/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe024_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 05:07:10,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 05:07:10,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 05:07:10,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 05:07:10,862 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 05:07:10,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 05:07:10,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 05:07:10,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 05:07:10,874 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 05:07:10,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 05:07:10,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 05:07:10,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 05:07:10,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 05:07:10,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 05:07:10,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 05:07:10,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 05:07:10,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 05:07:10,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 05:07:10,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 05:07:10,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 05:07:10,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 05:07:10,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 05:07:10,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 05:07:10,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 05:07:10,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 05:07:10,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 05:07:10,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 05:07:10,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 05:07:10,914 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf [2021-03-25 05:07:10,945 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 05:07:10,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 05:07:10,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 05:07:10,948 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 05:07:10,948 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 05:07:10,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 05:07:10,949 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 05:07:10,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 05:07:10,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 05:07:10,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 05:07:10,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 05:07:10,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 05:07:10,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 05:07:10,950 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 05:07:10,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 05:07:10,950 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 05:07:10,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 05:07:10,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 05:07:10,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 05:07:10,951 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 05:07:10,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 05:07:10,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 05:07:10,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 05:07:10,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 05:07:10,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 05:07:10,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 05:07:10,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 05:07:10,952 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 05:07:10,952 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 05:07:10,952 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 05:07:10,952 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 05:07:11,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 05:07:11,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 05:07:11,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 05:07:11,267 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 05:07:11,277 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 05:07:11,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_pso.opt.i [2021-03-25 05:07:11,372 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84c6de096/21bbe42701f1454a97d8892c726c09c9/FLAGbe7ea8d93 [2021-03-25 05:07:11,820 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 05:07:11,821 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_pso.opt.i [2021-03-25 05:07:11,830 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84c6de096/21bbe42701f1454a97d8892c726c09c9/FLAGbe7ea8d93 [2021-03-25 05:07:12,148 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84c6de096/21bbe42701f1454a97d8892c726c09c9 [2021-03-25 05:07:12,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 05:07:12,152 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 05:07:12,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 05:07:12,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 05:07:12,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 05:07:12,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:07:12" (1/1) ... [2021-03-25 05:07:12,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a696369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:07:12, skipping insertion in model container [2021-03-25 05:07:12,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:07:12" (1/1) ... [2021-03-25 05:07:12,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 05:07:12,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 05:07:12,344 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/safe024_pso.opt.i[992,1005] [2021-03-25 05:07:12,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 05:07:12,502 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 05:07:12,509 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/safe024_pso.opt.i[992,1005] [2021-03-25 05:07:12,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 05:07:12,613 INFO L208 MainTranslator]: Completed translation [2021-03-25 05:07:12,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:07:12 WrapperNode [2021-03-25 05:07:12,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 05:07:12,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 05:07:12,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 05:07:12,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 05:07:12,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:07:12" (1/1) ... [2021-03-25 05:07:12,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:07:12" (1/1) ... [2021-03-25 05:07:12,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 05:07:12,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 05:07:12,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 05:07:12,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 05:07:12,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:07:12" (1/1) ... [2021-03-25 05:07:12,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:07:12" (1/1) ... [2021-03-25 05:07:12,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:07:12" (1/1) ... [2021-03-25 05:07:12,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:07:12" (1/1) ... [2021-03-25 05:07:12,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:07:12" (1/1) ... [2021-03-25 05:07:12,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:07:12" (1/1) ... [2021-03-25 05:07:12,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:07:12" (1/1) ... [2021-03-25 05:07:12,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 05:07:12,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 05:07:12,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 05:07:12,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 05:07:12,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:07:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 05:07:12,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 05:07:12,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 05:07:12,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 05:07:12,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 05:07:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 05:07:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 05:07:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 05:07:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 05:07:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 05:07:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 05:07:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 05:07:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 05:07:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 05:07:12,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 05:07:12,845 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 05:07:14,215 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 05:07:14,216 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 05:07:14,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:07:14 BoogieIcfgContainer [2021-03-25 05:07:14,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 05:07:14,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 05:07:14,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 05:07:14,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 05:07:14,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 05:07:12" (1/3) ... [2021-03-25 05:07:14,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3955e3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:07:14, skipping insertion in model container [2021-03-25 05:07:14,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:07:12" (2/3) ... [2021-03-25 05:07:14,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3955e3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:07:14, skipping insertion in model container [2021-03-25 05:07:14,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:07:14" (3/3) ... [2021-03-25 05:07:14,224 INFO L111 eAbstractionObserver]: Analyzing ICFG safe024_pso.opt.i [2021-03-25 05:07:14,229 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 05:07:14,233 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 05:07:14,233 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 05:07:14,271 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,271 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,271 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,271 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,271 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,271 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,271 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,272 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,272 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,273 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,273 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,273 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,273 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,274 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,275 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,276 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,277 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,278 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,278 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,278 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,278 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,278 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,278 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,278 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,278 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,278 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,278 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,278 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,278 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,278 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,278 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,279 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,280 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,280 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,280 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,280 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,280 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,280 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,280 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,281 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,281 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,283 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,283 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,283 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,283 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,283 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,283 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,283 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,283 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,284 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,284 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,285 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,287 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,288 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,288 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,288 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,292 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,295 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,295 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,295 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,295 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,295 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,295 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,295 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,295 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,296 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,296 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,296 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,297 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,297 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,297 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,297 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,299 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,299 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,299 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,300 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,300 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,300 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,300 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,301 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,301 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,301 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,302 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,304 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,304 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,304 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,304 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,304 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,304 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,304 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,304 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,304 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,304 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,308 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,309 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,309 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,309 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:07:14,310 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 05:07:14,324 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-25 05:07:14,350 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 05:07:14,350 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 05:07:14,350 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 05:07:14,350 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 05:07:14,350 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 05:07:14,350 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 05:07:14,350 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 05:07:14,351 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 05:07:14,362 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 98 transitions, 211 flow [2021-03-25 05:07:14,388 INFO L129 PetriNetUnfolder]: 2/95 cut-off events. [2021-03-25 05:07:14,388 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:07:14,391 INFO L84 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 95 events. 2/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2021-03-25 05:07:14,391 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 98 transitions, 211 flow [2021-03-25 05:07:14,394 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 95 transitions, 199 flow [2021-03-25 05:07:14,396 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:07:14,402 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 95 transitions, 199 flow [2021-03-25 05:07:14,404 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 95 transitions, 199 flow [2021-03-25 05:07:14,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 199 flow [2021-03-25 05:07:14,418 INFO L129 PetriNetUnfolder]: 2/95 cut-off events. [2021-03-25 05:07:14,418 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:07:14,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 95 events. 2/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2021-03-25 05:07:14,421 INFO L142 LiptonReduction]: Number of co-enabled transitions 1586 [2021-03-25 05:07:15,041 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 05:07:15,378 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 84 [2021-03-25 05:07:15,483 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-03-25 05:07:16,352 INFO L154 LiptonReduction]: Checked pairs total: 2411 [2021-03-25 05:07:16,353 INFO L156 LiptonReduction]: Total number of compositions: 64 [2021-03-25 05:07:16,358 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1963 [2021-03-25 05:07:16,369 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-25 05:07:16,370 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:07:16,370 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:07:16,372 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:07:16,372 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:07:16,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:07:16,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1477082280, now seen corresponding path program 1 times [2021-03-25 05:07:16,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:07:16,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567565483] [2021-03-25 05:07:16,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:07:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:07:16,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:16,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:07:16,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:16,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:07:16,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:07:16,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567565483] [2021-03-25 05:07:16,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:07:16,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:07:16,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407474394] [2021-03-25 05:07:16,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:07:16,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:07:16,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:07:16,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:07:16,642 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 162 [2021-03-25 05:07:16,644 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:16,645 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:07:16,645 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 162 [2021-03-25 05:07:16,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:07:16,690 INFO L129 PetriNetUnfolder]: 29/110 cut-off events. [2021-03-25 05:07:16,690 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:07:16,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 110 events. 29/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 395 event pairs, 5 based on Foata normal form. 9/110 useless extension candidates. Maximal degree in co-relation 155. Up to 41 conditions per place. [2021-03-25 05:07:16,692 INFO L132 encePairwiseOnDemand]: 158/162 looper letters, 7 selfloop transitions, 2 changer transitions 0/38 dead transitions. [2021-03-25 05:07:16,692 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 38 transitions, 103 flow [2021-03-25 05:07:16,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:07:16,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:07:16,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 441 transitions. [2021-03-25 05:07:16,702 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9074074074074074 [2021-03-25 05:07:16,703 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 441 transitions. [2021-03-25 05:07:16,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 441 transitions. [2021-03-25 05:07:16,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:07:16,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 441 transitions. [2021-03-25 05:07:16,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:16,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:16,715 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:16,716 INFO L185 Difference]: Start difference. First operand has 47 places, 38 transitions, 85 flow. Second operand 3 states and 441 transitions. [2021-03-25 05:07:16,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 38 transitions, 103 flow [2021-03-25 05:07:16,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 100 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 05:07:16,720 INFO L241 Difference]: Finished difference. Result has 44 places, 35 transitions, 80 flow [2021-03-25 05:07:16,721 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2021-03-25 05:07:16,722 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2021-03-25 05:07:16,722 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:07:16,722 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 35 transitions, 80 flow [2021-03-25 05:07:16,722 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 35 transitions, 80 flow [2021-03-25 05:07:16,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 35 transitions, 80 flow [2021-03-25 05:07:16,727 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2021-03-25 05:07:16,727 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:07:16,727 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 35 events. 0/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 05:07:16,727 INFO L142 LiptonReduction]: Number of co-enabled transitions 318 [2021-03-25 05:07:16,829 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-03-25 05:07:17,628 INFO L154 LiptonReduction]: Checked pairs total: 951 [2021-03-25 05:07:17,628 INFO L156 LiptonReduction]: Total number of compositions: 12 [2021-03-25 05:07:17,629 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 907 [2021-03-25 05:07:17,630 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 56 flow [2021-03-25 05:07:17,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:17,631 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:07:17,631 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:07:17,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 05:07:17,631 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:07:17,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:07:17,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1909478695, now seen corresponding path program 1 times [2021-03-25 05:07:17,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:07:17,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086735613] [2021-03-25 05:07:17,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:07:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:07:17,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:17,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:07:17,725 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-25 05:07:17,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 05:07:17,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:17,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:07:17,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:07:17,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086735613] [2021-03-25 05:07:17,740 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:07:17,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:07:17,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831623669] [2021-03-25 05:07:17,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:07:17,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:07:17,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:07:17,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:07:17,743 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 174 [2021-03-25 05:07:17,744 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 144.75) internal successors, (579), 4 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:17,744 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:07:17,744 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 174 [2021-03-25 05:07:17,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:07:17,805 INFO L129 PetriNetUnfolder]: 14/64 cut-off events. [2021-03-25 05:07:17,805 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:07:17,805 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 64 events. 14/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 203 event pairs, 3 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 100. Up to 18 conditions per place. [2021-03-25 05:07:17,806 INFO L132 encePairwiseOnDemand]: 168/174 looper letters, 4 selfloop transitions, 3 changer transitions 8/32 dead transitions. [2021-03-25 05:07:17,806 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 32 transitions, 104 flow [2021-03-25 05:07:17,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:07:17,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:07:17,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 736 transitions. [2021-03-25 05:07:17,810 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8459770114942529 [2021-03-25 05:07:17,812 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 736 transitions. [2021-03-25 05:07:17,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 736 transitions. [2021-03-25 05:07:17,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:07:17,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 736 transitions. [2021-03-25 05:07:17,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 147.2) internal successors, (736), 5 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:17,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:17,818 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 174.0) internal successors, (1044), 6 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:17,818 INFO L185 Difference]: Start difference. First operand has 32 places, 23 transitions, 56 flow. Second operand 5 states and 736 transitions. [2021-03-25 05:07:17,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 32 transitions, 104 flow [2021-03-25 05:07:17,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 32 transitions, 100 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 05:07:17,820 INFO L241 Difference]: Finished difference. Result has 36 places, 24 transitions, 75 flow [2021-03-25 05:07:17,820 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=75, PETRI_PLACES=36, PETRI_TRANSITIONS=24} [2021-03-25 05:07:17,820 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, -11 predicate places. [2021-03-25 05:07:17,820 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:07:17,821 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 24 transitions, 75 flow [2021-03-25 05:07:17,821 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 24 transitions, 75 flow [2021-03-25 05:07:17,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 24 transitions, 75 flow [2021-03-25 05:07:17,831 INFO L129 PetriNetUnfolder]: 5/36 cut-off events. [2021-03-25 05:07:17,831 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-03-25 05:07:17,831 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 36 events. 5/36 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 68 event pairs, 1 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 58. Up to 12 conditions per place. [2021-03-25 05:07:17,832 INFO L142 LiptonReduction]: Number of co-enabled transitions 202 [2021-03-25 05:07:18,314 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2021-03-25 05:07:18,440 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-03-25 05:07:18,726 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116 [2021-03-25 05:07:18,853 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2021-03-25 05:07:18,855 INFO L154 LiptonReduction]: Checked pairs total: 570 [2021-03-25 05:07:18,855 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 05:07:18,856 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1036 [2021-03-25 05:07:18,856 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 71 flow [2021-03-25 05:07:18,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 144.75) internal successors, (579), 4 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:18,856 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:07:18,857 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:07:18,857 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 05:07:18,857 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:07:18,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:07:18,857 INFO L82 PathProgramCache]: Analyzing trace with hash -188959709, now seen corresponding path program 1 times [2021-03-25 05:07:18,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:07:18,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789363236] [2021-03-25 05:07:18,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:07:18,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:07:18,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:18,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:07:18,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:18,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:07:18,944 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-25 05:07:18,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 05:07:18,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:07:18,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789363236] [2021-03-25 05:07:18,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:07:18,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:07:18,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756488896] [2021-03-25 05:07:18,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:07:18,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:07:18,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:07:18,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:07:18,955 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 176 [2021-03-25 05:07:18,955 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 71 flow. Second operand has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:18,955 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:07:18,955 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 176 [2021-03-25 05:07:18,956 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:07:18,991 INFO L129 PetriNetUnfolder]: 24/81 cut-off events. [2021-03-25 05:07:18,992 INFO L130 PetriNetUnfolder]: For 38/49 co-relation queries the response was YES. [2021-03-25 05:07:18,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 81 events. 24/81 cut-off events. For 38/49 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 292 event pairs, 2 based on Foata normal form. 8/88 useless extension candidates. Maximal degree in co-relation 185. Up to 30 conditions per place. [2021-03-25 05:07:18,994 INFO L132 encePairwiseOnDemand]: 170/176 looper letters, 8 selfloop transitions, 11 changer transitions 0/33 dead transitions. [2021-03-25 05:07:18,994 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 33 transitions, 161 flow [2021-03-25 05:07:18,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:07:18,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:07:18,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 724 transitions. [2021-03-25 05:07:18,998 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8227272727272728 [2021-03-25 05:07:18,998 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 724 transitions. [2021-03-25 05:07:18,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 724 transitions. [2021-03-25 05:07:19,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:07:19,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 724 transitions. [2021-03-25 05:07:19,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 144.8) internal successors, (724), 5 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,008 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,008 INFO L185 Difference]: Start difference. First operand has 31 places, 22 transitions, 71 flow. Second operand 5 states and 724 transitions. [2021-03-25 05:07:19,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 33 transitions, 161 flow [2021-03-25 05:07:19,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 33 transitions, 152 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-25 05:07:19,010 INFO L241 Difference]: Finished difference. Result has 37 places, 30 transitions, 154 flow [2021-03-25 05:07:19,010 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=154, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2021-03-25 05:07:19,010 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, -10 predicate places. [2021-03-25 05:07:19,010 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:07:19,010 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 30 transitions, 154 flow [2021-03-25 05:07:19,011 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 30 transitions, 154 flow [2021-03-25 05:07:19,011 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 30 transitions, 154 flow [2021-03-25 05:07:19,022 INFO L129 PetriNetUnfolder]: 19/74 cut-off events. [2021-03-25 05:07:19,022 INFO L130 PetriNetUnfolder]: For 67/79 co-relation queries the response was YES. [2021-03-25 05:07:19,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 74 events. 19/74 cut-off events. For 67/79 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 272 event pairs, 2 based on Foata normal form. 1/74 useless extension candidates. Maximal degree in co-relation 206. Up to 31 conditions per place. [2021-03-25 05:07:19,026 INFO L142 LiptonReduction]: Number of co-enabled transitions 262 [2021-03-25 05:07:19,028 INFO L154 LiptonReduction]: Checked pairs total: 266 [2021-03-25 05:07:19,028 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:07:19,028 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-25 05:07:19,032 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 154 flow [2021-03-25 05:07:19,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,033 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:07:19,033 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:07:19,033 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 05:07:19,033 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:07:19,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:07:19,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1396499091, now seen corresponding path program 1 times [2021-03-25 05:07:19,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:07:19,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999014982] [2021-03-25 05:07:19,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:07:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:07:19,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:19,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:07:19,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:07:19,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999014982] [2021-03-25 05:07:19,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:07:19,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 05:07:19,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451165159] [2021-03-25 05:07:19,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:07:19,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:07:19,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:07:19,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:07:19,136 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 176 [2021-03-25 05:07:19,136 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,136 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:07:19,136 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 176 [2021-03-25 05:07:19,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:07:19,148 INFO L129 PetriNetUnfolder]: 14/67 cut-off events. [2021-03-25 05:07:19,148 INFO L130 PetriNetUnfolder]: For 82/92 co-relation queries the response was YES. [2021-03-25 05:07:19,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 67 events. 14/67 cut-off events. For 82/92 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 229 event pairs, 0 based on Foata normal form. 2/69 useless extension candidates. Maximal degree in co-relation 181. Up to 24 conditions per place. [2021-03-25 05:07:19,149 INFO L132 encePairwiseOnDemand]: 173/176 looper letters, 1 selfloop transitions, 5 changer transitions 0/30 dead transitions. [2021-03-25 05:07:19,149 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 30 transitions, 166 flow [2021-03-25 05:07:19,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:07:19,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:07:19,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2021-03-25 05:07:19,151 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8825757575757576 [2021-03-25 05:07:19,151 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 466 transitions. [2021-03-25 05:07:19,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 466 transitions. [2021-03-25 05:07:19,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:07:19,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 466 transitions. [2021-03-25 05:07:19,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,153 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,153 INFO L185 Difference]: Start difference. First operand has 37 places, 30 transitions, 154 flow. Second operand 3 states and 466 transitions. [2021-03-25 05:07:19,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 30 transitions, 166 flow [2021-03-25 05:07:19,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 30 transitions, 152 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-03-25 05:07:19,156 INFO L241 Difference]: Finished difference. Result has 39 places, 30 transitions, 157 flow [2021-03-25 05:07:19,156 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=157, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2021-03-25 05:07:19,156 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, -8 predicate places. [2021-03-25 05:07:19,156 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:07:19,156 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 30 transitions, 157 flow [2021-03-25 05:07:19,157 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 30 transitions, 157 flow [2021-03-25 05:07:19,157 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 30 transitions, 157 flow [2021-03-25 05:07:19,164 INFO L129 PetriNetUnfolder]: 14/67 cut-off events. [2021-03-25 05:07:19,164 INFO L130 PetriNetUnfolder]: For 69/75 co-relation queries the response was YES. [2021-03-25 05:07:19,165 INFO L84 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 67 events. 14/67 cut-off events. For 69/75 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 227 event pairs, 0 based on Foata normal form. 1/68 useless extension candidates. Maximal degree in co-relation 170. Up to 24 conditions per place. [2021-03-25 05:07:19,166 INFO L142 LiptonReduction]: Number of co-enabled transitions 262 [2021-03-25 05:07:19,167 INFO L154 LiptonReduction]: Checked pairs total: 310 [2021-03-25 05:07:19,167 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:07:19,167 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-25 05:07:19,168 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 30 transitions, 157 flow [2021-03-25 05:07:19,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,168 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:07:19,168 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:07:19,168 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 05:07:19,168 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:07:19,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:07:19,169 INFO L82 PathProgramCache]: Analyzing trace with hash -15169455, now seen corresponding path program 1 times [2021-03-25 05:07:19,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:07:19,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973341959] [2021-03-25 05:07:19,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:07:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:07:19,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:19,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:07:19,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:19,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:07:19,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:07:19,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973341959] [2021-03-25 05:07:19,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:07:19,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:07:19,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354148716] [2021-03-25 05:07:19,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:07:19,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:07:19,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:07:19,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:07:19,233 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 176 [2021-03-25 05:07:19,234 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 157 flow. Second operand has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,234 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:07:19,234 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 176 [2021-03-25 05:07:19,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:07:19,266 INFO L129 PetriNetUnfolder]: 12/71 cut-off events. [2021-03-25 05:07:19,266 INFO L130 PetriNetUnfolder]: For 141/154 co-relation queries the response was YES. [2021-03-25 05:07:19,266 INFO L84 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 71 events. 12/71 cut-off events. For 141/154 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 273 event pairs, 2 based on Foata normal form. 12/83 useless extension candidates. Maximal degree in co-relation 182. Up to 22 conditions per place. [2021-03-25 05:07:19,267 INFO L132 encePairwiseOnDemand]: 172/176 looper letters, 1 selfloop transitions, 5 changer transitions 6/30 dead transitions. [2021-03-25 05:07:19,267 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 30 transitions, 173 flow [2021-03-25 05:07:19,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:07:19,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:07:19,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 591 transitions. [2021-03-25 05:07:19,268 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8394886363636364 [2021-03-25 05:07:19,268 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 591 transitions. [2021-03-25 05:07:19,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 591 transitions. [2021-03-25 05:07:19,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:07:19,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 591 transitions. [2021-03-25 05:07:19,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,271 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 176.0) internal successors, (880), 5 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,271 INFO L185 Difference]: Start difference. First operand has 39 places, 30 transitions, 157 flow. Second operand 4 states and 591 transitions. [2021-03-25 05:07:19,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 30 transitions, 173 flow [2021-03-25 05:07:19,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 30 transitions, 159 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-03-25 05:07:19,276 INFO L241 Difference]: Finished difference. Result has 41 places, 24 transitions, 124 flow [2021-03-25 05:07:19,276 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=124, PETRI_PLACES=41, PETRI_TRANSITIONS=24} [2021-03-25 05:07:19,276 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, -6 predicate places. [2021-03-25 05:07:19,276 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:07:19,276 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 24 transitions, 124 flow [2021-03-25 05:07:19,276 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 24 transitions, 124 flow [2021-03-25 05:07:19,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 24 transitions, 124 flow [2021-03-25 05:07:19,282 INFO L129 PetriNetUnfolder]: 7/42 cut-off events. [2021-03-25 05:07:19,282 INFO L130 PetriNetUnfolder]: For 51/52 co-relation queries the response was YES. [2021-03-25 05:07:19,282 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 42 events. 7/42 cut-off events. For 51/52 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 97 event pairs, 5 based on Foata normal form. 1/43 useless extension candidates. Maximal degree in co-relation 110. Up to 15 conditions per place. [2021-03-25 05:07:19,283 INFO L142 LiptonReduction]: Number of co-enabled transitions 186 [2021-03-25 05:07:19,284 INFO L154 LiptonReduction]: Checked pairs total: 152 [2021-03-25 05:07:19,284 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:07:19,285 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-25 05:07:19,287 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 24 transitions, 124 flow [2021-03-25 05:07:19,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 146.75) internal successors, (587), 4 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,288 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:07:19,288 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:07:19,289 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 05:07:19,289 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:07:19,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:07:19,289 INFO L82 PathProgramCache]: Analyzing trace with hash -264200193, now seen corresponding path program 1 times [2021-03-25 05:07:19,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:07:19,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147314451] [2021-03-25 05:07:19,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:07:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:07:19,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:19,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:07:19,354 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 05:07:19,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:07:19,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:19,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:07:19,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:07:19,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147314451] [2021-03-25 05:07:19,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:07:19,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:07:19,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959779638] [2021-03-25 05:07:19,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:07:19,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:07:19,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:07:19,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:07:19,361 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 176 [2021-03-25 05:07:19,361 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 24 transitions, 124 flow. Second operand has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,361 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:07:19,362 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 176 [2021-03-25 05:07:19,362 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:07:19,407 INFO L129 PetriNetUnfolder]: 49/127 cut-off events. [2021-03-25 05:07:19,407 INFO L130 PetriNetUnfolder]: For 235/246 co-relation queries the response was YES. [2021-03-25 05:07:19,408 INFO L84 FinitePrefix]: Finished finitePrefix Result has 360 conditions, 127 events. 49/127 cut-off events. For 235/246 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 549 event pairs, 22 based on Foata normal form. 12/129 useless extension candidates. Maximal degree in co-relation 342. Up to 64 conditions per place. [2021-03-25 05:07:19,409 INFO L132 encePairwiseOnDemand]: 170/176 looper letters, 7 selfloop transitions, 7 changer transitions 2/34 dead transitions. [2021-03-25 05:07:19,409 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 34 transitions, 176 flow [2021-03-25 05:07:19,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:07:19,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:07:19,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 753 transitions. [2021-03-25 05:07:19,411 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8556818181818182 [2021-03-25 05:07:19,411 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 753 transitions. [2021-03-25 05:07:19,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 753 transitions. [2021-03-25 05:07:19,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:07:19,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 753 transitions. [2021-03-25 05:07:19,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 150.6) internal successors, (753), 5 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,417 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,417 INFO L185 Difference]: Start difference. First operand has 41 places, 24 transitions, 124 flow. Second operand 5 states and 753 transitions. [2021-03-25 05:07:19,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 34 transitions, 176 flow [2021-03-25 05:07:19,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 34 transitions, 151 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-25 05:07:19,419 INFO L241 Difference]: Finished difference. Result has 42 places, 30 transitions, 153 flow [2021-03-25 05:07:19,420 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=153, PETRI_PLACES=42, PETRI_TRANSITIONS=30} [2021-03-25 05:07:19,420 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, -5 predicate places. [2021-03-25 05:07:19,420 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:07:19,420 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 30 transitions, 153 flow [2021-03-25 05:07:19,420 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 30 transitions, 153 flow [2021-03-25 05:07:19,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 30 transitions, 153 flow [2021-03-25 05:07:19,438 INFO L129 PetriNetUnfolder]: 44/121 cut-off events. [2021-03-25 05:07:19,438 INFO L130 PetriNetUnfolder]: For 133/165 co-relation queries the response was YES. [2021-03-25 05:07:19,439 INFO L84 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 121 events. 44/121 cut-off events. For 133/165 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 542 event pairs, 19 based on Foata normal form. 1/111 useless extension candidates. Maximal degree in co-relation 352. Up to 64 conditions per place. [2021-03-25 05:07:19,439 INFO L142 LiptonReduction]: Number of co-enabled transitions 236 [2021-03-25 05:07:19,445 INFO L154 LiptonReduction]: Checked pairs total: 295 [2021-03-25 05:07:19,445 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:07:19,445 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-03-25 05:07:19,447 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 29 transitions, 147 flow [2021-03-25 05:07:19,447 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 147.75) internal successors, (591), 4 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,447 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:07:19,447 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:07:19,447 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 05:07:19,448 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:07:19,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:07:19,448 INFO L82 PathProgramCache]: Analyzing trace with hash -571010088, now seen corresponding path program 1 times [2021-03-25 05:07:19,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:07:19,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942972848] [2021-03-25 05:07:19,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:07:19,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:07:19,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:19,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:07:19,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:19,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:07:19,510 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 05:07:19,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:07:19,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:19,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:07:19,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:07:19,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942972848] [2021-03-25 05:07:19,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:07:19,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 05:07:19,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956360285] [2021-03-25 05:07:19,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 05:07:19,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:07:19,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 05:07:19,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 05:07:19,523 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 176 [2021-03-25 05:07:19,523 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 29 transitions, 147 flow. Second operand has 5 states, 5 states have (on average 147.8) internal successors, (739), 5 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,523 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:07:19,523 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 176 [2021-03-25 05:07:19,524 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:07:19,565 INFO L129 PetriNetUnfolder]: 24/80 cut-off events. [2021-03-25 05:07:19,565 INFO L130 PetriNetUnfolder]: For 111/160 co-relation queries the response was YES. [2021-03-25 05:07:19,565 INFO L84 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 80 events. 24/80 cut-off events. For 111/160 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 266 event pairs, 4 based on Foata normal form. 21/98 useless extension candidates. Maximal degree in co-relation 272. Up to 45 conditions per place. [2021-03-25 05:07:19,565 INFO L132 encePairwiseOnDemand]: 170/176 looper letters, 5 selfloop transitions, 10 changer transitions 4/37 dead transitions. [2021-03-25 05:07:19,565 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 37 transitions, 231 flow [2021-03-25 05:07:19,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 05:07:19,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 05:07:19,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 903 transitions. [2021-03-25 05:07:19,567 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8551136363636364 [2021-03-25 05:07:19,567 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 903 transitions. [2021-03-25 05:07:19,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 903 transitions. [2021-03-25 05:07:19,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:07:19,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 903 transitions. [2021-03-25 05:07:19,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 150.5) internal successors, (903), 6 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,570 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,571 INFO L185 Difference]: Start difference. First operand has 42 places, 29 transitions, 147 flow. Second operand 6 states and 903 transitions. [2021-03-25 05:07:19,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 37 transitions, 231 flow [2021-03-25 05:07:19,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 37 transitions, 225 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 05:07:19,573 INFO L241 Difference]: Finished difference. Result has 46 places, 33 transitions, 209 flow [2021-03-25 05:07:19,573 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=209, PETRI_PLACES=46, PETRI_TRANSITIONS=33} [2021-03-25 05:07:19,573 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, -1 predicate places. [2021-03-25 05:07:19,573 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:07:19,574 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 33 transitions, 209 flow [2021-03-25 05:07:19,574 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 33 transitions, 209 flow [2021-03-25 05:07:19,574 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 33 transitions, 209 flow [2021-03-25 05:07:19,582 INFO L129 PetriNetUnfolder]: 19/75 cut-off events. [2021-03-25 05:07:19,582 INFO L130 PetriNetUnfolder]: For 173/215 co-relation queries the response was YES. [2021-03-25 05:07:19,583 INFO L84 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 75 events. 19/75 cut-off events. For 173/215 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 262 event pairs, 3 based on Foata normal form. 2/74 useless extension candidates. Maximal degree in co-relation 269. Up to 41 conditions per place. [2021-03-25 05:07:19,583 INFO L142 LiptonReduction]: Number of co-enabled transitions 212 [2021-03-25 05:07:19,590 INFO L154 LiptonReduction]: Checked pairs total: 336 [2021-03-25 05:07:19,590 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:07:19,590 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-03-25 05:07:19,590 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 32 transitions, 201 flow [2021-03-25 05:07:19,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 147.8) internal successors, (739), 5 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,591 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:07:19,591 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:07:19,591 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 05:07:19,591 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:07:19,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:07:19,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1901661898, now seen corresponding path program 1 times [2021-03-25 05:07:19,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:07:19,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381750624] [2021-03-25 05:07:19,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:07:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:07:19,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:19,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:07:19,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:19,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:07:19,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:19,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:07:19,672 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 05:07:19,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:07:19,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:19,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:07:19,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:07:19,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381750624] [2021-03-25 05:07:19,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:07:19,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:07:19,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452961629] [2021-03-25 05:07:19,680 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 05:07:19,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:07:19,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 05:07:19,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 05:07:19,681 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 176 [2021-03-25 05:07:19,681 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 32 transitions, 201 flow. Second operand has 6 states, 6 states have (on average 147.83333333333334) internal successors, (887), 6 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,681 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:07:19,682 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 176 [2021-03-25 05:07:19,682 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:07:19,725 INFO L129 PetriNetUnfolder]: 11/48 cut-off events. [2021-03-25 05:07:19,725 INFO L130 PetriNetUnfolder]: For 112/146 co-relation queries the response was YES. [2021-03-25 05:07:19,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 48 events. 11/48 cut-off events. For 112/146 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 99 event pairs, 0 based on Foata normal form. 18/65 useless extension candidates. Maximal degree in co-relation 178. Up to 25 conditions per place. [2021-03-25 05:07:19,726 INFO L132 encePairwiseOnDemand]: 170/176 looper letters, 2 selfloop transitions, 11 changer transitions 3/34 dead transitions. [2021-03-25 05:07:19,726 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 34 transitions, 245 flow [2021-03-25 05:07:19,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 05:07:19,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 05:07:19,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1047 transitions. [2021-03-25 05:07:19,728 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8498376623376623 [2021-03-25 05:07:19,728 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1047 transitions. [2021-03-25 05:07:19,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1047 transitions. [2021-03-25 05:07:19,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:07:19,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1047 transitions. [2021-03-25 05:07:19,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 149.57142857142858) internal successors, (1047), 7 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 176.0) internal successors, (1408), 8 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,732 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 176.0) internal successors, (1408), 8 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:19,732 INFO L185 Difference]: Start difference. First operand has 46 places, 32 transitions, 201 flow. Second operand 7 states and 1047 transitions. [2021-03-25 05:07:19,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 34 transitions, 245 flow [2021-03-25 05:07:19,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 34 transitions, 210 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-03-25 05:07:19,733 INFO L241 Difference]: Finished difference. Result has 49 places, 31 transitions, 190 flow [2021-03-25 05:07:19,733 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=190, PETRI_PLACES=49, PETRI_TRANSITIONS=31} [2021-03-25 05:07:19,733 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, 2 predicate places. [2021-03-25 05:07:19,733 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:07:19,734 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 31 transitions, 190 flow [2021-03-25 05:07:19,734 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 31 transitions, 190 flow [2021-03-25 05:07:19,734 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 31 transitions, 190 flow [2021-03-25 05:07:19,739 INFO L129 PetriNetUnfolder]: 9/45 cut-off events. [2021-03-25 05:07:19,739 INFO L130 PetriNetUnfolder]: For 65/71 co-relation queries the response was YES. [2021-03-25 05:07:19,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 45 events. 9/45 cut-off events. For 65/71 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 88 event pairs, 0 based on Foata normal form. 2/46 useless extension candidates. Maximal degree in co-relation 147. Up to 15 conditions per place. [2021-03-25 05:07:19,739 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-25 05:07:20,045 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-03-25 05:07:20,178 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-03-25 05:07:20,497 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-03-25 05:07:20,656 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-03-25 05:07:20,660 INFO L154 LiptonReduction]: Checked pairs total: 360 [2021-03-25 05:07:20,660 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 05:07:20,660 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 927 [2021-03-25 05:07:20,661 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 28 transitions, 176 flow [2021-03-25 05:07:20,661 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 147.83333333333334) internal successors, (887), 6 states have internal predecessors, (887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:20,661 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:07:20,661 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:07:20,661 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 05:07:20,661 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:07:20,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:07:20,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1730177738, now seen corresponding path program 1 times [2021-03-25 05:07:20,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:07:20,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173664018] [2021-03-25 05:07:20,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:07:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:07:20,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:20,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:07:20,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:20,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:07:20,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:20,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:07:20,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:07:20,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173664018] [2021-03-25 05:07:20,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:07:20,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:07:20,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226054434] [2021-03-25 05:07:20,759 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:07:20,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:07:20,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:07:20,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:07:20,760 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 178 [2021-03-25 05:07:20,760 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 28 transitions, 176 flow. Second operand has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:20,760 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:07:20,760 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 178 [2021-03-25 05:07:20,760 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:07:20,778 INFO L129 PetriNetUnfolder]: 14/54 cut-off events. [2021-03-25 05:07:20,779 INFO L130 PetriNetUnfolder]: For 148/162 co-relation queries the response was YES. [2021-03-25 05:07:20,779 INFO L84 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 54 events. 14/54 cut-off events. For 148/162 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 139 event pairs, 0 based on Foata normal form. 8/61 useless extension candidates. Maximal degree in co-relation 188. Up to 19 conditions per place. [2021-03-25 05:07:20,779 INFO L132 encePairwiseOnDemand]: 175/178 looper letters, 3 selfloop transitions, 1 changer transitions 5/29 dead transitions. [2021-03-25 05:07:20,779 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 29 transitions, 192 flow [2021-03-25 05:07:20,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:07:20,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:07:20,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 590 transitions. [2021-03-25 05:07:20,781 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8286516853932584 [2021-03-25 05:07:20,781 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 590 transitions. [2021-03-25 05:07:20,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 590 transitions. [2021-03-25 05:07:20,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:07:20,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 590 transitions. [2021-03-25 05:07:20,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 147.5) internal successors, (590), 4 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:20,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 178.0) internal successors, (890), 5 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:20,783 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 178.0) internal successors, (890), 5 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:20,784 INFO L185 Difference]: Start difference. First operand has 45 places, 28 transitions, 176 flow. Second operand 4 states and 590 transitions. [2021-03-25 05:07:20,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 29 transitions, 192 flow [2021-03-25 05:07:20,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 29 transitions, 150 flow, removed 12 selfloop flow, removed 7 redundant places. [2021-03-25 05:07:20,787 INFO L241 Difference]: Finished difference. Result has 43 places, 24 transitions, 121 flow [2021-03-25 05:07:20,787 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=121, PETRI_PLACES=43, PETRI_TRANSITIONS=24} [2021-03-25 05:07:20,787 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, -4 predicate places. [2021-03-25 05:07:20,787 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:07:20,787 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 24 transitions, 121 flow [2021-03-25 05:07:20,787 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 24 transitions, 121 flow [2021-03-25 05:07:20,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 24 transitions, 121 flow [2021-03-25 05:07:20,793 INFO L129 PetriNetUnfolder]: 6/32 cut-off events. [2021-03-25 05:07:20,793 INFO L130 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2021-03-25 05:07:20,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 32 events. 6/32 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 50 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 82. Up to 10 conditions per place. [2021-03-25 05:07:20,793 INFO L142 LiptonReduction]: Number of co-enabled transitions 80 [2021-03-25 05:07:21,462 WARN L205 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 177 [2021-03-25 05:07:21,724 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2021-03-25 05:07:22,958 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 302 DAG size of output: 258 [2021-03-25 05:07:23,487 WARN L205 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-03-25 05:07:23,604 INFO L154 LiptonReduction]: Checked pairs total: 130 [2021-03-25 05:07:23,604 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 05:07:23,604 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2817 [2021-03-25 05:07:23,605 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 21 transitions, 113 flow [2021-03-25 05:07:23,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:23,605 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:07:23,605 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:07:23,605 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 05:07:23,605 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:07:23,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:07:23,605 INFO L82 PathProgramCache]: Analyzing trace with hash -792755972, now seen corresponding path program 1 times [2021-03-25 05:07:23,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:07:23,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832867017] [2021-03-25 05:07:23,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:07:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:07:23,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:23,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 05:07:23,699 INFO L142 QuantifierPusher]: treesize reduction 14, result has 79.4 percent of original size [2021-03-25 05:07:23,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-25 05:07:23,721 INFO L142 QuantifierPusher]: treesize reduction 9, result has 67.9 percent of original size [2021-03-25 05:07:23,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 05:07:23,736 INFO L142 QuantifierPusher]: treesize reduction 17, result has 70.7 percent of original size [2021-03-25 05:07:23,738 INFO L147 QuantifierPusher]: treesize reduction 9, result has 78.0 percent of original size 32 [2021-03-25 05:07:23,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:23,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 05:07:23,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:07:23,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832867017] [2021-03-25 05:07:23,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:07:23,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:07:23,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184812055] [2021-03-25 05:07:23,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 05:07:23,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:07:23,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 05:07:23,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-25 05:07:23,766 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 181 [2021-03-25 05:07:23,767 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 21 transitions, 113 flow. Second operand has 7 states, 7 states have (on average 123.14285714285714) internal successors, (862), 7 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:23,767 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:07:23,767 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 181 [2021-03-25 05:07:23,767 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:07:23,899 INFO L129 PetriNetUnfolder]: 21/67 cut-off events. [2021-03-25 05:07:23,900 INFO L130 PetriNetUnfolder]: For 180/191 co-relation queries the response was YES. [2021-03-25 05:07:23,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 67 events. 21/67 cut-off events. For 180/191 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 219 event pairs, 0 based on Foata normal form. 10/74 useless extension candidates. Maximal degree in co-relation 199. Up to 24 conditions per place. [2021-03-25 05:07:23,900 INFO L132 encePairwiseOnDemand]: 174/181 looper letters, 5 selfloop transitions, 8 changer transitions 2/29 dead transitions. [2021-03-25 05:07:23,900 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 29 transitions, 185 flow [2021-03-25 05:07:23,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-25 05:07:23,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-25 05:07:23,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 993 transitions. [2021-03-25 05:07:23,904 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6857734806629834 [2021-03-25 05:07:23,904 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 993 transitions. [2021-03-25 05:07:23,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 993 transitions. [2021-03-25 05:07:23,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:07:23,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 993 transitions. [2021-03-25 05:07:23,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 124.125) internal successors, (993), 8 states have internal predecessors, (993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:23,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 181.0) internal successors, (1629), 9 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:23,909 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 181.0) internal successors, (1629), 9 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:23,909 INFO L185 Difference]: Start difference. First operand has 38 places, 21 transitions, 113 flow. Second operand 8 states and 993 transitions. [2021-03-25 05:07:23,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 29 transitions, 185 flow [2021-03-25 05:07:23,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 29 transitions, 150 flow, removed 11 selfloop flow, removed 6 redundant places. [2021-03-25 05:07:23,911 INFO L241 Difference]: Finished difference. Result has 43 places, 26 transitions, 148 flow [2021-03-25 05:07:23,912 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=148, PETRI_PLACES=43, PETRI_TRANSITIONS=26} [2021-03-25 05:07:23,912 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, -4 predicate places. [2021-03-25 05:07:23,912 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:07:23,912 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 26 transitions, 148 flow [2021-03-25 05:07:23,912 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 26 transitions, 148 flow [2021-03-25 05:07:23,913 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 26 transitions, 148 flow [2021-03-25 05:07:23,917 INFO L129 PetriNetUnfolder]: 13/46 cut-off events. [2021-03-25 05:07:23,917 INFO L130 PetriNetUnfolder]: For 48/49 co-relation queries the response was YES. [2021-03-25 05:07:23,917 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 46 events. 13/46 cut-off events. For 48/49 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 118 event pairs, 0 based on Foata normal form. 1/46 useless extension candidates. Maximal degree in co-relation 128. Up to 16 conditions per place. [2021-03-25 05:07:23,918 INFO L142 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-25 05:07:24,105 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-03-25 05:07:24,505 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 90 [2021-03-25 05:07:24,631 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-03-25 05:07:24,750 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 65 [2021-03-25 05:07:25,032 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 84 [2021-03-25 05:07:25,088 INFO L154 LiptonReduction]: Checked pairs total: 9 [2021-03-25 05:07:25,088 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 05:07:25,089 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1177 [2021-03-25 05:07:25,090 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 26 transitions, 150 flow [2021-03-25 05:07:25,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 123.14285714285714) internal successors, (862), 7 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:25,090 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:07:25,090 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:07:25,090 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 05:07:25,090 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:07:25,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:07:25,091 INFO L82 PathProgramCache]: Analyzing trace with hash 2090470722, now seen corresponding path program 1 times [2021-03-25 05:07:25,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:07:25,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606705533] [2021-03-25 05:07:25,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:07:25,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:07:25,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:25,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 05:07:25,173 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 05:07:25,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 05:07:25,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:25,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-25 05:07:25,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:25,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-25 05:07:25,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:07:25,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:07:25,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:07:25,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606705533] [2021-03-25 05:07:25,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:07:25,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-25 05:07:25,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362571255] [2021-03-25 05:07:25,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-25 05:07:25,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:07:25,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-25 05:07:25,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-25 05:07:25,211 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 183 [2021-03-25 05:07:25,211 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 26 transitions, 150 flow. Second operand has 7 states, 7 states have (on average 125.85714285714286) internal successors, (881), 7 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:25,211 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:07:25,211 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 183 [2021-03-25 05:07:25,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:07:25,290 INFO L129 PetriNetUnfolder]: 15/54 cut-off events. [2021-03-25 05:07:25,290 INFO L130 PetriNetUnfolder]: For 160/176 co-relation queries the response was YES. [2021-03-25 05:07:25,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 54 events. 15/54 cut-off events. For 160/176 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 159 event pairs, 1 based on Foata normal form. 12/65 useless extension candidates. Maximal degree in co-relation 170. Up to 18 conditions per place. [2021-03-25 05:07:25,290 INFO L132 encePairwiseOnDemand]: 177/183 looper letters, 3 selfloop transitions, 4 changer transitions 5/27 dead transitions. [2021-03-25 05:07:25,290 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 27 transitions, 180 flow [2021-03-25 05:07:25,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 05:07:25,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 05:07:25,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 761 transitions. [2021-03-25 05:07:25,292 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6930783242258652 [2021-03-25 05:07:25,292 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 761 transitions. [2021-03-25 05:07:25,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 761 transitions. [2021-03-25 05:07:25,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:07:25,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 761 transitions. [2021-03-25 05:07:25,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.83333333333333) internal successors, (761), 6 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:25,295 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 183.0) internal successors, (1281), 7 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:25,295 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 183.0) internal successors, (1281), 7 states have internal predecessors, (1281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:25,296 INFO L185 Difference]: Start difference. First operand has 42 places, 26 transitions, 150 flow. Second operand 6 states and 761 transitions. [2021-03-25 05:07:25,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 27 transitions, 180 flow [2021-03-25 05:07:25,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 27 transitions, 161 flow, removed 5 selfloop flow, removed 4 redundant places. [2021-03-25 05:07:25,297 INFO L241 Difference]: Finished difference. Result has 43 places, 21 transitions, 111 flow [2021-03-25 05:07:25,297 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=183, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=111, PETRI_PLACES=43, PETRI_TRANSITIONS=21} [2021-03-25 05:07:25,297 INFO L343 CegarLoopForPetriNet]: 47 programPoint places, -4 predicate places. [2021-03-25 05:07:25,297 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:07:25,297 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 21 transitions, 111 flow [2021-03-25 05:07:25,297 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 21 transitions, 111 flow [2021-03-25 05:07:25,297 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 21 transitions, 111 flow [2021-03-25 05:07:25,302 INFO L129 PetriNetUnfolder]: 5/24 cut-off events. [2021-03-25 05:07:25,302 INFO L130 PetriNetUnfolder]: For 30/32 co-relation queries the response was YES. [2021-03-25 05:07:25,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 24 events. 5/24 cut-off events. For 30/32 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 24 event pairs, 0 based on Foata normal form. 1/24 useless extension candidates. Maximal degree in co-relation 62. Up to 8 conditions per place. [2021-03-25 05:07:25,302 INFO L142 LiptonReduction]: Number of co-enabled transitions 26 [2021-03-25 05:07:25,303 INFO L154 LiptonReduction]: Checked pairs total: 28 [2021-03-25 05:07:25,303 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:07:25,304 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-25 05:07:25,304 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 21 transitions, 111 flow [2021-03-25 05:07:25,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 125.85714285714286) internal successors, (881), 7 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 05:07:25,304 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:07:25,305 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:07:25,305 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 05:07:25,305 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:07:25,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:07:25,305 INFO L82 PathProgramCache]: Analyzing trace with hash 519049510, now seen corresponding path program 2 times [2021-03-25 05:07:25,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:07:25,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240400108] [2021-03-25 05:07:25,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:07:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 05:07:25,343 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 05:07:25,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 05:07:25,379 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 05:07:25,459 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 05:07:25,460 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 05:07:25,460 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 05:07:25,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 05:07:25 BasicIcfg [2021-03-25 05:07:25,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 05:07:25,543 INFO L168 Benchmark]: Toolchain (without parser) took 13391.54 ms. Allocated memory was 341.8 MB in the beginning and 597.7 MB in the end (delta: 255.9 MB). Free memory was 304.8 MB in the beginning and 556.5 MB in the end (delta: -251.6 MB). Peak memory consumption was 337.5 MB. Max. memory is 16.0 GB. [2021-03-25 05:07:25,543 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 341.8 MB. Free memory was 323.3 MB in the beginning and 323.2 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 05:07:25,544 INFO L168 Benchmark]: CACSL2BoogieTranslator took 458.44 ms. Allocated memory is still 341.8 MB. Free memory was 304.6 MB in the beginning and 302.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.0 GB. [2021-03-25 05:07:25,544 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.81 ms. Allocated memory is still 341.8 MB. Free memory was 302.9 MB in the beginning and 300.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 05:07:25,544 INFO L168 Benchmark]: Boogie Preprocessor took 34.31 ms. Allocated memory is still 341.8 MB. Free memory was 300.8 MB in the beginning and 298.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 05:07:25,544 INFO L168 Benchmark]: RCFGBuilder took 1499.39 ms. Allocated memory is still 341.8 MB. Free memory was 298.7 MB in the beginning and 288.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 172.0 MB. Max. memory is 16.0 GB. [2021-03-25 05:07:25,544 INFO L168 Benchmark]: TraceAbstraction took 11323.54 ms. Allocated memory was 341.8 MB in the beginning and 597.7 MB in the end (delta: 255.9 MB). Free memory was 287.7 MB in the beginning and 556.5 MB in the end (delta: -268.7 MB). Peak memory consumption was 317.4 MB. Max. memory is 16.0 GB. [2021-03-25 05:07:25,545 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 341.8 MB. Free memory was 323.3 MB in the beginning and 323.2 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 458.44 ms. Allocated memory is still 341.8 MB. Free memory was 304.6 MB in the beginning and 302.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 68.81 ms. Allocated memory is still 341.8 MB. Free memory was 302.9 MB in the beginning and 300.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 34.31 ms. Allocated memory is still 341.8 MB. Free memory was 300.8 MB in the beginning and 298.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1499.39 ms. Allocated memory is still 341.8 MB. Free memory was 298.7 MB in the beginning and 288.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 172.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 11323.54 ms. Allocated memory was 341.8 MB in the beginning and 597.7 MB in the end (delta: 255.9 MB). Free memory was 287.7 MB in the beginning and 556.5 MB in the end (delta: -268.7 MB). Peak memory consumption was 317.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1951.7ms, 103 PlacesBefore, 47 PlacesAfterwards, 95 TransitionsBefore, 38 TransitionsAfterwards, 1586 CoEnabledTransitionPairs, 4 FixpointIterations, 28 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 64 TotalNumberOfCompositions, 2411 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1201, positive: 1139, positive conditional: 0, positive unconditional: 1139, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 752, positive: 726, positive conditional: 0, positive unconditional: 726, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 752, positive: 726, positive conditional: 0, positive unconditional: 726, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1201, positive: 413, positive conditional: 0, positive unconditional: 413, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 752, unknown conditional: 0, unknown unconditional: 752] , Statistics on independence cache: Total cache size (in pairs): 83, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 906.0ms, 44 PlacesBefore, 32 PlacesAfterwards, 35 TransitionsBefore, 23 TransitionsAfterwards, 318 CoEnabledTransitionPairs, 3 FixpointIterations, 7 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 12 TotalNumberOfCompositions, 951 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 296, positive: 232, positive conditional: 0, positive unconditional: 232, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 72, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 72, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 296, positive: 174, positive conditional: 0, positive unconditional: 174, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 72, unknown conditional: 0, unknown unconditional: 72] , Statistics on independence cache: Total cache size (in pairs): 85, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1034.3ms, 36 PlacesBefore, 31 PlacesAfterwards, 24 TransitionsBefore, 22 TransitionsAfterwards, 202 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 570 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 159, positive: 117, positive conditional: 0, positive unconditional: 117, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 159, positive: 114, positive conditional: 0, positive unconditional: 114, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 89, Positive cache size: 65, Positive conditional cache size: 0, Positive unconditional cache size: 65, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.4ms, 37 PlacesBefore, 37 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 262 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 266 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 50, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 50, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 92, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.6ms, 39 PlacesBefore, 39 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 262 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 310 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 77, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 77, positive: 56, positive conditional: 0, positive unconditional: 56, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 95, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.2ms, 41 PlacesBefore, 41 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 186 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 152 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 45, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 45, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 100, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.0ms, 42 PlacesBefore, 42 PlacesAfterwards, 30 TransitionsBefore, 29 TransitionsAfterwards, 236 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 295 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 174, positive: 156, positive conditional: 0, positive unconditional: 156, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 174, positive: 155, positive conditional: 0, positive unconditional: 155, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 91, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.1ms, 46 PlacesBefore, 46 PlacesAfterwards, 33 TransitionsBefore, 32 TransitionsAfterwards, 212 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 336 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 161, positive: 141, positive conditional: 0, positive unconditional: 141, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 161, positive: 130, positive conditional: 0, positive unconditional: 130, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , Statistics on independence cache: Total cache size (in pairs): 94, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 926.6ms, 49 PlacesBefore, 45 PlacesAfterwards, 31 TransitionsBefore, 28 TransitionsAfterwards, 152 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 360 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 224, positive: 194, positive conditional: 0, positive unconditional: 194, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 224, positive: 191, positive conditional: 0, positive unconditional: 191, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 73, Positive cache size: 58, Positive conditional cache size: 0, Positive unconditional cache size: 58, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2816.8ms, 43 PlacesBefore, 38 PlacesAfterwards, 24 TransitionsBefore, 21 TransitionsAfterwards, 80 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 130 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 44, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 44, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 33, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1175.9ms, 43 PlacesBefore, 42 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 9 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 20, Positive conditional cache size: 0, Positive unconditional cache size: 20, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.2ms, 43 PlacesBefore, 40 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 26 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 28 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 16, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 27, Positive cache size: 21, Positive conditional cache size: 0, Positive unconditional cache size: 21, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L716] 0 int __unbuffered_p2_EBX = 0; [L717] 0 _Bool main$tmp_guard0; [L718] 0 _Bool main$tmp_guard1; [L720] 0 int x = 0; [L721] 0 _Bool x$flush_delayed; [L722] 0 int x$mem_tmp; [L723] 0 _Bool x$r_buff0_thd0; [L724] 0 _Bool x$r_buff0_thd1; [L725] 0 _Bool x$r_buff0_thd2; [L726] 0 _Bool x$r_buff0_thd3; [L727] 0 _Bool x$r_buff1_thd0; [L728] 0 _Bool x$r_buff1_thd1; [L729] 0 _Bool x$r_buff1_thd2; [L730] 0 _Bool x$r_buff1_thd3; [L731] 0 _Bool x$read_delayed; [L732] 0 int *x$read_delayed_var; [L733] 0 int x$w_buff0; [L734] 0 _Bool x$w_buff0_used; [L735] 0 int x$w_buff1; [L736] 0 _Bool x$w_buff1_used; [L738] 0 int y = 0; [L740] 0 int z = 0; [L741] 0 _Bool weak$$choice0; [L742] 0 _Bool weak$$choice2; [L833] 0 pthread_t t2354; [L834] FCALL, FORK 0 pthread_create(&t2354, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L835] 0 pthread_t t2355; [L836] FCALL, FORK 0 pthread_create(&t2355, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L837] 0 pthread_t t2356; [L838] FCALL, FORK 0 pthread_create(&t2356, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L776] 2 x$w_buff1 = x$w_buff0 [L777] 2 x$w_buff0 = 1 [L778] 2 x$w_buff1_used = x$w_buff0_used [L779] 2 x$w_buff0_used = (_Bool)1 [L19] COND FALSE 2 !(!expression) [L781] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L782] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L783] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L784] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L785] 2 x$r_buff0_thd2 = (_Bool)1 [L788] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L805] 3 __unbuffered_p2_EAX = y [L808] 3 __unbuffered_p2_EBX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L811] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L811] EXPR 3 x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x [L811] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L811] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L812] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L812] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L813] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L813] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L814] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L814] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L815] EXPR 3 x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 [L815] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 [L746] 1 z = 1 [L751] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L752] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L753] 1 x$flush_delayed = weak$$choice2 [L754] 1 x$mem_tmp = x [L755] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L755] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L756] EXPR 1 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L756] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0) [L756] EXPR 1 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L756] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L757] EXPR 1 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L757] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1) [L757] EXPR 1 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L757] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L758] EXPR 1 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L758] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used) [L758] EXPR 1 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L758] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L759] EXPR 1 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L759] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L759] EXPR 1 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L759] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L760] EXPR 1 weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L760] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1) [L760] EXPR 1 weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L760] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L761] EXPR 1 weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L761] EXPR 1 !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L761] EXPR 1 weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L761] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L762] 1 __unbuffered_p0_EAX = x [L763] EXPR 1 x$flush_delayed ? x$mem_tmp : x [L763] 1 x = x$flush_delayed ? x$mem_tmp : x [L764] 1 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L791] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L791] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L792] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L792] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L793] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L793] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L794] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L794] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L795] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L795] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L798] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L800] 2 return 0; [L818] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L820] 3 return 0; [L769] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L771] 1 return 0; [L840] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L4] COND FALSE 0 !(!cond) [L844] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L844] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L844] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L844] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L845] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L845] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L846] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L846] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L847] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L847] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L848] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L848] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L851] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L19] COND TRUE 0 !expression [L19] 0 reach_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 97 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 11115.1ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 710.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2014.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 42 SDtfs, 29 SDslu, 25 SDs, 0 SdLazy, 200 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 210.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 239.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=7, InterpolantAutomatonStates: 56, 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: 39.4ms SsaConstructionTime, 376.4ms SatisfiabilityAnalysisTime, 705.6ms InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 959 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...