: Start difference. First operand has 72 places, 61 transitions, 302 flow. Second operand 7 states and 1168 transitions. [2021-03-24 10:51:45,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 76 transitions, 448 flow [2021-03-24 10:51:45,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 76 transitions, 443 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 10:51:45,217 INFO L241 Difference]: Finished difference. Result has 80 places, 70 transitions, 435 flow [2021-03-24 10:51:45,217 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=435, PETRI_PLACES=80, PETRI_TRANSITIONS=70} [2021-03-24 10:51:45,217 INFO L343 CegarLoopForPetriNet]: 58 programPoint places, 22 predicate places. [2021-03-24 10:51:45,217 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 70 transitions, 435 flow [2021-03-24 10:51:45,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 162.8) internal successors, (814), 5 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,218 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:51:45,218 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:51:45,218 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 10:51:45,218 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:51:45,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:51:45,218 INFO L82 PathProgramCache]: Analyzing trace with hash 505207058, now seen corresponding path program 1 times [2021-03-24 10:51:45,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:51:45,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341080407] [2021-03-24 10:51:45,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:51:45,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:51:45,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:45,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:51:45,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:45,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:51:45,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:45,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:51:45,271 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 10:51:45,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 10:51:45,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:45,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:51:45,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:51:45,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341080407] [2021-03-24 10:51:45,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:51:45,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 10:51:45,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433665809] [2021-03-24 10:51:45,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 10:51:45,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:51:45,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 10:51:45,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 10:51:45,279 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 196 [2021-03-24 10:51:45,280 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 70 transitions, 435 flow. Second operand has 6 states, 6 states have (on average 162.83333333333334) internal successors, (977), 6 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,280 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:51:45,280 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 196 [2021-03-24 10:51:45,280 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:51:45,388 INFO L129 PetriNetUnfolder]: 181/385 cut-off events. [2021-03-24 10:51:45,388 INFO L130 PetriNetUnfolder]: For 1875/5624 co-relation queries the response was YES. [2021-03-24 10:51:45,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1922 conditions, 385 events. 181/385 cut-off events. For 1875/5624 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 1912 event pairs, 2 based on Foata normal form. 125/461 useless extension candidates. Maximal degree in co-relation 1883. Up to 272 conditions per place. [2021-03-24 10:51:45,391 INFO L132 encePairwiseOnDemand]: 189/196 looper letters, 10 selfloop transitions, 28 changer transitions 4/84 dead transitions. [2021-03-24 10:51:45,391 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 84 transitions, 630 flow [2021-03-24 10:51:45,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 10:51:45,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 10:51:45,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1502 transitions. [2021-03-24 10:51:45,394 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8514739229024944 [2021-03-24 10:51:45,394 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1502 transitions. [2021-03-24 10:51:45,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1502 transitions. [2021-03-24 10:51:45,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:51:45,395 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1502 transitions. [2021-03-24 10:51:45,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 166.88888888888889) internal successors, (1502), 9 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 196.0) internal successors, (1960), 10 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,399 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 196.0) internal successors, (1960), 10 states have internal predecessors, (1960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,399 INFO L185 Difference]: Start difference. First operand has 80 places, 70 transitions, 435 flow. Second operand 9 states and 1502 transitions. [2021-03-24 10:51:45,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 84 transitions, 630 flow [2021-03-24 10:51:45,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 84 transitions, 580 flow, removed 17 selfloop flow, removed 3 redundant places. [2021-03-24 10:51:45,404 INFO L241 Difference]: Finished difference. Result has 88 places, 77 transitions, 542 flow [2021-03-24 10:51:45,404 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=542, PETRI_PLACES=88, PETRI_TRANSITIONS=77} [2021-03-24 10:51:45,405 INFO L343 CegarLoopForPetriNet]: 58 programPoint places, 30 predicate places. [2021-03-24 10:51:45,405 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 77 transitions, 542 flow [2021-03-24 10:51:45,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 162.83333333333334) internal successors, (977), 6 states have internal predecessors, (977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,405 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:51:45,405 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:51:45,405 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 10:51:45,405 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:51:45,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:51:45,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1604719975, now seen corresponding path program 1 times [2021-03-24 10:51:45,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:51:45,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451096408] [2021-03-24 10:51:45,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:51:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:51:45,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:45,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:51:45,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:45,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:51:45,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:45,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:51:45,458 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 10:51:45,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 10:51:45,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:51:45,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451096408] [2021-03-24 10:51:45,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:51:45,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 10:51:45,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151058709] [2021-03-24 10:51:45,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 10:51:45,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:51:45,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 10:51:45,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 10:51:45,466 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 196 [2021-03-24 10:51:45,466 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 77 transitions, 542 flow. Second operand has 5 states, 5 states have (on average 170.2) internal successors, (851), 5 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,466 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:51:45,466 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 196 [2021-03-24 10:51:45,466 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:51:45,529 INFO L129 PetriNetUnfolder]: 224/513 cut-off events. [2021-03-24 10:51:45,529 INFO L130 PetriNetUnfolder]: For 3608/4601 co-relation queries the response was YES. [2021-03-24 10:51:45,531 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2624 conditions, 513 events. 224/513 cut-off events. For 3608/4601 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 2988 event pairs, 4 based on Foata normal form. 15/417 useless extension candidates. Maximal degree in co-relation 2581. Up to 303 conditions per place. [2021-03-24 10:51:45,534 INFO L132 encePairwiseOnDemand]: 192/196 looper letters, 8 selfloop transitions, 2 changer transitions 1/82 dead transitions. [2021-03-24 10:51:45,534 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 82 transitions, 594 flow [2021-03-24 10:51:45,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 10:51:45,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 10:51:45,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 857 transitions. [2021-03-24 10:51:45,536 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8744897959183674 [2021-03-24 10:51:45,536 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 857 transitions. [2021-03-24 10:51:45,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 857 transitions. [2021-03-24 10:51:45,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:51:45,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 857 transitions. [2021-03-24 10:51:45,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 171.4) internal successors, (857), 5 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,539 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,539 INFO L185 Difference]: Start difference. First operand has 88 places, 77 transitions, 542 flow. Second operand 5 states and 857 transitions. [2021-03-24 10:51:45,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 82 transitions, 594 flow [2021-03-24 10:51:45,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 82 transitions, 497 flow, removed 34 selfloop flow, removed 4 redundant places. [2021-03-24 10:51:45,552 INFO L241 Difference]: Finished difference. Result has 91 places, 78 transitions, 460 flow [2021-03-24 10:51:45,553 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=445, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=460, PETRI_PLACES=91, PETRI_TRANSITIONS=78} [2021-03-24 10:51:45,553 INFO L343 CegarLoopForPetriNet]: 58 programPoint places, 33 predicate places. [2021-03-24 10:51:45,553 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 78 transitions, 460 flow [2021-03-24 10:51:45,553 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 170.2) internal successors, (851), 5 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,553 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:51:45,553 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:51:45,553 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 10:51:45,553 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:51:45,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:51:45,554 INFO L82 PathProgramCache]: Analyzing trace with hash -244402799, now seen corresponding path program 2 times [2021-03-24 10:51:45,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:51:45,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327230184] [2021-03-24 10:51:45,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:51:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:51:45,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:45,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:51:45,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:45,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:51:45,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:45,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:51:45,595 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 10:51:45,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 10:51:45,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:51:45,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327230184] [2021-03-24 10:51:45,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:51:45,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 10:51:45,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917237225] [2021-03-24 10:51:45,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 10:51:45,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:51:45,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 10:51:45,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 10:51:45,601 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 196 [2021-03-24 10:51:45,601 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 78 transitions, 460 flow. Second operand has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,601 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:51:45,601 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 196 [2021-03-24 10:51:45,601 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:51:45,696 INFO L129 PetriNetUnfolder]: 442/988 cut-off events. [2021-03-24 10:51:45,696 INFO L130 PetriNetUnfolder]: For 2717/2908 co-relation queries the response was YES. [2021-03-24 10:51:45,700 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3636 conditions, 988 events. 442/988 cut-off events. For 2717/2908 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 7169 event pairs, 8 based on Foata normal form. 21/835 useless extension candidates. Maximal degree in co-relation 3591. Up to 285 conditions per place. [2021-03-24 10:51:45,703 INFO L132 encePairwiseOnDemand]: 192/196 looper letters, 7 selfloop transitions, 2 changer transitions 1/83 dead transitions. [2021-03-24 10:51:45,703 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 83 transitions, 518 flow [2021-03-24 10:51:45,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 10:51:45,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 10:51:45,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 876 transitions. [2021-03-24 10:51:45,705 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8938775510204081 [2021-03-24 10:51:45,705 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 876 transitions. [2021-03-24 10:51:45,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 876 transitions. [2021-03-24 10:51:45,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:51:45,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 876 transitions. [2021-03-24 10:51:45,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 175.2) internal successors, (876), 5 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,717 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,718 INFO L185 Difference]: Start difference. First operand has 91 places, 78 transitions, 460 flow. Second operand 5 states and 876 transitions. [2021-03-24 10:51:45,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 83 transitions, 518 flow [2021-03-24 10:51:45,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 83 transitions, 511 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-03-24 10:51:45,745 INFO L241 Difference]: Finished difference. Result has 95 places, 79 transitions, 472 flow [2021-03-24 10:51:45,745 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=472, PETRI_PLACES=95, PETRI_TRANSITIONS=79} [2021-03-24 10:51:45,745 INFO L343 CegarLoopForPetriNet]: 58 programPoint places, 37 predicate places. [2021-03-24 10:51:45,745 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 79 transitions, 472 flow [2021-03-24 10:51:45,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,746 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:51:45,746 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:51:45,746 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-24 10:51:45,746 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:51:45,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:51:45,747 INFO L82 PathProgramCache]: Analyzing trace with hash -952864377, now seen corresponding path program 3 times [2021-03-24 10:51:45,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:51:45,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616316706] [2021-03-24 10:51:45,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:51:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:51:45,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:45,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:51:45,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:45,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:51:45,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:45,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:51:45,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:45,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:51:45,820 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-24 10:51:45,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 10:51:45,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:45,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:51:45,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:51:45,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616316706] [2021-03-24 10:51:45,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:51:45,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 10:51:45,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178996817] [2021-03-24 10:51:45,826 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 10:51:45,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:51:45,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 10:51:45,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-24 10:51:45,827 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 196 [2021-03-24 10:51:45,828 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 79 transitions, 472 flow. Second operand has 7 states, 7 states have (on average 162.85714285714286) internal successors, (1140), 7 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:45,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:51:45,828 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 196 [2021-03-24 10:51:45,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:51:46,008 INFO L129 PetriNetUnfolder]: 618/1200 cut-off events. [2021-03-24 10:51:46,008 INFO L130 PetriNetUnfolder]: For 4289/9587 co-relation queries the response was YES. [2021-03-24 10:51:46,014 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4923 conditions, 1200 events. 618/1200 cut-off events. For 4289/9587 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 8329 event pairs, 0 based on Foata normal form. 329/1274 useless extension candidates. Maximal degree in co-relation 4894. Up to 294 conditions per place. [2021-03-24 10:51:46,018 INFO L132 encePairwiseOnDemand]: 189/196 looper letters, 6 selfloop transitions, 33 changer transitions 5/88 dead transitions. [2021-03-24 10:51:46,018 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 88 transitions, 624 flow [2021-03-24 10:51:46,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 10:51:46,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 10:51:46,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1828 transitions. [2021-03-24 10:51:46,021 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8478664192949907 [2021-03-24 10:51:46,021 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1828 transitions. [2021-03-24 10:51:46,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1828 transitions. [2021-03-24 10:51:46,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:51:46,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1828 transitions. [2021-03-24 10:51:46,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 166.1818181818182) internal successors, (1828), 11 states have internal predecessors, (1828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:46,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 196.0) internal successors, (2352), 12 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:46,026 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 196.0) internal successors, (2352), 12 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:46,026 INFO L185 Difference]: Start difference. First operand has 95 places, 79 transitions, 472 flow. Second operand 11 states and 1828 transitions. [2021-03-24 10:51:46,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 88 transitions, 624 flow [2021-03-24 10:51:46,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 88 transitions, 603 flow, removed 9 selfloop flow, removed 3 redundant places. [2021-03-24 10:51:46,044 INFO L241 Difference]: Finished difference. Result has 104 places, 80 transitions, 545 flow [2021-03-24 10:51:46,044 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=545, PETRI_PLACES=104, PETRI_TRANSITIONS=80} [2021-03-24 10:51:46,045 INFO L343 CegarLoopForPetriNet]: 58 programPoint places, 46 predicate places. [2021-03-24 10:51:46,045 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 80 transitions, 545 flow [2021-03-24 10:51:46,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 162.85714285714286) internal successors, (1140), 7 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:46,045 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:51:46,045 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:51:46,045 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-24 10:51:46,045 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:51:46,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:51:46,045 INFO L82 PathProgramCache]: Analyzing trace with hash -348260191, now seen corresponding path program 1 times [2021-03-24 10:51:46,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:51:46,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941818695] [2021-03-24 10:51:46,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:51:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 10:51:46,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:46,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 10:51:46,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:46,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:51:46,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 10:51:46,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 10:51:46,090 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-24 10:51:46,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 10:51:46,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 10:51:46,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941818695] [2021-03-24 10:51:46,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 10:51:46,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 10:51:46,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478349704] [2021-03-24 10:51:46,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 10:51:46,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 10:51:46,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 10:51:46,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-24 10:51:46,096 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 196 [2021-03-24 10:51:46,097 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 80 transitions, 545 flow. Second operand has 5 states, 5 states have (on average 170.2) internal successors, (851), 5 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:46,097 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 10:51:46,097 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 196 [2021-03-24 10:51:46,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 10:51:46,246 INFO L129 PetriNetUnfolder]: 759/1652 cut-off events. [2021-03-24 10:51:46,246 INFO L130 PetriNetUnfolder]: For 5779/7109 co-relation queries the response was YES. [2021-03-24 10:51:46,254 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7155 conditions, 1652 events. 759/1652 cut-off events. For 5779/7109 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 13532 event pairs, 0 based on Foata normal form. 15/1343 useless extension candidates. Maximal degree in co-relation 7105. Up to 550 conditions per place. [2021-03-24 10:51:46,257 INFO L132 encePairwiseOnDemand]: 192/196 looper letters, 5 selfloop transitions, 2 changer transitions 13/82 dead transitions. [2021-03-24 10:51:46,257 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 82 transitions, 569 flow [2021-03-24 10:51:46,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 10:51:46,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 10:51:46,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 854 transitions. [2021-03-24 10:51:46,259 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8714285714285714 [2021-03-24 10:51:46,259 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 854 transitions. [2021-03-24 10:51:46,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 854 transitions. [2021-03-24 10:51:46,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 10:51:46,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 854 transitions. [2021-03-24 10:51:46,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 170.8) internal successors, (854), 5 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:46,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:46,262 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 196.0) internal successors, (1176), 6 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:46,262 INFO L185 Difference]: Start difference. First operand has 104 places, 80 transitions, 545 flow. Second operand 5 states and 854 transitions. [2021-03-24 10:51:46,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 82 transitions, 569 flow [2021-03-24 10:51:46,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 82 transitions, 454 flow, removed 27 selfloop flow, removed 11 redundant places. [2021-03-24 10:51:46,332 INFO L241 Difference]: Finished difference. Result has 99 places, 69 transitions, 362 flow [2021-03-24 10:51:46,332 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=362, PETRI_PLACES=99, PETRI_TRANSITIONS=69} [2021-03-24 10:51:46,332 INFO L343 CegarLoopForPetriNet]: 58 programPoint places, 41 predicate places. [2021-03-24 10:51:46,332 INFO L480 AbstractCegarLoop]: Abstraction has has 99 places, 69 transitions, 362 flow [2021-03-24 10:51:46,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 170.2) internal successors, (851), 5 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 10:51:46,332 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 10:51:46,333 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 10:51:46,333 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-24 10:51:46,333 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 10:51:46,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 10:51:46,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1280695745, now seen corresponding path program 2 times [2021-03-24 10:51:46,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 10:51:46,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907805246] [2021-03-24 10:51:46,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 10:51:46,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 10:51:46,357 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 10:51:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 10:51:46,383 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 10:51:46,416 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-24 10:51:46,416 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-24 10:51:46,416 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-24 10:51:46,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 10:51:46 BasicIcfg [2021-03-24 10:51:46,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 10:51:46,501 INFO L168 Benchmark]: Toolchain (without parser) took 11522.42 ms. Allocated memory was 255.9 MB in the beginning and 541.1 MB in the end (delta: 285.2 MB). Free memory was 234.6 MB in the beginning and 227.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 290.4 MB. Max. memory is 16.0 GB. [2021-03-24 10:51:46,501 INFO L168 Benchmark]: CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 10:51:46,501 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.87 ms. Allocated memory was 255.9 MB in the beginning and 375.4 MB in the end (delta: 119.5 MB). Free memory was 234.6 MB in the beginning and 334.6 MB in the end (delta: -100.0 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.0 GB. [2021-03-24 10:51:46,501 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.65 ms. Allocated memory is still 375.4 MB. Free memory was 334.6 MB in the beginning and 331.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 10:51:46,501 INFO L168 Benchmark]: Boogie Preprocessor took 19.60 ms. Allocated memory is still 375.4 MB. Free memory was 331.8 MB in the beginning and 329.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 10:51:46,502 INFO L168 Benchmark]: RCFGBuilder took 1300.99 ms. Allocated memory is still 375.4 MB. Free memory was 329.0 MB in the beginning and 248.9 MB in the end (delta: 80.2 MB). Peak memory consumption was 82.3 MB. Max. memory is 16.0 GB. [2021-03-24 10:51:46,502 INFO L168 Benchmark]: TraceAbstraction took 9821.87 ms. Allocated memory was 375.4 MB in the beginning and 541.1 MB in the end (delta: 165.7 MB). Free memory was 248.9 MB in the beginning and 227.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 186.6 MB. Max. memory is 16.0 GB. [2021-03-24 10:51:46,503 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 343.87 ms. Allocated memory was 255.9 MB in the beginning and 375.4 MB in the end (delta: 119.5 MB). Free memory was 234.6 MB in the beginning and 334.6 MB in the end (delta: -100.0 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 31.65 ms. Allocated memory is still 375.4 MB. Free memory was 334.6 MB in the beginning and 331.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.60 ms. Allocated memory is still 375.4 MB. Free memory was 331.8 MB in the beginning and 329.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1300.99 ms. Allocated memory is still 375.4 MB. Free memory was 329.0 MB in the beginning and 248.9 MB in the end (delta: 80.2 MB). Peak memory consumption was 82.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 9821.87 ms. Allocated memory was 375.4 MB in the beginning and 541.1 MB in the end (delta: 165.7 MB). Free memory was 248.9 MB in the beginning and 227.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 186.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6642.2ms, 125 PlacesBefore, 58 PlacesAfterwards, 114 TransitionsBefore, 46 TransitionsAfterwards, 2598 CoEnabledTransitionPairs, 5 FixpointIterations, 31 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 78 TotalNumberOfCompositions, 4482 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2352, positive: 2252, positive conditional: 0, positive unconditional: 2252, negative: 100, negative conditional: 0, negative unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1290, positive: 1259, positive conditional: 0, positive unconditional: 1259, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1290, positive: 1259, positive conditional: 0, positive unconditional: 1259, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2352, positive: 993, positive conditional: 0, positive unconditional: 993, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 1290, unknown conditional: 0, unknown unconditional: 1290] , Statistics on independence cache: Total cache size (in pairs): 154, Positive cache size: 138, Positive conditional cache size: 0, Positive unconditional cache size: 138, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p1_EAX = 0; [L716] 0 int __unbuffered_p3_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0] [L718] 0 int __unbuffered_p3_EBX = 0; [L720] 0 int a = 0; [L722] 0 int b = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0] [L723] 0 _Bool main$tmp_guard0; [L724] 0 _Bool main$tmp_guard1; [L726] 0 int x = 0; [L728] 0 int y = 0; [L730] 0 int z = 0; [L731] 0 _Bool z$flush_delayed; [L732] 0 int z$mem_tmp; [L733] 0 _Bool z$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0] [L734] 0 _Bool z$r_buff0_thd1; [L735] 0 _Bool z$r_buff0_thd2; [L736] 0 _Bool z$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0] [L737] 0 _Bool z$r_buff0_thd4; [L738] 0 _Bool z$r_buff1_thd0; [L739] 0 _Bool z$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0] [L740] 0 _Bool z$r_buff1_thd2; [L741] 0 _Bool z$r_buff1_thd3; [L742] 0 _Bool z$r_buff1_thd4; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0] [L743] 0 _Bool z$read_delayed; [L744] 0 int *z$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}] [L745] 0 int z$w_buff0; [L746] 0 _Bool z$w_buff0_used; [L747] 0 int z$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0] [L748] 0 _Bool z$w_buff1_used; [L749] 0 _Bool weak$$choice0; [L750] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L848] 0 pthread_t t1157; [L849] FCALL, FORK 0 pthread_create(&t1157, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L850] 0 pthread_t t1158; [L851] FCALL, FORK 0 pthread_create(&t1158, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L852] 0 pthread_t t1159; [L853] FCALL, FORK 0 pthread_create(&t1159, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L854] 0 pthread_t t1160; [L855] FCALL, FORK 0 pthread_create(&t1160, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L804] 4 z$w_buff1 = z$w_buff0 [L805] 4 z$w_buff0 = 2 [L806] 4 z$w_buff1_used = z$w_buff0_used [L807] 4 z$w_buff0_used = (_Bool)1 [L18] COND FALSE 4 !(!expression) [L809] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L810] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L811] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L812] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L813] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L814] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L817] 4 a = 1 [L820] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L823] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L754] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L757] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L769] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L772] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L784] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L787] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L790] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L790] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L790] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L790] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L791] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L791] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L792] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L792] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L793] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L793] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L794] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L794] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 [L826] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L826] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L827] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L827] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L828] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L828] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L829] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L829] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L830] EXPR 4 z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L830] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 [L762] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L764] 1 return 0; [L777] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L779] 2 return 0; [L797] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L799] 3 return 0; [L833] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L835] 4 return 0; [L857] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L3] COND FALSE 0 !(!cond) [L861] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L861] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L861] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L861] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L862] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L862] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L863] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L863] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L864] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L864] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L865] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L865] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 [L868] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L869] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L870] 0 z$flush_delayed = weak$$choice2 [L871] 0 z$mem_tmp = z [L872] EXPR 0 !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L872] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L873] EXPR 0 weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L873] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L874] EXPR 0 weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L874] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L875] EXPR 0 weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L875] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L876] EXPR 0 weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L876] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L877] EXPR 0 weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L877] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L878] EXPR 0 weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L878] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L879] 0 main$tmp_guard1 = !(z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L880] EXPR 0 z$flush_delayed ? z$mem_tmp : z [L880] 0 z = z$flush_delayed ? z$mem_tmp : z [L881] 0 z$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=51, weak$$choice2=255, x=1, y=1, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 117 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 9642.2ms, OverallIterations: 14, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1622.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6718.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 69 SDtfs, 96 SDslu, 84 SDs, 0 SdLazy, 417 SolverSat, 135 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 354.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 362.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=545occurred in iteration=12, InterpolantAutomatonStates: 89, 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: 39.8ms SsaConstructionTime, 308.5ms SatisfiabilityAnalysisTime, 731.1ms InterpolantComputationTime, 413 NumberOfCodeBlocks, 413 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 362 ConstructedInterpolants, 0 QuantifiedInterpolants, 1466 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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...