/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:51:32,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:51:32,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:51:32,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 00:51:32,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 00:51:32,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 00:51:32,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 00:51:32,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 00:51:32,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 00:51:32,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 00:51:32,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 00:51:32,881 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 00:51:32,882 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:51:32,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:51:32,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:51:32,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:51:32,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:51:32,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:51:32,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:51:32,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:51:32,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:51:32,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:51:32,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:51:32,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:51:32,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:51:32,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:51:32,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:51:32,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:51:32,923 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-03-26 00:51:32,956 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:51:32,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:51:32,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:51:32,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:51:32,960 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:51:32,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:51:32,961 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:51:32,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:51:32,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:51:32,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:51:32,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:51:32,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:51:32,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:51:32,962 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:51:32,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:51:32,962 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:51:32,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:51:32,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:51:32,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:51:32,963 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:51:32,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:51:32,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:51:32,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:51:32,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:51:32,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:51:32,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:51:32,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:51:32,964 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:51:32,964 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:51:32,964 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:51:32,964 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:51:33,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:51:33,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:51:33,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:51:33,273 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:51:33,275 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:51:33,276 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2021-03-26 00:51:33,342 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82747fb18/ff808cddf2884e8a95629b3e87ee92fb/FLAG721838933 [2021-03-26 00:51:33,903 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:51:33,903 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2021-03-26 00:51:33,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82747fb18/ff808cddf2884e8a95629b3e87ee92fb/FLAG721838933 [2021-03-26 00:51:34,332 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82747fb18/ff808cddf2884e8a95629b3e87ee92fb [2021-03-26 00:51:34,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:51:34,335 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:51:34,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:51:34,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:51:34,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:51:34,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:51:34" (1/1) ... [2021-03-26 00:51:34,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b7ea82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:51:34, skipping insertion in model container [2021-03-26 00:51:34,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:51:34" (1/1) ... [2021-03-26 00:51:34,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:51:34,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:51:34,523 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/safe034_tso.oepc.i[950,963] [2021-03-26 00:51:34,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:51:34,633 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:51:34,642 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/safe034_tso.oepc.i[950,963] [2021-03-26 00:51:34,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:51:34,725 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:51:34,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:51:34 WrapperNode [2021-03-26 00:51:34,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:51:34,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:51:34,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:51:34,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:51:34,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:51:34" (1/1) ... [2021-03-26 00:51:34,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:51:34" (1/1) ... [2021-03-26 00:51:34,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:51:34,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:51:34,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:51:34,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:51:34,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:51:34" (1/1) ... [2021-03-26 00:51:34,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:51:34" (1/1) ... [2021-03-26 00:51:34,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:51:34" (1/1) ... [2021-03-26 00:51:34,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:51:34" (1/1) ... [2021-03-26 00:51:34,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:51:34" (1/1) ... [2021-03-26 00:51:34,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:51:34" (1/1) ... [2021-03-26 00:51:34,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:51:34" (1/1) ... [2021-03-26 00:51:34,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:51:34,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:51:34,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:51:34,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:51:34,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:51:34" (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 [2021-03-26 00:51:34,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:51:34,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:51:34,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:51:34,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:51:34,849 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:51:34,849 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:51:34,850 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:51:34,850 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:51:34,850 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 00:51:34,850 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 00:51:34,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:51:34,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:51:34,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:51:34,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:51:34,852 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 00:51:35,229 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:51:35,229 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 00:51:35,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:51:35 BoogieIcfgContainer [2021-03-26 00:51:35,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:51:35,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:51:35,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:51:35,237 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:51:35,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:51:34" (1/3) ... [2021-03-26 00:51:35,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ace7b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:51:35, skipping insertion in model container [2021-03-26 00:51:35,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:51:34" (2/3) ... [2021-03-26 00:51:35,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ace7b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:51:35, skipping insertion in model container [2021-03-26 00:51:35,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:51:35" (3/3) ... [2021-03-26 00:51:35,239 INFO L111 eAbstractionObserver]: Analyzing ICFG safe034_tso.oepc.i [2021-03-26 00:51:35,245 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:51:35,249 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 00:51:35,250 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:51:35,284 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,284 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,284 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,285 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,285 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,285 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,285 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,285 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,285 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,286 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,286 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,286 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,287 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,287 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,287 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,287 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,287 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,287 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,287 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,287 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,288 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,288 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,288 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,289 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,290 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,290 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,291 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,291 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,291 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,291 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,292 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,292 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,292 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,292 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,293 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,293 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,295 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,295 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,295 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,302 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,302 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,302 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,302 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,308 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,308 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,308 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,308 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:51:35,310 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:51:35,327 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 00:51:35,357 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:51:35,357 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:51:35,357 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:51:35,357 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:51:35,357 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:51:35,357 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:51:35,357 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:51:35,357 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:51:35,370 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-03-26 00:51:35,422 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-03-26 00:51:35,422 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:51:35,428 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 53 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-26 00:51:35,428 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-03-26 00:51:35,443 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-03-26 00:51:35,445 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:51:35,468 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-26 00:51:35,470 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-26 00:51:35,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-03-26 00:51:35,484 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-03-26 00:51:35,485 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:51:35,485 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-26 00:51:35,487 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-26 00:51:37,084 INFO L154 LiptonReduction]: Checked pairs total: 1222 [2021-03-26 00:51:37,084 INFO L156 LiptonReduction]: Total number of compositions: 41 [2021-03-26 00:51:37,086 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1642 [2021-03-26 00:51:37,096 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-26 00:51:37,096 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:51:37,096 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:51:37,097 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:51:37,097 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:51:37,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:51:37,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1222585768, now seen corresponding path program 1 times [2021-03-26 00:51:37,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:51:37,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097373083] [2021-03-26 00:51:37,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:51:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:51:37,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:51:37,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:51:37,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:51:37,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:51:37,386 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-26 00:51:37,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 00:51:37,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:51:37,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097373083] [2021-03-26 00:51:37,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:51:37,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:51:37,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176669693] [2021-03-26 00:51:37,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:51:37,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:51:37,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:51:37,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:51:37,426 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 116 [2021-03-26 00:51:37,432 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 51 flow. Second operand has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:37,439 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:51:37,439 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 116 [2021-03-26 00:51:37,440 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:51:37,484 INFO L129 PetriNetUnfolder]: 6/42 cut-off events. [2021-03-26 00:51:37,484 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:51:37,485 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 42 events. 6/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 96 event pairs, 2 based on Foata normal form. 4/46 useless extension candidates. Maximal degree in co-relation 60. Up to 15 conditions per place. [2021-03-26 00:51:37,486 INFO L132 encePairwiseOnDemand]: 111/116 looper letters, 4 selfloop transitions, 3 changer transitions 5/28 dead transitions. [2021-03-26 00:51:37,487 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 28 transitions, 89 flow [2021-03-26 00:51:37,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:51:37,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:51:37,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 494 transitions. [2021-03-26 00:51:37,506 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8517241379310345 [2021-03-26 00:51:37,507 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 494 transitions. [2021-03-26 00:51:37,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 494 transitions. [2021-03-26 00:51:37,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:51:37,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 494 transitions. [2021-03-26 00:51:37,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 98.8) internal successors, (494), 5 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:37,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:37,530 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:37,531 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 51 flow. Second operand 5 states and 494 transitions. [2021-03-26 00:51:37,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 28 transitions, 89 flow [2021-03-26 00:51:37,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 28 transitions, 86 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 00:51:37,536 INFO L241 Difference]: Finished difference. Result has 35 places, 23 transitions, 75 flow [2021-03-26 00:51:37,538 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=75, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2021-03-26 00:51:37,539 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2021-03-26 00:51:37,539 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:51:37,539 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 23 transitions, 75 flow [2021-03-26 00:51:37,540 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 23 transitions, 75 flow [2021-03-26 00:51:37,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 23 transitions, 75 flow [2021-03-26 00:51:37,553 INFO L129 PetriNetUnfolder]: 5/32 cut-off events. [2021-03-26 00:51:37,553 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-03-26 00:51:37,554 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 32 events. 5/32 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 43 event pairs, 2 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 56. Up to 12 conditions per place. [2021-03-26 00:51:37,555 INFO L142 LiptonReduction]: Number of co-enabled transitions 150 [2021-03-26 00:51:37,851 INFO L154 LiptonReduction]: Checked pairs total: 366 [2021-03-26 00:51:37,851 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 00:51:37,851 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 312 [2021-03-26 00:51:37,853 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 21 transitions, 71 flow [2021-03-26 00:51:37,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:37,854 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:51:37,854 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:51:37,854 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:51:37,854 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:51:37,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:51:37,861 INFO L82 PathProgramCache]: Analyzing trace with hash 754524341, now seen corresponding path program 1 times [2021-03-26 00:51:37,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:51:37,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540341631] [2021-03-26 00:51:37,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:51:37,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:51:37,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:51:37,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:51:37,954 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:51:37,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:51:37,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:51:37,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:51:37,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:51:37,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540341631] [2021-03-26 00:51:37,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:51:37,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:51:37,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260877752] [2021-03-26 00:51:37,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:51:37,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:51:37,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:51:37,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:51:37,967 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 118 [2021-03-26 00:51:37,968 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 71 flow. Second operand has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:37,968 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:51:37,968 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 118 [2021-03-26 00:51:37,968 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:51:38,041 INFO L129 PetriNetUnfolder]: 48/116 cut-off events. [2021-03-26 00:51:38,041 INFO L130 PetriNetUnfolder]: For 42/47 co-relation queries the response was YES. [2021-03-26 00:51:38,043 INFO L84 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 116 events. 48/116 cut-off events. For 42/47 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 474 event pairs, 21 based on Foata normal form. 16/125 useless extension candidates. Maximal degree in co-relation 264. Up to 61 conditions per place. [2021-03-26 00:51:38,044 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 7 selfloop transitions, 7 changer transitions 2/31 dead transitions. [2021-03-26 00:51:38,044 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 31 transitions, 123 flow [2021-03-26 00:51:38,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:51:38,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:51:38,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 453 transitions. [2021-03-26 00:51:38,046 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7677966101694915 [2021-03-26 00:51:38,046 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 453 transitions. [2021-03-26 00:51:38,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 453 transitions. [2021-03-26 00:51:38,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:51:38,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 453 transitions. [2021-03-26 00:51:38,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:38,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:38,050 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:38,050 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 71 flow. Second operand 5 states and 453 transitions. [2021-03-26 00:51:38,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 31 transitions, 123 flow [2021-03-26 00:51:38,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 31 transitions, 118 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 00:51:38,052 INFO L241 Difference]: Finished difference. Result has 36 places, 27 transitions, 120 flow [2021-03-26 00:51:38,053 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=120, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2021-03-26 00:51:38,053 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places. [2021-03-26 00:51:38,053 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:51:38,054 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 27 transitions, 120 flow [2021-03-26 00:51:38,055 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 27 transitions, 120 flow [2021-03-26 00:51:38,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 27 transitions, 120 flow [2021-03-26 00:51:38,072 INFO L129 PetriNetUnfolder]: 48/115 cut-off events. [2021-03-26 00:51:38,072 INFO L130 PetriNetUnfolder]: For 94/98 co-relation queries the response was YES. [2021-03-26 00:51:38,074 INFO L84 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 115 events. 48/115 cut-off events. For 94/98 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 444 event pairs, 22 based on Foata normal form. 2/110 useless extension candidates. Maximal degree in co-relation 313. Up to 62 conditions per place. [2021-03-26 00:51:38,076 INFO L142 LiptonReduction]: Number of co-enabled transitions 200 [2021-03-26 00:51:38,237 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 00:51:38,472 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 00:51:38,552 INFO L154 LiptonReduction]: Checked pairs total: 305 [2021-03-26 00:51:38,552 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 00:51:38,552 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 499 [2021-03-26 00:51:38,553 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 25 transitions, 112 flow [2021-03-26 00:51:38,553 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:38,553 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:51:38,554 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:51:38,554 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:51:38,554 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:51:38,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:51:38,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1604402871, now seen corresponding path program 1 times [2021-03-26 00:51:38,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:51:38,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236493559] [2021-03-26 00:51:38,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:51:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:51:38,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:51:38,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:51:38,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:51:38,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:51:38,643 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:51:38,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:51:38,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:51:38,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:51:38,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:51:38,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236493559] [2021-03-26 00:51:38,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:51:38,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:51:38,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366305660] [2021-03-26 00:51:38,650 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:51:38,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:51:38,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:51:38,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:51:38,653 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 119 [2021-03-26 00:51:38,653 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:38,653 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:51:38,653 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 119 [2021-03-26 00:51:38,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:51:38,706 INFO L129 PetriNetUnfolder]: 23/71 cut-off events. [2021-03-26 00:51:38,706 INFO L130 PetriNetUnfolder]: For 103/114 co-relation queries the response was YES. [2021-03-26 00:51:38,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 71 events. 23/71 cut-off events. For 103/114 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 226 event pairs, 4 based on Foata normal form. 16/84 useless extension candidates. Maximal degree in co-relation 231. Up to 42 conditions per place. [2021-03-26 00:51:38,708 INFO L132 encePairwiseOnDemand]: 113/119 looper letters, 5 selfloop transitions, 10 changer transitions 4/33 dead transitions. [2021-03-26 00:51:38,708 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 33 transitions, 196 flow [2021-03-26 00:51:38,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:51:38,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:51:38,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 543 transitions. [2021-03-26 00:51:38,711 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7605042016806722 [2021-03-26 00:51:38,711 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 543 transitions. [2021-03-26 00:51:38,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 543 transitions. [2021-03-26 00:51:38,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:51:38,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 543 transitions. [2021-03-26 00:51:38,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.5) internal successors, (543), 6 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:38,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:38,714 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 119.0) internal successors, (833), 7 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:38,715 INFO L185 Difference]: Start difference. First operand has 35 places, 25 transitions, 112 flow. Second operand 6 states and 543 transitions. [2021-03-26 00:51:38,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 33 transitions, 196 flow [2021-03-26 00:51:38,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 33 transitions, 190 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 00:51:38,717 INFO L241 Difference]: Finished difference. Result has 39 places, 29 transitions, 174 flow [2021-03-26 00:51:38,717 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=174, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2021-03-26 00:51:38,717 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 8 predicate places. [2021-03-26 00:51:38,718 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:51:38,718 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 29 transitions, 174 flow [2021-03-26 00:51:38,719 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 29 transitions, 174 flow [2021-03-26 00:51:38,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 29 transitions, 174 flow [2021-03-26 00:51:38,725 INFO L129 PetriNetUnfolder]: 20/68 cut-off events. [2021-03-26 00:51:38,725 INFO L130 PetriNetUnfolder]: For 117/120 co-relation queries the response was YES. [2021-03-26 00:51:38,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 68 events. 20/68 cut-off events. For 117/120 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 229 event pairs, 4 based on Foata normal form. 1/66 useless extension candidates. Maximal degree in co-relation 237. Up to 39 conditions per place. [2021-03-26 00:51:38,726 INFO L142 LiptonReduction]: Number of co-enabled transitions 192 [2021-03-26 00:51:38,748 INFO L154 LiptonReduction]: Checked pairs total: 336 [2021-03-26 00:51:38,748 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:51:38,748 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-03-26 00:51:38,752 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 166 flow [2021-03-26 00:51:38,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:38,753 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:51:38,753 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:51:38,753 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:51:38,753 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:51:38,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:51:38,754 INFO L82 PathProgramCache]: Analyzing trace with hash -712095256, now seen corresponding path program 1 times [2021-03-26 00:51:38,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:51:38,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028732863] [2021-03-26 00:51:38,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:51:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:51:38,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:51:38,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:51:38,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:51:38,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:51:38,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:51:38,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:51:38,844 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 00:51:38,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 00:51:38,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:51:38,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:51:38,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:51:38,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028732863] [2021-03-26 00:51:38,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:51:38,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 00:51:38,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656718748] [2021-03-26 00:51:38,853 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:51:38,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:51:38,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:51:38,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:51:38,856 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 119 [2021-03-26 00:51:38,856 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 166 flow. Second operand has 6 states, 6 states have (on average 87.83333333333333) internal successors, (527), 6 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:38,856 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:51:38,857 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 119 [2021-03-26 00:51:38,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:51:38,910 INFO L129 PetriNetUnfolder]: 9/39 cut-off events. [2021-03-26 00:51:38,910 INFO L130 PetriNetUnfolder]: For 108/122 co-relation queries the response was YES. [2021-03-26 00:51:38,910 INFO L84 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 39 events. 9/39 cut-off events. For 108/122 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 68 event pairs, 0 based on Foata normal form. 13/51 useless extension candidates. Maximal degree in co-relation 146. Up to 24 conditions per place. [2021-03-26 00:51:38,911 INFO L132 encePairwiseOnDemand]: 113/119 looper letters, 2 selfloop transitions, 11 changer transitions 3/30 dead transitions. [2021-03-26 00:51:38,911 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 30 transitions, 210 flow [2021-03-26 00:51:38,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:51:38,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:51:38,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 627 transitions. [2021-03-26 00:51:38,913 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7527010804321729 [2021-03-26 00:51:38,913 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 627 transitions. [2021-03-26 00:51:38,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 627 transitions. [2021-03-26 00:51:38,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:51:38,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 627 transitions. [2021-03-26 00:51:38,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 89.57142857142857) internal successors, (627), 7 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:38,917 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:38,917 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:38,918 INFO L185 Difference]: Start difference. First operand has 39 places, 28 transitions, 166 flow. Second operand 7 states and 627 transitions. [2021-03-26 00:51:38,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 30 transitions, 210 flow [2021-03-26 00:51:38,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 30 transitions, 180 flow, removed 13 selfloop flow, removed 4 redundant places. [2021-03-26 00:51:38,922 INFO L241 Difference]: Finished difference. Result has 42 places, 27 transitions, 160 flow [2021-03-26 00:51:38,922 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=160, PETRI_PLACES=42, PETRI_TRANSITIONS=27} [2021-03-26 00:51:38,922 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 11 predicate places. [2021-03-26 00:51:38,922 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:51:38,923 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 27 transitions, 160 flow [2021-03-26 00:51:38,923 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 27 transitions, 160 flow [2021-03-26 00:51:38,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 27 transitions, 160 flow [2021-03-26 00:51:38,927 INFO L129 PetriNetUnfolder]: 7/36 cut-off events. [2021-03-26 00:51:38,928 INFO L130 PetriNetUnfolder]: For 58/61 co-relation queries the response was YES. [2021-03-26 00:51:38,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 36 events. 7/36 cut-off events. For 58/61 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 65 event pairs, 0 based on Foata normal form. 1/36 useless extension candidates. Maximal degree in co-relation 117. Up to 15 conditions per place. [2021-03-26 00:51:38,929 INFO L142 LiptonReduction]: Number of co-enabled transitions 138 [2021-03-26 00:51:39,078 INFO L154 LiptonReduction]: Checked pairs total: 374 [2021-03-26 00:51:39,078 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 00:51:39,078 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 156 [2021-03-26 00:51:39,081 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 24 transitions, 146 flow [2021-03-26 00:51:39,082 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 87.83333333333333) internal successors, (527), 6 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:39,082 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:51:39,082 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:51:39,082 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:51:39,082 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:51:39,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:51:39,083 INFO L82 PathProgramCache]: Analyzing trace with hash 668992154, now seen corresponding path program 1 times [2021-03-26 00:51:39,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:51:39,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485999970] [2021-03-26 00:51:39,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:51:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:51:39,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:51:39,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:51:39,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:51:39,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:51:39,145 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 00:51:39,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:51:39,155 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-03-26 00:51:39,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 00:51:39,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:51:39,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485999970] [2021-03-26 00:51:39,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:51:39,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:51:39,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990327216] [2021-03-26 00:51:39,160 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:51:39,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:51:39,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:51:39,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:51:39,161 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 121 [2021-03-26 00:51:39,162 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 24 transitions, 146 flow. Second operand has 5 states, 5 states have (on average 90.4) internal successors, (452), 5 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:39,162 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:51:39,162 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 121 [2021-03-26 00:51:39,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:51:39,187 INFO L129 PetriNetUnfolder]: 23/72 cut-off events. [2021-03-26 00:51:39,187 INFO L130 PetriNetUnfolder]: For 373/402 co-relation queries the response was YES. [2021-03-26 00:51:39,188 INFO L84 FinitePrefix]: Finished finitePrefix Result has 264 conditions, 72 events. 23/72 cut-off events. For 373/402 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 241 event pairs, 2 based on Foata normal form. 12/79 useless extension candidates. Maximal degree in co-relation 245. Up to 25 conditions per place. [2021-03-26 00:51:39,189 INFO L132 encePairwiseOnDemand]: 116/121 looper letters, 4 selfloop transitions, 5 changer transitions 4/29 dead transitions. [2021-03-26 00:51:39,189 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 29 transitions, 186 flow [2021-03-26 00:51:39,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:51:39,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:51:39,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2021-03-26 00:51:39,190 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.762396694214876 [2021-03-26 00:51:39,191 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 369 transitions. [2021-03-26 00:51:39,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 369 transitions. [2021-03-26 00:51:39,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:51:39,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 369 transitions. [2021-03-26 00:51:39,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:39,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:39,193 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:39,193 INFO L185 Difference]: Start difference. First operand has 38 places, 24 transitions, 146 flow. Second operand 4 states and 369 transitions. [2021-03-26 00:51:39,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 29 transitions, 186 flow [2021-03-26 00:51:39,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 29 transitions, 144 flow, removed 12 selfloop flow, removed 7 redundant places. [2021-03-26 00:51:39,196 INFO L241 Difference]: Finished difference. Result has 36 places, 24 transitions, 122 flow [2021-03-26 00:51:39,196 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=36, PETRI_TRANSITIONS=24} [2021-03-26 00:51:39,196 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places. [2021-03-26 00:51:39,196 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:51:39,196 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 24 transitions, 122 flow [2021-03-26 00:51:39,197 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 24 transitions, 122 flow [2021-03-26 00:51:39,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 24 transitions, 122 flow [2021-03-26 00:51:39,202 INFO L129 PetriNetUnfolder]: 6/28 cut-off events. [2021-03-26 00:51:39,203 INFO L130 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2021-03-26 00:51:39,203 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 28 events. 6/28 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 69. Up to 8 conditions per place. [2021-03-26 00:51:39,203 INFO L142 LiptonReduction]: Number of co-enabled transitions 62 [2021-03-26 00:51:39,253 INFO L154 LiptonReduction]: Checked pairs total: 43 [2021-03-26 00:51:39,254 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:51:39,254 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 58 [2021-03-26 00:51:39,257 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 120 flow [2021-03-26 00:51:39,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 90.4) internal successors, (452), 5 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:39,257 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:51:39,258 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:51:39,258 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:51:39,258 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:51:39,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:51:39,258 INFO L82 PathProgramCache]: Analyzing trace with hash -25540211, now seen corresponding path program 1 times [2021-03-26 00:51:39,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:51:39,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673029125] [2021-03-26 00:51:39,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:51:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:51:39,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:51:39,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:51:39,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:51:39,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:51:39,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:51:39,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:51:39,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:51:39,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673029125] [2021-03-26 00:51:39,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:51:39,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:51:39,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235389549] [2021-03-26 00:51:39,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:51:39,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:51:39,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:51:39,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:51:39,314 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 122 [2021-03-26 00:51:39,314 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:39,314 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:51:39,314 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 122 [2021-03-26 00:51:39,314 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:51:39,338 INFO L129 PetriNetUnfolder]: 12/47 cut-off events. [2021-03-26 00:51:39,338 INFO L130 PetriNetUnfolder]: For 82/84 co-relation queries the response was YES. [2021-03-26 00:51:39,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 47 events. 12/47 cut-off events. For 82/84 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 116 event pairs, 0 based on Foata normal form. 3/49 useless extension candidates. Maximal degree in co-relation 131. Up to 16 conditions per place. [2021-03-26 00:51:39,338 INFO L132 encePairwiseOnDemand]: 119/122 looper letters, 3 selfloop transitions, 1 changer transitions 3/24 dead transitions. [2021-03-26 00:51:39,338 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 24 transitions, 137 flow [2021-03-26 00:51:39,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:51:39,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:51:39,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 394 transitions. [2021-03-26 00:51:39,345 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8073770491803278 [2021-03-26 00:51:39,345 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 394 transitions. [2021-03-26 00:51:39,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 394 transitions. [2021-03-26 00:51:39,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:51:39,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 394 transitions. [2021-03-26 00:51:39,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:39,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:39,347 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:39,347 INFO L185 Difference]: Start difference. First operand has 35 places, 23 transitions, 120 flow. Second operand 4 states and 394 transitions. [2021-03-26 00:51:39,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 24 transitions, 137 flow [2021-03-26 00:51:39,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 24 transitions, 130 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 00:51:39,349 INFO L241 Difference]: Finished difference. Result has 38 places, 21 transitions, 109 flow [2021-03-26 00:51:39,349 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=109, PETRI_PLACES=38, PETRI_TRANSITIONS=21} [2021-03-26 00:51:39,350 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2021-03-26 00:51:39,350 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:51:39,350 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 21 transitions, 109 flow [2021-03-26 00:51:39,350 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 21 transitions, 109 flow [2021-03-26 00:51:39,350 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 21 transitions, 109 flow [2021-03-26 00:51:39,353 INFO L129 PetriNetUnfolder]: 5/25 cut-off events. [2021-03-26 00:51:39,354 INFO L130 PetriNetUnfolder]: For 46/48 co-relation queries the response was YES. [2021-03-26 00:51:39,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 25 events. 5/25 cut-off events. For 46/48 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 26 event pairs, 0 based on Foata normal form. 1/25 useless extension candidates. Maximal degree in co-relation 63. Up to 8 conditions per place. [2021-03-26 00:51:39,354 INFO L142 LiptonReduction]: Number of co-enabled transitions 26 [2021-03-26 00:51:39,533 INFO L154 LiptonReduction]: Checked pairs total: 17 [2021-03-26 00:51:39,534 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 00:51:39,534 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 184 [2021-03-26 00:51:39,534 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 19 transitions, 112 flow [2021-03-26 00:51:39,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:39,535 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:51:39,535 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:51:39,535 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:51:39,535 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:51:39,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:51:39,536 INFO L82 PathProgramCache]: Analyzing trace with hash -853935830, now seen corresponding path program 1 times [2021-03-26 00:51:39,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:51:39,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558296973] [2021-03-26 00:51:39,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:51:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:51:39,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:51:39,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:51:39,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:51:39,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:51:39,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:51:39,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:51:39,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:51:39,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558296973] [2021-03-26 00:51:39,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:51:39,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:51:39,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786259654] [2021-03-26 00:51:39,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:51:39,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:51:39,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:51:39,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:51:39,567 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 127 [2021-03-26 00:51:39,568 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 19 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:39,568 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:51:39,568 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 127 [2021-03-26 00:51:39,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:51:39,586 INFO L129 PetriNetUnfolder]: 5/23 cut-off events. [2021-03-26 00:51:39,586 INFO L130 PetriNetUnfolder]: For 65/69 co-relation queries the response was YES. [2021-03-26 00:51:39,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 23 events. 5/23 cut-off events. For 65/69 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 33 event pairs, 0 based on Foata normal form. 1/23 useless extension candidates. Maximal degree in co-relation 75. Up to 7 conditions per place. [2021-03-26 00:51:39,587 INFO L132 encePairwiseOnDemand]: 122/127 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2021-03-26 00:51:39,587 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 18 transitions, 108 flow [2021-03-26 00:51:39,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:51:39,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:51:39,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 398 transitions. [2021-03-26 00:51:39,589 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7834645669291339 [2021-03-26 00:51:39,589 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 398 transitions. [2021-03-26 00:51:39,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 398 transitions. [2021-03-26 00:51:39,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:51:39,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 398 transitions. [2021-03-26 00:51:39,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:39,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:39,592 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:39,592 INFO L185 Difference]: Start difference. First operand has 35 places, 19 transitions, 112 flow. Second operand 4 states and 398 transitions. [2021-03-26 00:51:39,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 18 transitions, 108 flow [2021-03-26 00:51:39,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 18 transitions, 76 flow, removed 2 selfloop flow, removed 8 redundant places. [2021-03-26 00:51:39,593 INFO L241 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2021-03-26 00:51:39,593 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2021-03-26 00:51:39,593 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -2 predicate places. [2021-03-26 00:51:39,593 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:51:39,593 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 0 transitions, 0 flow [2021-03-26 00:51:39,594 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 0 transitions, 0 flow [2021-03-26 00:51:39,594 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 00:51:39,594 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 00:51:39,594 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:51:39,594 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 00:51:39,594 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 00:51:39,595 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:51:39,595 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:51:39,595 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-03-26 00:51:39,595 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 00:51:39,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:51:39,596 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 00:51:39,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:51:39 BasicIcfg [2021-03-26 00:51:39,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:51:39,600 INFO L168 Benchmark]: Toolchain (without parser) took 5264.48 ms. Allocated memory was 255.9 MB in the beginning and 469.8 MB in the end (delta: 213.9 MB). Free memory was 234.2 MB in the beginning and 414.2 MB in the end (delta: -180.1 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.0 GB. [2021-03-26 00:51:39,600 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:51:39,600 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.20 ms. Allocated memory was 255.9 MB in the beginning and 390.1 MB in the end (delta: 134.2 MB). Free memory was 234.2 MB in the beginning and 352.4 MB in the end (delta: -118.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-26 00:51:39,601 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.82 ms. Allocated memory is still 390.1 MB. Free memory was 352.4 MB in the beginning and 350.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:51:39,601 INFO L168 Benchmark]: Boogie Preprocessor took 27.85 ms. Allocated memory is still 390.1 MB. Free memory was 350.3 MB in the beginning and 348.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:51:39,601 INFO L168 Benchmark]: RCFGBuilder took 443.38 ms. Allocated memory is still 390.1 MB. Free memory was 348.9 MB in the beginning and 326.5 MB in the end (delta: 22.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:51:39,601 INFO L168 Benchmark]: TraceAbstraction took 4365.26 ms. Allocated memory was 390.1 MB in the beginning and 469.8 MB in the end (delta: 79.7 MB). Free memory was 326.5 MB in the beginning and 414.2 MB in the end (delta: -87.7 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:51:39,603 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 390.20 ms. Allocated memory was 255.9 MB in the beginning and 390.1 MB in the end (delta: 134.2 MB). Free memory was 234.2 MB in the beginning and 352.4 MB in the end (delta: -118.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 31.82 ms. Allocated memory is still 390.1 MB. Free memory was 352.4 MB in the beginning and 350.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.85 ms. Allocated memory is still 390.1 MB. Free memory was 350.3 MB in the beginning and 348.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 443.38 ms. Allocated memory is still 390.1 MB. Free memory was 348.9 MB in the beginning and 326.5 MB in the end (delta: 22.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4365.26 ms. Allocated memory was 390.1 MB in the beginning and 469.8 MB in the end (delta: 79.7 MB). Free memory was 326.5 MB in the beginning and 414.2 MB in the end (delta: -87.7 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1613.8ms, 69 PlacesBefore, 31 PlacesAfterwards, 60 TransitionsBefore, 21 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 41 TotalNumberOfCompositions, 1222 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 750, positive: 707, positive conditional: 707, positive unconditional: 0, negative: 43, negative conditional: 43, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 622, positive: 596, positive conditional: 0, positive unconditional: 596, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 622, positive: 596, positive conditional: 0, positive unconditional: 596, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 622, positive: 591, positive conditional: 0, positive unconditional: 591, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 31, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 127, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 750, positive: 111, positive conditional: 111, positive unconditional: 0, negative: 17, negative conditional: 17, negative unconditional: 0, unknown: 622, unknown conditional: 622, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 38, Positive conditional cache size: 38, Positive unconditional cache size: 0, Negative cache size: 7, Negative conditional cache size: 7, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 311.3ms, 35 PlacesBefore, 31 PlacesAfterwards, 23 TransitionsBefore, 21 TransitionsAfterwards, 150 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 366 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 267, positive: 237, positive conditional: 237, positive unconditional: 0, negative: 30, negative conditional: 30, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 60, positive: 55, positive conditional: 9, positive unconditional: 46, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 60, positive: 55, positive conditional: 9, positive unconditional: 46, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 60, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 267, positive: 182, positive conditional: 182, positive unconditional: 0, negative: 25, negative conditional: 25, negative unconditional: 0, unknown: 60, unknown conditional: 60, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 105, Positive cache size: 93, Positive conditional cache size: 93, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 497.2ms, 36 PlacesBefore, 35 PlacesAfterwards, 27 TransitionsBefore, 25 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 305 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 193, positive: 175, positive conditional: 175, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 41, positive: 41, positive conditional: 22, positive unconditional: 19, 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: 41, positive: 41, positive conditional: 22, positive unconditional: 19, 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: 41, positive: 41, positive conditional: 0, positive unconditional: 41, 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: 193, positive: 134, positive conditional: 134, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 41, unknown conditional: 41, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 122, Positive cache size: 113, Positive conditional cache size: 113, Positive unconditional cache size: 0, Negative cache size: 9, Negative conditional cache size: 9, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.2ms, 39 PlacesBefore, 39 PlacesAfterwards, 29 TransitionsBefore, 28 TransitionsAfterwards, 192 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 336 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 183, positive: 163, positive conditional: 163, positive unconditional: 0, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 32, positive: 28, positive conditional: 27, positive unconditional: 1, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 32, positive: 28, positive conditional: 27, positive unconditional: 1, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 32, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 15, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 183, positive: 135, positive conditional: 135, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 32, unknown conditional: 32, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 137, Positive cache size: 124, Positive conditional cache size: 124, Positive unconditional cache size: 0, Negative cache size: 13, Negative conditional cache size: 13, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 155.4ms, 42 PlacesBefore, 38 PlacesAfterwards, 27 TransitionsBefore, 24 TransitionsAfterwards, 138 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 374 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 264, positive: 234, positive conditional: 234, positive unconditional: 0, negative: 30, negative conditional: 30, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 32, positive: 32, positive conditional: 24, positive unconditional: 8, 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: 32, positive: 32, positive conditional: 24, positive unconditional: 8, 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: 32, positive: 32, positive conditional: 0, positive unconditional: 32, 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: 264, positive: 202, positive conditional: 202, positive unconditional: 0, negative: 30, negative conditional: 30, negative unconditional: 0, unknown: 32, unknown conditional: 32, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 132, Positive cache size: 127, Positive conditional cache size: 127, Positive unconditional cache size: 0, Negative cache size: 5, Negative conditional cache size: 5, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 57.0ms, 36 PlacesBefore, 35 PlacesAfterwards, 24 TransitionsBefore, 23 TransitionsAfterwards, 62 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 43 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 28, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 22, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 22, negative conditional: 22, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 28, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 18, unknown conditional: 18, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 76, Positive conditional cache size: 76, Positive unconditional cache size: 0, Negative cache size: 5, Negative conditional cache size: 5, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 183.5ms, 38 PlacesBefore, 35 PlacesAfterwards, 21 TransitionsBefore, 19 TransitionsAfterwards, 26 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 5 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 17 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17, positive: 17, positive conditional: 17, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 8, 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: 10, positive: 10, positive conditional: 8, 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: 10, positive: 10, positive conditional: 0, positive unconditional: 10, 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: 17, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 4, Positive conditional cache size: 4, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.9ms, 29 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 4, Positive conditional cache size: 4, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4244.8ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 442.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1734.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 35 SDtfs, 20 SDslu, 32 SDs, 0 SdLazy, 110 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 98.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 99.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred in iteration=3, InterpolantAutomatonStates: 35, 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: 19.1ms SsaConstructionTime, 199.1ms SatisfiabilityAnalysisTime, 418.3ms InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 305 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...