/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/safe032_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:44:27,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:44:27,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:44:27,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:44:27,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:44:27,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:44:27,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:44:27,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:44:27,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:44:27,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:44:27,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:44:27,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:44:27,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:44:27,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:44:27,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:44:27,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:44:27,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:44:27,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:44:27,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:44:27,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:44:27,322 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 00:44:27,353 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:44:27,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:44:27,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:44:27,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:44:27,356 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:44:27,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:44:27,357 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:44:27,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:44:27,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:44:27,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:44:27,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:44:27,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:44:27,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:44:27,358 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:44:27,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:44:27,359 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:44:27,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:44:27,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:44:27,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:44:27,360 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:44:27,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:44:27,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:44:27,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:44:27,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:44:27,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:44:27,361 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:44:27,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:44:27,362 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:44:27,362 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:44:27,362 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:44:27,362 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:44:27,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:44:27,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:44:27,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:44:27,798 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:44:27,799 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:44:27,802 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.opt.i [2021-04-29 00:44:27,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3ddd7330/122f004f1c8c42739e2b409ab4c31057/FLAGb8f82bdd7 [2021-04-29 00:44:28,718 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:44:28,722 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.opt.i [2021-04-29 00:44:28,750 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3ddd7330/122f004f1c8c42739e2b409ab4c31057/FLAGb8f82bdd7 [2021-04-29 00:44:28,957 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3ddd7330/122f004f1c8c42739e2b409ab4c31057 [2021-04-29 00:44:28,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:44:29,015 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:44:29,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:44:29,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:44:29,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:44:29,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:44:28" (1/1) ... [2021-04-29 00:44:29,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2154cf93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:29, skipping insertion in model container [2021-04-29 00:44:29,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:44:28" (1/1) ... [2021-04-29 00:44:29,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:44:29,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:44:29,257 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/safe032_tso.opt.i[949,962] [2021-04-29 00:44:29,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:44:29,680 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:44:29,699 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/safe032_tso.opt.i[949,962] [2021-04-29 00:44:29,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:44:29,986 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:44:29,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:29 WrapperNode [2021-04-29 00:44:29,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:44:29,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:44:29,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:44:29,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:44:30,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:29" (1/1) ... [2021-04-29 00:44:30,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:29" (1/1) ... [2021-04-29 00:44:30,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:44:30,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:44:30,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:44:30,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:44:30,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:29" (1/1) ... [2021-04-29 00:44:30,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:29" (1/1) ... [2021-04-29 00:44:30,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:29" (1/1) ... [2021-04-29 00:44:30,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:29" (1/1) ... [2021-04-29 00:44:30,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:29" (1/1) ... [2021-04-29 00:44:30,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:29" (1/1) ... [2021-04-29 00:44:30,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:29" (1/1) ... [2021-04-29 00:44:30,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:44:30,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:44:30,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:44:30,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:44:30,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:29" (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 00:44:30,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:44:30,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:44:30,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:44:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:44:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:44:30,322 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:44:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:44:30,323 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:44:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:44:30,324 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:44:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:44:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:44:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:44:30,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:44:30,327 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 00:44:30,974 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:44:30,974 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:44:30,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:44:30 BoogieIcfgContainer [2021-04-29 00:44:30,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:44:30,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:44:30,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:44:30,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:44:30,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:44:28" (1/3) ... [2021-04-29 00:44:30,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8d79f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:44:30, skipping insertion in model container [2021-04-29 00:44:30,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:29" (2/3) ... [2021-04-29 00:44:30,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8d79f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:44:30, skipping insertion in model container [2021-04-29 00:44:30,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:44:30" (3/3) ... [2021-04-29 00:44:30,988 INFO L111 eAbstractionObserver]: Analyzing ICFG safe032_tso.opt.i [2021-04-29 00:44:30,995 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:44:31,001 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:44:31,002 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:44:31,037 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,038 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,038 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,038 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,038 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,038 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,039 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,039 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,039 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,040 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,041 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,041 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,041 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,042 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,042 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,042 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,043 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,044 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,044 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,044 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,045 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,045 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,045 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,046 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,046 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,046 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,047 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,047 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,047 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,047 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,050 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,050 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,051 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,051 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,056 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,057 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,057 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,057 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,060 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,060 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,061 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,061 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:31,063 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:44:31,090 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 00:44:31,121 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:44:31,122 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:44:31,122 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:44:31,122 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:44:31,122 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:44:31,122 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:44:31,122 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:44:31,123 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:44:31,139 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-04-29 00:44:31,204 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-04-29 00:44:31,205 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:44:31,211 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-29 00:44:31,211 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-04-29 00:44:31,230 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-04-29 00:44:31,232 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:44:31,260 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-29 00:44:31,265 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-29 00:44:31,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-04-29 00:44:31,289 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-04-29 00:44:31,289 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:44:31,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-29 00:44:31,293 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-29 00:44:36,278 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:44:36,572 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:44:36,745 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:44:36,912 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:44:37,213 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:44:37,366 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:44:37,524 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:44:37,956 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:44:38,179 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:44:38,391 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:44:38,610 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:44:38,827 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:44:39,038 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:44:39,271 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:44:39,507 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:44:39,732 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:44:39,940 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:44:40,174 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:44:40,417 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:44:40,633 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:44:40,845 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:44:41,063 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:44:41,273 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:44:41,830 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-29 00:44:41,948 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-29 00:44:42,178 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-29 00:44:42,476 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-29 00:44:42,764 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-29 00:44:42,886 INFO L158 LiptonReduction]: Checked pairs total: 6628 [2021-04-29 00:44:42,887 INFO L160 LiptonReduction]: Total number of compositions: 91 [2021-04-29 00:44:42,891 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11661 [2021-04-29 00:44:42,916 INFO L129 PetriNetUnfolder]: 0/66 cut-off events. [2021-04-29 00:44:42,916 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:44:42,916 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:44:42,917 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:44:42,918 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:44:42,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:44:42,926 INFO L82 PathProgramCache]: Analyzing trace with hash 213441385, now seen corresponding path program 1 times [2021-04-29 00:44:42,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:44:42,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986022349] [2021-04-29 00:44:42,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:44:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:44:43,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:44:43,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:44:43,268 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 00:44:43,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986022349] [2021-04-29 00:44:43,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:44:43,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:44:43,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164325477] [2021-04-29 00:44:43,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:44:43,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:44:43,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:44:43,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:44:43,302 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 165 [2021-04-29 00:44:43,307 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 70 transitions, 149 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 00:44:43,307 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:44:43,307 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 165 [2021-04-29 00:44:43,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:44:43,389 INFO L129 PetriNetUnfolder]: 5/80 cut-off events. [2021-04-29 00:44:43,390 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:44:43,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 80 events. 5/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 394 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 77. Up to 17 conditions per place. [2021-04-29 00:44:43,392 INFO L132 encePairwiseOnDemand]: 150/165 looper letters, 1 selfloop transitions, 2 changer transitions 50/75 dead transitions. [2021-04-29 00:44:43,392 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 75 transitions, 209 flow [2021-04-29 00:44:43,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:44:43,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:44:43,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 393 transitions. [2021-04-29 00:44:43,409 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.793939393939394 [2021-04-29 00:44:43,410 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 393 transitions. [2021-04-29 00:44:43,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 393 transitions. [2021-04-29 00:44:43,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:44:43,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 393 transitions. [2021-04-29 00:44:43,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 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 00:44:43,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 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 00:44:43,429 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 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 00:44:43,432 INFO L185 Difference]: Start difference. First operand has 80 places, 70 transitions, 149 flow. Second operand 3 states and 393 transitions. [2021-04-29 00:44:43,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 75 transitions, 209 flow [2021-04-29 00:44:43,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 75 transitions, 206 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:44:43,438 INFO L241 Difference]: Finished difference. Result has 80 places, 25 transitions, 64 flow [2021-04-29 00:44:43,441 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=80, PETRI_TRANSITIONS=25} [2021-04-29 00:44:43,442 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 0 predicate places. [2021-04-29 00:44:43,442 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:44:43,442 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 25 transitions, 64 flow [2021-04-29 00:44:43,443 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 25 transitions, 64 flow [2021-04-29 00:44:43,443 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 25 transitions, 64 flow [2021-04-29 00:44:43,448 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-04-29 00:44:43,448 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:44:43,448 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 25 events. 0/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 57 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-29 00:44:43,449 INFO L146 LiptonReduction]: Number of co-enabled transitions 324 [2021-04-29 00:44:43,514 INFO L158 LiptonReduction]: Checked pairs total: 287 [2021-04-29 00:44:43,514 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:44:43,515 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 73 [2021-04-29 00:44:43,517 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 25 transitions, 64 flow [2021-04-29 00:44:43,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 00:44:43,517 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:44:43,518 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:44:43,518 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:44:43,518 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:44:43,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:44:43,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1041306806, now seen corresponding path program 1 times [2021-04-29 00:44:43,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:44:43,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714062737] [2021-04-29 00:44:43,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:44:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:44:43,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:44:43,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:44:43,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:44:43,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:44:43,592 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:44:43,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:44:43,604 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 00:44:43,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714062737] [2021-04-29 00:44:43,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:44:43,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:44:43,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203929583] [2021-04-29 00:44:43,606 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:44:43,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:44:43,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:44:43,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:44:43,610 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 165 [2021-04-29 00:44:43,610 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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 00:44:43,611 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:44:43,611 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 165 [2021-04-29 00:44:43,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:44:43,670 INFO L129 PetriNetUnfolder]: 47/203 cut-off events. [2021-04-29 00:44:43,670 INFO L130 PetriNetUnfolder]: For 24/38 co-relation queries the response was YES. [2021-04-29 00:44:43,671 INFO L84 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 203 events. 47/203 cut-off events. For 24/38 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1199 event pairs, 4 based on Foata normal form. 16/154 useless extension candidates. Maximal degree in co-relation 344. Up to 41 conditions per place. [2021-04-29 00:44:43,672 INFO L132 encePairwiseOnDemand]: 157/165 looper letters, 8 selfloop transitions, 8 changer transitions 3/36 dead transitions. [2021-04-29 00:44:43,673 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 36 transitions, 130 flow [2021-04-29 00:44:43,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:44:43,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:44:43,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 425 transitions. [2021-04-29 00:44:43,677 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6439393939393939 [2021-04-29 00:44:43,677 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 425 transitions. [2021-04-29 00:44:43,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 425 transitions. [2021-04-29 00:44:43,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:44:43,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 425 transitions. [2021-04-29 00:44:43,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 106.25) internal successors, (425), 4 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 00:44:43,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 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 00:44:43,683 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 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 00:44:43,683 INFO L185 Difference]: Start difference. First operand has 35 places, 25 transitions, 64 flow. Second operand 4 states and 425 transitions. [2021-04-29 00:44:43,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 36 transitions, 130 flow [2021-04-29 00:44:43,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 36 transitions, 122 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:44:43,685 INFO L241 Difference]: Finished difference. Result has 39 places, 30 transitions, 115 flow [2021-04-29 00:44:43,686 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=115, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2021-04-29 00:44:43,686 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -41 predicate places. [2021-04-29 00:44:43,686 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:44:43,687 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 30 transitions, 115 flow [2021-04-29 00:44:43,687 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 30 transitions, 115 flow [2021-04-29 00:44:43,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 30 transitions, 115 flow [2021-04-29 00:44:43,709 INFO L129 PetriNetUnfolder]: 26/118 cut-off events. [2021-04-29 00:44:43,709 INFO L130 PetriNetUnfolder]: For 35/42 co-relation queries the response was YES. [2021-04-29 00:44:43,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 118 events. 26/118 cut-off events. For 35/42 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 565 event pairs, 3 based on Foata normal form. 1/80 useless extension candidates. Maximal degree in co-relation 232. Up to 41 conditions per place. [2021-04-29 00:44:43,715 INFO L146 LiptonReduction]: Number of co-enabled transitions 362 [2021-04-29 00:44:43,718 INFO L158 LiptonReduction]: Checked pairs total: 22 [2021-04-29 00:44:43,719 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:44:43,719 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-04-29 00:44:43,721 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 30 transitions, 115 flow [2021-04-29 00:44:43,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 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 00:44:43,721 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:44:43,722 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:44:43,722 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:44:43,722 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:44:43,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:44:43,723 INFO L82 PathProgramCache]: Analyzing trace with hash 2079225834, now seen corresponding path program 1 times [2021-04-29 00:44:43,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:44:43,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378941146] [2021-04-29 00:44:43,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:44:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:44:43,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:44:43,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:44:43,801 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:44:43,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:44:43,812 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 00:44:43,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378941146] [2021-04-29 00:44:43,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:44:43,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:44:43,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74765602] [2021-04-29 00:44:43,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:44:43,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:44:43,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:44:43,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:44:43,816 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 165 [2021-04-29 00:44:43,817 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 115 flow. Second operand has 4 states, 4 states have (on average 102.25) internal successors, (409), 4 states have internal predecessors, (409), 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 00:44:43,817 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:44:43,818 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 165 [2021-04-29 00:44:43,818 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:44:43,857 INFO L129 PetriNetUnfolder]: 28/122 cut-off events. [2021-04-29 00:44:43,858 INFO L130 PetriNetUnfolder]: For 66/130 co-relation queries the response was YES. [2021-04-29 00:44:43,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 122 events. 28/122 cut-off events. For 66/130 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 553 event pairs, 3 based on Foata normal form. 6/93 useless extension candidates. Maximal degree in co-relation 300. Up to 42 conditions per place. [2021-04-29 00:44:43,859 INFO L132 encePairwiseOnDemand]: 157/165 looper letters, 10 selfloop transitions, 12 changer transitions 1/40 dead transitions. [2021-04-29 00:44:43,859 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 40 transitions, 216 flow [2021-04-29 00:44:43,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:44:43,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:44:43,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 423 transitions. [2021-04-29 00:44:43,862 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6409090909090909 [2021-04-29 00:44:43,862 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 423 transitions. [2021-04-29 00:44:43,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 423 transitions. [2021-04-29 00:44:43,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:44:43,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 423 transitions. [2021-04-29 00:44:43,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 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 00:44:43,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 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 00:44:43,867 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 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 00:44:43,867 INFO L185 Difference]: Start difference. First operand has 39 places, 30 transitions, 115 flow. Second operand 4 states and 423 transitions. [2021-04-29 00:44:43,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 40 transitions, 216 flow [2021-04-29 00:44:43,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 40 transitions, 216 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:44:43,870 INFO L241 Difference]: Finished difference. Result has 45 places, 36 transitions, 206 flow [2021-04-29 00:44:43,871 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=206, PETRI_PLACES=45, PETRI_TRANSITIONS=36} [2021-04-29 00:44:43,871 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -35 predicate places. [2021-04-29 00:44:43,871 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:44:43,871 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 36 transitions, 206 flow [2021-04-29 00:44:43,872 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 36 transitions, 206 flow [2021-04-29 00:44:43,872 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 36 transitions, 206 flow [2021-04-29 00:44:43,885 INFO L129 PetriNetUnfolder]: 25/118 cut-off events. [2021-04-29 00:44:43,886 INFO L130 PetriNetUnfolder]: For 122/136 co-relation queries the response was YES. [2021-04-29 00:44:43,886 INFO L84 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 118 events. 25/118 cut-off events. For 122/136 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 575 event pairs, 3 based on Foata normal form. 2/86 useless extension candidates. Maximal degree in co-relation 318. Up to 41 conditions per place. [2021-04-29 00:44:43,889 INFO L146 LiptonReduction]: Number of co-enabled transitions 400 [2021-04-29 00:44:43,892 INFO L158 LiptonReduction]: Checked pairs total: 28 [2021-04-29 00:44:43,893 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:44:43,893 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-04-29 00:44:43,895 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 206 flow [2021-04-29 00:44:43,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 102.25) internal successors, (409), 4 states have internal predecessors, (409), 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 00:44:43,895 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:44:43,895 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:44:43,896 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:44:43,896 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:44:43,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:44:43,896 INFO L82 PathProgramCache]: Analyzing trace with hash 27826534, now seen corresponding path program 1 times [2021-04-29 00:44:43,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:44:43,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777646997] [2021-04-29 00:44:43,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:44:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:44:43,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:44:43,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:44:43,969 INFO L142 QuantifierPusher]: treesize reduction 19, result has 32.1 percent of original size [2021-04-29 00:44:43,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:44:43,977 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 00:44:43,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777646997] [2021-04-29 00:44:43,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:44:43,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:44:43,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511805797] [2021-04-29 00:44:43,978 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:44:43,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:44:43,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:44:43,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:44:43,981 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 165 [2021-04-29 00:44:43,982 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 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 00:44:43,982 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:44:43,982 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 165 [2021-04-29 00:44:43,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:44:44,194 INFO L129 PetriNetUnfolder]: 600/1143 cut-off events. [2021-04-29 00:44:44,194 INFO L130 PetriNetUnfolder]: For 1096/1260 co-relation queries the response was YES. [2021-04-29 00:44:44,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2643 conditions, 1143 events. 600/1143 cut-off events. For 1096/1260 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 7834 event pairs, 220 based on Foata normal form. 52/571 useless extension candidates. Maximal degree in co-relation 2625. Up to 808 conditions per place. [2021-04-29 00:44:44,204 INFO L132 encePairwiseOnDemand]: 153/165 looper letters, 11 selfloop transitions, 14 changer transitions 15/64 dead transitions. [2021-04-29 00:44:44,204 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 64 transitions, 342 flow [2021-04-29 00:44:44,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:44:44,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:44:44,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 552 transitions. [2021-04-29 00:44:44,207 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6690909090909091 [2021-04-29 00:44:44,207 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 552 transitions. [2021-04-29 00:44:44,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 552 transitions. [2021-04-29 00:44:44,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:44:44,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 552 transitions. [2021-04-29 00:44:44,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 110.4) internal successors, (552), 5 states have internal predecessors, (552), 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 00:44:44,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 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 00:44:44,213 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 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 00:44:44,213 INFO L185 Difference]: Start difference. First operand has 45 places, 36 transitions, 206 flow. Second operand 5 states and 552 transitions. [2021-04-29 00:44:44,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 64 transitions, 342 flow [2021-04-29 00:44:44,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 64 transitions, 342 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:44:44,219 INFO L241 Difference]: Finished difference. Result has 52 places, 49 transitions, 314 flow [2021-04-29 00:44:44,219 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=314, PETRI_PLACES=52, PETRI_TRANSITIONS=49} [2021-04-29 00:44:44,220 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -28 predicate places. [2021-04-29 00:44:44,220 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:44:44,220 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 49 transitions, 314 flow [2021-04-29 00:44:44,220 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 49 transitions, 314 flow [2021-04-29 00:44:44,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 49 transitions, 314 flow [2021-04-29 00:44:44,347 INFO L129 PetriNetUnfolder]: 283/768 cut-off events. [2021-04-29 00:44:44,347 INFO L130 PetriNetUnfolder]: For 994/1169 co-relation queries the response was YES. [2021-04-29 00:44:44,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2446 conditions, 768 events. 283/768 cut-off events. For 994/1169 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 6520 event pairs, 152 based on Foata normal form. 10/366 useless extension candidates. Maximal degree in co-relation 2425. Up to 584 conditions per place. [2021-04-29 00:44:44,362 INFO L146 LiptonReduction]: Number of co-enabled transitions 606 [2021-04-29 00:44:44,368 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:44:44,369 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:44:44,369 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 149 [2021-04-29 00:44:44,370 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 49 transitions, 314 flow [2021-04-29 00:44:44,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 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 00:44:44,371 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:44:44,371 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:44:44,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:44:44,372 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:44:44,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:44:44,372 INFO L82 PathProgramCache]: Analyzing trace with hash 634874063, now seen corresponding path program 1 times [2021-04-29 00:44:44,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:44:44,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124385109] [2021-04-29 00:44:44,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:44:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:44:44,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:44:44,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:44:44,430 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:44:44,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:44:44,436 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:44:44,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:44:44,446 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 00:44:44,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124385109] [2021-04-29 00:44:44,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:44:44,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:44:44,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114460309] [2021-04-29 00:44:44,448 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:44:44,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:44:44,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:44:44,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:44:44,450 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 165 [2021-04-29 00:44:44,451 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 49 transitions, 314 flow. Second operand has 5 states, 5 states have (on average 102.8) internal successors, (514), 5 states have internal predecessors, (514), 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 00:44:44,451 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:44:44,451 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 165 [2021-04-29 00:44:44,451 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:44:44,676 INFO L129 PetriNetUnfolder]: 390/930 cut-off events. [2021-04-29 00:44:44,676 INFO L130 PetriNetUnfolder]: For 1789/2109 co-relation queries the response was YES. [2021-04-29 00:44:44,682 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3529 conditions, 930 events. 390/930 cut-off events. For 1789/2109 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 7049 event pairs, 31 based on Foata normal form. 88/529 useless extension candidates. Maximal degree in co-relation 3506. Up to 647 conditions per place. [2021-04-29 00:44:44,685 INFO L132 encePairwiseOnDemand]: 153/165 looper letters, 8 selfloop transitions, 24 changer transitions 22/77 dead transitions. [2021-04-29 00:44:44,685 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 77 transitions, 568 flow [2021-04-29 00:44:44,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:44:44,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:44:44,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 769 transitions. [2021-04-29 00:44:44,689 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6658008658008658 [2021-04-29 00:44:44,689 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 769 transitions. [2021-04-29 00:44:44,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 769 transitions. [2021-04-29 00:44:44,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:44:44,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 769 transitions. [2021-04-29 00:44:44,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 109.85714285714286) internal successors, (769), 7 states have internal predecessors, (769), 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 00:44:44,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 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 00:44:44,696 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 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 00:44:44,696 INFO L185 Difference]: Start difference. First operand has 52 places, 49 transitions, 314 flow. Second operand 7 states and 769 transitions. [2021-04-29 00:44:44,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 77 transitions, 568 flow [2021-04-29 00:44:44,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 77 transitions, 568 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:44:44,706 INFO L241 Difference]: Finished difference. Result has 61 places, 55 transitions, 449 flow [2021-04-29 00:44:44,706 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=449, PETRI_PLACES=61, PETRI_TRANSITIONS=55} [2021-04-29 00:44:44,706 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -19 predicate places. [2021-04-29 00:44:44,706 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:44:44,707 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 55 transitions, 449 flow [2021-04-29 00:44:44,707 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 55 transitions, 449 flow [2021-04-29 00:44:44,708 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 449 flow [2021-04-29 00:44:44,775 INFO L129 PetriNetUnfolder]: 190/565 cut-off events. [2021-04-29 00:44:44,776 INFO L130 PetriNetUnfolder]: For 1560/2449 co-relation queries the response was YES. [2021-04-29 00:44:44,779 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2545 conditions, 565 events. 190/565 cut-off events. For 1560/2449 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 4298 event pairs, 28 based on Foata normal form. 14/330 useless extension candidates. Maximal degree in co-relation 2519. Up to 421 conditions per place. [2021-04-29 00:44:44,786 INFO L146 LiptonReduction]: Number of co-enabled transitions 540 [2021-04-29 00:44:44,794 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:44:44,795 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:44:44,795 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 89 [2021-04-29 00:44:44,796 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 55 transitions, 449 flow [2021-04-29 00:44:44,797 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 102.8) internal successors, (514), 5 states have internal predecessors, (514), 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 00:44:44,797 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:44:44,797 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:44:44,797 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:44:44,797 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:44:44,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:44:44,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1568542352, now seen corresponding path program 1 times [2021-04-29 00:44:44,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:44:44,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177372644] [2021-04-29 00:44:44,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:44:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:44:44,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:44:44,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:44:44,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:44:44,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:44:44,894 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:44:44,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:44:44,901 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:44:44,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:44:44,910 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 00:44:44,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177372644] [2021-04-29 00:44:44,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:44:44,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:44:44,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343343445] [2021-04-29 00:44:44,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:44:44,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:44:44,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:44:44,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:44:44,916 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 165 [2021-04-29 00:44:44,916 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 55 transitions, 449 flow. Second operand has 6 states, 6 states have (on average 102.83333333333333) internal successors, (617), 6 states have internal predecessors, (617), 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 00:44:44,917 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:44:44,917 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 165 [2021-04-29 00:44:44,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:44:45,108 INFO L129 PetriNetUnfolder]: 136/481 cut-off events. [2021-04-29 00:44:45,108 INFO L130 PetriNetUnfolder]: For 1854/2286 co-relation queries the response was YES. [2021-04-29 00:44:45,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2467 conditions, 481 events. 136/481 cut-off events. For 1854/2286 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 3698 event pairs, 4 based on Foata normal form. 82/353 useless extension candidates. Maximal degree in co-relation 2450. Up to 364 conditions per place. [2021-04-29 00:44:45,112 INFO L132 encePairwiseOnDemand]: 153/165 looper letters, 0 selfloop transitions, 0 changer transitions 61/61 dead transitions. [2021-04-29 00:44:45,112 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 61 transitions, 573 flow [2021-04-29 00:44:45,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 00:44:45,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 00:44:45,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 957 transitions. [2021-04-29 00:44:45,116 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6444444444444445 [2021-04-29 00:44:45,116 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 957 transitions. [2021-04-29 00:44:45,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 957 transitions. [2021-04-29 00:44:45,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:44:45,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 957 transitions. [2021-04-29 00:44:45,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 106.33333333333333) internal successors, (957), 9 states have internal predecessors, (957), 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 00:44:45,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 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 00:44:45,124 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 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 00:44:45,124 INFO L185 Difference]: Start difference. First operand has 60 places, 55 transitions, 449 flow. Second operand 9 states and 957 transitions. [2021-04-29 00:44:45,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 61 transitions, 573 flow [2021-04-29 00:44:45,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 61 transitions, 490 flow, removed 16 selfloop flow, removed 8 redundant places. [2021-04-29 00:44:45,138 INFO L241 Difference]: Finished difference. Result has 59 places, 0 transitions, 0 flow [2021-04-29 00:44:45,138 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=59, PETRI_TRANSITIONS=0} [2021-04-29 00:44:45,139 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -21 predicate places. [2021-04-29 00:44:45,139 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:44:45,139 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 0 transitions, 0 flow [2021-04-29 00:44:45,139 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 0 transitions, 0 flow [2021-04-29 00:44:45,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:44:45,140 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:44:45,140 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:44:45,140 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 00:44:45,140 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:44:45,140 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:44:45,140 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:44:45,141 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:44:45,142 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:44:45,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 102.83333333333333) internal successors, (617), 6 states have internal predecessors, (617), 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 00:44:45,143 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:44:45,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:44:45 BasicIcfg [2021-04-29 00:44:45,147 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:44:45,149 INFO L168 Benchmark]: Toolchain (without parser) took 16186.75 ms. Allocated memory was 302.0 MB in the beginning and 484.4 MB in the end (delta: 182.5 MB). Free memory was 276.3 MB in the beginning and 296.6 MB in the end (delta: -20.3 MB). Peak memory consumption was 164.2 MB. Max. memory is 16.0 GB. [2021-04-29 00:44:45,149 INFO L168 Benchmark]: CDTParser took 1.17 ms. Allocated memory is still 302.0 MB. Free memory is still 270.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:44:45,150 INFO L168 Benchmark]: CACSL2BoogieTranslator took 973.30 ms. Allocated memory is still 302.0 MB. Free memory was 273.3 MB in the beginning and 272.5 MB in the end (delta: 769.5 kB). Peak memory consumption was 26.8 MB. Max. memory is 16.0 GB. [2021-04-29 00:44:45,150 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.13 ms. Allocated memory is still 302.0 MB. Free memory was 272.5 MB in the beginning and 271.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:44:45,151 INFO L168 Benchmark]: Boogie Preprocessor took 65.52 ms. Allocated memory is still 302.0 MB. Free memory was 271.5 MB in the beginning and 269.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:44:45,152 INFO L168 Benchmark]: RCFGBuilder took 807.74 ms. Allocated memory is still 302.0 MB. Free memory was 269.4 MB in the beginning and 247.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:44:45,152 INFO L168 Benchmark]: TraceAbstraction took 14168.48 ms. Allocated memory was 302.0 MB in the beginning and 484.4 MB in the end (delta: 182.5 MB). Free memory was 246.3 MB in the beginning and 296.6 MB in the end (delta: -50.3 MB). Peak memory consumption was 135.3 MB. Max. memory is 16.0 GB. [2021-04-29 00:44:45,155 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.17 ms. Allocated memory is still 302.0 MB. Free memory is still 270.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 973.30 ms. Allocated memory is still 302.0 MB. Free memory was 273.3 MB in the beginning and 272.5 MB in the end (delta: 769.5 kB). Peak memory consumption was 26.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 111.13 ms. Allocated memory is still 302.0 MB. Free memory was 272.5 MB in the beginning and 271.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 65.52 ms. Allocated memory is still 302.0 MB. Free memory was 271.5 MB in the beginning and 269.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 807.74 ms. Allocated memory is still 302.0 MB. Free memory was 269.4 MB in the beginning and 247.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 14168.48 ms. Allocated memory was 302.0 MB in the beginning and 484.4 MB in the end (delta: 182.5 MB). Free memory was 246.3 MB in the beginning and 296.6 MB in the end (delta: -50.3 MB). Peak memory consumption was 135.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11622.2ms, 68 PlacesBefore, 80 PlacesAfterwards, 59 TransitionsBefore, 70 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 91 TotalNumberOfCompositions, 6628 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1406, positive: 1204, positive conditional: 1204, positive unconditional: 0, negative: 202, negative conditional: 202, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 779, positive: 713, positive conditional: 0, positive unconditional: 713, negative: 66, negative conditional: 0, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 779, positive: 713, positive conditional: 0, positive unconditional: 713, negative: 66, negative conditional: 0, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 779, positive: 707, positive conditional: 0, positive unconditional: 707, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 72, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 66, negative conditional: 0, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 430, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 388, negative conditional: 0, negative unconditional: 388, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1406, positive: 491, positive conditional: 491, positive unconditional: 0, negative: 136, negative conditional: 136, negative unconditional: 0, unknown: 779, unknown conditional: 779, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 760, Positive cache size: 694, Positive conditional cache size: 694, Positive unconditional cache size: 0, Negative cache size: 66, Negative conditional cache size: 66, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 71.9ms, 80 PlacesBefore, 35 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 324 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 287 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 87, positive: 68, positive conditional: 68, 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: 49, positive: 42, positive conditional: 3, positive unconditional: 39, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 49, positive: 42, positive conditional: 3, positive unconditional: 39, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 49, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 58, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 26, negative conditional: 6, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 87, positive: 26, positive conditional: 26, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 49, unknown conditional: 49, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 809, Positive cache size: 736, Positive conditional cache size: 736, Positive unconditional cache size: 0, Negative cache size: 73, Negative conditional cache size: 73, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.5ms, 39 PlacesBefore, 39 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 362 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 22 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 6, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 813, Positive cache size: 740, Positive conditional cache size: 740, Positive unconditional cache size: 0, Negative cache size: 73, Negative conditional cache size: 73, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.0ms, 45 PlacesBefore, 45 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 400 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 28 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 815, Positive cache size: 742, Positive conditional cache size: 742, Positive unconditional cache size: 0, Negative cache size: 73, Negative conditional cache size: 73, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 148.2ms, 52 PlacesBefore, 52 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 606 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): 815, Positive cache size: 742, Positive conditional cache size: 742, Positive unconditional cache size: 0, Negative cache size: 73, Negative conditional cache size: 73, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 87.6ms, 61 PlacesBefore, 60 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 540 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): 815, Positive cache size: 742, Positive conditional cache size: 742, Positive unconditional cache size: 0, Negative cache size: 73, Negative conditional cache size: 73, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1ms, 59 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): 815, Positive cache size: 742, Positive conditional cache size: 742, Positive unconditional cache size: 0, Negative cache size: 73, Negative conditional cache size: 73, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 15.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 14029.0ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1006.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11777.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 47 SDtfs, 35 SDslu, 14 SDs, 0 SdLazy, 233 SolverSat, 81 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 245.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 116.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=449occurred in iteration=5, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.8ms SsaConstructionTime, 154.5ms SatisfiabilityAnalysisTime, 460.0ms InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 235 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...