/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/podwr000_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 14:39:51,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 14:39:51,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 14:39:51,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 14:39:51,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 14:39:51,928 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 14:39:51,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 14:39:51,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 14:39:51,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 14:39:51,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 14:39:51,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 14:39:51,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 14:39:51,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 14:39:51,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 14:39:51,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 14:39:51,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 14:39:51,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 14:39:51,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 14:39:51,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 14:39:51,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 14:39:51,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 14:39:51,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 14:39:51,963 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 14:39:51,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 14:39:51,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 14:39:51,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 14:39:51,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 14:39:51,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 14:39:51,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 14:39:51,976 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 14:39:51,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 14:39:51,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 14:39:51,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 14:39:51,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 14:39:51,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 14:39:51,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 14:39:51,978 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-RepeatedSemanticLbe.epf [2021-03-25 14:39:52,015 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 14:39:52,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 14:39:52,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 14:39:52,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 14:39:52,018 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 14:39:52,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 14:39:52,018 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 14:39:52,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 14:39:52,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 14:39:52,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 14:39:52,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 14:39:52,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 14:39:52,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 14:39:52,020 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 14:39:52,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 14:39:52,020 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 14:39:52,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 14:39:52,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 14:39:52,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 14:39:52,021 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 14:39:52,021 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 14:39:52,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 14:39:52,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 14:39:52,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 14:39:52,022 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 14:39:52,022 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 14:39:52,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 14:39:52,022 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 14:39:52,022 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 14:39:52,022 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 14:39:52,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 14:39:52,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 14:39:52,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 14:39:52,365 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 14:39:52,366 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 14:39:52,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/podwr000_pso.opt.i [2021-03-25 14:39:52,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7732dcebe/e2c9f1c23ac749f5af47a3fb6893a647/FLAG50eace12d [2021-03-25 14:39:52,947 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 14:39:52,949 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/podwr000_pso.opt.i [2021-03-25 14:39:52,968 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7732dcebe/e2c9f1c23ac749f5af47a3fb6893a647/FLAG50eace12d [2021-03-25 14:39:53,407 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7732dcebe/e2c9f1c23ac749f5af47a3fb6893a647 [2021-03-25 14:39:53,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 14:39:53,411 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 14:39:53,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 14:39:53,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 14:39:53,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 14:39:53,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:39:53" (1/1) ... [2021-03-25 14:39:53,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@337a145c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:53, skipping insertion in model container [2021-03-25 14:39:53,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:39:53" (1/1) ... [2021-03-25 14:39:53,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 14:39:53,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 14:39:53,660 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/podwr000_pso.opt.i[950,963] [2021-03-25 14:39:53,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 14:39:53,878 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 14:39:53,890 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/podwr000_pso.opt.i[950,963] [2021-03-25 14:39:53,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 14:39:54,012 INFO L208 MainTranslator]: Completed translation [2021-03-25 14:39:54,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:54 WrapperNode [2021-03-25 14:39:54,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 14:39:54,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 14:39:54,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 14:39:54,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 14:39:54,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:54" (1/1) ... [2021-03-25 14:39:54,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:54" (1/1) ... [2021-03-25 14:39:54,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 14:39:54,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 14:39:54,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 14:39:54,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 14:39:54,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:54" (1/1) ... [2021-03-25 14:39:54,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:54" (1/1) ... [2021-03-25 14:39:54,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:54" (1/1) ... [2021-03-25 14:39:54,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:54" (1/1) ... [2021-03-25 14:39:54,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:54" (1/1) ... [2021-03-25 14:39:54,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:54" (1/1) ... [2021-03-25 14:39:54,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:54" (1/1) ... [2021-03-25 14:39:54,136 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 14:39:54,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 14:39:54,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 14:39:54,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 14:39:54,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 14:39:54,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 14:39:54,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 14:39:54,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 14:39:54,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 14:39:54,208 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 14:39:54,209 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 14:39:54,209 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 14:39:54,210 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 14:39:54,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 14:39:54,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 14:39:54,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 14:39:54,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 14:39:54,213 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 14:39:55,719 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 14:39:55,719 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-03-25 14:39:55,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:39:55 BoogieIcfgContainer [2021-03-25 14:39:55,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 14:39:55,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 14:39:55,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 14:39:55,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 14:39:55,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 02:39:53" (1/3) ... [2021-03-25 14:39:55,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b726f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:39:55, skipping insertion in model container [2021-03-25 14:39:55,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:39:54" (2/3) ... [2021-03-25 14:39:55,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b726f8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:39:55, skipping insertion in model container [2021-03-25 14:39:55,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:39:55" (3/3) ... [2021-03-25 14:39:55,727 INFO L111 eAbstractionObserver]: Analyzing ICFG podwr000_pso.opt.i [2021-03-25 14:39:55,735 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 14:39:55,739 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-25 14:39:55,740 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 14:39:55,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,777 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,777 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,777 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,777 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,778 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,780 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,780 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,783 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,783 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,783 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,783 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,786 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,787 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,788 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,794 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,796 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,796 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,796 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,797 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,801 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,802 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,802 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,802 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,802 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,802 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,802 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,802 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,802 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,802 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,802 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,803 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,805 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,806 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,806 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,806 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,806 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,806 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,806 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,806 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,806 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,807 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,808 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,810 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,810 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,810 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,810 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,810 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,810 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,810 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,810 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,811 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,811 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,811 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,813 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,814 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,814 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,814 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,814 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,814 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,814 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,814 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,814 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,814 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,814 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,814 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,815 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,815 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,816 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,816 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,816 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:39:55,817 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 14:39:55,833 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-25 14:39:55,859 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 14:39:55,859 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 14:39:55,859 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 14:39:55,859 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 14:39:55,859 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 14:39:55,859 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 14:39:55,859 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 14:39:55,860 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 14:39:55,872 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 81 transitions, 172 flow [2021-03-25 14:39:55,904 INFO L129 PetriNetUnfolder]: 2/79 cut-off events. [2021-03-25 14:39:55,905 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:39:55,907 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 79 events. 2/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2021-03-25 14:39:55,908 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 81 transitions, 172 flow [2021-03-25 14:39:55,911 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 79 transitions, 164 flow [2021-03-25 14:39:55,912 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:55,922 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 79 transitions, 164 flow [2021-03-25 14:39:55,924 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 79 transitions, 164 flow [2021-03-25 14:39:55,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 79 transitions, 164 flow [2021-03-25 14:39:55,939 INFO L129 PetriNetUnfolder]: 2/79 cut-off events. [2021-03-25 14:39:55,940 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:39:55,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 79 events. 2/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2021-03-25 14:39:55,942 INFO L142 LiptonReduction]: Number of co-enabled transitions 926 [2021-03-25 14:39:57,030 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-25 14:39:57,501 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 87 [2021-03-25 14:39:57,643 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-03-25 14:39:58,504 INFO L154 LiptonReduction]: Checked pairs total: 1486 [2021-03-25 14:39:58,505 INFO L156 LiptonReduction]: Total number of compositions: 56 [2021-03-25 14:39:58,506 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2595 [2021-03-25 14:39:58,513 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-03-25 14:39:58,513 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:39:58,513 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:58,513 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:58,513 INFO L428 AbstractCegarLoop]: === Iteration 1 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:58,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:58,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1946545486, now seen corresponding path program 1 times [2021-03-25 14:39:58,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:58,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246656028] [2021-03-25 14:39:58,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:58,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:58,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:39:58,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:58,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:39:58,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:39:58,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246656028] [2021-03-25 14:39:58,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:39:58,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:39:58,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029520314] [2021-03-25 14:39:58,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:39:58,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:39:58,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:39:58,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:39:58,710 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 137 [2021-03-25 14:39:58,713 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:58,713 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:39:58,713 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 137 [2021-03-25 14:39:58,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:39:58,770 INFO L129 PetriNetUnfolder]: 16/69 cut-off events. [2021-03-25 14:39:58,770 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:39:58,771 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 69 events. 16/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 220 event pairs, 11 based on Foata normal form. 9/75 useless extension candidates. Maximal degree in co-relation 95. Up to 27 conditions per place. [2021-03-25 14:39:58,773 INFO L132 encePairwiseOnDemand]: 133/137 looper letters, 7 selfloop transitions, 2 changer transitions 0/31 dead transitions. [2021-03-25 14:39:58,773 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 31 transitions, 86 flow [2021-03-25 14:39:58,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:39:58,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:39:58,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 360 transitions. [2021-03-25 14:39:58,788 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8759124087591241 [2021-03-25 14:39:58,789 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 360 transitions. [2021-03-25 14:39:58,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 360 transitions. [2021-03-25 14:39:58,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:39:58,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 360 transitions. [2021-03-25 14:39:58,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:58,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:58,808 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:58,810 INFO L185 Difference]: Start difference. First operand has 37 places, 31 transitions, 68 flow. Second operand 3 states and 360 transitions. [2021-03-25 14:39:58,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 31 transitions, 86 flow [2021-03-25 14:39:58,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 31 transitions, 84 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 14:39:58,813 INFO L241 Difference]: Finished difference. Result has 35 places, 28 transitions, 64 flow [2021-03-25 14:39:58,815 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2021-03-25 14:39:58,816 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places. [2021-03-25 14:39:58,816 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:39:58,816 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 28 transitions, 64 flow [2021-03-25 14:39:58,817 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 28 transitions, 64 flow [2021-03-25 14:39:58,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 28 transitions, 64 flow [2021-03-25 14:39:58,827 INFO L129 PetriNetUnfolder]: 0/28 cut-off events. [2021-03-25 14:39:58,827 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:39:58,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 28 events. 0/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 36 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 14:39:58,827 INFO L142 LiptonReduction]: Number of co-enabled transitions 192 [2021-03-25 14:39:59,856 INFO L154 LiptonReduction]: Checked pairs total: 620 [2021-03-25 14:39:59,856 INFO L156 LiptonReduction]: Total number of compositions: 9 [2021-03-25 14:39:59,857 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1041 [2021-03-25 14:39:59,858 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 19 transitions, 46 flow [2021-03-25 14:39:59,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:39:59,858 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:39:59,858 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:39:59,858 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 14:39:59,858 INFO L428 AbstractCegarLoop]: === Iteration 2 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:39:59,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:39:59,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1867850295, now seen corresponding path program 1 times [2021-03-25 14:39:59,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:39:59,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363573178] [2021-03-25 14:39:59,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:39:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:39:59,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:59,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:39:59,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:39:59,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:40:00,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:40:00,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:40:00,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:40:00,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:40:00,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:40:00,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363573178] [2021-03-25 14:40:00,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:40:00,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:40:00,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977390533] [2021-03-25 14:40:00,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:40:00,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:40:00,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:40:00,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:40:00,010 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 146 [2021-03-25 14:40:00,011 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 19 transitions, 46 flow. Second operand has 4 states, 4 states have (on average 119.75) internal successors, (479), 4 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:40:00,011 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:40:00,011 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 146 [2021-03-25 14:40:00,011 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:40:00,051 INFO L129 PetriNetUnfolder]: 10/45 cut-off events. [2021-03-25 14:40:00,051 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:40:00,052 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 45 events. 10/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 109 event pairs, 2 based on Foata normal form. 4/40 useless extension candidates. Maximal degree in co-relation 71. Up to 22 conditions per place. [2021-03-25 14:40:00,052 INFO L132 encePairwiseOnDemand]: 141/146 looper letters, 4 selfloop transitions, 3 changer transitions 7/27 dead transitions. [2021-03-25 14:40:00,052 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 27 transitions, 90 flow [2021-03-25 14:40:00,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:40:00,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:40:00,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 611 transitions. [2021-03-25 14:40:00,055 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.836986301369863 [2021-03-25 14:40:00,055 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 611 transitions. [2021-03-25 14:40:00,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 611 transitions. [2021-03-25 14:40:00,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:40:00,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 611 transitions. [2021-03-25 14:40:00,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.2) internal successors, (611), 5 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:40:00,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 146.0) internal successors, (876), 6 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:40:00,060 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 146.0) internal successors, (876), 6 states have internal predecessors, (876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:40:00,060 INFO L185 Difference]: Start difference. First operand has 26 places, 19 transitions, 46 flow. Second operand 5 states and 611 transitions. [2021-03-25 14:40:00,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 27 transitions, 90 flow [2021-03-25 14:40:00,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 27 transitions, 86 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 14:40:00,062 INFO L241 Difference]: Finished difference. Result has 31 places, 20 transitions, 67 flow [2021-03-25 14:40:00,062 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=67, PETRI_PLACES=31, PETRI_TRANSITIONS=20} [2021-03-25 14:40:00,062 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, -6 predicate places. [2021-03-25 14:40:00,062 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:40:00,062 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 20 transitions, 67 flow [2021-03-25 14:40:00,065 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 20 transitions, 67 flow [2021-03-25 14:40:00,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 20 transitions, 67 flow [2021-03-25 14:40:00,071 INFO L129 PetriNetUnfolder]: 5/32 cut-off events. [2021-03-25 14:40:00,071 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-03-25 14:40:00,072 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 32 events. 5/32 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 53 event pairs, 2 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 55. Up to 12 conditions per place. [2021-03-25 14:40:00,072 INFO L142 LiptonReduction]: Number of co-enabled transitions 102 [2021-03-25 14:40:00,598 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2021-03-25 14:40:00,710 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-03-25 14:40:00,986 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2021-03-25 14:40:01,099 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-03-25 14:40:01,101 INFO L154 LiptonReduction]: Checked pairs total: 300 [2021-03-25 14:40:01,101 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 14:40:01,101 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1039 [2021-03-25 14:40:01,102 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 63 flow [2021-03-25 14:40:01,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 119.75) internal successors, (479), 4 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:40:01,103 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:40:01,103 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:40:01,103 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 14:40:01,103 INFO L428 AbstractCegarLoop]: === Iteration 3 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:40:01,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:40:01,103 INFO L82 PathProgramCache]: Analyzing trace with hash -365550519, now seen corresponding path program 1 times [2021-03-25 14:40:01,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:40:01,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82241834] [2021-03-25 14:40:01,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:40:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:40:01,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:40:01,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:40:01,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:40:01,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:40:01,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:40:01,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:40:01,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:40:01,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:40:01,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:40:01,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82241834] [2021-03-25 14:40:01,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:40:01,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:40:01,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872703979] [2021-03-25 14:40:01,232 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:40:01,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:40:01,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:40:01,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:40:01,233 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 148 [2021-03-25 14:40:01,234 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 63 flow. Second operand has 5 states, 5 states have (on average 119.8) internal successors, (599), 5 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:40:01,234 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:40:01,234 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 148 [2021-03-25 14:40:01,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:40:01,269 INFO L129 PetriNetUnfolder]: 2/22 cut-off events. [2021-03-25 14:40:01,269 INFO L130 PetriNetUnfolder]: For 13/15 co-relation queries the response was YES. [2021-03-25 14:40:01,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 22 events. 2/22 cut-off events. For 13/15 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 5/26 useless extension candidates. Maximal degree in co-relation 49. Up to 10 conditions per place. [2021-03-25 14:40:01,270 INFO L132 encePairwiseOnDemand]: 143/148 looper letters, 2 selfloop transitions, 5 changer transitions 4/21 dead transitions. [2021-03-25 14:40:01,270 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 21 transitions, 99 flow [2021-03-25 14:40:01,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 14:40:01,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 14:40:01,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 726 transitions. [2021-03-25 14:40:01,272 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8175675675675675 [2021-03-25 14:40:01,272 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 726 transitions. [2021-03-25 14:40:01,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 726 transitions. [2021-03-25 14:40:01,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:40:01,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 726 transitions. [2021-03-25 14:40:01,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.0) internal successors, (726), 6 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:40:01,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 148.0) internal successors, (1036), 7 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:40:01,277 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 148.0) internal successors, (1036), 7 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:40:01,277 INFO L185 Difference]: Start difference. First operand has 26 places, 18 transitions, 63 flow. Second operand 6 states and 726 transitions. [2021-03-25 14:40:01,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 21 transitions, 99 flow [2021-03-25 14:40:01,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 21 transitions, 86 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-25 14:40:01,278 INFO L241 Difference]: Finished difference. Result has 32 places, 17 transitions, 72 flow [2021-03-25 14:40:01,278 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=148, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=72, PETRI_PLACES=32, PETRI_TRANSITIONS=17} [2021-03-25 14:40:01,278 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, -5 predicate places. [2021-03-25 14:40:01,279 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:40:01,279 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 17 transitions, 72 flow [2021-03-25 14:40:01,279 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 17 transitions, 72 flow [2021-03-25 14:40:01,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 17 transitions, 72 flow [2021-03-25 14:40:01,282 INFO L129 PetriNetUnfolder]: 1/17 cut-off events. [2021-03-25 14:40:01,283 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-03-25 14:40:01,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 17 events. 1/17 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 33. Up to 6 conditions per place. [2021-03-25 14:40:01,283 INFO L142 LiptonReduction]: Number of co-enabled transitions 46 [2021-03-25 14:40:01,582 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-03-25 14:40:01,728 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-03-25 14:40:02,061 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-03-25 14:40:02,239 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-03-25 14:40:02,242 INFO L154 LiptonReduction]: Checked pairs total: 162 [2021-03-25 14:40:02,242 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-25 14:40:02,242 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 963 [2021-03-25 14:40:02,242 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 15 transitions, 68 flow [2021-03-25 14:40:02,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 119.8) internal successors, (599), 5 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:40:02,243 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:40:02,243 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:40:02,243 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 14:40:02,243 INFO L428 AbstractCegarLoop]: === Iteration 4 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:40:02,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:40:02,244 INFO L82 PathProgramCache]: Analyzing trace with hash 362575166, now seen corresponding path program 1 times [2021-03-25 14:40:02,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:40:02,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466478806] [2021-03-25 14:40:02,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:40:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:40:02,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:40:02,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:40:02,399 INFO L142 QuantifierPusher]: treesize reduction 10, result has 60.0 percent of original size [2021-03-25 14:40:02,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 14:40:02,413 INFO L142 QuantifierPusher]: treesize reduction 21, result has 64.4 percent of original size [2021-03-25 14:40:02,415 INFO L147 QuantifierPusher]: treesize reduction 8, result has 78.9 percent of original size 30 [2021-03-25 14:40:02,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:40:02,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:40:02,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:40:02,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466478806] [2021-03-25 14:40:02,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:40:02,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:40:02,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634789137] [2021-03-25 14:40:02,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:40:02,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:40:02,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:40:02,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:40:02,436 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 150 [2021-03-25 14:40:02,436 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 15 transitions, 68 flow. Second operand has 5 states, 5 states have (on average 103.4) internal successors, (517), 5 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:40:02,436 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:40:02,436 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 150 [2021-03-25 14:40:02,437 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:40:02,510 INFO L129 PetriNetUnfolder]: 7/41 cut-off events. [2021-03-25 14:40:02,511 INFO L130 PetriNetUnfolder]: For 85/89 co-relation queries the response was YES. [2021-03-25 14:40:02,511 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 41 events. 7/41 cut-off events. For 85/89 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 115 event pairs, 0 based on Foata normal form. 5/46 useless extension candidates. Maximal degree in co-relation 104. Up to 17 conditions per place. [2021-03-25 14:40:02,511 INFO L132 encePairwiseOnDemand]: 145/150 looper letters, 5 selfloop transitions, 6 changer transitions 2/22 dead transitions. [2021-03-25 14:40:02,511 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 22 transitions, 118 flow [2021-03-25 14:40:02,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 14:40:02,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 14:40:02,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 626 transitions. [2021-03-25 14:40:02,517 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6955555555555556 [2021-03-25 14:40:02,518 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 626 transitions. [2021-03-25 14:40:02,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 626 transitions. [2021-03-25 14:40:02,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:40:02,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 626 transitions. [2021-03-25 14:40:02,523 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 104.33333333333333) internal successors, (626), 6 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:40:02,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:40:02,527 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 150.0) internal successors, (1050), 7 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:40:02,527 INFO L185 Difference]: Start difference. First operand has 27 places, 15 transitions, 68 flow. Second operand 6 states and 626 transitions. [2021-03-25 14:40:02,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 22 transitions, 118 flow [2021-03-25 14:40:02,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 22 transitions, 96 flow, removed 8 selfloop flow, removed 5 redundant places. [2021-03-25 14:40:02,529 INFO L241 Difference]: Finished difference. Result has 30 places, 20 transitions, 97 flow [2021-03-25 14:40:02,529 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=97, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2021-03-25 14:40:02,529 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, -7 predicate places. [2021-03-25 14:40:02,529 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:40:02,529 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 20 transitions, 97 flow [2021-03-25 14:40:02,529 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 20 transitions, 97 flow [2021-03-25 14:40:02,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 20 transitions, 97 flow [2021-03-25 14:40:02,534 INFO L129 PetriNetUnfolder]: 5/35 cut-off events. [2021-03-25 14:40:02,534 INFO L130 PetriNetUnfolder]: For 25/27 co-relation queries the response was YES. [2021-03-25 14:40:02,534 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 35 events. 5/35 cut-off events. For 25/27 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 77 event pairs, 0 based on Foata normal form. 2/37 useless extension candidates. Maximal degree in co-relation 82. Up to 10 conditions per place. [2021-03-25 14:40:02,534 INFO L142 LiptonReduction]: Number of co-enabled transitions 44 [2021-03-25 14:40:02,536 INFO L154 LiptonReduction]: Checked pairs total: 29 [2021-03-25 14:40:02,536 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:40:02,536 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-25 14:40:02,536 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 20 transitions, 97 flow [2021-03-25 14:40:02,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 103.4) internal successors, (517), 5 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:40:02,537 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:40:02,537 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:40:02,537 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 14:40:02,537 INFO L428 AbstractCegarLoop]: === Iteration 5 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:40:02,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:40:02,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1326663455, now seen corresponding path program 1 times [2021-03-25 14:40:02,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:40:02,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239691477] [2021-03-25 14:40:02,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:40:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:40:02,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:40:02,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:40:02,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:40:02,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:40:02,683 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-25 14:40:02,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 14:40:02,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:40:02,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239691477] [2021-03-25 14:40:02,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:40:02,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:40:02,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119294849] [2021-03-25 14:40:02,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:40:02,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:40:02,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:40:02,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:40:02,695 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 150 [2021-03-25 14:40:02,696 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 20 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 118.25) internal successors, (473), 4 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:40:02,696 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:40:02,696 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 150 [2021-03-25 14:40:02,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:40:02,731 INFO L129 PetriNetUnfolder]: 7/48 cut-off events. [2021-03-25 14:40:02,731 INFO L130 PetriNetUnfolder]: For 61/67 co-relation queries the response was YES. [2021-03-25 14:40:02,731 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 48 events. 7/48 cut-off events. For 61/67 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 159 event pairs, 0 based on Foata normal form. 8/56 useless extension candidates. Maximal degree in co-relation 120. Up to 12 conditions per place. [2021-03-25 14:40:02,732 INFO L132 encePairwiseOnDemand]: 146/150 looper letters, 4 selfloop transitions, 3 changer transitions 4/21 dead transitions. [2021-03-25 14:40:02,732 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 21 transitions, 111 flow [2021-03-25 14:40:02,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:40:02,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:40:02,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 476 transitions. [2021-03-25 14:40:02,734 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7933333333333333 [2021-03-25 14:40:02,734 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 476 transitions. [2021-03-25 14:40:02,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 476 transitions. [2021-03-25 14:40:02,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:40:02,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 476 transitions. [2021-03-25 14:40:02,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:40:02,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 150.0) internal successors, (750), 5 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:40:02,737 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 150.0) internal successors, (750), 5 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:40:02,737 INFO L185 Difference]: Start difference. First operand has 28 places, 20 transitions, 97 flow. Second operand 4 states and 476 transitions. [2021-03-25 14:40:02,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 21 transitions, 111 flow [2021-03-25 14:40:02,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 21 transitions, 109 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-25 14:40:02,739 INFO L241 Difference]: Finished difference. Result has 32 places, 17 transitions, 88 flow [2021-03-25 14:40:02,740 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=150, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=88, PETRI_PLACES=32, PETRI_TRANSITIONS=17} [2021-03-25 14:40:02,740 INFO L343 CegarLoopForPetriNet]: 37 programPoint places, -5 predicate places. [2021-03-25 14:40:02,740 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:40:02,740 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 17 transitions, 88 flow [2021-03-25 14:40:02,740 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 17 transitions, 88 flow [2021-03-25 14:40:02,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 17 transitions, 88 flow [2021-03-25 14:40:02,766 INFO L129 PetriNetUnfolder]: 3/26 cut-off events. [2021-03-25 14:40:02,767 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2021-03-25 14:40:02,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 26 events. 3/26 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 64. Up to 6 conditions per place. [2021-03-25 14:40:02,767 INFO L142 LiptonReduction]: Number of co-enabled transitions 20 [2021-03-25 14:40:02,891 INFO L154 LiptonReduction]: Checked pairs total: 29 [2021-03-25 14:40:02,891 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 14:40:02,891 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 151 [2021-03-25 14:40:02,892 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 17 transitions, 91 flow [2021-03-25 14:40:02,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 118.25) internal successors, (473), 4 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:40:02,893 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:40:02,893 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:40:02,893 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 14:40:02,893 INFO L428 AbstractCegarLoop]: === Iteration 6 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:40:02,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:40:02,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1401696627, now seen corresponding path program 2 times [2021-03-25 14:40:02,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:40:02,894 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099903026] [2021-03-25 14:40:02,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:40:02,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 14:40:02,998 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 14:40:03,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 14:40:03,081 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 14:40:03,105 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 14:40:03,105 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 14:40:03,105 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 14:40:03,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 02:40:03 BasicIcfg [2021-03-25 14:40:03,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 14:40:03,169 INFO L168 Benchmark]: Toolchain (without parser) took 9757.42 ms. Allocated memory was 352.3 MB in the beginning and 555.7 MB in the end (delta: 203.4 MB). Free memory was 314.9 MB in the beginning and 463.2 MB in the end (delta: -148.2 MB). Peak memory consumption was 56.3 MB. Max. memory is 16.0 GB. [2021-03-25 14:40:03,169 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 352.3 MB. Free memory was 333.6 MB in the beginning and 333.5 MB in the end (delta: 71.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 14:40:03,170 INFO L168 Benchmark]: CACSL2BoogieTranslator took 599.34 ms. Allocated memory is still 352.3 MB. Free memory was 314.7 MB in the beginning and 311.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:40:03,170 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.34 ms. Allocated memory is still 352.3 MB. Free memory was 311.1 MB in the beginning and 309.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:40:03,170 INFO L168 Benchmark]: Boogie Preprocessor took 48.25 ms. Allocated memory is still 352.3 MB. Free memory was 309.0 MB in the beginning and 306.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:40:03,171 INFO L168 Benchmark]: RCFGBuilder took 1584.59 ms. Allocated memory is still 352.3 MB. Free memory was 306.9 MB in the beginning and 292.5 MB in the end (delta: 14.4 MB). Peak memory consumption was 161.5 MB. Max. memory is 16.0 GB. [2021-03-25 14:40:03,171 INFO L168 Benchmark]: TraceAbstraction took 7446.08 ms. Allocated memory was 352.3 MB in the beginning and 555.7 MB in the end (delta: 203.4 MB). Free memory was 291.4 MB in the beginning and 463.2 MB in the end (delta: -171.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.0 GB. [2021-03-25 14:40:03,180 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 352.3 MB. Free memory was 333.6 MB in the beginning and 333.5 MB in the end (delta: 71.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 599.34 ms. Allocated memory is still 352.3 MB. Free memory was 314.7 MB in the beginning and 311.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 72.34 ms. Allocated memory is still 352.3 MB. Free memory was 311.1 MB in the beginning and 309.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 48.25 ms. Allocated memory is still 352.3 MB. Free memory was 309.0 MB in the beginning and 306.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 1584.59 ms. Allocated memory is still 352.3 MB. Free memory was 306.9 MB in the beginning and 292.5 MB in the end (delta: 14.4 MB). Peak memory consumption was 161.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7446.08 ms. Allocated memory was 352.3 MB in the beginning and 555.7 MB in the end (delta: 203.4 MB). Free memory was 291.4 MB in the beginning and 463.2 MB in the end (delta: -171.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2580.2ms, 84 PlacesBefore, 37 PlacesAfterwards, 79 TransitionsBefore, 31 TransitionsAfterwards, 926 CoEnabledTransitionPairs, 4 FixpointIterations, 26 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 56 TotalNumberOfCompositions, 1486 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 930, positive: 878, positive conditional: 0, positive unconditional: 878, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 656, positive: 629, positive conditional: 0, positive unconditional: 629, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 656, positive: 629, positive conditional: 0, positive unconditional: 629, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 656, positive: 627, positive conditional: 0, positive unconditional: 627, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 29, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 354, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 345, negative conditional: 0, negative unconditional: 345, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 930, positive: 249, positive conditional: 0, positive unconditional: 249, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 656, unknown conditional: 0, unknown unconditional: 656] , Statistics on independence cache: Total cache size (in pairs): 109, Positive cache size: 94, Positive conditional cache size: 0, Positive unconditional cache size: 94, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1039.6ms, 35 PlacesBefore, 26 PlacesAfterwards, 28 TransitionsBefore, 19 TransitionsAfterwards, 192 CoEnabledTransitionPairs, 3 FixpointIterations, 5 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 620 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 263, positive: 206, positive conditional: 0, positive unconditional: 206, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 50, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 50, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 50, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 308, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 308, negative conditional: 0, negative unconditional: 308, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 263, positive: 174, positive conditional: 0, positive unconditional: 174, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 50, unknown conditional: 0, unknown unconditional: 50] , Statistics on independence cache: Total cache size (in pairs): 86, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1035.9ms, 31 PlacesBefore, 26 PlacesAfterwards, 20 TransitionsBefore, 18 TransitionsAfterwards, 102 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 300 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 67, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , 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: 67, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 962.8ms, 32 PlacesBefore, 27 PlacesAfterwards, 17 TransitionsBefore, 15 TransitionsAfterwards, 46 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 162 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 75, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 33, negative conditional: 0, negative unconditional: 33, 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: 75, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 47, Positive conditional cache size: 0, Positive unconditional cache size: 47, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.4ms, 30 PlacesBefore, 28 PlacesAfterwards, 20 TransitionsBefore, 20 TransitionsAfterwards, 44 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 29 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 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: 16, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 47, Positive conditional cache size: 0, Positive unconditional cache size: 47, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 150.4ms, 32 PlacesBefore, 31 PlacesAfterwards, 17 TransitionsBefore, 17 TransitionsAfterwards, 20 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 29 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 19, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 19, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12 - 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_p0_EAX = 0; [L712] 0 int __unbuffered_p1_EAX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L718] 0 int y = 0; [L719] 0 _Bool y$flush_delayed; [L720] 0 int y$mem_tmp; [L721] 0 _Bool y$r_buff0_thd0; [L722] 0 _Bool y$r_buff0_thd1; [L723] 0 _Bool y$r_buff0_thd2; [L724] 0 _Bool y$r_buff1_thd0; [L725] 0 _Bool y$r_buff1_thd1; [L726] 0 _Bool y$r_buff1_thd2; [L727] 0 _Bool y$read_delayed; [L728] 0 int *y$read_delayed_var; [L729] 0 int y$w_buff0; [L730] 0 _Bool y$w_buff0_used; [L731] 0 int y$w_buff1; [L732] 0 _Bool y$w_buff1_used; [L733] 0 _Bool weak$$choice0; [L734] 0 _Bool weak$$choice2; [L807] 0 pthread_t t1551; [L808] FCALL, FORK 0 pthread_create(&t1551, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L809] 0 pthread_t t1552; [L810] FCALL, FORK 0 pthread_create(&t1552, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L738] 1 y$w_buff1 = y$w_buff0 [L739] 1 y$w_buff0 = 1 [L740] 1 y$w_buff1_used = y$w_buff0_used [L741] 1 y$w_buff0_used = (_Bool)1 [L18] COND FALSE 1 !(!expression) [L743] 1 y$r_buff1_thd0 = y$r_buff0_thd0 [L744] 1 y$r_buff1_thd1 = y$r_buff0_thd1 [L745] 1 y$r_buff1_thd2 = y$r_buff0_thd2 [L746] 1 y$r_buff0_thd1 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L749] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L766] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L769] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L770] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L771] 2 y$flush_delayed = weak$$choice2 [L772] 2 y$mem_tmp = y [L773] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L773] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L774] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L774] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0) [L774] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L774] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L775] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L775] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1) [L775] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L775] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L776] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L776] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used) [L776] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L776] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L777] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L777] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L777] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L777] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L778] EXPR 2 weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L778] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2) [L778] EXPR 2 weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L778] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L779] EXPR 2 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L779] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L779] EXPR 2 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L779] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L780] 2 __unbuffered_p1_EAX = y [L781] EXPR 2 y$flush_delayed ? y$mem_tmp : y [L781] 2 y = y$flush_delayed ? y$mem_tmp : y [L782] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L785] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L785] EXPR 2 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y [L785] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L785] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L786] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L786] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L787] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L787] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L788] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L788] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L789] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L789] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L752] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L752] 1 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L753] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L753] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L754] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L754] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L755] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L755] 1 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L756] EXPR 1 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L756] 1 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L759] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L761] 1 return 0; [L792] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L794] 2 return 0; [L812] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L3] COND FALSE 0 !(!cond) [L816] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L816] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L816] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L816] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L817] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L817] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L818] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L818] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L819] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L819] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L820] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L820] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L823] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 80 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 7251.5ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 351.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2650.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 18 SDtfs, 7 SDslu, 8 SDs, 0 SdLazy, 90 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 103.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 79.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=4, InterpolantAutomatonStates: 24, 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: 21.0ms SsaConstructionTime, 306.1ms SatisfiabilityAnalysisTime, 478.0ms InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 247 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...