/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/safe022_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:19:16,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:19:16,159 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:19:16,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:19:16,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:19:16,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:19:16,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:19:16,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:19:16,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:19:16,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:19:16,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:19:16,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:19:16,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:19:16,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:19:16,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:19:16,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:19:16,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:19:16,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:19:16,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:19:16,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:19:16,253 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 00:19:16,304 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:19:16,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:19:16,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:19:16,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:19:16,310 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:19:16,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:19:16,310 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:19:16,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:19:16,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:19:16,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:19:16,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:19:16,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:19:16,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:19:16,313 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:19:16,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:19:16,314 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:19:16,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:19:16,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:19:16,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:19:16,314 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:19:16,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:19:16,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:19:16,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:19:16,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:19:16,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:19:16,316 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:19:16,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:19:16,316 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:19:16,316 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:19:16,317 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:19:16,317 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:19:16,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:19:16,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:19:16,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:19:16,725 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:19:16,726 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:19:16,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.opt.i [2021-04-29 00:19:16,835 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af810d49d/84789225b6194cab999d88b4567484da/FLAG2c94887ed [2021-04-29 00:19:17,657 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:19:17,658 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.opt.i [2021-04-29 00:19:17,680 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af810d49d/84789225b6194cab999d88b4567484da/FLAG2c94887ed [2021-04-29 00:19:17,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af810d49d/84789225b6194cab999d88b4567484da [2021-04-29 00:19:17,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:19:17,949 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:19:17,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:19:17,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:19:17,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:19:17,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:19:17" (1/1) ... [2021-04-29 00:19:17,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@118d757a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:17, skipping insertion in model container [2021-04-29 00:19:17,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:19:17" (1/1) ... [2021-04-29 00:19:17,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:19:18,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:19:18,192 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/safe022_tso.opt.i[949,962] [2021-04-29 00:19:18,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:19:18,402 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:19:18,420 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/safe022_tso.opt.i[949,962] [2021-04-29 00:19:18,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:19:18,671 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:19:18,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:18 WrapperNode [2021-04-29 00:19:18,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:19:18,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:19:18,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:19:18,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:19:18,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:18" (1/1) ... [2021-04-29 00:19:18,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:18" (1/1) ... [2021-04-29 00:19:18,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:19:18,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:19:18,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:19:18,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:19:18,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:18" (1/1) ... [2021-04-29 00:19:18,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:18" (1/1) ... [2021-04-29 00:19:18,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:18" (1/1) ... [2021-04-29 00:19:18,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:18" (1/1) ... [2021-04-29 00:19:18,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:18" (1/1) ... [2021-04-29 00:19:18,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:18" (1/1) ... [2021-04-29 00:19:18,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:18" (1/1) ... [2021-04-29 00:19:18,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:19:18,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:19:18,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:19:18,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:19:18,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:18" (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 00:19:18,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:19:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:19:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:19:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:19:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:19:18,881 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:19:18,882 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:19:18,883 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:19:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:19:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:19:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:19:18,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:19:18,886 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 00:19:19,332 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:19:19,332 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:19:19,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:19:19 BoogieIcfgContainer [2021-04-29 00:19:19,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:19:19,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:19:19,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:19:19,342 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:19:19,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:19:17" (1/3) ... [2021-04-29 00:19:19,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e573c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:19:19, skipping insertion in model container [2021-04-29 00:19:19,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:18" (2/3) ... [2021-04-29 00:19:19,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e573c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:19:19, skipping insertion in model container [2021-04-29 00:19:19,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:19:19" (3/3) ... [2021-04-29 00:19:19,346 INFO L111 eAbstractionObserver]: Analyzing ICFG safe022_tso.opt.i [2021-04-29 00:19:19,353 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:19:19,358 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:19:19,359 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:19:19,395 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,395 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,395 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,395 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,396 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,396 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,396 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,397 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,397 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,397 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,397 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,398 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,399 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,399 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,399 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,399 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,400 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,400 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,400 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,400 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,402 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,402 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,402 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,402 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,404 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,406 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,406 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,407 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,412 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,412 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,414 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,414 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:19,417 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:19:19,438 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-29 00:19:19,465 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:19:19,465 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:19:19,465 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:19:19,465 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:19:19,465 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:19:19,465 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:19:19,466 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:19:19,466 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:19:19,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 132 flow [2021-04-29 00:19:19,529 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2021-04-29 00:19:19,529 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:19:19,533 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 00:19:19,533 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 61 transitions, 132 flow [2021-04-29 00:19:19,539 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 49 transitions, 104 flow [2021-04-29 00:19:19,540 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:19:19,558 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 49 transitions, 104 flow [2021-04-29 00:19:19,562 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 49 transitions, 104 flow [2021-04-29 00:19:19,564 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 49 transitions, 104 flow [2021-04-29 00:19:19,586 INFO L129 PetriNetUnfolder]: 1/49 cut-off events. [2021-04-29 00:19:19,586 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:19:19,586 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 00:19:19,589 INFO L146 LiptonReduction]: Number of co-enabled transitions 456 [2021-04-29 00:19:23,936 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:19:24,082 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:19:24,249 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:19:24,539 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:19:24,683 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:19:24,842 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:19:25,002 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:19:26,238 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:19:26,414 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:19:26,589 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:19:26,783 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:19:26,951 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:19:28,280 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:19:28,627 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:19:28,855 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:19:29,073 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:19:29,290 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:19:29,489 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:19:29,682 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:19:29,898 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:19:30,070 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:19:30,345 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-04-29 00:19:30,671 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-04-29 00:19:30,967 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-04-29 00:19:31,253 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-04-29 00:19:31,507 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:19:31,737 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:19:31,966 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:19:32,206 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:19:32,397 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:19:32,560 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:19:32,852 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:19:32,932 INFO L158 LiptonReduction]: Checked pairs total: 4326 [2021-04-29 00:19:32,932 INFO L160 LiptonReduction]: Total number of compositions: 110 [2021-04-29 00:19:32,936 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13397 [2021-04-29 00:19:32,957 INFO L129 PetriNetUnfolder]: 0/58 cut-off events. [2021-04-29 00:19:32,957 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:19:32,957 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:19:32,958 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-29 00:19:32,958 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:19:32,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:19:32,964 INFO L82 PathProgramCache]: Analyzing trace with hash -405816546, now seen corresponding path program 1 times [2021-04-29 00:19:32,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:19:32,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894268323] [2021-04-29 00:19:32,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:19:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:19:33,296 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-29 00:19:33,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:19:33,309 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 00:19:33,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894268323] [2021-04-29 00:19:33,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:19:33,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:19:33,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449270540] [2021-04-29 00:19:33,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:19:33,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:19:33,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:19:33,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:19:33,342 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 171 [2021-04-29 00:19:33,346 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 66 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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 00:19:33,346 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:19:33,347 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 171 [2021-04-29 00:19:33,348 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:19:33,442 INFO L129 PetriNetUnfolder]: 12/105 cut-off events. [2021-04-29 00:19:33,442 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:19:33,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 105 events. 12/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 539 event pairs, 2 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 109. Up to 29 conditions per place. [2021-04-29 00:19:33,444 INFO L132 encePairwiseOnDemand]: 154/171 looper letters, 2 selfloop transitions, 2 changer transitions 54/71 dead transitions. [2021-04-29 00:19:33,445 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 71 transitions, 204 flow [2021-04-29 00:19:33,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:19:33,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:19:33,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 333 transitions. [2021-04-29 00:19:33,462 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6491228070175439 [2021-04-29 00:19:33,463 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 333 transitions. [2021-04-29 00:19:33,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 333 transitions. [2021-04-29 00:19:33,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:19:33,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 333 transitions. [2021-04-29 00:19:33,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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 00:19:33,482 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 00:19:33,482 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 00:19:33,485 INFO L185 Difference]: Start difference. First operand has 73 places, 66 transitions, 138 flow. Second operand 3 states and 333 transitions. [2021-04-29 00:19:33,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 71 transitions, 204 flow [2021-04-29 00:19:33,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 71 transitions, 202 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:19:33,492 INFO L241 Difference]: Finished difference. Result has 74 places, 17 transitions, 46 flow [2021-04-29 00:19:33,495 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=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=74, PETRI_TRANSITIONS=17} [2021-04-29 00:19:33,496 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, 1 predicate places. [2021-04-29 00:19:33,496 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:19:33,496 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 17 transitions, 46 flow [2021-04-29 00:19:33,497 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 17 transitions, 46 flow [2021-04-29 00:19:33,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 25 places, 17 transitions, 46 flow [2021-04-29 00:19:33,501 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-04-29 00:19:33,502 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:19:33,503 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 27 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-29 00:19:33,503 INFO L146 LiptonReduction]: Number of co-enabled transitions 126 [2021-04-29 00:19:33,565 INFO L158 LiptonReduction]: Checked pairs total: 131 [2021-04-29 00:19:33,565 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:19:33,566 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 70 [2021-04-29 00:19:33,568 INFO L480 AbstractCegarLoop]: Abstraction has has 25 places, 17 transitions, 46 flow [2021-04-29 00:19:33,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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 00:19:33,569 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:19:33,569 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:19:33,569 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:19:33,569 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:19:33,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:19:33,572 INFO L82 PathProgramCache]: Analyzing trace with hash 304587534, now seen corresponding path program 1 times [2021-04-29 00:19:33,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:19:33,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231764893] [2021-04-29 00:19:33,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:19:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:19:33,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:19:33,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:19:33,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:19:33,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:19:33,708 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 00:19:33,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231764893] [2021-04-29 00:19:33,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:19:33,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:19:33,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332702550] [2021-04-29 00:19:33,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:19:33,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:19:33,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:19:33,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:19:33,714 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 171 [2021-04-29 00:19:33,715 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 17 transitions, 46 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 00:19:33,715 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:19:33,715 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 171 [2021-04-29 00:19:33,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:19:33,739 INFO L129 PetriNetUnfolder]: 0/26 cut-off events. [2021-04-29 00:19:33,739 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-29 00:19:33,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 26 events. 0/26 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 61 event pairs, 0 based on Foata normal form. 2/19 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-29 00:19:33,740 INFO L132 encePairwiseOnDemand]: 167/171 looper letters, 1 selfloop transitions, 3 changer transitions 2/18 dead transitions. [2021-04-29 00:19:33,740 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 18 transitions, 61 flow [2021-04-29 00:19:33,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:19:33,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:19:33,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 407 transitions. [2021-04-29 00:19:33,745 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5950292397660819 [2021-04-29 00:19:33,745 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 407 transitions. [2021-04-29 00:19:33,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 407 transitions. [2021-04-29 00:19:33,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:19:33,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 407 transitions. [2021-04-29 00:19:33,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 101.75) internal successors, (407), 4 states have internal predecessors, (407), 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 00:19:33,752 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 00:19:33,752 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 00:19:33,753 INFO L185 Difference]: Start difference. First operand has 25 places, 17 transitions, 46 flow. Second operand 4 states and 407 transitions. [2021-04-29 00:19:33,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 18 transitions, 61 flow [2021-04-29 00:19:33,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 55 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:19:33,754 INFO L241 Difference]: Finished difference. Result has 28 places, 16 transitions, 54 flow [2021-04-29 00:19:33,754 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=54, PETRI_PLACES=28, PETRI_TRANSITIONS=16} [2021-04-29 00:19:33,755 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -45 predicate places. [2021-04-29 00:19:33,755 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:19:33,756 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 16 transitions, 54 flow [2021-04-29 00:19:33,756 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 16 transitions, 54 flow [2021-04-29 00:19:33,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 16 transitions, 54 flow [2021-04-29 00:19:33,760 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-04-29 00:19:33,760 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 00:19:33,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 16 events. 0/16 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 23 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-29 00:19:33,761 INFO L146 LiptonReduction]: Number of co-enabled transitions 84 [2021-04-29 00:19:33,805 INFO L158 LiptonReduction]: Checked pairs total: 83 [2021-04-29 00:19:33,805 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-29 00:19:33,806 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51 [2021-04-29 00:19:33,807 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 16 transitions, 54 flow [2021-04-29 00:19:33,808 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 00:19:33,808 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:19:33,808 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:19:33,809 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:19:33,809 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:19:33,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:19:33,809 INFO L82 PathProgramCache]: Analyzing trace with hash 650739729, now seen corresponding path program 1 times [2021-04-29 00:19:33,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:19:33,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820916617] [2021-04-29 00:19:33,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:19:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:19:33,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:19:33,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:19:33,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:19:33,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:19:33,925 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 00:19:33,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820916617] [2021-04-29 00:19:33,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:19:33,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:19:33,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379100923] [2021-04-29 00:19:33,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:19:33,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:19:33,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:19:33,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:19:33,935 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 172 [2021-04-29 00:19:33,936 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 16 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 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 00:19:33,936 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:19:33,936 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 172 [2021-04-29 00:19:33,937 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:19:34,034 INFO L129 PetriNetUnfolder]: 54/123 cut-off events. [2021-04-29 00:19:34,034 INFO L130 PetriNetUnfolder]: For 143/147 co-relation queries the response was YES. [2021-04-29 00:19:34,035 INFO L84 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 123 events. 54/123 cut-off events. For 143/147 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 562 event pairs, 18 based on Foata normal form. 18/78 useless extension candidates. Maximal degree in co-relation 288. Up to 91 conditions per place. [2021-04-29 00:19:34,036 INFO L132 encePairwiseOnDemand]: 163/172 looper letters, 8 selfloop transitions, 7 changer transitions 14/35 dead transitions. [2021-04-29 00:19:34,036 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 35 transitions, 148 flow [2021-04-29 00:19:34,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:19:34,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:19:34,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 515 transitions. [2021-04-29 00:19:34,040 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5988372093023255 [2021-04-29 00:19:34,040 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 515 transitions. [2021-04-29 00:19:34,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 515 transitions. [2021-04-29 00:19:34,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:19:34,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 515 transitions. [2021-04-29 00:19:34,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 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 00:19:34,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 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 00:19:34,048 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 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 00:19:34,048 INFO L185 Difference]: Start difference. First operand has 27 places, 16 transitions, 54 flow. Second operand 5 states and 515 transitions. [2021-04-29 00:19:34,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 35 transitions, 148 flow [2021-04-29 00:19:34,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 35 transitions, 136 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-04-29 00:19:34,051 INFO L241 Difference]: Finished difference. Result has 30 places, 21 transitions, 103 flow [2021-04-29 00:19:34,051 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=103, PETRI_PLACES=30, PETRI_TRANSITIONS=21} [2021-04-29 00:19:34,051 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -43 predicate places. [2021-04-29 00:19:34,051 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:19:34,052 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 21 transitions, 103 flow [2021-04-29 00:19:34,052 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 21 transitions, 103 flow [2021-04-29 00:19:34,053 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 21 transitions, 103 flow [2021-04-29 00:19:34,065 INFO L129 PetriNetUnfolder]: 45/97 cut-off events. [2021-04-29 00:19:34,066 INFO L130 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2021-04-29 00:19:34,066 INFO L84 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 97 events. 45/97 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 388 event pairs, 18 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 279. Up to 76 conditions per place. [2021-04-29 00:19:34,068 INFO L146 LiptonReduction]: Number of co-enabled transitions 34 [2021-04-29 00:19:34,232 INFO L158 LiptonReduction]: Checked pairs total: 54 [2021-04-29 00:19:34,232 INFO L160 LiptonReduction]: Total number of compositions: 3 [2021-04-29 00:19:34,232 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 181 [2021-04-29 00:19:34,234 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 109 flow [2021-04-29 00:19:34,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 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 00:19:34,235 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:19:34,235 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:19:34,235 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:19:34,235 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:19:34,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:19:34,236 INFO L82 PathProgramCache]: Analyzing trace with hash 726182073, now seen corresponding path program 1 times [2021-04-29 00:19:34,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:19:34,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941196397] [2021-04-29 00:19:34,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:19:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:19:34,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:19:34,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:19:34,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:19:34,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:19:34,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:19:34,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:19:34,315 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 00:19:34,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941196397] [2021-04-29 00:19:34,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:19:34,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:19:34,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443174154] [2021-04-29 00:19:34,317 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:19:34,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:19:34,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:19:34,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:19:34,322 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 175 [2021-04-29 00:19:34,324 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 109 flow. Second operand has 5 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 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 00:19:34,324 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:19:34,325 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 175 [2021-04-29 00:19:34,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:19:34,406 INFO L129 PetriNetUnfolder]: 18/88 cut-off events. [2021-04-29 00:19:34,407 INFO L130 PetriNetUnfolder]: For 120/138 co-relation queries the response was YES. [2021-04-29 00:19:34,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 88 events. 18/88 cut-off events. For 120/138 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 422 event pairs, 0 based on Foata normal form. 22/73 useless extension candidates. Maximal degree in co-relation 305. Up to 64 conditions per place. [2021-04-29 00:19:34,408 INFO L132 encePairwiseOnDemand]: 163/175 looper letters, 2 selfloop transitions, 13 changer transitions 8/29 dead transitions. [2021-04-29 00:19:34,408 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 193 flow [2021-04-29 00:19:34,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 00:19:34,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 00:19:34,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 606 transitions. [2021-04-29 00:19:34,412 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5771428571428572 [2021-04-29 00:19:34,412 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 606 transitions. [2021-04-29 00:19:34,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 606 transitions. [2021-04-29 00:19:34,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:19:34,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 606 transitions. [2021-04-29 00:19:34,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.0) internal successors, (606), 6 states have internal predecessors, (606), 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 00:19:34,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 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 00:19:34,419 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 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 00:19:34,420 INFO L185 Difference]: Start difference. First operand has 28 places, 22 transitions, 109 flow. Second operand 6 states and 606 transitions. [2021-04-29 00:19:34,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 193 flow [2021-04-29 00:19:34,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 29 transitions, 160 flow, removed 13 selfloop flow, removed 2 redundant places. [2021-04-29 00:19:34,423 INFO L241 Difference]: Finished difference. Result has 34 places, 21 transitions, 129 flow [2021-04-29 00:19:34,424 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=129, PETRI_PLACES=34, PETRI_TRANSITIONS=21} [2021-04-29 00:19:34,424 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -39 predicate places. [2021-04-29 00:19:34,424 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:19:34,424 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 21 transitions, 129 flow [2021-04-29 00:19:34,425 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 21 transitions, 129 flow [2021-04-29 00:19:34,425 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 21 transitions, 129 flow [2021-04-29 00:19:34,432 INFO L129 PetriNetUnfolder]: 9/55 cut-off events. [2021-04-29 00:19:34,433 INFO L130 PetriNetUnfolder]: For 63/66 co-relation queries the response was YES. [2021-04-29 00:19:34,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 55 events. 9/55 cut-off events. For 63/66 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 197 event pairs, 0 based on Foata normal form. 1/37 useless extension candidates. Maximal degree in co-relation 183. Up to 34 conditions per place. [2021-04-29 00:19:34,434 INFO L146 LiptonReduction]: Number of co-enabled transitions 16 [2021-04-29 00:19:34,587 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:19:34,587 INFO L160 LiptonReduction]: Total number of compositions: 6 [2021-04-29 00:19:34,587 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 163 [2021-04-29 00:19:34,589 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 21 transitions, 129 flow [2021-04-29 00:19:34,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 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 00:19:34,590 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:19:34,590 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:19:34,590 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:19:34,590 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:19:34,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:19:34,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1104068109, now seen corresponding path program 1 times [2021-04-29 00:19:34,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:19:34,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579399844] [2021-04-29 00:19:34,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:19:34,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:19:34,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:19:34,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:19:34,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:19:34,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:19:34,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:19:34,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:19:34,645 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 00:19:34,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579399844] [2021-04-29 00:19:34,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:19:34,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:19:34,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691457071] [2021-04-29 00:19:34,646 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:19:34,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:19:34,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:19:34,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:19:34,649 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 181 [2021-04-29 00:19:34,650 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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 00:19:34,650 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:19:34,650 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 181 [2021-04-29 00:19:34,651 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:19:34,680 INFO L129 PetriNetUnfolder]: 9/46 cut-off events. [2021-04-29 00:19:34,681 INFO L130 PetriNetUnfolder]: For 111/114 co-relation queries the response was YES. [2021-04-29 00:19:34,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 46 events. 9/46 cut-off events. For 111/114 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 173 event pairs, 0 based on Foata normal form. 10/37 useless extension candidates. Maximal degree in co-relation 165. Up to 34 conditions per place. [2021-04-29 00:19:34,681 INFO L132 encePairwiseOnDemand]: 169/181 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2021-04-29 00:19:34,681 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 20 transitions, 143 flow [2021-04-29 00:19:34,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:19:34,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:19:34,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 441 transitions. [2021-04-29 00:19:34,684 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6091160220994475 [2021-04-29 00:19:34,684 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 441 transitions. [2021-04-29 00:19:34,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 441 transitions. [2021-04-29 00:19:34,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:19:34,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 441 transitions. [2021-04-29 00:19:34,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 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 00:19:34,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 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 00:19:34,689 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 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 00:19:34,689 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 129 flow. Second operand 4 states and 441 transitions. [2021-04-29 00:19:34,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 20 transitions, 143 flow [2021-04-29 00:19:34,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 20 transitions, 115 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-04-29 00:19:34,691 INFO L241 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2021-04-29 00:19:34,692 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2021-04-29 00:19:34,692 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -43 predicate places. [2021-04-29 00:19:34,692 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:19:34,692 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 0 transitions, 0 flow [2021-04-29 00:19:34,693 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 0 transitions, 0 flow [2021-04-29 00:19:34,693 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:19:34,693 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:19:34,693 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:19:34,693 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 00:19:34,693 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:19:34,694 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:19:34,694 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:19:34,694 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:19:34,695 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:19:34,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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 00:19:34,696 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:19:34,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:19:34 BasicIcfg [2021-04-29 00:19:34,701 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:19:34,702 INFO L168 Benchmark]: Toolchain (without parser) took 16793.73 ms. Allocated memory was 318.8 MB in the beginning and 469.8 MB in the end (delta: 151.0 MB). Free memory was 292.0 MB in the beginning and 428.9 MB in the end (delta: -137.0 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.0 GB. [2021-04-29 00:19:34,703 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 318.8 MB. Free memory was 287.0 MB in the beginning and 286.9 MB in the end (delta: 66.5 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:19:34,704 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.36 ms. Allocated memory is still 318.8 MB. Free memory was 288.8 MB in the beginning and 291.4 MB in the end (delta: -2.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.0 GB. [2021-04-29 00:19:34,704 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.70 ms. Allocated memory is still 318.8 MB. Free memory was 291.4 MB in the beginning and 289.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:19:34,705 INFO L168 Benchmark]: Boogie Preprocessor took 28.23 ms. Allocated memory is still 318.8 MB. Free memory was 289.3 MB in the beginning and 288.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:19:34,705 INFO L168 Benchmark]: RCFGBuilder took 583.46 ms. Allocated memory is still 318.8 MB. Free memory was 288.2 MB in the beginning and 267.3 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-04-29 00:19:34,706 INFO L168 Benchmark]: TraceAbstraction took 15363.84 ms. Allocated memory was 318.8 MB in the beginning and 469.8 MB in the end (delta: 151.0 MB). Free memory was 266.2 MB in the beginning and 428.9 MB in the end (delta: -162.7 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:19:34,709 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 318.8 MB. Free memory was 287.0 MB in the beginning and 286.9 MB in the end (delta: 66.5 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 719.36 ms. Allocated memory is still 318.8 MB. Free memory was 288.8 MB in the beginning and 291.4 MB in the end (delta: -2.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.70 ms. Allocated memory is still 318.8 MB. Free memory was 291.4 MB in the beginning and 289.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.23 ms. Allocated memory is still 318.8 MB. Free memory was 289.3 MB in the beginning and 288.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 583.46 ms. Allocated memory is still 318.8 MB. Free memory was 288.2 MB in the beginning and 267.3 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 15363.84 ms. Allocated memory was 318.8 MB in the beginning and 469.8 MB in the end (delta: 151.0 MB). Free memory was 266.2 MB in the beginning and 428.9 MB in the end (delta: -162.7 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13369.9ms, 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: 1656, positive: 1468, positive conditional: 1468, 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: 623, positive: 581, positive conditional: 0, positive unconditional: 581, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 623, positive: 581, positive conditional: 0, positive unconditional: 581, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 623, positive: 576, positive conditional: 0, positive unconditional: 576, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 47, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 247, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 209, negative conditional: 0, negative unconditional: 209, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1656, positive: 887, positive conditional: 887, positive unconditional: 0, negative: 146, negative conditional: 146, negative unconditional: 0, unknown: 623, unknown conditional: 623, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 614, Positive cache size: 572, Positive conditional cache size: 572, Positive unconditional cache size: 0, Negative cache size: 42, Negative conditional cache size: 42, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 68.7ms, 74 PlacesBefore, 25 PlacesAfterwards, 17 TransitionsBefore, 17 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 131 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 58, positive: 43, positive conditional: 43, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26, positive: 20, positive conditional: 4, positive unconditional: 16, negative: 6, negative conditional: 2, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 26, positive: 20, positive conditional: 4, positive unconditional: 16, negative: 6, negative conditional: 2, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 26, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 6, negative conditional: 2, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 56, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 30, negative conditional: 10, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 58, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 26, unknown conditional: 26, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 640, Positive cache size: 592, Positive conditional cache size: 592, 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: 49.2ms, 28 PlacesBefore, 27 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 83 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 23, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 23, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 646, Positive cache size: 597, Positive conditional cache size: 597, Positive unconditional cache size: 0, Negative cache size: 49, Negative conditional cache size: 49, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 180.2ms, 30 PlacesBefore, 28 PlacesAfterwards, 21 TransitionsBefore, 22 TransitionsAfterwards, 34 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 54 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 42, positive conditional: 42, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14, positive: 13, positive conditional: 12, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14, positive: 13, positive conditional: 12, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 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: 54, positive: 29, positive conditional: 29, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 660, Positive cache size: 610, Positive conditional cache size: 610, Positive unconditional cache size: 0, Negative cache size: 50, Negative conditional cache size: 50, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 162.4ms, 34 PlacesBefore, 31 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 2 FixpointIterations, 6 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 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): 660, Positive cache size: 610, Positive conditional cache size: 610, Positive unconditional cache size: 0, Negative cache size: 50, Negative conditional cache size: 50, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3ms, 30 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): 660, Positive cache size: 610, Positive conditional cache size: 610, Positive unconditional cache size: 0, Negative cache size: 50, Negative conditional cache size: 50, 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: 12.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 15237.7ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 479.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13478.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 37 SDtfs, 21 SDslu, 13 SDs, 0 SdLazy, 124 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 148.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 69.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=0, InterpolantAutomatonStates: 22, 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: 21.5ms SsaConstructionTime, 172.4ms SatisfiabilityAnalysisTime, 389.3ms InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 154 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...