/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/safe036_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:48:48,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:48:48,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:48:48,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:48:48,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:48:48,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:48:48,130 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:48:48,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:48:48,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:48:48,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:48:48,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:48:48,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:48:48,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:48:48,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:48:48,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:48:48,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:48:48,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:48:48,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:48:48,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:48:48,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:48:48,181 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 00:48:48,238 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:48:48,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:48:48,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:48:48,242 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:48:48,242 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:48:48,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:48:48,243 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:48:48,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:48:48,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:48:48,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:48:48,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:48:48,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:48:48,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:48:48,245 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:48:48,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:48:48,246 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:48:48,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:48:48,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:48:48,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:48:48,247 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:48:48,247 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:48:48,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:48:48,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:48:48,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:48:48,248 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:48:48,248 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:48:48,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:48:48,249 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:48:48,249 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:48:48,249 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:48:48,249 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:48:48,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:48:48,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:48:48,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:48:48,690 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:48:48,691 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:48:48,692 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_rmo.opt.i [2021-04-29 00:48:48,774 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e96a4310f/96a7d13a7ebb445f9a922cab00351a48/FLAGc4940bf2d [2021-04-29 00:48:49,442 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:48:49,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_rmo.opt.i [2021-04-29 00:48:49,457 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e96a4310f/96a7d13a7ebb445f9a922cab00351a48/FLAGc4940bf2d [2021-04-29 00:48:49,758 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e96a4310f/96a7d13a7ebb445f9a922cab00351a48 [2021-04-29 00:48:49,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:48:49,826 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:48:49,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:48:49,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:48:49,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:48:49,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:48:49" (1/1) ... [2021-04-29 00:48:49,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19becf6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:49, skipping insertion in model container [2021-04-29 00:48:49,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:48:49" (1/1) ... [2021-04-29 00:48:49,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:48:49,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:48:50,069 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/safe036_rmo.opt.i[949,962] [2021-04-29 00:48:50,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:48:50,287 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:48:50,301 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/safe036_rmo.opt.i[949,962] [2021-04-29 00:48:50,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:48:50,483 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:48:50,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:50 WrapperNode [2021-04-29 00:48:50,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:48:50,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:48:50,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:48:50,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:48:50,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:50" (1/1) ... [2021-04-29 00:48:50,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:50" (1/1) ... [2021-04-29 00:48:50,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:48:50,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:48:50,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:48:50,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:48:50,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:50" (1/1) ... [2021-04-29 00:48:50,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:50" (1/1) ... [2021-04-29 00:48:50,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:50" (1/1) ... [2021-04-29 00:48:50,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:50" (1/1) ... [2021-04-29 00:48:50,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:50" (1/1) ... [2021-04-29 00:48:50,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:50" (1/1) ... [2021-04-29 00:48:50,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:50" (1/1) ... [2021-04-29 00:48:50,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:48:50,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:48:50,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:48:50,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:48:50,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:50" (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 00:48:50,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:48:50,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:48:50,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:48:50,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:48:50,698 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:48:50,698 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:48:50,700 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:48:50,700 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:48:50,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:48:50,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:48:50,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:48:50,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:48:50,703 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 00:48:51,116 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:48:51,116 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:48:51,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:48:51 BoogieIcfgContainer [2021-04-29 00:48:51,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:48:51,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:48:51,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:48:51,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:48:51,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:48:49" (1/3) ... [2021-04-29 00:48:51,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11153b00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:48:51, skipping insertion in model container [2021-04-29 00:48:51,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:50" (2/3) ... [2021-04-29 00:48:51,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11153b00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:48:51, skipping insertion in model container [2021-04-29 00:48:51,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:48:51" (3/3) ... [2021-04-29 00:48:51,127 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_rmo.opt.i [2021-04-29 00:48:51,134 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:48:51,139 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:48:51,140 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:48:51,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,177 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,178 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,178 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,179 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,179 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,179 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,181 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,181 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,181 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,182 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,182 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,182 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,183 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,183 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,184 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,187 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,187 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,187 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,188 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,197 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,198 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,200 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,200 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:51,205 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:48:51,231 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-29 00:48:51,274 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:48:51,275 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:48:51,275 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:48:51,275 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:48:51,275 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:48:51,275 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:48:51,276 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:48:51,276 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:48:51,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 132 flow [2021-04-29 00:48:51,365 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2021-04-29 00:48:51,365 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:48:51,373 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 37 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 00:48:51,373 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 61 transitions, 132 flow [2021-04-29 00:48:51,393 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 49 transitions, 104 flow [2021-04-29 00:48:51,397 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:48:51,418 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 49 transitions, 104 flow [2021-04-29 00:48:51,425 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 49 transitions, 104 flow [2021-04-29 00:48:51,428 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 49 transitions, 104 flow [2021-04-29 00:48:51,463 INFO L129 PetriNetUnfolder]: 1/49 cut-off events. [2021-04-29 00:48:51,463 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:48:51,464 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 31 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 00:48:51,467 INFO L146 LiptonReduction]: Number of co-enabled transitions 456 [2021-04-29 00:48:55,300 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:48:55,569 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:48:55,868 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:48:56,028 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:48:56,212 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:48:56,377 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:48:57,518 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:48:57,710 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:48:57,893 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:48:58,077 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:48:59,558 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:48:59,772 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:48:59,963 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:49:00,173 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:49:00,345 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:49:00,515 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:49:00,929 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:49:01,091 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:49:01,624 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-04-29 00:49:01,922 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-04-29 00:49:02,172 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:49:02,385 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:49:02,598 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:49:02,813 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:49:03,065 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-04-29 00:49:03,347 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-04-29 00:49:03,549 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:49:03,700 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:49:03,783 INFO L158 LiptonReduction]: Checked pairs total: 4286 [2021-04-29 00:49:03,784 INFO L160 LiptonReduction]: Total number of compositions: 108 [2021-04-29 00:49:03,788 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12393 [2021-04-29 00:49:03,807 INFO L129 PetriNetUnfolder]: 0/58 cut-off events. [2021-04-29 00:49:03,807 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:49:03,807 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:49:03,808 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-29 00:49:03,808 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:49:03,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:49:03,814 INFO L82 PathProgramCache]: Analyzing trace with hash -434415720, now seen corresponding path program 1 times [2021-04-29 00:49:03,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:49:03,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284674803] [2021-04-29 00:49:03,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:49:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:49:04,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:49:04,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:49:04,071 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:49:04,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:49:04,081 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 00:49:04,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284674803] [2021-04-29 00:49:04,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:49:04,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:49:04,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007090520] [2021-04-29 00:49:04,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:49:04,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:49:04,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:49:04,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:49:04,112 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 169 [2021-04-29 00:49:04,116 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 66 transitions, 138 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 00:49:04,116 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:49:04,116 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 169 [2021-04-29 00:49:04,117 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:49:04,358 INFO L129 PetriNetUnfolder]: 408/849 cut-off events. [2021-04-29 00:49:04,359 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:49:04,362 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1679 conditions, 849 events. 408/849 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 6204 event pairs, 144 based on Foata normal form. 16/223 useless extension candidates. Maximal degree in co-relation 1627. Up to 592 conditions per place. [2021-04-29 00:49:04,367 INFO L132 encePairwiseOnDemand]: 134/169 looper letters, 8 selfloop transitions, 7 changer transitions 68/93 dead transitions. [2021-04-29 00:49:04,367 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 93 transitions, 324 flow [2021-04-29 00:49:04,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:49:04,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:49:04,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 546 transitions. [2021-04-29 00:49:04,393 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6461538461538462 [2021-04-29 00:49:04,393 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 546 transitions. [2021-04-29 00:49:04,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 546 transitions. [2021-04-29 00:49:04,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:49:04,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 546 transitions. [2021-04-29 00:49:04,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.2) internal successors, (546), 5 states have internal predecessors, (546), 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 00:49:04,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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 00:49:04,417 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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 00:49:04,419 INFO L185 Difference]: Start difference. First operand has 73 places, 66 transitions, 138 flow. Second operand 5 states and 546 transitions. [2021-04-29 00:49:04,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 93 transitions, 324 flow [2021-04-29 00:49:04,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 93 transitions, 322 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:49:04,425 INFO L241 Difference]: Finished difference. Result has 78 places, 25 transitions, 105 flow [2021-04-29 00:49:04,428 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, 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=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=105, PETRI_PLACES=78, PETRI_TRANSITIONS=25} [2021-04-29 00:49:04,428 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, 5 predicate places. [2021-04-29 00:49:04,429 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:49:04,429 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 25 transitions, 105 flow [2021-04-29 00:49:04,429 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 25 transitions, 105 flow [2021-04-29 00:49:04,430 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 25 transitions, 105 flow [2021-04-29 00:49:04,441 INFO L129 PetriNetUnfolder]: 45/101 cut-off events. [2021-04-29 00:49:04,441 INFO L130 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2021-04-29 00:49:04,441 INFO L84 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 101 events. 45/101 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 465 event pairs, 18 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 266. Up to 76 conditions per place. [2021-04-29 00:49:04,443 INFO L146 LiptonReduction]: Number of co-enabled transitions 138 [2021-04-29 00:49:04,451 INFO L158 LiptonReduction]: Checked pairs total: 160 [2021-04-29 00:49:04,452 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:49:04,452 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-04-29 00:49:04,454 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 25 transitions, 105 flow [2021-04-29 00:49:04,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 00:49:04,454 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:49:04,454 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:49:04,455 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:49:04,455 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:49:04,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:49:04,455 INFO L82 PathProgramCache]: Analyzing trace with hash -62563635, now seen corresponding path program 1 times [2021-04-29 00:49:04,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:49:04,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479883626] [2021-04-29 00:49:04,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:49:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:49:04,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:49:04,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:49:04,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:49:04,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:49:04,609 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:49:04,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:49:04,617 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 00:49:04,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479883626] [2021-04-29 00:49:04,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:49:04,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:49:04,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341492291] [2021-04-29 00:49:04,619 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:49:04,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:49:04,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:49:04,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:49:04,627 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 169 [2021-04-29 00:49:04,628 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 105 flow. Second operand has 5 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 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 00:49:04,628 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:49:04,628 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 169 [2021-04-29 00:49:04,628 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:49:04,699 INFO L129 PetriNetUnfolder]: 18/77 cut-off events. [2021-04-29 00:49:04,699 INFO L130 PetriNetUnfolder]: For 44/56 co-relation queries the response was YES. [2021-04-29 00:49:04,700 INFO L84 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 77 events. 18/77 cut-off events. For 44/56 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 327 event pairs, 0 based on Foata normal form. 17/62 useless extension candidates. Maximal degree in co-relation 260. Up to 58 conditions per place. [2021-04-29 00:49:04,700 INFO L132 encePairwiseOnDemand]: 160/169 looper letters, 2 selfloop transitions, 13 changer transitions 9/32 dead transitions. [2021-04-29 00:49:04,700 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 32 transitions, 189 flow [2021-04-29 00:49:04,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 00:49:04,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 00:49:04,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 588 transitions. [2021-04-29 00:49:04,703 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5798816568047337 [2021-04-29 00:49:04,704 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 588 transitions. [2021-04-29 00:49:04,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 588 transitions. [2021-04-29 00:49:04,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:49:04,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 588 transitions. [2021-04-29 00:49:04,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 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 00:49:04,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 169.0) internal successors, (1183), 7 states have internal predecessors, (1183), 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 00:49:04,711 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 169.0) internal successors, (1183), 7 states have internal predecessors, (1183), 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 00:49:04,711 INFO L185 Difference]: Start difference. First operand has 29 places, 25 transitions, 105 flow. Second operand 6 states and 588 transitions. [2021-04-29 00:49:04,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 32 transitions, 189 flow [2021-04-29 00:49:04,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 32 transitions, 156 flow, removed 13 selfloop flow, removed 2 redundant places. [2021-04-29 00:49:04,715 INFO L241 Difference]: Finished difference. Result has 35 places, 23 transitions, 124 flow [2021-04-29 00:49:04,715 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=124, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2021-04-29 00:49:04,715 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -38 predicate places. [2021-04-29 00:49:04,716 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:49:04,716 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 23 transitions, 124 flow [2021-04-29 00:49:04,716 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 23 transitions, 124 flow [2021-04-29 00:49:04,717 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 23 transitions, 124 flow [2021-04-29 00:49:04,723 INFO L129 PetriNetUnfolder]: 9/51 cut-off events. [2021-04-29 00:49:04,723 INFO L130 PetriNetUnfolder]: For 36/42 co-relation queries the response was YES. [2021-04-29 00:49:04,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 51 events. 9/51 cut-off events. For 36/42 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 198 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 162. Up to 34 conditions per place. [2021-04-29 00:49:04,724 INFO L146 LiptonReduction]: Number of co-enabled transitions 84 [2021-04-29 00:49:04,728 INFO L158 LiptonReduction]: Checked pairs total: 112 [2021-04-29 00:49:04,728 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:49:04,728 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-04-29 00:49:04,730 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 124 flow [2021-04-29 00:49:04,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 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 00:49:04,731 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:49:04,731 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:49:04,731 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:49:04,731 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:49:04,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:49:04,732 INFO L82 PathProgramCache]: Analyzing trace with hash -33914205, now seen corresponding path program 1 times [2021-04-29 00:49:04,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:49:04,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610849537] [2021-04-29 00:49:04,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:49:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:49:04,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:49:04,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:49:04,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:49:04,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:49:04,791 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-29 00:49:04,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:49:04,797 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 00:49:04,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610849537] [2021-04-29 00:49:04,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:49:04,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:49:04,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041391552] [2021-04-29 00:49:04,799 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:49:04,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:49:04,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:49:04,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:49:04,801 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 169 [2021-04-29 00:49:04,802 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 124 flow. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 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 00:49:04,802 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:49:04,803 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 169 [2021-04-29 00:49:04,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:49:04,833 INFO L129 PetriNetUnfolder]: 19/92 cut-off events. [2021-04-29 00:49:04,834 INFO L130 PetriNetUnfolder]: For 129/141 co-relation queries the response was YES. [2021-04-29 00:49:04,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 92 events. 19/92 cut-off events. For 129/141 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 469 event pairs, 0 based on Foata normal form. 9/63 useless extension candidates. Maximal degree in co-relation 310. Up to 70 conditions per place. [2021-04-29 00:49:04,838 INFO L132 encePairwiseOnDemand]: 165/169 looper letters, 4 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2021-04-29 00:49:04,838 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 25 transitions, 142 flow [2021-04-29 00:49:04,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:49:04,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:49:04,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 384 transitions. [2021-04-29 00:49:04,841 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5680473372781065 [2021-04-29 00:49:04,841 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 384 transitions. [2021-04-29 00:49:04,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 384 transitions. [2021-04-29 00:49:04,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:49:04,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 384 transitions. [2021-04-29 00:49:04,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 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 00:49:04,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 169.0) internal successors, (845), 5 states have internal predecessors, (845), 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 00:49:04,846 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 169.0) internal successors, (845), 5 states have internal predecessors, (845), 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 00:49:04,846 INFO L185 Difference]: Start difference. First operand has 31 places, 23 transitions, 124 flow. Second operand 4 states and 384 transitions. [2021-04-29 00:49:04,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 25 transitions, 142 flow [2021-04-29 00:49:04,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 25 transitions, 110 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-04-29 00:49:04,849 INFO L241 Difference]: Finished difference. Result has 31 places, 25 transitions, 113 flow [2021-04-29 00:49:04,849 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=113, PETRI_PLACES=31, PETRI_TRANSITIONS=25} [2021-04-29 00:49:04,849 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -42 predicate places. [2021-04-29 00:49:04,849 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:49:04,850 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 25 transitions, 113 flow [2021-04-29 00:49:04,850 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 25 transitions, 113 flow [2021-04-29 00:49:04,850 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 25 transitions, 113 flow [2021-04-29 00:49:04,859 INFO L129 PetriNetUnfolder]: 19/92 cut-off events. [2021-04-29 00:49:04,859 INFO L130 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2021-04-29 00:49:04,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 92 events. 19/92 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 457 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 214. Up to 55 conditions per place. [2021-04-29 00:49:04,861 INFO L146 LiptonReduction]: Number of co-enabled transitions 90 [2021-04-29 00:49:04,891 INFO L158 LiptonReduction]: Checked pairs total: 39 [2021-04-29 00:49:04,892 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-29 00:49:04,892 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-04-29 00:49:04,893 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 121 flow [2021-04-29 00:49:04,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 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 00:49:04,894 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:49:04,894 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:49:04,894 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:49:04,895 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:49:04,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:49:04,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1039400158, now seen corresponding path program 1 times [2021-04-29 00:49:04,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:49:04,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401154605] [2021-04-29 00:49:04,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:49:04,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:49:04,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:49:04,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:49:04,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:49:04,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:49:04,963 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-29 00:49:04,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:49:04,970 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 00:49:04,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401154605] [2021-04-29 00:49:04,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:49:04,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:49:04,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855532429] [2021-04-29 00:49:04,971 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:49:04,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:49:04,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:49:04,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:49:04,976 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 170 [2021-04-29 00:49:04,977 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 121 flow. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 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 00:49:04,977 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:49:04,978 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 170 [2021-04-29 00:49:04,978 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:49:05,006 INFO L129 PetriNetUnfolder]: 20/95 cut-off events. [2021-04-29 00:49:05,007 INFO L130 PetriNetUnfolder]: For 58/60 co-relation queries the response was YES. [2021-04-29 00:49:05,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 95 events. 20/95 cut-off events. For 58/60 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 520 event pairs, 0 based on Foata normal form. 11/62 useless extension candidates. Maximal degree in co-relation 241. Up to 55 conditions per place. [2021-04-29 00:49:05,010 INFO L132 encePairwiseOnDemand]: 165/170 looper letters, 0 selfloop transitions, 0 changer transitions 27/27 dead transitions. [2021-04-29 00:49:05,011 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 27 transitions, 146 flow [2021-04-29 00:49:05,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:49:05,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:49:05,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 384 transitions. [2021-04-29 00:49:05,014 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5647058823529412 [2021-04-29 00:49:05,014 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 384 transitions. [2021-04-29 00:49:05,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 384 transitions. [2021-04-29 00:49:05,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:49:05,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 384 transitions. [2021-04-29 00:49:05,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 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 00:49:05,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 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 00:49:05,019 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 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 00:49:05,019 INFO L185 Difference]: Start difference. First operand has 32 places, 26 transitions, 121 flow. Second operand 4 states and 384 transitions. [2021-04-29 00:49:05,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 27 transitions, 146 flow [2021-04-29 00:49:05,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 27 transitions, 135 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-04-29 00:49:05,021 INFO L241 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2021-04-29 00:49:05,021 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2021-04-29 00:49:05,021 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -41 predicate places. [2021-04-29 00:49:05,022 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:49:05,022 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 0 transitions, 0 flow [2021-04-29 00:49:05,022 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 0 transitions, 0 flow [2021-04-29 00:49:05,022 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:49:05,022 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:49:05,023 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:49:05,023 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 00:49:05,023 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:49:05,023 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:49:05,023 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:49:05,023 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:49:05,025 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:49:05,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 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 00:49:05,026 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:49:05,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:49:05 BasicIcfg [2021-04-29 00:49:05,030 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:49:05,032 INFO L168 Benchmark]: Toolchain (without parser) took 15262.72 ms. Allocated memory was 302.0 MB in the beginning and 450.9 MB in the end (delta: 148.9 MB). Free memory was 275.6 MB in the beginning and 320.9 MB in the end (delta: -45.2 MB). Peak memory consumption was 105.3 MB. Max. memory is 16.0 GB. [2021-04-29 00:49:05,032 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 302.0 MB. Free memory was 287.0 MB in the beginning and 286.9 MB in the end (delta: 64.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:49:05,033 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.26 ms. Allocated memory is still 302.0 MB. Free memory was 272.5 MB in the beginning and 272.7 MB in the end (delta: -251.4 kB). Peak memory consumption was 24.8 MB. Max. memory is 16.0 GB. [2021-04-29 00:49:05,034 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.86 ms. Allocated memory is still 302.0 MB. Free memory was 272.7 MB in the beginning and 270.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:49:05,034 INFO L168 Benchmark]: Boogie Preprocessor took 57.60 ms. Allocated memory is still 302.0 MB. Free memory was 270.7 MB in the beginning and 269.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:49:05,035 INFO L168 Benchmark]: RCFGBuilder took 519.10 ms. Allocated memory is still 302.0 MB. Free memory was 269.5 MB in the beginning and 249.7 MB in the end (delta: 19.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-04-29 00:49:05,036 INFO L168 Benchmark]: TraceAbstraction took 13909.85 ms. Allocated memory was 302.0 MB in the beginning and 450.9 MB in the end (delta: 148.9 MB). Free memory was 249.1 MB in the beginning and 320.9 MB in the end (delta: -71.7 MB). Peak memory consumption was 78.4 MB. Max. memory is 16.0 GB. [2021-04-29 00:49:05,039 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 302.0 MB. Free memory was 287.0 MB in the beginning and 286.9 MB in the end (delta: 64.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 655.26 ms. Allocated memory is still 302.0 MB. Free memory was 272.5 MB in the beginning and 272.7 MB in the end (delta: -251.4 kB). Peak memory consumption was 24.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 52.86 ms. Allocated memory is still 302.0 MB. Free memory was 272.7 MB in the beginning and 270.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 57.60 ms. Allocated memory is still 302.0 MB. Free memory was 270.7 MB in the beginning and 269.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 519.10 ms. Allocated memory is still 302.0 MB. Free memory was 269.5 MB in the beginning and 249.7 MB in the end (delta: 19.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 13909.85 ms. Allocated memory was 302.0 MB in the beginning and 450.9 MB in the end (delta: 148.9 MB). Free memory was 249.1 MB in the beginning and 320.9 MB in the end (delta: -71.7 MB). Peak memory consumption was 78.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12358.9ms, 55 PlacesBefore, 73 PlacesAfterwards, 49 TransitionsBefore, 66 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 8 FixpointIterations, 69 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 108 TotalNumberOfCompositions, 4286 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1594, positive: 1406, positive conditional: 1406, 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: 611, positive: 567, positive conditional: 0, positive unconditional: 567, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 611, positive: 567, positive conditional: 0, positive unconditional: 567, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 611, positive: 553, positive conditional: 0, positive unconditional: 553, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 58, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 280, positive: 65, positive conditional: 0, positive unconditional: 65, negative: 215, negative conditional: 0, negative unconditional: 215, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1594, positive: 839, positive conditional: 839, positive unconditional: 0, negative: 144, negative conditional: 144, negative unconditional: 0, unknown: 611, unknown conditional: 611, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 607, Positive cache size: 563, Positive conditional cache size: 563, 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: 22.4ms, 78 PlacesBefore, 29 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 138 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 160 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 49, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 49, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 621, Positive cache size: 575, Positive conditional cache size: 575, Positive unconditional cache size: 0, Negative cache size: 46, Negative conditional cache size: 46, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.9ms, 35 PlacesBefore, 31 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 112 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 41, positive: 25, positive conditional: 25, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 8, 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: 8, positive: 8, positive conditional: 8, 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: 8, positive: 8, positive conditional: 0, positive unconditional: 8, 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: 41, positive: 17, positive conditional: 17, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 629, Positive cache size: 583, Positive conditional cache size: 583, Positive unconditional cache size: 0, Negative cache size: 46, Negative conditional cache size: 46, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.7ms, 31 PlacesBefore, 32 PlacesAfterwards, 25 TransitionsBefore, 26 TransitionsAfterwards, 90 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 39 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 23, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 6, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 6, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 23, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 641, Positive cache size: 593, Positive conditional cache size: 593, Positive unconditional cache size: 0, Negative cache size: 48, Negative conditional cache size: 48, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2ms, 32 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): 641, Positive cache size: 593, Positive conditional cache size: 593, Positive unconditional cache size: 0, Negative cache size: 48, Negative conditional cache size: 48, 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: 11.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 13760.9ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 516.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12519.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 37 SDtfs, 17 SDslu, 30 SDs, 0 SdLazy, 115 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 152.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 64.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=0, InterpolantAutomatonStates: 19, 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: 11.7ms SsaConstructionTime, 130.3ms SatisfiabilityAnalysisTime, 318.4ms InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 137 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...