/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/thin000_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:50:08,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:50:08,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:50:08,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:50:08,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:50:08,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:50:08,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:50:08,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:50:08,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:50:08,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:50:08,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:50:08,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:50:08,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:50:08,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:50:08,423 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:50:08,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:50:08,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:50:08,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:50:08,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:50:08,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:50:08,465 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 00:50:08,529 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:50:08,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:50:08,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:50:08,538 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:50:08,538 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:50:08,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:50:08,538 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:50:08,539 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:50:08,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:50:08,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:50:08,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:50:08,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:50:08,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:50:08,541 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:50:08,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:50:08,541 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:50:08,542 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:50:08,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:50:08,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:50:08,542 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:50:08,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:50:08,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:50:08,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:50:08,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:50:08,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:50:08,543 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:50:08,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:50:08,544 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:50:08,544 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:50:08,544 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:50:08,545 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:50:09,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:50:09,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:50:09,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:50:09,144 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:50:09,145 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:50:09,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin000_tso.oepc.i [2021-04-29 00:50:09,253 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7d49ca71/99392ae3e4534807886652fcfb44717d/FLAGe287f4f00 [2021-04-29 00:50:10,257 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:50:10,258 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_tso.oepc.i [2021-04-29 00:50:10,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7d49ca71/99392ae3e4534807886652fcfb44717d/FLAGe287f4f00 [2021-04-29 00:50:10,455 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7d49ca71/99392ae3e4534807886652fcfb44717d [2021-04-29 00:50:10,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:50:10,507 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:50:10,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:50:10,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:50:10,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:50:10,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:50:10" (1/1) ... [2021-04-29 00:50:10,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c9bd7f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:50:10, skipping insertion in model container [2021-04-29 00:50:10,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:50:10" (1/1) ... [2021-04-29 00:50:10,540 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:50:10,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:50:10,841 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/thin000_tso.oepc.i[950,963] [2021-04-29 00:50:11,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:50:11,092 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:50:11,113 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/thin000_tso.oepc.i[950,963] [2021-04-29 00:50:11,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:50:11,338 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:50:11,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:50:11 WrapperNode [2021-04-29 00:50:11,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:50:11,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:50:11,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:50:11,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:50:11,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:50:11" (1/1) ... [2021-04-29 00:50:11,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:50:11" (1/1) ... [2021-04-29 00:50:11,433 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:50:11,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:50:11,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:50:11,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:50:11,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:50:11" (1/1) ... [2021-04-29 00:50:11,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:50:11" (1/1) ... [2021-04-29 00:50:11,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:50:11" (1/1) ... [2021-04-29 00:50:11,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:50:11" (1/1) ... [2021-04-29 00:50:11,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:50:11" (1/1) ... [2021-04-29 00:50:11,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:50:11" (1/1) ... [2021-04-29 00:50:11,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:50:11" (1/1) ... [2021-04-29 00:50:11,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:50:11,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:50:11,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:50:11,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:50:11,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:50:11" (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 00:50:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:50:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:50:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:50:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:50:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:50:11,633 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:50:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:50:11,634 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:50:11,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:50:11,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:50:11,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:50:11,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:50:11,636 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 00:50:12,078 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:50:12,078 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:50:12,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:50:12 BoogieIcfgContainer [2021-04-29 00:50:12,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:50:12,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:50:12,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:50:12,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:50:12,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:50:10" (1/3) ... [2021-04-29 00:50:12,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1f67bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:50:12, skipping insertion in model container [2021-04-29 00:50:12,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:50:11" (2/3) ... [2021-04-29 00:50:12,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1f67bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:50:12, skipping insertion in model container [2021-04-29 00:50:12,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:50:12" (3/3) ... [2021-04-29 00:50:12,106 INFO L111 eAbstractionObserver]: Analyzing ICFG thin000_tso.oepc.i [2021-04-29 00:50:12,119 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:50:12,128 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:50:12,131 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:50:12,184 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,185 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,185 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,185 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,185 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,186 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,186 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,186 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,187 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,187 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,188 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,188 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,189 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,189 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,189 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,190 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,191 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,191 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,196 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,196 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,197 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,197 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,204 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,205 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,205 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,206 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:50:12,208 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:50:12,246 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-29 00:50:12,287 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:50:12,287 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:50:12,287 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:50:12,288 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:50:12,288 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:50:12,288 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:50:12,288 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:50:12,288 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:50:12,312 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 132 flow [2021-04-29 00:50:12,369 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2021-04-29 00:50:12,369 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:50:12,375 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 59 events. 2/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-04-29 00:50:12,375 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 61 transitions, 132 flow [2021-04-29 00:50:12,382 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 49 transitions, 104 flow [2021-04-29 00:50:12,385 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:50:12,412 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 49 transitions, 104 flow [2021-04-29 00:50:12,417 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 49 transitions, 104 flow [2021-04-29 00:50:12,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 49 transitions, 104 flow [2021-04-29 00:50:12,445 INFO L129 PetriNetUnfolder]: 1/49 cut-off events. [2021-04-29 00:50:12,446 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:50:12,449 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2021-04-29 00:50:12,456 INFO L146 LiptonReduction]: Number of co-enabled transitions 456 [2021-04-29 00:50:17,141 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:50:17,303 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:50:17,461 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:50:17,624 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:50:17,796 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:50:17,971 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:50:18,147 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:50:18,344 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:50:18,540 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:50:18,703 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:50:19,954 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:50:20,131 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:50:20,328 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:50:20,529 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:50:20,738 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:50:20,954 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:50:21,132 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:50:21,301 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:50:22,328 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:50:22,673 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:50:22,915 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:50:23,173 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:50:23,422 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:50:23,649 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:50:23,869 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:50:24,063 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:50:24,242 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:50:24,571 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-04-29 00:50:24,677 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-29 00:50:24,909 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-04-29 00:50:25,012 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-29 00:50:25,238 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-04-29 00:50:25,574 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-04-29 00:50:25,843 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:50:26,082 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:50:26,325 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:50:26,586 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:50:26,784 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:50:26,957 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:50:27,109 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:50:27,263 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:50:27,349 INFO L158 LiptonReduction]: Checked pairs total: 4326 [2021-04-29 00:50:27,349 INFO L160 LiptonReduction]: Total number of compositions: 110 [2021-04-29 00:50:27,355 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14972 [2021-04-29 00:50:27,394 INFO L129 PetriNetUnfolder]: 0/58 cut-off events. [2021-04-29 00:50:27,394 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:50:27,395 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:50:27,396 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-29 00:50:27,397 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:50:27,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:50:27,405 INFO L82 PathProgramCache]: Analyzing trace with hash -405816546, now seen corresponding path program 1 times [2021-04-29 00:50:27,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:50:27,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907133144] [2021-04-29 00:50:27,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:50:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:50:27,764 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-29 00:50:27,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:50:27,777 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 00:50:27,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907133144] [2021-04-29 00:50:27,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:50:27,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:50:27,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863261937] [2021-04-29 00:50:27,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:50:27,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:50:27,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:50:27,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:50:27,815 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 171 [2021-04-29 00:50:27,821 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 66 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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 00:50:27,821 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:50:27,821 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 171 [2021-04-29 00:50:27,823 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:50:27,932 INFO L129 PetriNetUnfolder]: 25/143 cut-off events. [2021-04-29 00:50:27,932 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:50:27,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 143 events. 25/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 761 event pairs, 7 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 168. Up to 50 conditions per place. [2021-04-29 00:50:27,936 INFO L132 encePairwiseOnDemand]: 153/171 looper letters, 3 selfloop transitions, 3 changer transitions 42/73 dead transitions. [2021-04-29 00:50:27,936 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 73 transitions, 212 flow [2021-04-29 00:50:27,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:50:27,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:50:27,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 332 transitions. [2021-04-29 00:50:27,962 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6471734892787524 [2021-04-29 00:50:27,963 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 332 transitions. [2021-04-29 00:50:27,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 332 transitions. [2021-04-29 00:50:27,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:50:27,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 332 transitions. [2021-04-29 00:50:27,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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 00:50:27,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 00:50:27,990 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 00:50:27,993 INFO L185 Difference]: Start difference. First operand has 73 places, 66 transitions, 138 flow. Second operand 3 states and 332 transitions. [2021-04-29 00:50:27,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 73 transitions, 212 flow [2021-04-29 00:50:28,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 73 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:50:28,003 INFO L241 Difference]: Finished difference. Result has 74 places, 31 transitions, 81 flow [2021-04-29 00:50:28,007 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=74, PETRI_TRANSITIONS=31} [2021-04-29 00:50:28,009 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, 1 predicate places. [2021-04-29 00:50:28,009 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:50:28,009 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 31 transitions, 81 flow [2021-04-29 00:50:28,010 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 31 transitions, 81 flow [2021-04-29 00:50:28,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 31 transitions, 81 flow [2021-04-29 00:50:28,017 INFO L129 PetriNetUnfolder]: 3/39 cut-off events. [2021-04-29 00:50:28,018 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:50:28,018 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 39 events. 3/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 159 event pairs, 1 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 50. Up to 10 conditions per place. [2021-04-29 00:50:28,020 INFO L146 LiptonReduction]: Number of co-enabled transitions 450 [2021-04-29 00:50:28,041 INFO L158 LiptonReduction]: Checked pairs total: 254 [2021-04-29 00:50:28,042 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:50:28,042 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-04-29 00:50:28,044 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 31 transitions, 81 flow [2021-04-29 00:50:28,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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 00:50:28,045 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:50:28,045 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:50:28,046 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:50:28,046 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:50:28,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:50:28,047 INFO L82 PathProgramCache]: Analyzing trace with hash 290793743, now seen corresponding path program 1 times [2021-04-29 00:50:28,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:50:28,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979512626] [2021-04-29 00:50:28,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:50:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:50:28,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:50:28,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:50:28,185 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-29 00:50:28,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:50:28,200 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 00:50:28,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979512626] [2021-04-29 00:50:28,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:50:28,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:50:28,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056595578] [2021-04-29 00:50:28,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:50:28,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:50:28,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:50:28,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:50:28,215 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 171 [2021-04-29 00:50:28,216 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 81 flow. Second operand has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 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 00:50:28,217 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:50:28,217 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 171 [2021-04-29 00:50:28,217 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:50:28,281 INFO L129 PetriNetUnfolder]: 4/65 cut-off events. [2021-04-29 00:50:28,282 INFO L130 PetriNetUnfolder]: For 9/12 co-relation queries the response was YES. [2021-04-29 00:50:28,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 65 events. 4/65 cut-off events. For 9/12 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 286 event pairs, 0 based on Foata normal form. 3/39 useless extension candidates. Maximal degree in co-relation 95. Up to 12 conditions per place. [2021-04-29 00:50:28,284 INFO L132 encePairwiseOnDemand]: 166/171 looper letters, 4 selfloop transitions, 6 changer transitions 1/34 dead transitions. [2021-04-29 00:50:28,284 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 34 transitions, 111 flow [2021-04-29 00:50:28,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:50:28,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:50:28,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 486 transitions. [2021-04-29 00:50:28,294 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5684210526315789 [2021-04-29 00:50:28,294 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 486 transitions. [2021-04-29 00:50:28,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 486 transitions. [2021-04-29 00:50:28,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:50:28,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 486 transitions. [2021-04-29 00:50:28,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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 00:50:28,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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 00:50:28,306 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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 00:50:28,307 INFO L185 Difference]: Start difference. First operand has 37 places, 31 transitions, 81 flow. Second operand 5 states and 486 transitions. [2021-04-29 00:50:28,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 34 transitions, 111 flow [2021-04-29 00:50:28,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 34 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:50:28,309 INFO L241 Difference]: Finished difference. Result has 43 places, 32 transitions, 110 flow [2021-04-29 00:50:28,310 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=110, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2021-04-29 00:50:28,310 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -30 predicate places. [2021-04-29 00:50:28,310 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:50:28,311 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 32 transitions, 110 flow [2021-04-29 00:50:28,312 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 32 transitions, 110 flow [2021-04-29 00:50:28,313 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 32 transitions, 110 flow [2021-04-29 00:50:28,324 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-04-29 00:50:28,324 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2021-04-29 00:50:28,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 58 events. 1/58 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 241 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 89. Up to 10 conditions per place. [2021-04-29 00:50:28,325 INFO L146 LiptonReduction]: Number of co-enabled transitions 466 [2021-04-29 00:50:28,338 INFO L158 LiptonReduction]: Checked pairs total: 141 [2021-04-29 00:50:28,338 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:50:28,338 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-04-29 00:50:28,340 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 110 flow [2021-04-29 00:50:28,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 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 00:50:28,342 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:50:28,342 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:50:28,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:50:28,342 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:50:28,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:50:28,343 INFO L82 PathProgramCache]: Analyzing trace with hash 304575444, now seen corresponding path program 1 times [2021-04-29 00:50:28,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:50:28,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182450355] [2021-04-29 00:50:28,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:50:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:50:28,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:50:28,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:50:28,414 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-29 00:50:28,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:50:28,422 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 00:50:28,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182450355] [2021-04-29 00:50:28,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:50:28,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:50:28,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276311501] [2021-04-29 00:50:28,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:50:28,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:50:28,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:50:28,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:50:28,427 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 171 [2021-04-29 00:50:28,428 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 100.75) internal successors, (403), 4 states have internal predecessors, (403), 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 00:50:28,429 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:50:28,429 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 171 [2021-04-29 00:50:28,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:50:28,473 INFO L129 PetriNetUnfolder]: 1/43 cut-off events. [2021-04-29 00:50:28,474 INFO L130 PetriNetUnfolder]: For 22/24 co-relation queries the response was YES. [2021-04-29 00:50:28,474 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 43 events. 1/43 cut-off events. For 22/24 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 166 event pairs, 0 based on Foata normal form. 3/25 useless extension candidates. Maximal degree in co-relation 70. Up to 7 conditions per place. [2021-04-29 00:50:28,475 INFO L132 encePairwiseOnDemand]: 168/171 looper letters, 3 selfloop transitions, 3 changer transitions 3/32 dead transitions. [2021-04-29 00:50:28,475 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 32 transitions, 124 flow [2021-04-29 00:50:28,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:50:28,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:50:28,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2021-04-29 00:50:28,477 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5964912280701754 [2021-04-29 00:50:28,477 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 306 transitions. [2021-04-29 00:50:28,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions. [2021-04-29 00:50:28,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:50:28,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions. [2021-04-29 00:50:28,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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 00:50:28,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 00:50:28,481 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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 00:50:28,482 INFO L185 Difference]: Start difference. First operand has 42 places, 32 transitions, 110 flow. Second operand 3 states and 306 transitions. [2021-04-29 00:50:28,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 32 transitions, 124 flow [2021-04-29 00:50:28,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 32 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:50:28,485 INFO L241 Difference]: Finished difference. Result has 44 places, 29 transitions, 103 flow [2021-04-29 00:50:28,485 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=44, PETRI_TRANSITIONS=29} [2021-04-29 00:50:28,486 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -29 predicate places. [2021-04-29 00:50:28,486 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:50:28,487 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 29 transitions, 103 flow [2021-04-29 00:50:28,487 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 29 transitions, 103 flow [2021-04-29 00:50:28,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 29 transitions, 103 flow [2021-04-29 00:50:28,493 INFO L129 PetriNetUnfolder]: 1/33 cut-off events. [2021-04-29 00:50:28,493 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2021-04-29 00:50:28,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 33 events. 1/33 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 118 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 54. Up to 6 conditions per place. [2021-04-29 00:50:28,495 INFO L146 LiptonReduction]: Number of co-enabled transitions 370 [2021-04-29 00:50:28,500 INFO L158 LiptonReduction]: Checked pairs total: 132 [2021-04-29 00:50:28,500 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:50:28,500 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-04-29 00:50:28,502 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 29 transitions, 103 flow [2021-04-29 00:50:28,502 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 100.75) internal successors, (403), 4 states have internal predecessors, (403), 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 00:50:28,503 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:50:28,503 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:50:28,503 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:50:28,503 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:50:28,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:50:28,504 INFO L82 PathProgramCache]: Analyzing trace with hash 852276573, now seen corresponding path program 1 times [2021-04-29 00:50:28,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:50:28,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553324557] [2021-04-29 00:50:28,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:50:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:50:28,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:50:28,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:50:28,566 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-29 00:50:28,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:50:28,573 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 00:50:28,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553324557] [2021-04-29 00:50:28,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:50:28,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:50:28,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913992252] [2021-04-29 00:50:28,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:50:28,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:50:28,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:50:28,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:50:28,578 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 171 [2021-04-29 00:50:28,580 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 29 transitions, 103 flow. Second operand has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 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 00:50:28,580 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:50:28,580 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 171 [2021-04-29 00:50:28,580 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:50:28,615 INFO L129 PetriNetUnfolder]: 1/48 cut-off events. [2021-04-29 00:50:28,615 INFO L130 PetriNetUnfolder]: For 49/52 co-relation queries the response was YES. [2021-04-29 00:50:28,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 48 events. 1/48 cut-off events. For 49/52 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 185 event pairs, 0 based on Foata normal form. 5/30 useless extension candidates. Maximal degree in co-relation 86. Up to 8 conditions per place. [2021-04-29 00:50:28,616 INFO L132 encePairwiseOnDemand]: 166/171 looper letters, 4 selfloop transitions, 4 changer transitions 2/32 dead transitions. [2021-04-29 00:50:28,616 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 32 transitions, 143 flow [2021-04-29 00:50:28,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:50:28,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:50:28,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 486 transitions. [2021-04-29 00:50:28,619 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5684210526315789 [2021-04-29 00:50:28,619 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 486 transitions. [2021-04-29 00:50:28,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 486 transitions. [2021-04-29 00:50:28,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:50:28,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 486 transitions. [2021-04-29 00:50:28,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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 00:50:28,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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 00:50:28,627 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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 00:50:28,627 INFO L185 Difference]: Start difference. First operand has 42 places, 29 transitions, 103 flow. Second operand 5 states and 486 transitions. [2021-04-29 00:50:28,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 32 transitions, 143 flow [2021-04-29 00:50:28,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 32 transitions, 125 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-04-29 00:50:28,630 INFO L241 Difference]: Finished difference. Result has 44 places, 29 transitions, 109 flow [2021-04-29 00:50:28,630 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=109, PETRI_PLACES=44, PETRI_TRANSITIONS=29} [2021-04-29 00:50:28,630 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -29 predicate places. [2021-04-29 00:50:28,630 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:50:28,631 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 29 transitions, 109 flow [2021-04-29 00:50:28,631 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 29 transitions, 109 flow [2021-04-29 00:50:28,632 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 29 transitions, 109 flow [2021-04-29 00:50:28,638 INFO L129 PetriNetUnfolder]: 1/35 cut-off events. [2021-04-29 00:50:28,639 INFO L130 PetriNetUnfolder]: For 25/27 co-relation queries the response was YES. [2021-04-29 00:50:28,639 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 35 events. 1/35 cut-off events. For 25/27 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 133 event pairs, 0 based on Foata normal form. 1/19 useless extension candidates. Maximal degree in co-relation 65. Up to 7 conditions per place. [2021-04-29 00:50:28,640 INFO L146 LiptonReduction]: Number of co-enabled transitions 366 [2021-04-29 00:50:28,644 INFO L158 LiptonReduction]: Checked pairs total: 12 [2021-04-29 00:50:28,644 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:50:28,644 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-04-29 00:50:28,646 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 29 transitions, 109 flow [2021-04-29 00:50:28,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 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 00:50:28,647 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:50:28,647 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:50:28,647 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:50:28,648 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:50:28,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:50:28,648 INFO L82 PathProgramCache]: Analyzing trace with hash 279838257, now seen corresponding path program 1 times [2021-04-29 00:50:28,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:50:28,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895047465] [2021-04-29 00:50:28,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:50:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:50:28,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:50:28,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:50:28,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:50:28,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:50:28,711 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-29 00:50:28,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:50:28,718 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 00:50:28,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895047465] [2021-04-29 00:50:28,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:50:28,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:50:28,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754172451] [2021-04-29 00:50:28,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:50:28,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:50:28,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:50:28,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:50:28,724 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 171 [2021-04-29 00:50:28,725 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 29 transitions, 109 flow. Second operand has 5 states, 5 states have (on average 95.8) internal successors, (479), 5 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:50:28,725 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:50:28,725 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 171 [2021-04-29 00:50:28,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:50:28,750 INFO L129 PetriNetUnfolder]: 0/37 cut-off events. [2021-04-29 00:50:28,750 INFO L130 PetriNetUnfolder]: For 48/51 co-relation queries the response was YES. [2021-04-29 00:50:28,751 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 37 events. 0/37 cut-off events. For 48/51 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 137 event pairs, 0 based on Foata normal form. 3/21 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-04-29 00:50:28,751 INFO L132 encePairwiseOnDemand]: 167/171 looper letters, 2 selfloop transitions, 3 changer transitions 13/29 dead transitions. [2021-04-29 00:50:28,751 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 29 transitions, 123 flow [2021-04-29 00:50:28,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:50:28,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:50:28,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 388 transitions. [2021-04-29 00:50:28,753 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5672514619883041 [2021-04-29 00:50:28,753 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 388 transitions. [2021-04-29 00:50:28,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 388 transitions. [2021-04-29 00:50:28,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:50:28,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 388 transitions. [2021-04-29 00:50:28,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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 00:50:28,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 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 00:50:28,758 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 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 00:50:28,758 INFO L185 Difference]: Start difference. First operand has 43 places, 29 transitions, 109 flow. Second operand 4 states and 388 transitions. [2021-04-29 00:50:28,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 29 transitions, 123 flow [2021-04-29 00:50:28,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 29 transitions, 108 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-04-29 00:50:28,762 INFO L241 Difference]: Finished difference. Result has 43 places, 16 transitions, 72 flow [2021-04-29 00:50:28,762 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=72, PETRI_PLACES=43, PETRI_TRANSITIONS=16} [2021-04-29 00:50:28,762 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -30 predicate places. [2021-04-29 00:50:28,762 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:50:28,763 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 16 transitions, 72 flow [2021-04-29 00:50:28,763 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 16 transitions, 72 flow [2021-04-29 00:50:28,763 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 16 transitions, 72 flow [2021-04-29 00:50:28,767 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-04-29 00:50:28,767 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-04-29 00:50:28,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 16 events. 0/16 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 20 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-29 00:50:28,768 INFO L146 LiptonReduction]: Number of co-enabled transitions 64 [2021-04-29 00:50:28,769 INFO L158 LiptonReduction]: Checked pairs total: 10 [2021-04-29 00:50:28,769 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:50:28,769 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-04-29 00:50:28,771 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 16 transitions, 72 flow [2021-04-29 00:50:28,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 95.8) internal successors, (479), 5 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:50:28,771 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:50:28,772 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:50:28,772 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:50:28,772 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:50:28,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:50:28,772 INFO L82 PathProgramCache]: Analyzing trace with hash 650775255, now seen corresponding path program 1 times [2021-04-29 00:50:28,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:50:28,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088175447] [2021-04-29 00:50:28,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:50:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:50:28,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:50:28,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:50:28,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:50:28,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:50:28,881 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-29 00:50:28,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:50:28,889 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 00:50:28,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088175447] [2021-04-29 00:50:28,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:50:28,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:50:28,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706249925] [2021-04-29 00:50:28,891 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:50:28,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:50:28,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:50:28,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:50:28,895 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 171 [2021-04-29 00:50:28,896 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 16 transitions, 72 flow. Second operand has 5 states, 5 states have (on average 95.8) internal successors, (479), 5 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:50:28,896 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:50:28,896 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 171 [2021-04-29 00:50:28,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:50:28,911 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-04-29 00:50:28,911 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2021-04-29 00:50:28,911 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 15 events. 0/15 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 13 event pairs, 0 based on Foata normal form. 2/13 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-29 00:50:28,912 INFO L132 encePairwiseOnDemand]: 168/171 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2021-04-29 00:50:28,912 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 15 transitions, 68 flow [2021-04-29 00:50:28,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:50:28,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:50:28,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 386 transitions. [2021-04-29 00:50:28,915 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.564327485380117 [2021-04-29 00:50:28,915 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 386 transitions. [2021-04-29 00:50:28,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 386 transitions. [2021-04-29 00:50:28,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:50:28,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 386 transitions. [2021-04-29 00:50:28,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 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 00:50:28,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 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 00:50:28,920 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 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 00:50:28,921 INFO L185 Difference]: Start difference. First operand has 32 places, 16 transitions, 72 flow. Second operand 4 states and 386 transitions. [2021-04-29 00:50:28,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 15 transitions, 68 flow [2021-04-29 00:50:28,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 15 transitions, 42 flow, removed 2 selfloop flow, removed 11 redundant places. [2021-04-29 00:50:28,923 INFO L241 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2021-04-29 00:50:28,923 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2021-04-29 00:50:28,924 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -50 predicate places. [2021-04-29 00:50:28,924 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:50:28,924 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 0 transitions, 0 flow [2021-04-29 00:50:28,924 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 0 transitions, 0 flow [2021-04-29 00:50:28,925 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:50:28,925 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:50:28,925 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:50:28,925 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 00:50:28,926 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:50:28,926 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:50:28,926 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:50:28,926 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:50:28,928 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:50:28,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 95.8) internal successors, (479), 5 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:50:28,929 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:50:28,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:50:28 BasicIcfg [2021-04-29 00:50:28,935 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:50:28,936 INFO L168 Benchmark]: Toolchain (without parser) took 18474.94 ms. Allocated memory was 304.1 MB in the beginning and 474.0 MB in the end (delta: 169.9 MB). Free memory was 278.2 MB in the beginning and 395.7 MB in the end (delta: -117.5 MB). Peak memory consumption was 54.4 MB. Max. memory is 16.0 GB. [2021-04-29 00:50:28,937 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 304.1 MB. Free memory was 275.1 MB in the beginning and 275.0 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:50:28,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 829.88 ms. Allocated memory is still 304.1 MB. Free memory was 275.0 MB in the beginning and 276.4 MB in the end (delta: -1.4 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.0 GB. [2021-04-29 00:50:28,938 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.40 ms. Allocated memory is still 304.1 MB. Free memory was 276.4 MB in the beginning and 274.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:50:28,938 INFO L168 Benchmark]: Boogie Preprocessor took 76.02 ms. Allocated memory is still 304.1 MB. Free memory was 274.3 MB in the beginning and 273.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:50:28,939 INFO L168 Benchmark]: RCFGBuilder took 570.81 ms. Allocated memory is still 304.1 MB. Free memory was 273.2 MB in the beginning and 251.2 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-04-29 00:50:28,939 INFO L168 Benchmark]: TraceAbstraction took 16848.35 ms. Allocated memory was 304.1 MB in the beginning and 474.0 MB in the end (delta: 169.9 MB). Free memory was 250.1 MB in the beginning and 395.7 MB in the end (delta: -145.5 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.0 GB. [2021-04-29 00:50:28,942 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 304.1 MB. Free memory was 275.1 MB in the beginning and 275.0 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 829.88 ms. Allocated memory is still 304.1 MB. Free memory was 275.0 MB in the beginning and 276.4 MB in the end (delta: -1.4 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 90.40 ms. Allocated memory is still 304.1 MB. Free memory was 276.4 MB in the beginning and 274.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 76.02 ms. Allocated memory is still 304.1 MB. Free memory was 274.3 MB in the beginning and 273.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 570.81 ms. Allocated memory is still 304.1 MB. Free memory was 273.2 MB in the beginning and 251.2 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 16848.35 ms. Allocated memory was 304.1 MB in the beginning and 474.0 MB in the end (delta: 169.9 MB). Free memory was 250.1 MB in the beginning and 395.7 MB in the end (delta: -145.5 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14932.0ms, 55 PlacesBefore, 73 PlacesAfterwards, 49 TransitionsBefore, 66 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 8 FixpointIterations, 69 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 110 TotalNumberOfCompositions, 4326 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1481, positive: 1293, positive conditional: 1293, positive unconditional: 0, negative: 188, negative conditional: 188, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 594, positive: 553, positive conditional: 0, positive unconditional: 553, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 594, positive: 553, positive conditional: 0, positive unconditional: 553, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 594, positive: 548, positive conditional: 0, positive unconditional: 548, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 333, positive: 51, positive conditional: 0, positive unconditional: 51, negative: 282, negative conditional: 0, negative unconditional: 282, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1481, positive: 740, positive conditional: 740, positive unconditional: 0, negative: 147, negative conditional: 147, negative unconditional: 0, unknown: 594, unknown conditional: 594, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 584, Positive cache size: 543, Positive conditional cache size: 543, Positive unconditional cache size: 0, Negative cache size: 41, Negative conditional cache size: 41, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.0ms, 74 PlacesBefore, 37 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 254 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 87, positive: 74, positive conditional: 74, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 10, positive conditional: 1, positive unconditional: 9, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, positive: 10, positive conditional: 1, positive unconditional: 9, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 87, positive: 64, positive conditional: 64, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 597, Positive cache size: 553, Positive conditional cache size: 553, Positive unconditional cache size: 0, Negative cache size: 44, Negative conditional cache size: 44, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.0ms, 43 PlacesBefore, 42 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 466 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 141 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 47, positive conditional: 47, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 54, positive: 43, positive conditional: 43, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 602, Positive cache size: 557, Positive conditional cache size: 557, Positive unconditional cache size: 0, Negative cache size: 45, Negative conditional cache size: 45, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.1ms, 44 PlacesBefore, 42 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 370 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 132 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 52, positive: 45, positive conditional: 45, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 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: 52, positive: 43, positive conditional: 43, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 604, Positive cache size: 559, Positive conditional cache size: 559, Positive unconditional cache size: 0, Negative cache size: 45, Negative conditional cache size: 45, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.8ms, 44 PlacesBefore, 43 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 366 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 12 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 604, Positive cache size: 559, Positive conditional cache size: 559, Positive unconditional cache size: 0, Negative cache size: 45, Negative conditional cache size: 45, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.4ms, 43 PlacesBefore, 32 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 64 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 10 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 604, Positive cache size: 559, Positive conditional cache size: 559, Positive unconditional cache size: 0, Negative cache size: 45, Negative conditional cache size: 45, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8ms, 23 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): 604, Positive cache size: 559, Positive conditional cache size: 559, Positive unconditional cache size: 0, Negative cache size: 45, Negative conditional cache size: 45, 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 3 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 22.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 16649.8ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 492.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15082.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 48 SDtfs, 19 SDslu, 6 SDs, 0 SdLazy, 45 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 121.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 91.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=0, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 22.0ms SsaConstructionTime, 190.7ms SatisfiabilityAnalysisTime, 483.3ms InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 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...