/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/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:56:30,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:56:30,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:56:30,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:56:30,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:56:30,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:56:30,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:56:30,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:56:30,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:56:30,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:56:30,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:56:30,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:56:30,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:56:30,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:56:30,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:56:30,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:56:30,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:56:30,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:56:30,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:56:30,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:56:30,298 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 00:56:30,356 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:56:30,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:56:30,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:56:30,360 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:56:30,361 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:56:30,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:56:30,362 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:56:30,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:56:30,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:56:30,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:56:30,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:56:30,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:56:30,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:56:30,364 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:56:30,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:56:30,365 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:56:30,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:56:30,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:56:30,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:56:30,367 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:56:30,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:56:30,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:56:30,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:56:30,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:56:30,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:56:30,369 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:56:30,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:56:30,369 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:56:30,369 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:56:30,369 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:56:30,370 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:56:30,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:56:30,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:56:30,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:56:30,905 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:56:30,906 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:56:30,907 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2021-04-29 00:56:30,987 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e93bd1cf/05f442dcfc404337818df65034b6df17/FLAGc4a4a9236 [2021-04-29 00:56:31,707 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:56:31,708 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2021-04-29 00:56:31,736 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e93bd1cf/05f442dcfc404337818df65034b6df17/FLAGc4a4a9236 [2021-04-29 00:56:31,930 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e93bd1cf/05f442dcfc404337818df65034b6df17 [2021-04-29 00:56:31,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:56:31,992 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:56:31,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:56:31,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:56:32,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:56:32,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:56:31" (1/1) ... [2021-04-29 00:56:32,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e9191ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:32, skipping insertion in model container [2021-04-29 00:56:32,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:56:31" (1/1) ... [2021-04-29 00:56:32,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:56:32,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:56:32,369 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/thin002_tso.oepc.i[950,963] [2021-04-29 00:56:32,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:56:32,674 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:56:32,689 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/thin002_tso.oepc.i[950,963] [2021-04-29 00:56:32,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:56:32,828 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:56:32,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:32 WrapperNode [2021-04-29 00:56:32,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:56:32,830 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:56:32,830 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:56:32,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:56:32,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:32" (1/1) ... [2021-04-29 00:56:32,858 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:32" (1/1) ... [2021-04-29 00:56:32,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:56:32,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:56:32,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:56:32,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:56:32,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:32" (1/1) ... [2021-04-29 00:56:32,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:32" (1/1) ... [2021-04-29 00:56:32,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:32" (1/1) ... [2021-04-29 00:56:32,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:32" (1/1) ... [2021-04-29 00:56:32,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:32" (1/1) ... [2021-04-29 00:56:32,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:32" (1/1) ... [2021-04-29 00:56:32,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:32" (1/1) ... [2021-04-29 00:56:32,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:56:32,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:56:32,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:56:32,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:56:32,964 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:56:33,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:56:33,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:56:33,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:56:33,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:56:33,084 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:56:33,084 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:56:33,085 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:56:33,086 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:56:33,086 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:56:33,087 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:56:33,087 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-29 00:56:33,087 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-29 00:56:33,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:56:33,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:56:33,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:56:33,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:56:33,090 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:56:33,513 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:56:33,514 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:56:33,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:56:33 BoogieIcfgContainer [2021-04-29 00:56:33,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:56:33,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:56:33,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:56:33,522 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:56:33,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:56:31" (1/3) ... [2021-04-29 00:56:33,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40eef685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:56:33, skipping insertion in model container [2021-04-29 00:56:33,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:56:32" (2/3) ... [2021-04-29 00:56:33,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40eef685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:56:33, skipping insertion in model container [2021-04-29 00:56:33,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:56:33" (3/3) ... [2021-04-29 00:56:33,526 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2021-04-29 00:56:33,533 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:56:33,539 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:56:33,540 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:56:33,575 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,575 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,576 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,576 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,576 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,576 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,577 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,577 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,577 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,578 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,578 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,578 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,579 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,579 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,580 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,580 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,580 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,581 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,581 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,581 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,582 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,582 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,582 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,583 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,583 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,583 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,584 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,584 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,584 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,584 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,585 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,585 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,586 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,586 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,586 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,587 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,587 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,587 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,588 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,588 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,588 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,588 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,589 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,589 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,589 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,590 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,590 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,590 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,593 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,593 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,594 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,594 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,602 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,603 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,605 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,605 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,613 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,613 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,613 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,614 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,624 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,624 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,624 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,625 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:56:33,632 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:56:33,658 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-04-29 00:56:33,688 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:56:33,688 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:56:33,689 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:56:33,689 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:56:33,689 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:56:33,689 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:56:33,689 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:56:33,689 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:56:33,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 91 transitions, 202 flow [2021-04-29 00:56:33,781 INFO L129 PetriNetUnfolder]: 2/87 cut-off events. [2021-04-29 00:56:33,782 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:56:33,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 87 events. 2/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2021-04-29 00:56:33,791 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 91 transitions, 202 flow [2021-04-29 00:56:33,805 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 73 transitions, 158 flow [2021-04-29 00:56:33,807 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:56:33,827 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 73 transitions, 158 flow [2021-04-29 00:56:33,835 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 73 transitions, 158 flow [2021-04-29 00:56:33,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 73 transitions, 158 flow [2021-04-29 00:56:33,892 INFO L129 PetriNetUnfolder]: 1/73 cut-off events. [2021-04-29 00:56:33,893 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:56:33,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 73 events. 1/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 65 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-29 00:56:33,900 INFO L146 LiptonReduction]: Number of co-enabled transitions 1392 [2021-04-29 00:56:38,980 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:56:39,517 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:56:39,703 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:56:39,857 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:56:40,021 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:56:40,199 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:56:41,817 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:56:42,007 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:56:42,445 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:56:42,605 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:56:42,814 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:56:43,025 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:56:45,347 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:56:45,500 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:56:45,957 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:56:46,146 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:56:46,344 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:56:46,572 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:56:46,845 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-29 00:56:47,124 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-29 00:56:47,740 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-04-29 00:56:47,851 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-29 00:56:48,106 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-04-29 00:56:48,217 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-29 00:56:48,372 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:56:48,608 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:56:48,844 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:56:49,084 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:56:49,339 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-29 00:56:49,628 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-29 00:56:49,911 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-29 00:56:50,189 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-29 00:56:50,483 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-29 00:56:50,779 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-29 00:56:51,059 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-04-29 00:56:51,322 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2021-04-29 00:56:51,580 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-04-29 00:56:51,846 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-04-29 00:56:52,165 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2021-04-29 00:56:52,278 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 00:56:52,528 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2021-04-29 00:56:52,639 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 00:56:52,835 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-29 00:56:52,941 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-29 00:56:53,135 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2021-04-29 00:56:53,299 INFO L158 LiptonReduction]: Checked pairs total: 12552 [2021-04-29 00:56:53,299 INFO L160 LiptonReduction]: Total number of compositions: 141 [2021-04-29 00:56:53,304 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19499 [2021-04-29 00:56:53,329 INFO L129 PetriNetUnfolder]: 0/85 cut-off events. [2021-04-29 00:56:53,329 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:56:53,330 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:56:53,331 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:56:53,331 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:56:53,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:56:53,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1140806113, now seen corresponding path program 1 times [2021-04-29 00:56:53,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:56:53,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240482425] [2021-04-29 00:56:53,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:56:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:56:53,672 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:56:53,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:56:53,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:56:53,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240482425] [2021-04-29 00:56:53,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:56:53,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:56:53,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795466221] [2021-04-29 00:56:53,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:56:53,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:56:53,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:56:53,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:56:53,725 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 232 [2021-04-29 00:56:53,730 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 91 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:53,730 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:56:53,730 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 232 [2021-04-29 00:56:53,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:56:53,943 INFO L129 PetriNetUnfolder]: 233/870 cut-off events. [2021-04-29 00:56:53,943 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:56:53,949 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1261 conditions, 870 events. 233/870 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 8014 event pairs, 70 based on Foata normal form. 0/488 useless extension candidates. Maximal degree in co-relation 1198. Up to 354 conditions per place. [2021-04-29 00:56:53,953 INFO L132 encePairwiseOnDemand]: 207/232 looper letters, 5 selfloop transitions, 5 changer transitions 47/100 dead transitions. [2021-04-29 00:56:53,953 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 100 transitions, 290 flow [2021-04-29 00:56:53,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:56:53,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:56:53,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 464 transitions. [2021-04-29 00:56:53,974 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2021-04-29 00:56:53,975 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 464 transitions. [2021-04-29 00:56:53,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 464 transitions. [2021-04-29 00:56:53,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:56:53,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 464 transitions. [2021-04-29 00:56:53,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:53,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:53,998 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:54,001 INFO L185 Difference]: Start difference. First operand has 104 places, 91 transitions, 194 flow. Second operand 3 states and 464 transitions. [2021-04-29 00:56:54,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 100 transitions, 290 flow [2021-04-29 00:56:54,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 100 transitions, 286 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-29 00:56:54,011 INFO L241 Difference]: Finished difference. Result has 103 places, 53 transitions, 139 flow [2021-04-29 00:56:54,014 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=139, PETRI_PLACES=103, PETRI_TRANSITIONS=53} [2021-04-29 00:56:54,015 INFO L343 CegarLoopForPetriNet]: 104 programPoint places, -1 predicate places. [2021-04-29 00:56:54,015 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:56:54,016 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 53 transitions, 139 flow [2021-04-29 00:56:54,016 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 53 transitions, 139 flow [2021-04-29 00:56:54,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 53 transitions, 139 flow [2021-04-29 00:56:54,041 INFO L129 PetriNetUnfolder]: 45/203 cut-off events. [2021-04-29 00:56:54,041 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:56:54,043 INFO L84 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 203 events. 45/203 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1193 event pairs, 23 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 286. Up to 76 conditions per place. [2021-04-29 00:56:54,049 INFO L146 LiptonReduction]: Number of co-enabled transitions 1460 [2021-04-29 00:56:54,077 INFO L158 LiptonReduction]: Checked pairs total: 904 [2021-04-29 00:56:54,077 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:56:54,077 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 62 [2021-04-29 00:56:54,080 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 53 transitions, 139 flow [2021-04-29 00:56:54,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:54,081 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:56:54,081 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:56:54,081 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:56:54,081 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:56:54,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:56:54,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1609389755, now seen corresponding path program 1 times [2021-04-29 00:56:54,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:56:54,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928432453] [2021-04-29 00:56:54,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:56:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:56:54,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:56:54,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:56:54,182 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:56:54,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:56:54,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:56:54,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928432453] [2021-04-29 00:56:54,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:56:54,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:56:54,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576209559] [2021-04-29 00:56:54,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:56:54,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:56:54,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:56:54,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:56:54,201 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 232 [2021-04-29 00:56:54,202 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 53 transitions, 139 flow. Second operand has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:54,202 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:56:54,203 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 232 [2021-04-29 00:56:54,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:56:54,240 INFO L129 PetriNetUnfolder]: 29/140 cut-off events. [2021-04-29 00:56:54,240 INFO L130 PetriNetUnfolder]: For 22/142 co-relation queries the response was YES. [2021-04-29 00:56:54,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 140 events. 29/140 cut-off events. For 22/142 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 716 event pairs, 1 based on Foata normal form. 1/89 useless extension candidates. Maximal degree in co-relation 252. Up to 53 conditions per place. [2021-04-29 00:56:54,243 INFO L132 encePairwiseOnDemand]: 229/232 looper letters, 10 selfloop transitions, 3 changer transitions 0/56 dead transitions. [2021-04-29 00:56:54,244 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 56 transitions, 177 flow [2021-04-29 00:56:54,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:56:54,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:56:54,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 433 transitions. [2021-04-29 00:56:54,247 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6221264367816092 [2021-04-29 00:56:54,247 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 433 transitions. [2021-04-29 00:56:54,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 433 transitions. [2021-04-29 00:56:54,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:56:54,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 433 transitions. [2021-04-29 00:56:54,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:54,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:54,254 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:54,254 INFO L185 Difference]: Start difference. First operand has 61 places, 53 transitions, 139 flow. Second operand 3 states and 433 transitions. [2021-04-29 00:56:54,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 56 transitions, 177 flow [2021-04-29 00:56:54,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 56 transitions, 172 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:56:54,257 INFO L241 Difference]: Finished difference. Result has 63 places, 53 transitions, 145 flow [2021-04-29 00:56:54,257 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=63, PETRI_TRANSITIONS=53} [2021-04-29 00:56:54,258 INFO L343 CegarLoopForPetriNet]: 104 programPoint places, -41 predicate places. [2021-04-29 00:56:54,258 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:56:54,258 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 53 transitions, 145 flow [2021-04-29 00:56:54,259 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 53 transitions, 145 flow [2021-04-29 00:56:54,259 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 53 transitions, 145 flow [2021-04-29 00:56:54,276 INFO L129 PetriNetUnfolder]: 29/156 cut-off events. [2021-04-29 00:56:54,277 INFO L130 PetriNetUnfolder]: For 13/20 co-relation queries the response was YES. [2021-04-29 00:56:54,278 INFO L84 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 156 events. 29/156 cut-off events. For 13/20 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 827 event pairs, 11 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 236. Up to 53 conditions per place. [2021-04-29 00:56:54,282 INFO L146 LiptonReduction]: Number of co-enabled transitions 1458 [2021-04-29 00:56:54,297 INFO L158 LiptonReduction]: Checked pairs total: 904 [2021-04-29 00:56:54,297 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:56:54,297 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-04-29 00:56:54,299 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 53 transitions, 145 flow [2021-04-29 00:56:54,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 141.75) internal successors, (567), 4 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:54,300 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:56:54,300 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:56:54,301 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:56:54,301 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:56:54,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:56:54,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1005220594, now seen corresponding path program 1 times [2021-04-29 00:56:54,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:56:54,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085600652] [2021-04-29 00:56:54,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:56:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:56:54,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:56:54,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:56:54,465 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:56:54,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:56:54,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:56:54,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085600652] [2021-04-29 00:56:54,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:56:54,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:56:54,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354233973] [2021-04-29 00:56:54,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:56:54,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:56:54,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:56:54,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:56:54,484 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 232 [2021-04-29 00:56:54,485 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 53 transitions, 145 flow. Second operand has 4 states, 4 states have (on average 132.75) internal successors, (531), 4 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:54,485 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:56:54,485 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 232 [2021-04-29 00:56:54,485 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:56:54,557 INFO L129 PetriNetUnfolder]: 52/229 cut-off events. [2021-04-29 00:56:54,557 INFO L130 PetriNetUnfolder]: For 79/159 co-relation queries the response was YES. [2021-04-29 00:56:54,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 458 conditions, 229 events. 52/229 cut-off events. For 79/159 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1426 event pairs, 3 based on Foata normal form. 21/172 useless extension candidates. Maximal degree in co-relation 446. Up to 82 conditions per place. [2021-04-29 00:56:54,561 INFO L132 encePairwiseOnDemand]: 225/232 looper letters, 9 selfloop transitions, 12 changer transitions 0/63 dead transitions. [2021-04-29 00:56:54,561 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 63 transitions, 230 flow [2021-04-29 00:56:54,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:56:54,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:56:54,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 680 transitions. [2021-04-29 00:56:54,564 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5862068965517241 [2021-04-29 00:56:54,565 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 680 transitions. [2021-04-29 00:56:54,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 680 transitions. [2021-04-29 00:56:54,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:56:54,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 680 transitions. [2021-04-29 00:56:54,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 136.0) internal successors, (680), 5 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:54,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:54,573 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 232.0) internal successors, (1392), 6 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:54,573 INFO L185 Difference]: Start difference. First operand has 63 places, 53 transitions, 145 flow. Second operand 5 states and 680 transitions. [2021-04-29 00:56:54,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 63 transitions, 230 flow [2021-04-29 00:56:54,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 63 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:56:54,577 INFO L241 Difference]: Finished difference. Result has 68 places, 60 transitions, 226 flow [2021-04-29 00:56:54,578 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=226, PETRI_PLACES=68, PETRI_TRANSITIONS=60} [2021-04-29 00:56:54,578 INFO L343 CegarLoopForPetriNet]: 104 programPoint places, -36 predicate places. [2021-04-29 00:56:54,578 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:56:54,578 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 60 transitions, 226 flow [2021-04-29 00:56:54,579 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 60 transitions, 226 flow [2021-04-29 00:56:54,579 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 60 transitions, 226 flow [2021-04-29 00:56:54,605 INFO L129 PetriNetUnfolder]: 35/202 cut-off events. [2021-04-29 00:56:54,606 INFO L130 PetriNetUnfolder]: For 97/171 co-relation queries the response was YES. [2021-04-29 00:56:54,607 INFO L84 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 202 events. 35/202 cut-off events. For 97/171 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1337 event pairs, 7 based on Foata normal form. 4/129 useless extension candidates. Maximal degree in co-relation 429. Up to 67 conditions per place. [2021-04-29 00:56:54,614 INFO L146 LiptonReduction]: Number of co-enabled transitions 1788 [2021-04-29 00:56:54,636 INFO L158 LiptonReduction]: Checked pairs total: 797 [2021-04-29 00:56:54,636 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:56:54,636 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 58 [2021-04-29 00:56:54,639 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 60 transitions, 226 flow [2021-04-29 00:56:54,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 132.75) internal successors, (531), 4 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:54,639 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:56:54,640 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:56:54,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:56:54,640 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:56:54,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:56:54,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1097039684, now seen corresponding path program 1 times [2021-04-29 00:56:54,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:56:54,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858430382] [2021-04-29 00:56:54,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:56:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:56:54,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:56:54,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:56:54,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:56:54,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:56:54,709 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:56:54,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:56:54,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:56:54,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858430382] [2021-04-29 00:56:54,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:56:54,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:56:54,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141208935] [2021-04-29 00:56:54,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:56:54,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:56:54,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:56:54,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:56:54,727 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 232 [2021-04-29 00:56:54,728 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 60 transitions, 226 flow. Second operand has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:54,729 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:56:54,729 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 232 [2021-04-29 00:56:54,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:56:54,790 INFO L129 PetriNetUnfolder]: 39/225 cut-off events. [2021-04-29 00:56:54,790 INFO L130 PetriNetUnfolder]: For 248/402 co-relation queries the response was YES. [2021-04-29 00:56:54,792 INFO L84 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 225 events. 39/225 cut-off events. For 248/402 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1500 event pairs, 2 based on Foata normal form. 16/155 useless extension candidates. Maximal degree in co-relation 545. Up to 70 conditions per place. [2021-04-29 00:56:54,793 INFO L132 encePairwiseOnDemand]: 228/232 looper letters, 11 selfloop transitions, 3 changer transitions 8/64 dead transitions. [2021-04-29 00:56:54,794 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 64 transitions, 302 flow [2021-04-29 00:56:54,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:56:54,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:56:54,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 542 transitions. [2021-04-29 00:56:54,797 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.584051724137931 [2021-04-29 00:56:54,797 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 542 transitions. [2021-04-29 00:56:54,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 542 transitions. [2021-04-29 00:56:54,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:56:54,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 542 transitions. [2021-04-29 00:56:54,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 135.5) internal successors, (542), 4 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:54,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 232.0) internal successors, (1160), 5 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:54,804 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 232.0) internal successors, (1160), 5 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:54,804 INFO L185 Difference]: Start difference. First operand has 68 places, 60 transitions, 226 flow. Second operand 4 states and 542 transitions. [2021-04-29 00:56:54,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 64 transitions, 302 flow [2021-04-29 00:56:54,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 64 transitions, 294 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-04-29 00:56:54,809 INFO L241 Difference]: Finished difference. Result has 72 places, 52 transitions, 180 flow [2021-04-29 00:56:54,809 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=180, PETRI_PLACES=72, PETRI_TRANSITIONS=52} [2021-04-29 00:56:54,810 INFO L343 CegarLoopForPetriNet]: 104 programPoint places, -32 predicate places. [2021-04-29 00:56:54,810 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:56:54,810 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 52 transitions, 180 flow [2021-04-29 00:56:54,810 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 52 transitions, 180 flow [2021-04-29 00:56:54,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 52 transitions, 180 flow [2021-04-29 00:56:54,825 INFO L129 PetriNetUnfolder]: 13/100 cut-off events. [2021-04-29 00:56:54,826 INFO L130 PetriNetUnfolder]: For 69/81 co-relation queries the response was YES. [2021-04-29 00:56:54,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 100 events. 13/100 cut-off events. For 69/81 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 482 event pairs, 3 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 214. Up to 29 conditions per place. [2021-04-29 00:56:54,830 INFO L146 LiptonReduction]: Number of co-enabled transitions 1396 [2021-04-29 00:56:54,839 INFO L158 LiptonReduction]: Checked pairs total: 675 [2021-04-29 00:56:54,840 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:56:54,840 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-04-29 00:56:54,842 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 52 transitions, 180 flow [2021-04-29 00:56:54,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 132.8) internal successors, (664), 5 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:54,843 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:56:54,843 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:56:54,843 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:56:54,843 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:56:54,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:56:54,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1330743780, now seen corresponding path program 1 times [2021-04-29 00:56:54,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:56:54,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20449799] [2021-04-29 00:56:54,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:56:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:56:54,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:56:54,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:56:54,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:56:54,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:56:54,906 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:56:54,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:56:54,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:56:54,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20449799] [2021-04-29 00:56:54,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:56:54,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:56:54,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531654987] [2021-04-29 00:56:54,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:56:54,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:56:54,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:56:54,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:56:54,929 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 232 [2021-04-29 00:56:54,930 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 52 transitions, 180 flow. Second operand has 5 states, 5 states have (on average 131.8) internal successors, (659), 5 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:54,930 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:56:54,930 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 232 [2021-04-29 00:56:54,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:56:54,976 INFO L129 PetriNetUnfolder]: 17/130 cut-off events. [2021-04-29 00:56:54,976 INFO L130 PetriNetUnfolder]: For 197/224 co-relation queries the response was YES. [2021-04-29 00:56:54,977 INFO L84 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 130 events. 17/130 cut-off events. For 197/224 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 691 event pairs, 2 based on Foata normal form. 7/85 useless extension candidates. Maximal degree in co-relation 308. Up to 35 conditions per place. [2021-04-29 00:56:54,978 INFO L132 encePairwiseOnDemand]: 228/232 looper letters, 8 selfloop transitions, 3 changer transitions 5/57 dead transitions. [2021-04-29 00:56:54,979 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 57 transitions, 252 flow [2021-04-29 00:56:54,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:56:54,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:56:54,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 538 transitions. [2021-04-29 00:56:54,982 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5797413793103449 [2021-04-29 00:56:54,982 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 538 transitions. [2021-04-29 00:56:54,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 538 transitions. [2021-04-29 00:56:54,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:56:54,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 538 transitions. [2021-04-29 00:56:54,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 134.5) internal successors, (538), 4 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:54,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 232.0) internal successors, (1160), 5 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:54,988 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 232.0) internal successors, (1160), 5 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:54,989 INFO L185 Difference]: Start difference. First operand has 71 places, 52 transitions, 180 flow. Second operand 4 states and 538 transitions. [2021-04-29 00:56:54,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 57 transitions, 252 flow [2021-04-29 00:56:54,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 57 transitions, 190 flow, removed 17 selfloop flow, removed 9 redundant places. [2021-04-29 00:56:54,993 INFO L241 Difference]: Finished difference. Result has 67 places, 50 transitions, 144 flow [2021-04-29 00:56:54,993 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=144, PETRI_PLACES=67, PETRI_TRANSITIONS=50} [2021-04-29 00:56:54,993 INFO L343 CegarLoopForPetriNet]: 104 programPoint places, -37 predicate places. [2021-04-29 00:56:54,993 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:56:54,994 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 50 transitions, 144 flow [2021-04-29 00:56:54,994 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 50 transitions, 144 flow [2021-04-29 00:56:54,994 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 50 transitions, 144 flow [2021-04-29 00:56:55,004 INFO L129 PetriNetUnfolder]: 4/72 cut-off events. [2021-04-29 00:56:55,004 INFO L130 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2021-04-29 00:56:55,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 72 events. 4/72 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 261 event pairs, 3 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 104. Up to 14 conditions per place. [2021-04-29 00:56:55,007 INFO L146 LiptonReduction]: Number of co-enabled transitions 1238 [2021-04-29 00:56:55,013 INFO L158 LiptonReduction]: Checked pairs total: 511 [2021-04-29 00:56:55,013 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:56:55,014 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-04-29 00:56:55,016 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 50 transitions, 144 flow [2021-04-29 00:56:55,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 131.8) internal successors, (659), 5 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:55,017 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:56:55,017 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:56:55,017 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:56:55,017 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:56:55,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:56:55,018 INFO L82 PathProgramCache]: Analyzing trace with hash -644799539, now seen corresponding path program 1 times [2021-04-29 00:56:55,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:56:55,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455184177] [2021-04-29 00:56:55,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:56:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:56:55,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:56:55,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:56:55,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:56:55,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:56:55,074 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:56:55,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:56:55,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:56:55,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455184177] [2021-04-29 00:56:55,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:56:55,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:56:55,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703071492] [2021-04-29 00:56:55,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:56:55,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:56:55,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:56:55,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:56:55,092 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 232 [2021-04-29 00:56:55,093 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 50 transitions, 144 flow. Second operand has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:55,093 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:56:55,093 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 232 [2021-04-29 00:56:55,093 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:56:55,130 INFO L129 PetriNetUnfolder]: 5/95 cut-off events. [2021-04-29 00:56:55,130 INFO L130 PetriNetUnfolder]: For 50/58 co-relation queries the response was YES. [2021-04-29 00:56:55,131 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 95 events. 5/95 cut-off events. For 50/58 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 458 event pairs, 0 based on Foata normal form. 4/58 useless extension candidates. Maximal degree in co-relation 159. Up to 17 conditions per place. [2021-04-29 00:56:55,131 INFO L132 encePairwiseOnDemand]: 228/232 looper letters, 4 selfloop transitions, 3 changer transitions 25/55 dead transitions. [2021-04-29 00:56:55,132 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 55 transitions, 202 flow [2021-04-29 00:56:55,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:56:55,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:56:55,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 538 transitions. [2021-04-29 00:56:55,135 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5797413793103449 [2021-04-29 00:56:55,135 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 538 transitions. [2021-04-29 00:56:55,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 538 transitions. [2021-04-29 00:56:55,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:56:55,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 538 transitions. [2021-04-29 00:56:55,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 134.5) internal successors, (538), 4 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:55,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 232.0) internal successors, (1160), 5 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:55,140 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 232.0) internal successors, (1160), 5 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:55,140 INFO L185 Difference]: Start difference. First operand has 66 places, 50 transitions, 144 flow. Second operand 4 states and 538 transitions. [2021-04-29 00:56:55,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 55 transitions, 202 flow [2021-04-29 00:56:55,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 55 transitions, 186 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-04-29 00:56:55,143 INFO L241 Difference]: Finished difference. Result has 67 places, 30 transitions, 102 flow [2021-04-29 00:56:55,143 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=102, PETRI_PLACES=67, PETRI_TRANSITIONS=30} [2021-04-29 00:56:55,144 INFO L343 CegarLoopForPetriNet]: 104 programPoint places, -37 predicate places. [2021-04-29 00:56:55,144 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:56:55,144 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 30 transitions, 102 flow [2021-04-29 00:56:55,144 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 30 transitions, 102 flow [2021-04-29 00:56:55,145 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 30 transitions, 102 flow [2021-04-29 00:56:55,149 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2021-04-29 00:56:55,149 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-04-29 00:56:55,150 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 30 events. 0/30 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 45 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-04-29 00:56:55,150 INFO L146 LiptonReduction]: Number of co-enabled transitions 366 [2021-04-29 00:56:55,374 INFO L158 LiptonReduction]: Checked pairs total: 277 [2021-04-29 00:56:55,374 INFO L160 LiptonReduction]: Total number of compositions: 3 [2021-04-29 00:56:55,375 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 231 [2021-04-29 00:56:55,379 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 30 transitions, 102 flow [2021-04-29 00:56:55,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:55,380 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:56:55,380 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:56:55,380 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:56:55,382 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:56:55,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:56:55,383 INFO L82 PathProgramCache]: Analyzing trace with hash 259450575, now seen corresponding path program 1 times [2021-04-29 00:56:55,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:56:55,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216531837] [2021-04-29 00:56:55,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:56:55,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:56:55,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:56:55,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:56:55,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:56:55,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:56:55,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:56:55,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216531837] [2021-04-29 00:56:55,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:56:55,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:56:55,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764619983] [2021-04-29 00:56:55,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:56:55,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:56:55,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:56:55,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:56:55,508 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 235 [2021-04-29 00:56:55,509 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 30 transitions, 102 flow. Second operand has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:55,510 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:56:55,510 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 235 [2021-04-29 00:56:55,510 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:56:55,531 INFO L129 PetriNetUnfolder]: 0/29 cut-off events. [2021-04-29 00:56:55,531 INFO L130 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2021-04-29 00:56:55,531 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 29 events. 0/29 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 5/25 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-04-29 00:56:55,532 INFO L132 encePairwiseOnDemand]: 229/235 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2021-04-29 00:56:55,532 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 29 transitions, 104 flow [2021-04-29 00:56:55,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:56:55,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:56:55,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 608 transitions. [2021-04-29 00:56:55,535 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6468085106382979 [2021-04-29 00:56:55,535 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 608 transitions. [2021-04-29 00:56:55,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 608 transitions. [2021-04-29 00:56:55,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:56:55,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 608 transitions. [2021-04-29 00:56:55,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 152.0) internal successors, (608), 4 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:55,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 235.0) internal successors, (1175), 5 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:55,541 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 235.0) internal successors, (1175), 5 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:55,541 INFO L185 Difference]: Start difference. First operand has 49 places, 30 transitions, 102 flow. Second operand 4 states and 608 transitions. [2021-04-29 00:56:55,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 29 transitions, 104 flow [2021-04-29 00:56:55,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 29 transitions, 84 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-04-29 00:56:55,543 INFO L241 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2021-04-29 00:56:55,543 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=235, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2021-04-29 00:56:55,543 INFO L343 CegarLoopForPetriNet]: 104 programPoint places, -60 predicate places. [2021-04-29 00:56:55,544 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:56:55,544 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 0 transitions, 0 flow [2021-04-29 00:56:55,544 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 0 transitions, 0 flow [2021-04-29 00:56:55,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:56:55,544 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:56:55,545 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:56:55,545 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. [2021-04-29 00:56:55,545 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:56:55,545 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:56:55,545 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:56:55,545 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:56:55,547 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:56:55,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 150.75) internal successors, (603), 4 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:56:55,548 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:56:55,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:56:55 BasicIcfg [2021-04-29 00:56:55,553 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:56:55,554 INFO L168 Benchmark]: Toolchain (without parser) took 23618.49 ms. Allocated memory was 310.4 MB in the beginning and 539.0 MB in the end (delta: 228.6 MB). Free memory was 283.5 MB in the beginning and 493.0 MB in the end (delta: -209.5 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:56:55,555 INFO L168 Benchmark]: CDTParser took 1.04 ms. Allocated memory is still 310.4 MB. Free memory was 281.4 MB in the beginning and 281.2 MB in the end (delta: 137.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:56:55,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 833.45 ms. Allocated memory is still 310.4 MB. Free memory was 280.3 MB in the beginning and 280.6 MB in the end (delta: -213.1 kB). Peak memory consumption was 25.9 MB. Max. memory is 16.0 GB. [2021-04-29 00:56:55,556 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.26 ms. Allocated memory is still 310.4 MB. Free memory was 280.6 MB in the beginning and 278.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:56:55,557 INFO L168 Benchmark]: Boogie Preprocessor took 62.32 ms. Allocated memory is still 310.4 MB. Free memory was 278.5 MB in the beginning and 277.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:56:55,557 INFO L168 Benchmark]: RCFGBuilder took 556.39 ms. Allocated memory is still 310.4 MB. Free memory was 277.4 MB in the beginning and 251.2 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-04-29 00:56:55,558 INFO L168 Benchmark]: TraceAbstraction took 22035.35 ms. Allocated memory was 310.4 MB in the beginning and 539.0 MB in the end (delta: 228.6 MB). Free memory was 251.2 MB in the beginning and 493.0 MB in the end (delta: -241.8 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:56:55,560 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.04 ms. Allocated memory is still 310.4 MB. Free memory was 281.4 MB in the beginning and 281.2 MB in the end (delta: 137.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 833.45 ms. Allocated memory is still 310.4 MB. Free memory was 280.3 MB in the beginning and 280.6 MB in the end (delta: -213.1 kB). Peak memory consumption was 25.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 65.26 ms. Allocated memory is still 310.4 MB. Free memory was 280.6 MB in the beginning and 278.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 62.32 ms. Allocated memory is still 310.4 MB. Free memory was 278.5 MB in the beginning and 277.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 556.39 ms. Allocated memory is still 310.4 MB. Free memory was 277.4 MB in the beginning and 251.2 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 22035.35 ms. Allocated memory was 310.4 MB in the beginning and 539.0 MB in the end (delta: 228.6 MB). Free memory was 251.2 MB in the beginning and 493.0 MB in the end (delta: -241.8 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: 19463.9ms, 85 PlacesBefore, 104 PlacesAfterwards, 73 TransitionsBefore, 91 TransitionsAfterwards, 1392 CoEnabledTransitionPairs, 8 FixpointIterations, 91 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 141 TotalNumberOfCompositions, 12552 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4340, positive: 4036, positive conditional: 4036, positive unconditional: 0, negative: 304, negative conditional: 304, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1446, positive: 1369, positive conditional: 0, positive unconditional: 1369, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1446, positive: 1369, positive conditional: 0, positive unconditional: 1369, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1446, positive: 1325, positive conditional: 0, positive unconditional: 1325, negative: 121, negative conditional: 0, negative unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 121, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 593, positive: 215, positive conditional: 0, positive unconditional: 215, negative: 378, negative conditional: 0, negative unconditional: 378, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4340, positive: 2667, positive conditional: 2667, positive unconditional: 0, negative: 227, negative conditional: 227, negative unconditional: 0, unknown: 1446, unknown conditional: 1446, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1440, Positive cache size: 1363, Positive conditional cache size: 1363, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 61.0ms, 103 PlacesBefore, 61 PlacesAfterwards, 53 TransitionsBefore, 53 TransitionsAfterwards, 1460 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 904 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 286, positive: 261, positive conditional: 261, positive unconditional: 0, negative: 25, negative conditional: 25, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26, positive: 22, positive conditional: 0, positive unconditional: 22, 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: 26, positive: 22, positive conditional: 0, positive unconditional: 22, 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: 26, positive: 22, positive conditional: 0, positive unconditional: 22, 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: 13, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 286, positive: 239, positive conditional: 239, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 26, unknown conditional: 26, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1466, Positive cache size: 1385, Positive conditional cache size: 1385, Positive unconditional cache size: 0, Negative cache size: 81, Negative conditional cache size: 81, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.3ms, 63 PlacesBefore, 63 PlacesAfterwards, 53 TransitionsBefore, 53 TransitionsAfterwards, 1458 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 904 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 286, positive: 261, positive conditional: 261, positive unconditional: 0, negative: 25, negative conditional: 25, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 286, positive: 245, positive conditional: 245, positive unconditional: 0, negative: 24, negative conditional: 24, negative unconditional: 0, unknown: 17, unknown conditional: 17, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1483, Positive cache size: 1401, Positive conditional cache size: 1401, Positive unconditional cache size: 0, Negative cache size: 82, Negative conditional cache size: 82, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 57.6ms, 68 PlacesBefore, 68 PlacesAfterwards, 60 TransitionsBefore, 60 TransitionsAfterwards, 1788 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 797 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 154, positive: 135, positive conditional: 135, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 35, positive: 32, positive conditional: 21, positive unconditional: 11, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 35, positive: 32, positive conditional: 21, positive unconditional: 11, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 35, positive: 32, positive conditional: 0, positive unconditional: 32, 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: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 12, negative conditional: 5, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 154, positive: 103, positive conditional: 103, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 35, unknown conditional: 35, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1518, Positive cache size: 1433, Positive conditional cache size: 1433, Positive unconditional cache size: 0, Negative cache size: 85, Negative conditional cache size: 85, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.3ms, 72 PlacesBefore, 71 PlacesAfterwards, 52 TransitionsBefore, 52 TransitionsAfterwards, 1396 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 675 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 166, positive: 147, positive conditional: 147, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 166, positive: 136, positive conditional: 136, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1530, Positive cache size: 1444, Positive conditional cache size: 1444, Positive unconditional cache size: 0, Negative cache size: 86, Negative conditional cache size: 86, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.7ms, 67 PlacesBefore, 66 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 1238 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 511 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 173, positive: 157, positive conditional: 157, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 10, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 10, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 173, positive: 146, positive conditional: 146, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1541, Positive cache size: 1455, Positive conditional cache size: 1455, Positive unconditional cache size: 0, Negative cache size: 86, Negative conditional cache size: 86, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 230.1ms, 67 PlacesBefore, 49 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 366 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 277 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 150, positive: 136, positive conditional: 136, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 41, positive: 36, positive conditional: 6, positive unconditional: 30, 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: 41, positive: 36, positive conditional: 6, positive unconditional: 30, 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: 41, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 24, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 121, positive: 73, positive conditional: 0, positive unconditional: 73, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 150, positive: 100, positive conditional: 100, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 41, unknown conditional: 41, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1582, Positive cache size: 1491, Positive conditional cache size: 1491, Positive unconditional cache size: 0, Negative cache size: 91, Negative conditional cache size: 91, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3ms, 44 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): 1582, Positive cache size: 1491, Positive conditional cache size: 1491, Positive unconditional cache size: 0, Negative cache size: 91, Negative conditional cache size: 91, 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 5 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 15.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 21866.3ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 702.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 19624.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 61 SDtfs, 48 SDslu, 24 SDs, 0 SdLazy, 64 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 122.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 128.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=3, InterpolantAutomatonStates: 27, 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: 28.5ms SsaConstructionTime, 247.5ms SatisfiabilityAnalysisTime, 567.4ms InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 596 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...