/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi007_power.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 23:11:49,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 23:11:49,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 23:11:49,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 23:11:49,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 23:11:49,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 23:11:49,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 23:11:49,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 23:11:49,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 23:11:49,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 23:11:49,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 23:11:49,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 23:11:49,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 23:11:49,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 23:11:49,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 23:11:49,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 23:11:49,927 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 23:11:49,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 23:11:49,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 23:11:49,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 23:11:49,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 23:11:49,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 23:11:49,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 23:11:49,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 23:11:49,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 23:11:49,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 23:11:49,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 23:11:49,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 23:11:49,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 23:11:49,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 23:11:49,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 23:11:49,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 23:11:49,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 23:11:49,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 23:11:49,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 23:11:49,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 23:11:49,995 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 23:11:50,069 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 23:11:50,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 23:11:50,077 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 23:11:50,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 23:11:50,078 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 23:11:50,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 23:11:50,078 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 23:11:50,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 23:11:50,079 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 23:11:50,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 23:11:50,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 23:11:50,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 23:11:50,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 23:11:50,082 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 23:11:50,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 23:11:50,083 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 23:11:50,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 23:11:50,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 23:11:50,083 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 23:11:50,084 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 23:11:50,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 23:11:50,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:11:50,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 23:11:50,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 23:11:50,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 23:11:50,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 23:11:50,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 23:11:50,086 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 23:11:50,087 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 23:11:50,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 23:11:50,087 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 23:11:50,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 23:11:50,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 23:11:50,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 23:11:50,643 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 23:11:50,644 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 23:11:50,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi007_power.oepc.i [2021-04-28 23:11:50,751 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/137f1cd94/daa1a48d2cd040f8b7a947119d9858f3/FLAG1dd21d61e [2021-04-28 23:11:51,607 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 23:11:51,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi007_power.oepc.i [2021-04-28 23:11:51,632 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/137f1cd94/daa1a48d2cd040f8b7a947119d9858f3/FLAG1dd21d61e [2021-04-28 23:11:51,857 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/137f1cd94/daa1a48d2cd040f8b7a947119d9858f3 [2021-04-28 23:11:51,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 23:11:51,908 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 23:11:51,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 23:11:51,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 23:11:51,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 23:11:51,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:11:51" (1/1) ... [2021-04-28 23:11:51,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d2b6bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:11:51, skipping insertion in model container [2021-04-28 23:11:51,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:11:51" (1/1) ... [2021-04-28 23:11:51,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 23:11:51,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 23:11:52,180 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/rfi007_power.oepc.i[951,964] [2021-04-28 23:11:52,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:11:52,496 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 23:11:52,516 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/rfi007_power.oepc.i[951,964] [2021-04-28 23:11:52,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:11:52,849 INFO L208 MainTranslator]: Completed translation [2021-04-28 23:11:52,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:11:52 WrapperNode [2021-04-28 23:11:52,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 23:11:52,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 23:11:52,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 23:11:52,856 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 23:11:52,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:11:52" (1/1) ... [2021-04-28 23:11:52,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:11:52" (1/1) ... [2021-04-28 23:11:52,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 23:11:52,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 23:11:52,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 23:11:52,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 23:11:53,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:11:52" (1/1) ... [2021-04-28 23:11:53,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:11:52" (1/1) ... [2021-04-28 23:11:53,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:11:52" (1/1) ... [2021-04-28 23:11:53,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:11:52" (1/1) ... [2021-04-28 23:11:53,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:11:52" (1/1) ... [2021-04-28 23:11:53,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:11:52" (1/1) ... [2021-04-28 23:11:53,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:11:52" (1/1) ... [2021-04-28 23:11:53,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 23:11:53,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 23:11:53,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 23:11:53,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 23:11:53,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:11:52" (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 [2021-04-28 23:11:53,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 23:11:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 23:11:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 23:11:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 23:11:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 23:11:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 23:11:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 23:11:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 23:11:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 23:11:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 23:11:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 23:11:53,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 23:11:53,238 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 23:11:56,075 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 23:11:56,076 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 23:11:56,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:11:56 BoogieIcfgContainer [2021-04-28 23:11:56,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 23:11:56,081 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 23:11:56,081 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 23:11:56,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 23:11:56,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 11:11:51" (1/3) ... [2021-04-28 23:11:56,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8599b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:11:56, skipping insertion in model container [2021-04-28 23:11:56,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:11:52" (2/3) ... [2021-04-28 23:11:56,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8599b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:11:56, skipping insertion in model container [2021-04-28 23:11:56,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:11:56" (3/3) ... [2021-04-28 23:11:56,091 INFO L111 eAbstractionObserver]: Analyzing ICFG rfi007_power.oepc.i [2021-04-28 23:11:56,102 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 23:11:56,110 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 23:11:56,117 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 23:11:56,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,177 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,179 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,179 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,180 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,181 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,181 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,181 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,181 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,182 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,182 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,182 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,182 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,182 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,183 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,184 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,184 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,185 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,186 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,186 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,186 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,187 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,187 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,187 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,188 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,188 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,189 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,190 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,192 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,193 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,194 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,194 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,194 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,195 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,196 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,197 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,197 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,197 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,198 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,198 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,198 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,198 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,198 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,199 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,199 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,199 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,200 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,201 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,201 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,201 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,202 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,203 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,204 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,204 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,204 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,204 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,207 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,208 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,209 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,209 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,210 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,210 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,210 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,210 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,210 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,211 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,212 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,212 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,212 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,212 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,212 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,213 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,213 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,214 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,214 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,220 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,222 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,226 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,227 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,227 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,228 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,229 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,229 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,229 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,229 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,229 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,230 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,239 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,240 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,240 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,240 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,240 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,240 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,241 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,241 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,241 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,241 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,242 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,242 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,242 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,242 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,243 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,243 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,243 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,243 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,247 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,248 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,248 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,248 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,248 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,249 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,249 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,249 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,250 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,250 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,250 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,250 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,253 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,253 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,253 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,253 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,254 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,254 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,254 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,254 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,254 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,255 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,255 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,255 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,255 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,256 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,256 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,256 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,256 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,256 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,258 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,258 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,258 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,261 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,261 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,261 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,262 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,262 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,262 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,262 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,263 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,263 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,263 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,263 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,263 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:11:56,267 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 23:11:56,293 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-04-28 23:11:56,325 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 23:11:56,325 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 23:11:56,325 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 23:11:56,326 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 23:11:56,326 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 23:11:56,326 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 23:11:56,326 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 23:11:56,326 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 23:11:56,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 82 transitions, 174 flow [2021-04-28 23:11:56,383 INFO L129 PetriNetUnfolder]: 2/80 cut-off events. [2021-04-28 23:11:56,384 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:11:56,388 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2021-04-28 23:11:56,388 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 82 transitions, 174 flow [2021-04-28 23:11:56,394 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 80 transitions, 166 flow [2021-04-28 23:11:56,396 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:11:56,414 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 80 transitions, 166 flow [2021-04-28 23:11:56,418 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 80 transitions, 166 flow [2021-04-28 23:11:56,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 80 transitions, 166 flow [2021-04-28 23:11:56,443 INFO L129 PetriNetUnfolder]: 2/80 cut-off events. [2021-04-28 23:11:56,444 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:11:56,444 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2021-04-28 23:11:56,451 INFO L146 LiptonReduction]: Number of co-enabled transitions 992 [2021-04-28 23:11:57,085 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:11:59,544 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 23:11:59,660 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 23:12:00,215 WARN L205 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 86 [2021-04-28 23:12:00,482 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 23:12:04,580 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:12:04,751 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:12:04,937 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:12:05,123 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:12:05,294 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:12:05,461 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:12:05,623 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:12:05,782 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:12:05,990 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:12:06,117 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 23:12:06,254 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:12:07,260 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:12:07,459 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:12:07,621 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:12:07,778 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:12:07,944 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:12:08,115 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:12:08,322 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:12:08,559 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:12:11,325 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:12:11,560 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:12:11,766 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:12:11,970 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:12:12,132 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:12:12,481 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:12:12,723 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:12:12,976 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:12:13,274 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-28 23:12:13,486 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:12:13,678 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:12:13,953 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 23:12:14,126 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 23:12:14,290 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 23:12:14,460 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 23:12:14,613 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 23:12:14,765 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 23:12:14,917 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 23:12:15,063 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 23:12:15,166 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 23:12:15,271 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 23:12:15,375 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 23:12:15,477 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 23:12:15,580 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 23:12:16,031 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 23:12:16,162 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 23:12:16,296 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 23:12:16,421 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 23:12:16,589 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 23:12:16,752 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 23:12:16,904 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 23:12:17,062 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 23:12:17,213 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 23:12:17,378 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 23:12:17,538 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 23:12:17,693 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 23:12:18,517 WARN L205 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2021-04-28 23:12:18,714 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-28 23:12:19,105 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2021-04-28 23:12:19,295 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-28 23:12:19,711 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 23:12:19,819 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 23:12:19,925 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 23:12:20,029 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 23:12:20,166 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 23:12:20,294 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 23:12:20,428 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 23:12:20,565 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 23:12:21,019 WARN L205 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2021-04-28 23:12:21,215 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 23:12:21,650 WARN L205 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2021-04-28 23:12:21,854 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 23:12:21,960 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 23:12:22,067 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 23:12:22,176 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 23:12:22,280 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 23:12:22,405 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 23:12:22,524 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 23:12:22,639 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 23:12:22,765 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 23:12:22,906 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 23:12:23,046 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 23:12:23,191 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 23:12:23,337 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 23:12:23,452 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 23:12:23,607 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 23:12:23,737 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 23:12:23,871 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 23:12:24,429 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 23:12:24,589 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 23:12:24,745 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 23:12:24,908 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 23:12:25,328 INFO L158 LiptonReduction]: Checked pairs total: 8910 [2021-04-28 23:12:25,329 INFO L160 LiptonReduction]: Total number of compositions: 190 [2021-04-28 23:12:25,333 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28939 [2021-04-28 23:12:25,352 INFO L129 PetriNetUnfolder]: 0/50 cut-off events. [2021-04-28 23:12:25,353 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:12:25,353 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:12:25,354 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-04-28 23:12:25,354 INFO L428 AbstractCegarLoop]: === Iteration 1 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:12:25,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:12:25,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1026815, now seen corresponding path program 1 times [2021-04-28 23:12:25,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:12:25,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424212127] [2021-04-28 23:12:25,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:12:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:12:25,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:12:25,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:12:25,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:12:25,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424212127] [2021-04-28 23:12:25,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:12:25,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:12:25,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214423306] [2021-04-28 23:12:25,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:12:25,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:12:25,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:12:25,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:12:25,634 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 272 [2021-04-28 23:12:25,639 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 100 transitions, 206 flow. Second operand has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:25,639 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:12:25,639 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 272 [2021-04-28 23:12:25,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:12:25,749 INFO L129 PetriNetUnfolder]: 16/229 cut-off events. [2021-04-28 23:12:25,750 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:12:25,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 229 events. 16/229 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 1602 event pairs, 11 based on Foata normal form. 18/73 useless extension candidates. Maximal degree in co-relation 219. Up to 27 conditions per place. [2021-04-28 23:12:25,755 INFO L132 encePairwiseOnDemand]: 257/272 looper letters, 7 selfloop transitions, 2 changer transitions 45/99 dead transitions. [2021-04-28 23:12:25,756 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 99 transitions, 240 flow [2021-04-28 23:12:25,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:12:25,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:12:25,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 685 transitions. [2021-04-28 23:12:25,775 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8394607843137255 [2021-04-28 23:12:25,776 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 685 transitions. [2021-04-28 23:12:25,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 685 transitions. [2021-04-28 23:12:25,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:12:25,783 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 685 transitions. [2021-04-28 23:12:25,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 228.33333333333334) internal successors, (685), 3 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:25,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 272.0) internal successors, (1088), 4 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:25,801 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 272.0) internal successors, (1088), 4 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:25,803 INFO L185 Difference]: Start difference. First operand has 106 places, 100 transitions, 206 flow. Second operand 3 states and 685 transitions. [2021-04-28 23:12:25,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 99 transitions, 240 flow [2021-04-28 23:12:25,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 99 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:12:25,810 INFO L241 Difference]: Finished difference. Result has 103 places, 51 transitions, 110 flow [2021-04-28 23:12:25,813 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=103, PETRI_TRANSITIONS=51} [2021-04-28 23:12:25,814 INFO L343 CegarLoopForPetriNet]: 106 programPoint places, -3 predicate places. [2021-04-28 23:12:25,814 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:12:25,814 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 51 transitions, 110 flow [2021-04-28 23:12:25,814 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 51 transitions, 110 flow [2021-04-28 23:12:25,815 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 51 transitions, 110 flow [2021-04-28 23:12:25,823 INFO L129 PetriNetUnfolder]: 0/51 cut-off events. [2021-04-28 23:12:25,823 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:12:25,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 51 events. 0/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 236 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 23:12:25,825 INFO L146 LiptonReduction]: Number of co-enabled transitions 1100 [2021-04-28 23:12:25,979 INFO L158 LiptonReduction]: Checked pairs total: 1464 [2021-04-28 23:12:25,979 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:12:25,980 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 166 [2021-04-28 23:12:25,981 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 51 transitions, 110 flow [2021-04-28 23:12:25,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:25,983 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:12:25,983 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:12:25,983 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 23:12:25,983 INFO L428 AbstractCegarLoop]: === Iteration 2 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:12:25,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:12:25,984 INFO L82 PathProgramCache]: Analyzing trace with hash -846541316, now seen corresponding path program 1 times [2021-04-28 23:12:25,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:12:25,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615405677] [2021-04-28 23:12:25,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:12:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:12:26,147 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:12:26,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:12:26,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:12:26,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615405677] [2021-04-28 23:12:26,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:12:26,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:12:26,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741654391] [2021-04-28 23:12:26,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:12:26,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:12:26,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:12:26,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:12:26,160 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 272 [2021-04-28 23:12:26,161 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 51 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 160.66666666666666) internal successors, (482), 3 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:26,162 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:12:26,162 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 272 [2021-04-28 23:12:26,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:12:26,417 INFO L129 PetriNetUnfolder]: 252/1045 cut-off events. [2021-04-28 23:12:26,417 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:12:26,420 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1566 conditions, 1045 events. 252/1045 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 10872 event pairs, 94 based on Foata normal form. 0/571 useless extension candidates. Maximal degree in co-relation 1557. Up to 265 conditions per place. [2021-04-28 23:12:26,422 INFO L132 encePairwiseOnDemand]: 256/272 looper letters, 4 selfloop transitions, 5 changer transitions 39/72 dead transitions. [2021-04-28 23:12:26,423 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 72 transitions, 246 flow [2021-04-28 23:12:26,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:12:26,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:12:26,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2021-04-28 23:12:26,426 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6446078431372549 [2021-04-28 23:12:26,426 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 526 transitions. [2021-04-28 23:12:26,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 526 transitions. [2021-04-28 23:12:26,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:12:26,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 526 transitions. [2021-04-28 23:12:26,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 175.33333333333334) internal successors, (526), 3 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:26,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 272.0) internal successors, (1088), 4 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:26,434 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 272.0) internal successors, (1088), 4 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:26,434 INFO L185 Difference]: Start difference. First operand has 58 places, 51 transitions, 110 flow. Second operand 3 states and 526 transitions. [2021-04-28 23:12:26,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 72 transitions, 246 flow [2021-04-28 23:12:26,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 72 transitions, 242 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:12:26,437 INFO L241 Difference]: Finished difference. Result has 60 places, 33 transitions, 98 flow [2021-04-28 23:12:26,437 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=60, PETRI_TRANSITIONS=33} [2021-04-28 23:12:26,438 INFO L343 CegarLoopForPetriNet]: 106 programPoint places, -46 predicate places. [2021-04-28 23:12:26,438 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:12:26,438 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 33 transitions, 98 flow [2021-04-28 23:12:26,438 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 33 transitions, 98 flow [2021-04-28 23:12:26,439 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 33 transitions, 98 flow [2021-04-28 23:12:26,452 INFO L129 PetriNetUnfolder]: 8/88 cut-off events. [2021-04-28 23:12:26,453 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-04-28 23:12:26,453 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 88 events. 8/88 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 424 event pairs, 4 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 127. Up to 21 conditions per place. [2021-04-28 23:12:26,455 INFO L146 LiptonReduction]: Number of co-enabled transitions 530 [2021-04-28 23:12:26,672 INFO L158 LiptonReduction]: Checked pairs total: 345 [2021-04-28 23:12:26,672 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:12:26,673 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 235 [2021-04-28 23:12:26,674 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 33 transitions, 98 flow [2021-04-28 23:12:26,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 160.66666666666666) internal successors, (482), 3 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:26,675 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:12:26,675 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:12:26,676 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 23:12:26,676 INFO L428 AbstractCegarLoop]: === Iteration 3 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:12:26,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:12:26,676 INFO L82 PathProgramCache]: Analyzing trace with hash -474569765, now seen corresponding path program 1 times [2021-04-28 23:12:26,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:12:26,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326395970] [2021-04-28 23:12:26,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:12:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:12:26,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:12:26,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-04-28 23:12:26,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:12:26,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 23:12:26,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:12:26,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:12:26,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:12:26,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326395970] [2021-04-28 23:12:26,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:12:26,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:12:26,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965944044] [2021-04-28 23:12:26,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:12:26,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:12:26,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:12:26,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:12:26,832 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 272 [2021-04-28 23:12:26,833 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 98 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) [2021-04-28 23:12:26,833 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:12:26,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 272 [2021-04-28 23:12:26,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:12:27,093 INFO L129 PetriNetUnfolder]: 868/1582 cut-off events. [2021-04-28 23:12:27,093 INFO L130 PetriNetUnfolder]: For 482/486 co-relation queries the response was YES. [2021-04-28 23:12:27,096 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3572 conditions, 1582 events. 868/1582 cut-off events. For 482/486 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 10634 event pairs, 71 based on Foata normal form. 5/724 useless extension candidates. Maximal degree in co-relation 3561. Up to 778 conditions per place. [2021-04-28 23:12:27,101 INFO L132 encePairwiseOnDemand]: 262/272 looper letters, 21 selfloop transitions, 11 changer transitions 20/62 dead transitions. [2021-04-28 23:12:27,101 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 62 transitions, 276 flow [2021-04-28 23:12:27,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:12:27,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:12:27,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 613 transitions. [2021-04-28 23:12:27,104 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5634191176470589 [2021-04-28 23:12:27,104 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 613 transitions. [2021-04-28 23:12:27,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 613 transitions. [2021-04-28 23:12:27,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:12:27,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 613 transitions. [2021-04-28 23:12:27,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 153.25) internal successors, (613), 4 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:27,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 272.0) internal successors, (1360), 5 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:27,111 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 272.0) internal successors, (1360), 5 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:27,111 INFO L185 Difference]: Start difference. First operand has 39 places, 33 transitions, 98 flow. Second operand 4 states and 613 transitions. [2021-04-28 23:12:27,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 62 transitions, 276 flow [2021-04-28 23:12:27,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 62 transitions, 260 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:12:27,116 INFO L241 Difference]: Finished difference. Result has 43 places, 34 transitions, 160 flow [2021-04-28 23:12:27,117 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=43, PETRI_TRANSITIONS=34} [2021-04-28 23:12:27,117 INFO L343 CegarLoopForPetriNet]: 106 programPoint places, -63 predicate places. [2021-04-28 23:12:27,117 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:12:27,117 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 34 transitions, 160 flow [2021-04-28 23:12:27,118 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 34 transitions, 160 flow [2021-04-28 23:12:27,120 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 34 transitions, 160 flow [2021-04-28 23:12:27,140 INFO L129 PetriNetUnfolder]: 26/137 cut-off events. [2021-04-28 23:12:27,141 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2021-04-28 23:12:27,141 INFO L84 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 137 events. 26/137 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 757 event pairs, 5 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 304. Up to 49 conditions per place. [2021-04-28 23:12:27,143 INFO L146 LiptonReduction]: Number of co-enabled transitions 332 [2021-04-28 23:12:27,325 INFO L158 LiptonReduction]: Checked pairs total: 285 [2021-04-28 23:12:27,325 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:12:27,326 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 209 [2021-04-28 23:12:27,327 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 34 transitions, 160 flow [2021-04-28 23:12:27,328 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) [2021-04-28 23:12:27,328 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:12:27,328 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:12:27,328 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 23:12:27,328 INFO L428 AbstractCegarLoop]: === Iteration 4 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:12:27,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:12:27,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1826763489, now seen corresponding path program 1 times [2021-04-28 23:12:27,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:12:27,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135195449] [2021-04-28 23:12:27,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:12:27,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:12:27,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:12:27,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:12:27,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:12:27,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 23:12:27,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:12:27,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:12:27,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:12:27,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135195449] [2021-04-28 23:12:27,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:12:27,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:12:27,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37248367] [2021-04-28 23:12:27,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:12:27,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:12:27,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:12:27,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:12:27,462 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 272 [2021-04-28 23:12:27,464 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 34 transitions, 160 flow. Second operand has 4 states, 4 states have (on average 183.75) internal successors, (735), 4 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:27,464 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:12:27,464 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 272 [2021-04-28 23:12:27,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:12:27,563 INFO L129 PetriNetUnfolder]: 152/393 cut-off events. [2021-04-28 23:12:27,564 INFO L130 PetriNetUnfolder]: For 197/201 co-relation queries the response was YES. [2021-04-28 23:12:27,565 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1035 conditions, 393 events. 152/393 cut-off events. For 197/201 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 2669 event pairs, 48 based on Foata normal form. 43/279 useless extension candidates. Maximal degree in co-relation 1021. Up to 238 conditions per place. [2021-04-28 23:12:27,567 INFO L132 encePairwiseOnDemand]: 263/272 looper letters, 8 selfloop transitions, 14 changer transitions 12/56 dead transitions. [2021-04-28 23:12:27,567 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 56 transitions, 302 flow [2021-04-28 23:12:27,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:12:27,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:12:27,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 945 transitions. [2021-04-28 23:12:27,571 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6948529411764706 [2021-04-28 23:12:27,572 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 945 transitions. [2021-04-28 23:12:27,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 945 transitions. [2021-04-28 23:12:27,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:12:27,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 945 transitions. [2021-04-28 23:12:27,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:27,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 272.0) internal successors, (1632), 6 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:27,580 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 272.0) internal successors, (1632), 6 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:27,581 INFO L185 Difference]: Start difference. First operand has 36 places, 34 transitions, 160 flow. Second operand 5 states and 945 transitions. [2021-04-28 23:12:27,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 56 transitions, 302 flow [2021-04-28 23:12:27,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 56 transitions, 302 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 23:12:27,586 INFO L241 Difference]: Finished difference. Result has 43 places, 44 transitions, 262 flow [2021-04-28 23:12:27,586 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=262, PETRI_PLACES=43, PETRI_TRANSITIONS=44} [2021-04-28 23:12:27,587 INFO L343 CegarLoopForPetriNet]: 106 programPoint places, -63 predicate places. [2021-04-28 23:12:27,587 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:12:27,587 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 44 transitions, 262 flow [2021-04-28 23:12:27,587 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 44 transitions, 262 flow [2021-04-28 23:12:27,588 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 44 transitions, 262 flow [2021-04-28 23:12:27,634 INFO L129 PetriNetUnfolder]: 103/325 cut-off events. [2021-04-28 23:12:27,634 INFO L130 PetriNetUnfolder]: For 224/230 co-relation queries the response was YES. [2021-04-28 23:12:27,635 INFO L84 FinitePrefix]: Finished finitePrefix Result has 983 conditions, 325 events. 103/325 cut-off events. For 224/230 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 2306 event pairs, 42 based on Foata normal form. 1/205 useless extension candidates. Maximal degree in co-relation 966. Up to 160 conditions per place. [2021-04-28 23:12:27,638 INFO L146 LiptonReduction]: Number of co-enabled transitions 336 [2021-04-28 23:12:27,648 INFO L158 LiptonReduction]: Checked pairs total: 345 [2021-04-28 23:12:27,650 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:12:27,650 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 63 [2021-04-28 23:12:27,661 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 44 transitions, 262 flow [2021-04-28 23:12:27,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 183.75) internal successors, (735), 4 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:27,662 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:12:27,662 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:12:27,662 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 23:12:27,662 INFO L428 AbstractCegarLoop]: === Iteration 5 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:12:27,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:12:27,664 INFO L82 PathProgramCache]: Analyzing trace with hash -525658497, now seen corresponding path program 1 times [2021-04-28 23:12:27,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:12:27,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120729812] [2021-04-28 23:12:27,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:12:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:12:27,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:12:27,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:12:27,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:12:27,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120729812] [2021-04-28 23:12:27,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:12:27,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:12:27,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304105927] [2021-04-28 23:12:27,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:12:27,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:12:27,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:12:27,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:12:27,800 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 272 [2021-04-28 23:12:27,802 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 44 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:27,802 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:12:27,802 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 272 [2021-04-28 23:12:27,807 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:12:27,857 INFO L129 PetriNetUnfolder]: 86/306 cut-off events. [2021-04-28 23:12:27,857 INFO L130 PetriNetUnfolder]: For 311/325 co-relation queries the response was YES. [2021-04-28 23:12:27,858 INFO L84 FinitePrefix]: Finished finitePrefix Result has 951 conditions, 306 events. 86/306 cut-off events. For 311/325 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 2205 event pairs, 48 based on Foata normal form. 8/203 useless extension candidates. Maximal degree in co-relation 932. Up to 146 conditions per place. [2021-04-28 23:12:27,860 INFO L132 encePairwiseOnDemand]: 269/272 looper letters, 1 selfloop transitions, 6 changer transitions 0/44 dead transitions. [2021-04-28 23:12:27,860 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 44 transitions, 276 flow [2021-04-28 23:12:27,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:12:27,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:12:27,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 559 transitions. [2021-04-28 23:12:27,863 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6850490196078431 [2021-04-28 23:12:27,863 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 559 transitions. [2021-04-28 23:12:27,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 559 transitions. [2021-04-28 23:12:27,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:12:27,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 559 transitions. [2021-04-28 23:12:27,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:27,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 272.0) internal successors, (1088), 4 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:27,869 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 272.0) internal successors, (1088), 4 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:27,870 INFO L185 Difference]: Start difference. First operand has 43 places, 44 transitions, 262 flow. Second operand 3 states and 559 transitions. [2021-04-28 23:12:27,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 44 transitions, 276 flow [2021-04-28 23:12:27,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 44 transitions, 276 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 23:12:27,874 INFO L241 Difference]: Finished difference. Result has 46 places, 44 transitions, 282 flow [2021-04-28 23:12:27,875 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=46, PETRI_TRANSITIONS=44} [2021-04-28 23:12:27,875 INFO L343 CegarLoopForPetriNet]: 106 programPoint places, -60 predicate places. [2021-04-28 23:12:27,875 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:12:27,875 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 44 transitions, 282 flow [2021-04-28 23:12:27,876 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 44 transitions, 282 flow [2021-04-28 23:12:27,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 44 transitions, 282 flow [2021-04-28 23:12:27,929 INFO L129 PetriNetUnfolder]: 114/334 cut-off events. [2021-04-28 23:12:27,930 INFO L130 PetriNetUnfolder]: For 317/325 co-relation queries the response was YES. [2021-04-28 23:12:27,931 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1056 conditions, 334 events. 114/334 cut-off events. For 317/325 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 2276 event pairs, 46 based on Foata normal form. 1/203 useless extension candidates. Maximal degree in co-relation 1036. Up to 171 conditions per place. [2021-04-28 23:12:27,934 INFO L146 LiptonReduction]: Number of co-enabled transitions 336 [2021-04-28 23:12:27,942 INFO L158 LiptonReduction]: Checked pairs total: 345 [2021-04-28 23:12:27,942 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:12:27,942 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 67 [2021-04-28 23:12:27,943 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 44 transitions, 282 flow [2021-04-28 23:12:27,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:27,944 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:12:27,944 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:12:27,944 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 23:12:27,944 INFO L428 AbstractCegarLoop]: === Iteration 6 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:12:27,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:12:27,945 INFO L82 PathProgramCache]: Analyzing trace with hash -827886045, now seen corresponding path program 1 times [2021-04-28 23:12:27,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:12:27,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850889772] [2021-04-28 23:12:27,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:12:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:12:28,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:12:28,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:12:28,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:12:28,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:12:28,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:12:28,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 23:12:28,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:12:28,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:12:28,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:12:28,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850889772] [2021-04-28 23:12:28,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:12:28,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:12:28,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917534547] [2021-04-28 23:12:28,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:12:28,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:12:28,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:12:28,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:12:28,068 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 272 [2021-04-28 23:12:28,070 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 44 transitions, 282 flow. Second operand has 5 states, 5 states have (on average 183.8) internal successors, (919), 5 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:28,071 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:12:28,071 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 272 [2021-04-28 23:12:28,071 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:12:28,191 INFO L129 PetriNetUnfolder]: 47/234 cut-off events. [2021-04-28 23:12:28,191 INFO L130 PetriNetUnfolder]: For 304/342 co-relation queries the response was YES. [2021-04-28 23:12:28,192 INFO L84 FinitePrefix]: Finished finitePrefix Result has 919 conditions, 234 events. 47/234 cut-off events. For 304/342 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 1679 event pairs, 0 based on Foata normal form. 57/204 useless extension candidates. Maximal degree in co-relation 897. Up to 119 conditions per place. [2021-04-28 23:12:28,193 INFO L132 encePairwiseOnDemand]: 263/272 looper letters, 2 selfloop transitions, 21 changer transitions 7/51 dead transitions. [2021-04-28 23:12:28,193 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 51 transitions, 380 flow [2021-04-28 23:12:28,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 23:12:28,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 23:12:28,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1309 transitions. [2021-04-28 23:12:28,199 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6875 [2021-04-28 23:12:28,199 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1309 transitions. [2021-04-28 23:12:28,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1309 transitions. [2021-04-28 23:12:28,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:12:28,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1309 transitions. [2021-04-28 23:12:28,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 187.0) internal successors, (1309), 7 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:28,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 272.0) internal successors, (2176), 8 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:28,209 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 272.0) internal successors, (2176), 8 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:28,209 INFO L185 Difference]: Start difference. First operand has 46 places, 44 transitions, 282 flow. Second operand 7 states and 1309 transitions. [2021-04-28 23:12:28,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 51 transitions, 380 flow [2021-04-28 23:12:28,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 51 transitions, 358 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-04-28 23:12:28,214 INFO L241 Difference]: Finished difference. Result has 52 places, 44 transitions, 330 flow [2021-04-28 23:12:28,214 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=330, PETRI_PLACES=52, PETRI_TRANSITIONS=44} [2021-04-28 23:12:28,214 INFO L343 CegarLoopForPetriNet]: 106 programPoint places, -54 predicate places. [2021-04-28 23:12:28,214 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:12:28,214 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 44 transitions, 330 flow [2021-04-28 23:12:28,215 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 44 transitions, 330 flow [2021-04-28 23:12:28,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 44 transitions, 330 flow [2021-04-28 23:12:28,246 INFO L129 PetriNetUnfolder]: 38/188 cut-off events. [2021-04-28 23:12:28,246 INFO L130 PetriNetUnfolder]: For 304/316 co-relation queries the response was YES. [2021-04-28 23:12:28,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 780 conditions, 188 events. 38/188 cut-off events. For 304/316 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1189 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 758. Up to 92 conditions per place. [2021-04-28 23:12:28,249 INFO L146 LiptonReduction]: Number of co-enabled transitions 262 [2021-04-28 23:12:28,254 INFO L158 LiptonReduction]: Checked pairs total: 297 [2021-04-28 23:12:28,255 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:12:28,255 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-04-28 23:12:28,256 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 330 flow [2021-04-28 23:12:28,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 183.8) internal successors, (919), 5 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:28,257 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:12:28,257 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:12:28,257 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 23:12:28,257 INFO L428 AbstractCegarLoop]: === Iteration 7 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:12:28,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:12:28,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1445919846, now seen corresponding path program 1 times [2021-04-28 23:12:28,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:12:28,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759889843] [2021-04-28 23:12:28,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:12:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:12:28,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:12:28,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:12:28,355 INFO L142 QuantifierPusher]: treesize reduction 4, result has 85.2 percent of original size [2021-04-28 23:12:28,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-04-28 23:12:28,375 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.6 percent of original size [2021-04-28 23:12:28,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-04-28 23:12:28,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:12:28,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:12:28,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:12:28,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759889843] [2021-04-28 23:12:28,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:12:28,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:12:28,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945427196] [2021-04-28 23:12:28,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:12:28,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:12:28,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:12:28,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:12:28,408 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 272 [2021-04-28 23:12:28,409 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 330 flow. Second operand has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:28,409 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:12:28,409 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 272 [2021-04-28 23:12:28,409 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:12:28,652 INFO L129 PetriNetUnfolder]: 68/338 cut-off events. [2021-04-28 23:12:28,652 INFO L130 PetriNetUnfolder]: For 1104/1183 co-relation queries the response was YES. [2021-04-28 23:12:28,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1488 conditions, 338 events. 68/338 cut-off events. For 1104/1183 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 2471 event pairs, 1 based on Foata normal form. 49/285 useless extension candidates. Maximal degree in co-relation 1464. Up to 161 conditions per place. [2021-04-28 23:12:28,655 INFO L132 encePairwiseOnDemand]: 262/272 looper letters, 7 selfloop transitions, 10 changer transitions 23/63 dead transitions. [2021-04-28 23:12:28,655 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 63 transitions, 500 flow [2021-04-28 23:12:28,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 23:12:28,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 23:12:28,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 922 transitions. [2021-04-28 23:12:28,661 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4842436974789916 [2021-04-28 23:12:28,661 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 922 transitions. [2021-04-28 23:12:28,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 922 transitions. [2021-04-28 23:12:28,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:12:28,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 922 transitions. [2021-04-28 23:12:28,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 131.71428571428572) internal successors, (922), 7 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:28,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 272.0) internal successors, (2176), 8 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:28,671 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 272.0) internal successors, (2176), 8 states have internal predecessors, (2176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:28,671 INFO L185 Difference]: Start difference. First operand has 50 places, 44 transitions, 330 flow. Second operand 7 states and 922 transitions. [2021-04-28 23:12:28,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 63 transitions, 500 flow [2021-04-28 23:12:28,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 63 transitions, 427 flow, removed 19 selfloop flow, removed 6 redundant places. [2021-04-28 23:12:28,684 INFO L241 Difference]: Finished difference. Result has 54 places, 39 transitions, 262 flow [2021-04-28 23:12:28,684 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=272, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=262, PETRI_PLACES=54, PETRI_TRANSITIONS=39} [2021-04-28 23:12:28,684 INFO L343 CegarLoopForPetriNet]: 106 programPoint places, -52 predicate places. [2021-04-28 23:12:28,685 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:12:28,685 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 39 transitions, 262 flow [2021-04-28 23:12:28,685 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 39 transitions, 262 flow [2021-04-28 23:12:28,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 39 transitions, 262 flow [2021-04-28 23:12:28,702 INFO L129 PetriNetUnfolder]: 13/98 cut-off events. [2021-04-28 23:12:28,703 INFO L130 PetriNetUnfolder]: For 124/127 co-relation queries the response was YES. [2021-04-28 23:12:28,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 98 events. 13/98 cut-off events. For 124/127 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 437 event pairs, 1 based on Foata normal form. 3/76 useless extension candidates. Maximal degree in co-relation 313. Up to 40 conditions per place. [2021-04-28 23:12:28,704 INFO L146 LiptonReduction]: Number of co-enabled transitions 158 [2021-04-28 23:12:28,708 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:12:28,708 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:12:28,708 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-04-28 23:12:28,710 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 39 transitions, 262 flow [2021-04-28 23:12:28,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:12:28,710 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:12:28,710 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:12:28,711 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 23:12:28,711 INFO L428 AbstractCegarLoop]: === Iteration 8 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:12:28,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:12:28,711 INFO L82 PathProgramCache]: Analyzing trace with hash -921620989, now seen corresponding path program 1 times [2021-04-28 23:12:28,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:12:28,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735747588] [2021-04-28 23:12:28,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:12:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 23:12:28,760 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 23:12:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-28 23:12:28,816 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-28 23:12:28,853 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-28 23:12:28,853 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-28 23:12:28,853 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 23:12:28,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 11:12:28 BasicIcfg [2021-04-28 23:12:28,933 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 23:12:28,934 INFO L168 Benchmark]: Toolchain (without parser) took 37069.22 ms. Allocated memory was 302.0 MB in the beginning and 721.4 MB in the end (delta: 419.4 MB). Free memory was 275.6 MB in the beginning and 293.5 MB in the end (delta: -17.9 MB). Peak memory consumption was 404.0 MB. Max. memory is 16.0 GB. [2021-04-28 23:12:28,935 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 302.0 MB. Free memory is still 270.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:12:28,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 940.27 ms. Allocated memory is still 302.0 MB. Free memory was 272.3 MB in the beginning and 268.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.0 GB. [2021-04-28 23:12:28,936 INFO L168 Benchmark]: Boogie Procedure Inliner took 138.89 ms. Allocated memory is still 302.0 MB. Free memory was 268.5 MB in the beginning and 266.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:12:28,936 INFO L168 Benchmark]: Boogie Preprocessor took 85.56 ms. Allocated memory is still 302.0 MB. Free memory was 265.4 MB in the beginning and 263.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:12:28,936 INFO L168 Benchmark]: RCFGBuilder took 2992.46 ms. Allocated memory was 302.0 MB in the beginning and 381.7 MB in the end (delta: 79.7 MB). Free memory was 263.3 MB in the beginning and 308.9 MB in the end (delta: -45.6 MB). Peak memory consumption was 162.0 MB. Max. memory is 16.0 GB. [2021-04-28 23:12:28,937 INFO L168 Benchmark]: TraceAbstraction took 32852.53 ms. Allocated memory was 381.7 MB in the beginning and 721.4 MB in the end (delta: 339.7 MB). Free memory was 307.8 MB in the beginning and 293.5 MB in the end (delta: 14.3 MB). Peak memory consumption was 355.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:12:28,939 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 302.0 MB. Free memory is still 270.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 940.27 ms. Allocated memory is still 302.0 MB. Free memory was 272.3 MB in the beginning and 268.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 138.89 ms. Allocated memory is still 302.0 MB. Free memory was 268.5 MB in the beginning and 266.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 85.56 ms. Allocated memory is still 302.0 MB. Free memory was 265.4 MB in the beginning and 263.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 2992.46 ms. Allocated memory was 302.0 MB in the beginning and 381.7 MB in the end (delta: 79.7 MB). Free memory was 263.3 MB in the beginning and 308.9 MB in the end (delta: -45.6 MB). Peak memory consumption was 162.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 32852.53 ms. Allocated memory was 381.7 MB in the beginning and 721.4 MB in the end (delta: 339.7 MB). Free memory was 307.8 MB in the beginning and 293.5 MB in the end (delta: 14.3 MB). Peak memory consumption was 355.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28910.5ms, 85 PlacesBefore, 106 PlacesAfterwards, 80 TransitionsBefore, 100 TransitionsAfterwards, 992 CoEnabledTransitionPairs, 8 FixpointIterations, 113 TrivialSequentialCompositions, 75 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 190 TotalNumberOfCompositions, 8910 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2608, positive: 2406, positive conditional: 2406, positive unconditional: 0, negative: 202, negative conditional: 202, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1241, positive: 1183, positive conditional: 0, positive unconditional: 1183, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1241, positive: 1183, positive conditional: 0, positive unconditional: 1183, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1241, positive: 1169, positive conditional: 0, positive unconditional: 1169, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 72, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1113, positive: 73, positive conditional: 0, positive unconditional: 73, negative: 1041, negative conditional: 0, negative unconditional: 1041, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2608, positive: 1223, positive conditional: 1223, positive unconditional: 0, negative: 144, negative conditional: 144, negative unconditional: 0, unknown: 1241, unknown conditional: 1241, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1229, Positive cache size: 1175, Positive conditional cache size: 1175, Positive unconditional cache size: 0, Negative cache size: 54, Negative conditional cache size: 54, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 164.9ms, 103 PlacesBefore, 58 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 1100 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 1464 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 323, positive: 259, positive conditional: 259, positive unconditional: 0, negative: 64, negative conditional: 64, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 45, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 17, negative conditional: 2, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 45, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 17, negative conditional: 2, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 45, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 17, negative conditional: 2, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 144, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 101, negative conditional: 34, negative unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 323, positive: 231, positive conditional: 231, positive unconditional: 0, negative: 47, negative conditional: 47, negative unconditional: 0, unknown: 45, unknown conditional: 45, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1274, Positive cache size: 1203, Positive conditional cache size: 1203, Positive unconditional cache size: 0, Negative cache size: 71, Negative conditional cache size: 71, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 234.2ms, 60 PlacesBefore, 39 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 530 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 345 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 60, positive: 43, positive conditional: 43, positive unconditional: 0, negative: 17, negative conditional: 17, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 13, positive conditional: 4, positive unconditional: 9, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18, positive: 13, positive conditional: 4, positive unconditional: 9, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 213, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 213, negative conditional: 0, negative unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 60, positive: 30, positive conditional: 30, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 18, unknown conditional: 18, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1292, Positive cache size: 1216, Positive conditional cache size: 1216, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 207.9ms, 43 PlacesBefore, 36 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 332 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 285 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 58, positive: 40, positive conditional: 40, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 20, positive: 16, positive conditional: 5, positive unconditional: 11, negative: 4, negative conditional: 3, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 20, positive: 16, positive conditional: 5, positive unconditional: 11, negative: 4, negative conditional: 3, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 20, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 4, negative conditional: 3, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 178, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 156, negative conditional: 119, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 58, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 20, unknown conditional: 20, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1312, Positive cache size: 1232, Positive conditional cache size: 1232, Positive unconditional cache size: 0, Negative cache size: 80, Negative conditional cache size: 80, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 62.4ms, 43 PlacesBefore, 43 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 336 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 345 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 36, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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: 36, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1314, Positive cache size: 1234, Positive conditional cache size: 1234, Positive unconditional cache size: 0, Negative cache size: 80, Negative conditional cache size: 80, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 66.0ms, 46 PlacesBefore, 46 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 336 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 345 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 30, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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: 30, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1314, Positive cache size: 1234, Positive conditional cache size: 1234, Positive unconditional cache size: 0, Negative cache size: 80, Negative conditional cache size: 80, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.9ms, 52 PlacesBefore, 50 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 262 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 297 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 42, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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: 42, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1317, Positive cache size: 1237, Positive conditional cache size: 1237, Positive unconditional cache size: 0, Negative cache size: 80, Negative conditional cache size: 80, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.2ms, 54 PlacesBefore, 52 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 158 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1317, Positive cache size: 1237, Positive conditional cache size: 1237, Positive unconditional cache size: 0, Negative cache size: 80, Negative conditional cache size: 80, Negative unconditional cache size: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L717] 0 _Bool x$flush_delayed; [L718] 0 int x$mem_tmp; [L719] 0 _Bool x$r_buff0_thd0; [L720] 0 _Bool x$r_buff0_thd1; [L721] 0 _Bool x$r_buff0_thd2; [L722] 0 _Bool x$r_buff1_thd0; [L723] 0 _Bool x$r_buff1_thd1; [L724] 0 _Bool x$r_buff1_thd2; [L725] 0 _Bool x$read_delayed; [L726] 0 int *x$read_delayed_var; [L727] 0 int x$w_buff0; [L728] 0 _Bool x$w_buff0_used; [L729] 0 int x$w_buff1; [L730] 0 _Bool x$w_buff1_used; [L732] 0 int y = 0; [L733] 0 _Bool weak$$choice0; [L734] 0 _Bool weak$$choice2; [L810] 0 pthread_t t1705; [L811] FCALL, FORK 0 pthread_create(&t1705, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=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_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=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] [L738] 1 x$w_buff1 = x$w_buff0 [L739] 1 x$w_buff0 = 1 [L740] 1 x$w_buff1_used = x$w_buff0_used [L741] 1 x$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L743] 1 x$r_buff1_thd0 = x$r_buff0_thd0 [L744] 1 x$r_buff1_thd1 = x$r_buff0_thd1 [L745] 1 x$r_buff1_thd2 = x$r_buff0_thd2 [L746] 1 x$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$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=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=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=0] [L749] 1 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=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=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=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] [L812] 0 pthread_t t1706; [L813] FCALL, FORK 0 pthread_create(&t1706, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_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=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=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] [L766] 2 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_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=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=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=2] [L769] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_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=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=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=2] [L772] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L773] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L774] 2 x$flush_delayed = weak$$choice2 [L775] 2 x$mem_tmp = x [L776] EXPR 2 !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff1) [L776] 2 x = !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff1) [L777] EXPR 2 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff0)) [L777] EXPR 2 !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff0) [L777] EXPR 2 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff0)) [L777] 2 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff0)) [L778] EXPR 2 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff1 : x$w_buff1)) [L778] EXPR 2 !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff1 : x$w_buff1) [L778] EXPR 2 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff1 : x$w_buff1)) [L778] 2 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff1 : x$w_buff1)) [L779] EXPR 2 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used)) [L779] EXPR 2 !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used) [L779] EXPR 2 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used)) [L779] 2 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used)) [L780] EXPR 2 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L780] EXPR 2 !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L780] EXPR 2 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L780] 2 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L781] EXPR 2 weak$$choice2 ? x$r_buff0_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff0_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2)) [L781] EXPR 2 !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff0_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2) [L781] EXPR 2 weak$$choice2 ? x$r_buff0_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff0_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2)) [L781] 2 x$r_buff0_thd2 = weak$$choice2 ? x$r_buff0_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff0_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2)) [L782] EXPR 2 weak$$choice2 ? x$r_buff1_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff1_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L782] EXPR 2 !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff1_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L782] EXPR 2 weak$$choice2 ? x$r_buff1_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff1_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L782] 2 x$r_buff1_thd2 = weak$$choice2 ? x$r_buff1_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff1_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L783] 2 __unbuffered_p1_EBX = x [L784] EXPR 2 x$flush_delayed ? x$mem_tmp : x [L784] 2 x = x$flush_delayed ? x$mem_tmp : x [L785] 2 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=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=2] [L788] 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) [L788] EXPR 2 x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x [L788] 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) [L788] 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) [L789] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L789] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L790] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L790] 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 [L791] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L791] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L792] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L792] 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 [L752] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L752] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L753] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L753] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L754] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L754] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L755] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L755] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L756] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L756] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L795] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L797] 2 return 0; [L759] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] [L815] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L3] COND FALSE 0 !(!cond) [L819] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L819] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L819] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L819] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L820] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L820] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L821] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L821] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L822] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L822] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L823] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L823] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L826] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p1_EAX == 2 && __unbuffered_p1_EBX == 0) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=2, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=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=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 81 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 10.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 32534.3ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1385.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 29015.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 73 SDtfs, 42 SDslu, 36 SDs, 0 SdLazy, 200 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 344.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 158.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=330occurred in iteration=6, InterpolantAutomatonStates: 32, 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: 34.0ms SsaConstructionTime, 313.1ms SatisfiabilityAnalysisTime, 645.7ms InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 388 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...