/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 21:12:03,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 21:12:03,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 21:12:03,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 21:12:03,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 21:12:03,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 21:12:03,407 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 21:12:03,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 21:12:03,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 21:12:03,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 21:12:03,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 21:12:03,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 21:12:03,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 21:12:03,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 21:12:03,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 21:12:03,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 21:12:03,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 21:12:03,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 21:12:03,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 21:12:03,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 21:12:03,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 21:12:03,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 21:12:03,423 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 21:12:03,424 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 21:12:03,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-10 21:12:03,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-10 21:12:03,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-10 21:12:03,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-10 21:12:03,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-10 21:12:03,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-10 21:12:03,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 21:12:03,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 21:12:03,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 21:12:03,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 21:12:03,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 21:12:03,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 21:12:03,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 21:12:03,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 21:12:03,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 21:12:03,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 21:12:03,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 21:12:03,441 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-SemanticLbe.epf [2021-06-10 21:12:03,459 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 21:12:03,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 21:12:03,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 21:12:03,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 21:12:03,460 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 21:12:03,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 21:12:03,461 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 21:12:03,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 21:12:03,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 21:12:03,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 21:12:03,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 21:12:03,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 21:12:03,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 21:12:03,461 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 21:12:03,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 21:12:03,462 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 21:12:03,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 21:12:03,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 21:12:03,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 21:12:03,462 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 21:12:03,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 21:12:03,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 21:12:03,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 21:12:03,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 21:12:03,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 21:12:03,463 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 21:12:03,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 21:12:03,463 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 21:12:03,463 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 21:12:03,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 21:12:03,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 21:12:03,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 21:12:03,749 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-10 21:12:03,750 INFO L275 PluginConnector]: CDTParser initialized [2021-06-10 21:12:03,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i [2021-06-10 21:12:03,825 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f38a63c64/6857dc1d5d724d98af209bb74be63a01/FLAGf2fb82126 [2021-06-10 21:12:04,390 INFO L306 CDTParser]: Found 1 translation units. [2021-06-10 21:12:04,391 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i [2021-06-10 21:12:04,403 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f38a63c64/6857dc1d5d724d98af209bb74be63a01/FLAGf2fb82126 [2021-06-10 21:12:04,799 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f38a63c64/6857dc1d5d724d98af209bb74be63a01 [2021-06-10 21:12:04,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 21:12:04,803 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-10 21:12:04,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-10 21:12:04,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-10 21:12:04,816 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-10 21:12:04,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 09:12:04" (1/1) ... [2021-06-10 21:12:04,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13ed0e7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:12:04, skipping insertion in model container [2021-06-10 21:12:04,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.06 09:12:04" (1/1) ... [2021-06-10 21:12:04,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-10 21:12:04,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-10 21:12:05,022 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/safe009_tso.opt.i[949,962] [2021-06-10 21:12:05,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 21:12:05,205 INFO L203 MainTranslator]: Completed pre-run [2021-06-10 21:12:05,217 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/safe009_tso.opt.i[949,962] [2021-06-10 21:12:05,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-10 21:12:05,323 INFO L208 MainTranslator]: Completed translation [2021-06-10 21:12:05,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:12:05 WrapperNode [2021-06-10 21:12:05,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-10 21:12:05,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 21:12:05,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 21:12:05,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 21:12:05,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:12:05" (1/1) ... [2021-06-10 21:12:05,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:12:05" (1/1) ... [2021-06-10 21:12:05,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 21:12:05,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 21:12:05,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 21:12:05,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 21:12:05,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:12:05" (1/1) ... [2021-06-10 21:12:05,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:12:05" (1/1) ... [2021-06-10 21:12:05,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:12:05" (1/1) ... [2021-06-10 21:12:05,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:12:05" (1/1) ... [2021-06-10 21:12:05,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:12:05" (1/1) ... [2021-06-10 21:12:05,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:12:05" (1/1) ... [2021-06-10 21:12:05,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:12:05" (1/1) ... [2021-06-10 21:12:05,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 21:12:05,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 21:12:05,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 21:12:05,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 21:12:05,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:12:05" (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 [2021-06-10 21:12:05,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-10 21:12:05,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-10 21:12:05,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-10 21:12:05,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-10 21:12:05,501 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-10 21:12:05,501 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-10 21:12:05,501 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-10 21:12:05,502 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-10 21:12:05,502 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-10 21:12:05,502 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-10 21:12:05,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-10 21:12:05,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-10 21:12:05,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 21:12:05,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 21:12:05,504 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 21:12:05,934 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 21:12:05,934 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-10 21:12:05,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 09:12:05 BoogieIcfgContainer [2021-06-10 21:12:05,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 21:12:05,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 21:12:05,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 21:12:05,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 21:12:05,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.06 09:12:04" (1/3) ... [2021-06-10 21:12:05,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9e7958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 09:12:05, skipping insertion in model container [2021-06-10 21:12:05,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.06 09:12:05" (2/3) ... [2021-06-10 21:12:05,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9e7958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 09:12:05, skipping insertion in model container [2021-06-10 21:12:05,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 09:12:05" (3/3) ... [2021-06-10 21:12:05,942 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_tso.opt.i [2021-06-10 21:12:05,946 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 21:12:05,950 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-10 21:12:05,950 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 21:12:05,976 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,977 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,977 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,977 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,977 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,977 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,978 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,978 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,978 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,978 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,978 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,978 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,979 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,979 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,979 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,979 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,979 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,979 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,980 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,980 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,980 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,980 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,980 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,980 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,981 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,981 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,981 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,981 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,981 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,982 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,982 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,982 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,982 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,982 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,982 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,983 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,984 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,985 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,985 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,985 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,989 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,989 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,989 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,989 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,991 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,991 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,991 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,991 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 21:12:05,992 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-10 21:12:06,009 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-10 21:12:06,027 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 21:12:06,027 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 21:12:06,027 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 21:12:06,028 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 21:12:06,028 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 21:12:06,028 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 21:12:06,028 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 21:12:06,028 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 21:12:06,037 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2021-06-10 21:12:06,067 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-06-10 21:12:06,067 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:12:06,070 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-06-10 21:12:06,071 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 73 transitions, 161 flow [2021-06-10 21:12:06,074 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 58 transitions, 125 flow [2021-06-10 21:12:06,075 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-10 21:12:06,087 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 58 transitions, 125 flow [2021-06-10 21:12:06,090 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 58 transitions, 125 flow [2021-06-10 21:12:06,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 58 transitions, 125 flow [2021-06-10 21:12:06,108 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-06-10 21:12:06,108 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:12:06,109 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 58 events. 1/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-06-10 21:12:06,111 INFO L151 LiptonReduction]: Number of co-enabled transitions 812 [2021-06-10 21:12:06,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:06,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:12:06,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:06,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:12:06,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:06,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:12:06,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:06,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:12:06,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:06,382 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:12:06,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:06,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:12:06,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:12:06,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:06,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:12:06,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:06,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:12:06,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:06,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:12:06,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:06,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:12:06,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:06,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:12:06,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:06,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:12:06,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:06,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:12:06,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:06,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:12:06,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:06,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:12:06,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:12:06,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:06,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:12:06,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:06,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:12:06,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:12:06,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:06,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:12:07,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:07,058 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:12:07,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:07,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-10 21:12:07,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:12:07,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:07,101 INFO L147 QuantifierPusher]: treesize reduction 22, result has 4.3 percent of original size 1 [2021-06-10 21:12:07,159 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-06-10 21:12:07,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:12:07,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:07,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:12:07,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:07,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:12:07,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:12:07,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:07,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:12:07,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:07,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:12:07,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:07,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:12:07,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:07,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:12:07,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:07,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:12:07,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:07,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:12:07,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:07,583 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:12:07,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:07,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:12:07,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:12:07,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:07,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:12:07,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:07,835 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:12:07,837 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:07,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:12:07,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:12:07,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:07,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:12:08,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:08,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:12:08,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:08,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:12:08,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-10 21:12:08,423 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-06-10 21:12:08,638 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-06-10 21:12:08,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:08,709 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-10 21:12:08,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:08,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:12:08,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-10 21:12:08,718 INFO L163 LiptonReduction]: Checked pairs total: 1296 [2021-06-10 21:12:08,718 INFO L165 LiptonReduction]: Total number of compositions: 45 [2021-06-10 21:12:08,721 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2647 [2021-06-10 21:12:08,728 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2021-06-10 21:12:08,729 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:12:08,729 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:12:08,729 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:12:08,730 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:12:08,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:12:08,734 INFO L82 PathProgramCache]: Analyzing trace with hash -93026454, now seen corresponding path program 1 times [2021-06-10 21:12:08,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:12:08,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180633164] [2021-06-10 21:12:08,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:12:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:12:08,908 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-10 21:12:08,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:12:08,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:12:08,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180633164] [2021-06-10 21:12:08,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:12:08,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-10 21:12:08,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499489555] [2021-06-10 21:12:08,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 21:12:08,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:12:08,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 21:12:08,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 21:12:08,949 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 118 [2021-06-10 21:12:08,953 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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) [2021-06-10 21:12:08,953 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:12:08,953 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 118 [2021-06-10 21:12:08,954 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:12:08,994 INFO L129 PetriNetUnfolder]: 23/80 cut-off events. [2021-06-10 21:12:08,995 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 21:12:08,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 80 events. 23/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 318 event pairs, 11 based on Foata normal form. 3/78 useless extension candidates. Maximal degree in co-relation 133. Up to 44 conditions per place. [2021-06-10 21:12:08,998 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 4 selfloop transitions, 5 changer transitions 0/19 dead transitions. [2021-06-10 21:12:08,998 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 19 transitions, 65 flow [2021-06-10 21:12:08,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 21:12:09,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 21:12:09,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 277 transitions. [2021-06-10 21:12:09,015 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7824858757062146 [2021-06-10 21:12:09,015 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 277 transitions. [2021-06-10 21:12:09,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 277 transitions. [2021-06-10 21:12:09,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:12:09,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 277 transitions. [2021-06-10 21:12:09,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 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) [2021-06-10 21:12:09,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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) [2021-06-10 21:12:09,034 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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) [2021-06-10 21:12:09,036 INFO L185 Difference]: Start difference. First operand has 26 places, 16 transitions, 41 flow. Second operand 3 states and 277 transitions. [2021-06-10 21:12:09,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 19 transitions, 65 flow [2021-06-10 21:12:09,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 19 transitions, 62 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-10 21:12:09,043 INFO L241 Difference]: Finished difference. Result has 26 places, 19 transitions, 67 flow [2021-06-10 21:12:09,044 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=26, PETRI_TRANSITIONS=19} [2021-06-10 21:12:09,045 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2021-06-10 21:12:09,045 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 19 transitions, 67 flow [2021-06-10 21:12:09,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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) [2021-06-10 21:12:09,046 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:12:09,046 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:12:09,046 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-10 21:12:09,046 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:12:09,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:12:09,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1751671171, now seen corresponding path program 1 times [2021-06-10 21:12:09,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:12:09,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892752723] [2021-06-10 21:12:09,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:12:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:12:09,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:09,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:12:09,141 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-10 21:12:09,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:12:09,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:12:09,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892752723] [2021-06-10 21:12:09,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:12:09,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 21:12:09,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103912419] [2021-06-10 21:12:09,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:12:09,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:12:09,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:12:09,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:12:09,158 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 118 [2021-06-10 21:12:09,159 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 19 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 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) [2021-06-10 21:12:09,159 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:12:09,159 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 118 [2021-06-10 21:12:09,159 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:12:09,204 INFO L129 PetriNetUnfolder]: 15/61 cut-off events. [2021-06-10 21:12:09,204 INFO L130 PetriNetUnfolder]: For 14/43 co-relation queries the response was YES. [2021-06-10 21:12:09,205 INFO L84 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 61 events. 15/61 cut-off events. For 14/43 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 206 event pairs, 0 based on Foata normal form. 2/61 useless extension candidates. Maximal degree in co-relation 147. Up to 33 conditions per place. [2021-06-10 21:12:09,206 INFO L132 encePairwiseOnDemand]: 113/118 looper letters, 8 selfloop transitions, 7 changer transitions 0/25 dead transitions. [2021-06-10 21:12:09,206 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 25 transitions, 124 flow [2021-06-10 21:12:09,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-10 21:12:09,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-10 21:12:09,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2021-06-10 21:12:09,208 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7817796610169492 [2021-06-10 21:12:09,209 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 369 transitions. [2021-06-10 21:12:09,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 369 transitions. [2021-06-10 21:12:09,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:12:09,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 369 transitions. [2021-06-10 21:12:09,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 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) [2021-06-10 21:12:09,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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) [2021-06-10 21:12:09,218 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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) [2021-06-10 21:12:09,218 INFO L185 Difference]: Start difference. First operand has 26 places, 19 transitions, 67 flow. Second operand 4 states and 369 transitions. [2021-06-10 21:12:09,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 25 transitions, 124 flow [2021-06-10 21:12:09,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 25 transitions, 116 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-10 21:12:09,220 INFO L241 Difference]: Finished difference. Result has 30 places, 23 transitions, 106 flow [2021-06-10 21:12:09,221 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=30, PETRI_TRANSITIONS=23} [2021-06-10 21:12:09,221 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2021-06-10 21:12:09,221 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 23 transitions, 106 flow [2021-06-10 21:12:09,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 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) [2021-06-10 21:12:09,222 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:12:09,222 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:12:09,222 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-10 21:12:09,222 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:12:09,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:12:09,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1411146540, now seen corresponding path program 1 times [2021-06-10 21:12:09,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:12:09,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131126308] [2021-06-10 21:12:09,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:12:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:12:09,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:09,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:12:09,301 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-10 21:12:09,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:12:09,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:12:09,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131126308] [2021-06-10 21:12:09,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:12:09,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 21:12:09,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798924391] [2021-06-10 21:12:09,310 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:12:09,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:12:09,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:12:09,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:12:09,315 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 118 [2021-06-10 21:12:09,316 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 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) [2021-06-10 21:12:09,316 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:12:09,316 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 118 [2021-06-10 21:12:09,316 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:12:09,340 INFO L129 PetriNetUnfolder]: 10/50 cut-off events. [2021-06-10 21:12:09,340 INFO L130 PetriNetUnfolder]: For 38/81 co-relation queries the response was YES. [2021-06-10 21:12:09,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 50 events. 10/50 cut-off events. For 38/81 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 162 event pairs, 2 based on Foata normal form. 8/57 useless extension candidates. Maximal degree in co-relation 140. Up to 25 conditions per place. [2021-06-10 21:12:09,341 INFO L132 encePairwiseOnDemand]: 113/118 looper letters, 11 selfloop transitions, 7 changer transitions 0/28 dead transitions. [2021-06-10 21:12:09,341 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 28 transitions, 175 flow [2021-06-10 21:12:09,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-10 21:12:09,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-10 21:12:09,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 367 transitions. [2021-06-10 21:12:09,343 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.777542372881356 [2021-06-10 21:12:09,343 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 367 transitions. [2021-06-10 21:12:09,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 367 transitions. [2021-06-10 21:12:09,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:12:09,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 367 transitions. [2021-06-10 21:12:09,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 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) [2021-06-10 21:12:09,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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) [2021-06-10 21:12:09,346 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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) [2021-06-10 21:12:09,346 INFO L185 Difference]: Start difference. First operand has 30 places, 23 transitions, 106 flow. Second operand 4 states and 367 transitions. [2021-06-10 21:12:09,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 28 transitions, 175 flow [2021-06-10 21:12:09,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 28 transitions, 175 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-10 21:12:09,351 INFO L241 Difference]: Finished difference. Result has 36 places, 26 transitions, 164 flow [2021-06-10 21:12:09,351 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2021-06-10 21:12:09,352 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 10 predicate places. [2021-06-10 21:12:09,352 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 164 flow [2021-06-10 21:12:09,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 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) [2021-06-10 21:12:09,352 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:12:09,352 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:12:09,352 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-10 21:12:09,352 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:12:09,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:12:09,354 INFO L82 PathProgramCache]: Analyzing trace with hash 795866215, now seen corresponding path program 1 times [2021-06-10 21:12:09,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:12:09,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612117217] [2021-06-10 21:12:09,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:12:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:12:09,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:09,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:12:09,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:09,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:12:09,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:12:09,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612117217] [2021-06-10 21:12:09,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:12:09,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 21:12:09,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693032865] [2021-06-10 21:12:09,435 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:12:09,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:12:09,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:12:09,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:12:09,436 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 118 [2021-06-10 21:12:09,437 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 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) [2021-06-10 21:12:09,437 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:12:09,437 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 118 [2021-06-10 21:12:09,437 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:12:09,461 INFO L129 PetriNetUnfolder]: 8/58 cut-off events. [2021-06-10 21:12:09,461 INFO L130 PetriNetUnfolder]: For 105/133 co-relation queries the response was YES. [2021-06-10 21:12:09,462 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 58 events. 8/58 cut-off events. For 105/133 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 232 event pairs, 2 based on Foata normal form. 5/61 useless extension candidates. Maximal degree in co-relation 178. Up to 26 conditions per place. [2021-06-10 21:12:09,463 INFO L132 encePairwiseOnDemand]: 113/118 looper letters, 5 selfloop transitions, 6 changer transitions 5/28 dead transitions. [2021-06-10 21:12:09,463 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 28 transitions, 215 flow [2021-06-10 21:12:09,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-10 21:12:09,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-10 21:12:09,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 379 transitions. [2021-06-10 21:12:09,465 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8029661016949152 [2021-06-10 21:12:09,465 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 379 transitions. [2021-06-10 21:12:09,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 379 transitions. [2021-06-10 21:12:09,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:12:09,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 379 transitions. [2021-06-10 21:12:09,468 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-10 21:12:09,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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) [2021-06-10 21:12:09,470 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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) [2021-06-10 21:12:09,470 INFO L185 Difference]: Start difference. First operand has 36 places, 26 transitions, 164 flow. Second operand 4 states and 379 transitions. [2021-06-10 21:12:09,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 28 transitions, 215 flow [2021-06-10 21:12:09,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 28 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-10 21:12:09,474 INFO L241 Difference]: Finished difference. Result has 39 places, 23 transitions, 147 flow [2021-06-10 21:12:09,474 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=147, PETRI_PLACES=39, PETRI_TRANSITIONS=23} [2021-06-10 21:12:09,475 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 13 predicate places. [2021-06-10 21:12:09,475 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 23 transitions, 147 flow [2021-06-10 21:12:09,475 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 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) [2021-06-10 21:12:09,476 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:12:09,476 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:12:09,476 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-10 21:12:09,476 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:12:09,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:12:09,477 INFO L82 PathProgramCache]: Analyzing trace with hash 795925735, now seen corresponding path program 2 times [2021-06-10 21:12:09,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:12:09,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188064038] [2021-06-10 21:12:09,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:12:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:12:09,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:09,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:12:09,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:12:09,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188064038] [2021-06-10 21:12:09,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:12:09,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-10 21:12:09,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955793797] [2021-06-10 21:12:09,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-10 21:12:09,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:12:09,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-10 21:12:09,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-10 21:12:09,509 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 118 [2021-06-10 21:12:09,510 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 23 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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) [2021-06-10 21:12:09,510 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:12:09,510 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 118 [2021-06-10 21:12:09,510 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:12:09,522 INFO L129 PetriNetUnfolder]: 5/41 cut-off events. [2021-06-10 21:12:09,522 INFO L130 PetriNetUnfolder]: For 67/67 co-relation queries the response was YES. [2021-06-10 21:12:09,523 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 41 events. 5/41 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 127 event pairs, 1 based on Foata normal form. 1/42 useless extension candidates. Maximal degree in co-relation 125. Up to 17 conditions per place. [2021-06-10 21:12:09,523 INFO L132 encePairwiseOnDemand]: 115/118 looper letters, 1 selfloop transitions, 3 changer transitions 0/23 dead transitions. [2021-06-10 21:12:09,523 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 23 transitions, 155 flow [2021-06-10 21:12:09,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-10 21:12:09,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-10 21:12:09,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2021-06-10 21:12:09,527 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8418079096045198 [2021-06-10 21:12:09,527 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2021-06-10 21:12:09,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2021-06-10 21:12:09,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:12:09,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2021-06-10 21:12:09,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2021-06-10 21:12:09,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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) [2021-06-10 21:12:09,531 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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) [2021-06-10 21:12:09,531 INFO L185 Difference]: Start difference. First operand has 39 places, 23 transitions, 147 flow. Second operand 3 states and 298 transitions. [2021-06-10 21:12:09,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 23 transitions, 155 flow [2021-06-10 21:12:09,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 23 transitions, 128 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-06-10 21:12:09,534 INFO L241 Difference]: Finished difference. Result has 36 places, 23 transitions, 131 flow [2021-06-10 21:12:09,534 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=131, PETRI_PLACES=36, PETRI_TRANSITIONS=23} [2021-06-10 21:12:09,534 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 10 predicate places. [2021-06-10 21:12:09,535 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 23 transitions, 131 flow [2021-06-10 21:12:09,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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) [2021-06-10 21:12:09,535 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:12:09,535 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:12:09,535 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-10 21:12:09,535 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:12:09,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:12:09,536 INFO L82 PathProgramCache]: Analyzing trace with hash -2069156605, now seen corresponding path program 1 times [2021-06-10 21:12:09,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:12:09,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434873250] [2021-06-10 21:12:09,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:12:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:12:09,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:09,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-10 21:12:09,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:09,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:12:09,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:09,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:12:09,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:12:09,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434873250] [2021-06-10 21:12:09,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:12:09,596 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 21:12:09,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704623784] [2021-06-10 21:12:09,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:12:09,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:12:09,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:12:09,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:12:09,597 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 118 [2021-06-10 21:12:09,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 23 transitions, 131 flow. Second operand has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 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) [2021-06-10 21:12:09,598 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:12:09,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 118 [2021-06-10 21:12:09,598 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:12:09,621 INFO L129 PetriNetUnfolder]: 2/43 cut-off events. [2021-06-10 21:12:09,622 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-06-10 21:12:09,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 43 events. 2/43 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 149 event pairs, 0 based on Foata normal form. 3/46 useless extension candidates. Maximal degree in co-relation 121. Up to 15 conditions per place. [2021-06-10 21:12:09,622 INFO L132 encePairwiseOnDemand]: 114/118 looper letters, 5 selfloop transitions, 3 changer transitions 3/23 dead transitions. [2021-06-10 21:12:09,622 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 23 transitions, 153 flow [2021-06-10 21:12:09,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 21:12:09,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 21:12:09,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 470 transitions. [2021-06-10 21:12:09,624 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7966101694915254 [2021-06-10 21:12:09,624 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 470 transitions. [2021-06-10 21:12:09,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 470 transitions. [2021-06-10 21:12:09,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:12:09,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 470 transitions. [2021-06-10 21:12:09,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2021-06-10 21:12:09,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 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) [2021-06-10 21:12:09,628 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 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) [2021-06-10 21:12:09,628 INFO L185 Difference]: Start difference. First operand has 36 places, 23 transitions, 131 flow. Second operand 5 states and 470 transitions. [2021-06-10 21:12:09,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 23 transitions, 153 flow [2021-06-10 21:12:09,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 23 transitions, 147 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-10 21:12:09,629 INFO L241 Difference]: Finished difference. Result has 40 places, 20 transitions, 112 flow [2021-06-10 21:12:09,629 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=112, PETRI_PLACES=40, PETRI_TRANSITIONS=20} [2021-06-10 21:12:09,629 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 14 predicate places. [2021-06-10 21:12:09,629 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 20 transitions, 112 flow [2021-06-10 21:12:09,630 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 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) [2021-06-10 21:12:09,630 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:12:09,630 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:12:09,630 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-10 21:12:09,630 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:12:09,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:12:09,631 INFO L82 PathProgramCache]: Analyzing trace with hash -648502617, now seen corresponding path program 1 times [2021-06-10 21:12:09,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:12:09,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755548812] [2021-06-10 21:12:09,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:12:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:12:09,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:09,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:12:09,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:09,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:12:09,684 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-10 21:12:09,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-10 21:12:09,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:12:09,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755548812] [2021-06-10 21:12:09,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:12:09,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 21:12:09,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132699401] [2021-06-10 21:12:09,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-10 21:12:09,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:12:09,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-10 21:12:09,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-10 21:12:09,699 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 118 [2021-06-10 21:12:09,699 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 20 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 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) [2021-06-10 21:12:09,699 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:12:09,700 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 118 [2021-06-10 21:12:09,700 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:12:09,724 INFO L129 PetriNetUnfolder]: 3/38 cut-off events. [2021-06-10 21:12:09,724 INFO L130 PetriNetUnfolder]: For 106/108 co-relation queries the response was YES. [2021-06-10 21:12:09,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 38 events. 3/38 cut-off events. For 106/108 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 95 event pairs, 0 based on Foata normal form. 4/42 useless extension candidates. Maximal degree in co-relation 119. Up to 12 conditions per place. [2021-06-10 21:12:09,725 INFO L132 encePairwiseOnDemand]: 113/118 looper letters, 3 selfloop transitions, 4 changer transitions 7/23 dead transitions. [2021-06-10 21:12:09,725 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 23 transitions, 167 flow [2021-06-10 21:12:09,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 21:12:09,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 21:12:09,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 442 transitions. [2021-06-10 21:12:09,727 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7491525423728813 [2021-06-10 21:12:09,727 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 442 transitions. [2021-06-10 21:12:09,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 442 transitions. [2021-06-10 21:12:09,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:12:09,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 442 transitions. [2021-06-10 21:12:09,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 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) [2021-06-10 21:12:09,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 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) [2021-06-10 21:12:09,730 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 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) [2021-06-10 21:12:09,730 INFO L185 Difference]: Start difference. First operand has 40 places, 20 transitions, 112 flow. Second operand 5 states and 442 transitions. [2021-06-10 21:12:09,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 23 transitions, 167 flow [2021-06-10 21:12:09,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 23 transitions, 135 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-06-10 21:12:09,732 INFO L241 Difference]: Finished difference. Result has 37 places, 16 transitions, 81 flow [2021-06-10 21:12:09,732 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=81, PETRI_PLACES=37, PETRI_TRANSITIONS=16} [2021-06-10 21:12:09,733 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2021-06-10 21:12:09,733 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 16 transitions, 81 flow [2021-06-10 21:12:09,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 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) [2021-06-10 21:12:09,733 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:12:09,733 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:12:09,733 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-10 21:12:09,733 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:12:09,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:12:09,734 INFO L82 PathProgramCache]: Analyzing trace with hash 379479371, now seen corresponding path program 1 times [2021-06-10 21:12:09,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:12:09,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742652632] [2021-06-10 21:12:09,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:12:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:12:09,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:09,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:12:09,781 INFO L142 QuantifierPusher]: treesize reduction 13, result has 45.8 percent of original size [2021-06-10 21:12:09,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-06-10 21:12:09,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:12:09,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742652632] [2021-06-10 21:12:09,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:12:09,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-10 21:12:09,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709789773] [2021-06-10 21:12:09,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-10 21:12:09,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:12:09,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-10 21:12:09,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-10 21:12:09,792 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 118 [2021-06-10 21:12:09,792 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 16 transitions, 81 flow. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 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) [2021-06-10 21:12:09,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:12:09,793 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 118 [2021-06-10 21:12:09,793 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:12:09,826 INFO L129 PetriNetUnfolder]: 23/64 cut-off events. [2021-06-10 21:12:09,826 INFO L130 PetriNetUnfolder]: For 95/108 co-relation queries the response was YES. [2021-06-10 21:12:09,827 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 64 events. 23/64 cut-off events. For 95/108 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 185 event pairs, 5 based on Foata normal form. 4/58 useless extension candidates. Maximal degree in co-relation 155. Up to 27 conditions per place. [2021-06-10 21:12:09,828 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 6 selfloop transitions, 4 changer transitions 3/23 dead transitions. [2021-06-10 21:12:09,828 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 23 transitions, 121 flow [2021-06-10 21:12:09,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-10 21:12:09,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-10 21:12:09,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2021-06-10 21:12:09,830 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7860169491525424 [2021-06-10 21:12:09,830 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2021-06-10 21:12:09,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2021-06-10 21:12:09,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:12:09,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2021-06-10 21:12:09,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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) [2021-06-10 21:12:09,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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) [2021-06-10 21:12:09,834 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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) [2021-06-10 21:12:09,834 INFO L185 Difference]: Start difference. First operand has 37 places, 16 transitions, 81 flow. Second operand 4 states and 371 transitions. [2021-06-10 21:12:09,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 23 transitions, 121 flow [2021-06-10 21:12:09,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 23 transitions, 90 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-06-10 21:12:09,836 INFO L241 Difference]: Finished difference. Result has 33 places, 18 transitions, 78 flow [2021-06-10 21:12:09,836 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=78, PETRI_PLACES=33, PETRI_TRANSITIONS=18} [2021-06-10 21:12:09,836 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2021-06-10 21:12:09,836 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 18 transitions, 78 flow [2021-06-10 21:12:09,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 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) [2021-06-10 21:12:09,837 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:12:09,837 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:12:09,837 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-10 21:12:09,837 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:12:09,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:12:09,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1121022911, now seen corresponding path program 1 times [2021-06-10 21:12:09,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:12:09,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416646403] [2021-06-10 21:12:09,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:12:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:12:09,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:09,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:12:09,906 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-10 21:12:09,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 21:12:09,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:09,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:12:09,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:12:09,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416646403] [2021-06-10 21:12:09,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:12:09,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-10 21:12:09,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520647868] [2021-06-10 21:12:09,915 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-10 21:12:09,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:12:09,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-10 21:12:09,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-10 21:12:09,916 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 118 [2021-06-10 21:12:09,917 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 18 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 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) [2021-06-10 21:12:09,917 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:12:09,917 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 118 [2021-06-10 21:12:09,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:12:09,966 INFO L129 PetriNetUnfolder]: 9/39 cut-off events. [2021-06-10 21:12:09,966 INFO L130 PetriNetUnfolder]: For 47/69 co-relation queries the response was YES. [2021-06-10 21:12:09,967 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 39 events. 9/39 cut-off events. For 47/69 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 78 event pairs, 0 based on Foata normal form. 7/42 useless extension candidates. Maximal degree in co-relation 115. Up to 22 conditions per place. [2021-06-10 21:12:09,968 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 2 selfloop transitions, 6 changer transitions 7/25 dead transitions. [2021-06-10 21:12:09,968 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 25 transitions, 137 flow [2021-06-10 21:12:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-10 21:12:09,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-10 21:12:09,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 462 transitions. [2021-06-10 21:12:09,970 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7830508474576271 [2021-06-10 21:12:09,970 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 462 transitions. [2021-06-10 21:12:09,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 462 transitions. [2021-06-10 21:12:09,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:12:09,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 462 transitions. [2021-06-10 21:12:09,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.4) internal successors, (462), 5 states have internal predecessors, (462), 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) [2021-06-10 21:12:09,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 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) [2021-06-10 21:12:09,973 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 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) [2021-06-10 21:12:09,973 INFO L185 Difference]: Start difference. First operand has 33 places, 18 transitions, 78 flow. Second operand 5 states and 462 transitions. [2021-06-10 21:12:09,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 25 transitions, 137 flow [2021-06-10 21:12:09,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 25 transitions, 125 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-06-10 21:12:09,975 INFO L241 Difference]: Finished difference. Result has 36 places, 18 transitions, 94 flow [2021-06-10 21:12:09,975 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=94, PETRI_PLACES=36, PETRI_TRANSITIONS=18} [2021-06-10 21:12:09,975 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 10 predicate places. [2021-06-10 21:12:09,975 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 18 transitions, 94 flow [2021-06-10 21:12:09,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 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) [2021-06-10 21:12:09,975 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-10 21:12:09,975 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-10 21:12:09,975 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-10 21:12:09,976 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-10 21:12:09,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-10 21:12:09,976 INFO L82 PathProgramCache]: Analyzing trace with hash -391952436, now seen corresponding path program 1 times [2021-06-10 21:12:09,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-10 21:12:09,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210627134] [2021-06-10 21:12:09,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-10 21:12:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-10 21:12:10,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:10,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:12:10,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:10,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:12:10,033 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-10 21:12:10,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-10 21:12:10,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-10 21:12:10,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-10 21:12:10,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-10 21:12:10,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210627134] [2021-06-10 21:12:10,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-10 21:12:10,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-10 21:12:10,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211032285] [2021-06-10 21:12:10,041 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-10 21:12:10,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-10 21:12:10,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-10 21:12:10,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-10 21:12:10,042 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 118 [2021-06-10 21:12:10,043 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 18 transitions, 94 flow. Second operand has 6 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 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) [2021-06-10 21:12:10,043 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-10 21:12:10,043 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 118 [2021-06-10 21:12:10,043 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-10 21:12:10,076 INFO L129 PetriNetUnfolder]: 1/19 cut-off events. [2021-06-10 21:12:10,076 INFO L130 PetriNetUnfolder]: For 34/47 co-relation queries the response was YES. [2021-06-10 21:12:10,076 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 19 events. 1/19 cut-off events. For 34/47 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 5/24 useless extension candidates. Maximal degree in co-relation 54. Up to 7 conditions per place. [2021-06-10 21:12:10,076 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2021-06-10 21:12:10,076 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 18 transitions, 103 flow [2021-06-10 21:12:10,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-10 21:12:10,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-10 21:12:10,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 543 transitions. [2021-06-10 21:12:10,078 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7669491525423728 [2021-06-10 21:12:10,078 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 543 transitions. [2021-06-10 21:12:10,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 543 transitions. [2021-06-10 21:12:10,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-10 21:12:10,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 543 transitions. [2021-06-10 21:12:10,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.5) internal successors, (543), 6 states have internal predecessors, (543), 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) [2021-06-10 21:12:10,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 118.0) internal successors, (826), 7 states have internal predecessors, (826), 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) [2021-06-10 21:12:10,081 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 118.0) internal successors, (826), 7 states have internal predecessors, (826), 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) [2021-06-10 21:12:10,081 INFO L185 Difference]: Start difference. First operand has 36 places, 18 transitions, 94 flow. Second operand 6 states and 543 transitions. [2021-06-10 21:12:10,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 18 transitions, 103 flow [2021-06-10 21:12:10,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 18 transitions, 80 flow, removed 2 selfloop flow, removed 6 redundant places. [2021-06-10 21:12:10,082 INFO L241 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2021-06-10 21:12:10,083 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2021-06-10 21:12:10,083 INFO L343 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2021-06-10 21:12:10,083 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2021-06-10 21:12:10,084 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 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) [2021-06-10 21:12:10,084 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-10 21:12:10,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 09:12:10 BasicIcfg [2021-06-10 21:12:10,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 21:12:10,090 INFO L168 Benchmark]: Toolchain (without parser) took 5285.03 ms. Allocated memory was 346.0 MB in the beginning and 434.1 MB in the end (delta: 88.1 MB). Free memory was 308.3 MB in the beginning and 389.3 MB in the end (delta: -80.9 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.0 GB. [2021-06-10 21:12:10,090 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 346.0 MB. Free memory is still 326.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 21:12:10,091 INFO L168 Benchmark]: CACSL2BoogieTranslator took 514.07 ms. Allocated memory is still 346.0 MB. Free memory was 308.1 MB in the beginning and 307.3 MB in the end (delta: 836.3 kB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. [2021-06-10 21:12:10,091 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.79 ms. Allocated memory is still 346.0 MB. Free memory was 307.3 MB in the beginning and 305.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 21:12:10,091 INFO L168 Benchmark]: Boogie Preprocessor took 37.35 ms. Allocated memory is still 346.0 MB. Free memory was 305.2 MB in the beginning and 303.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 21:12:10,093 INFO L168 Benchmark]: RCFGBuilder took 511.90 ms. Allocated memory is still 346.0 MB. Free memory was 303.4 MB in the beginning and 280.9 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-10 21:12:10,093 INFO L168 Benchmark]: TraceAbstraction took 4149.87 ms. Allocated memory was 346.0 MB in the beginning and 434.1 MB in the end (delta: 88.1 MB). Free memory was 280.4 MB in the beginning and 389.3 MB in the end (delta: -108.9 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 21:12:10,097 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 346.0 MB. Free memory is still 326.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 514.07 ms. Allocated memory is still 346.0 MB. Free memory was 308.1 MB in the beginning and 307.3 MB in the end (delta: 836.3 kB). Peak memory consumption was 7.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 57.79 ms. Allocated memory is still 346.0 MB. Free memory was 307.3 MB in the beginning and 305.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 37.35 ms. Allocated memory is still 346.0 MB. Free memory was 305.2 MB in the beginning and 303.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 511.90 ms. Allocated memory is still 346.0 MB. Free memory was 303.4 MB in the beginning and 280.9 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4149.87 ms. Allocated memory was 346.0 MB in the beginning and 434.1 MB in the end (delta: 88.1 MB). Free memory was 280.4 MB in the beginning and 389.3 MB in the end (delta: -108.9 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: 2628.9ms, 67 PlacesBefore, 26 PlacesAfterwards, 58 TransitionsBefore, 16 TransitionsAfterwards, 812 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 45 TotalNumberOfCompositions, 1296 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 742, positive: 680, positive conditional: 0, positive unconditional: 680, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 526, positive: 498, positive conditional: 0, positive unconditional: 498, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 526, positive: 498, positive conditional: 0, positive unconditional: 498, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 526, positive: 493, positive conditional: 0, positive unconditional: 493, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 33, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 126, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 100, negative conditional: 0, negative unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 742, positive: 182, positive conditional: 0, positive unconditional: 182, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 526, unknown conditional: 0, unknown unconditional: 526] , Statistics on independence cache: Total cache size (in pairs): 888, Positive cache size: 860, Positive conditional cache size: 0, Positive unconditional cache size: 860, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4061.1ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 484.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2697.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 47 SDtfs, 23 SDslu, 22 SDs, 0 SdLazy, 94 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 91.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 123.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred in iteration=3, InterpolantAutomatonStates: 43, 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: 29.2ms SsaConstructionTime, 157.4ms SatisfiabilityAnalysisTime, 491.6ms InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 447 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...