/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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 11:06:28,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 11:06:28,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 11:06:28,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 11:06:28,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 11:06:28,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 11:06:28,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 11:06:28,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 11:06:28,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 11:06:28,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 11:06:28,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 11:06:28,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 11:06:28,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 11:06:28,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 11:06:28,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 11:06:28,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 11:06:28,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 11:06:28,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 11:06:28,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 11:06:28,426 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 11:06:28,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 11:06:28,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 11:06:28,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 11:06:28,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 11:06:28,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-24 11:06:28,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-24 11:06:28,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-24 11:06:28,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-24 11:06:28,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-24 11:06:28,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-24 11:06:28,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 11:06:28,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 11:06:28,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 11:06:28,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 11:06:28,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 11:06:28,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 11:06:28,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 11:06:28,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 11:06:28,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 11:06:28,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 11:06:28,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 11:06:28,451 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-VariableLbe.epf [2021-03-24 11:06:28,485 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 11:06:28,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 11:06:28,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 11:06:28,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 11:06:28,489 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 11:06:28,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 11:06:28,489 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 11:06:28,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 11:06:28,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 11:06:28,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 11:06:28,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 11:06:28,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 11:06:28,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 11:06:28,491 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 11:06:28,491 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 11:06:28,491 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 11:06:28,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 11:06:28,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 11:06:28,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 11:06:28,492 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 11:06:28,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 11:06:28,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 11:06:28,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 11:06:28,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 11:06:28,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 11:06:28,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 11:06:28,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 11:06:28,493 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 11:06:28,493 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 11:06:28,493 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 11:06:28,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 11:06:28,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 11:06:28,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 11:06:28,771 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 11:06:28,772 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 11:06:28,772 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2021-03-24 11:06:28,826 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc8bd0207/7585c4b2db4e4e99a7b23a794cce82bf/FLAGb27ab112a [2021-03-24 11:06:29,338 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 11:06:29,339 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2021-03-24 11:06:29,354 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc8bd0207/7585c4b2db4e4e99a7b23a794cce82bf/FLAGb27ab112a [2021-03-24 11:06:29,795 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc8bd0207/7585c4b2db4e4e99a7b23a794cce82bf [2021-03-24 11:06:29,797 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 11:06:29,799 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 11:06:29,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 11:06:29,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 11:06:29,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 11:06:29,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 11:06:29" (1/1) ... [2021-03-24 11:06:29,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25aef6b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:06:29, skipping insertion in model container [2021-03-24 11:06:29,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 11:06:29" (1/1) ... [2021-03-24 11:06:29,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 11:06:29,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 11:06:29,993 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/safe027_tso.oepc.i[950,963] [2021-03-24 11:06:30,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 11:06:30,189 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 11:06:30,199 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/safe027_tso.oepc.i[950,963] [2021-03-24 11:06:30,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 11:06:30,309 INFO L208 MainTranslator]: Completed translation [2021-03-24 11:06:30,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:06:30 WrapperNode [2021-03-24 11:06:30,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 11:06:30,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 11:06:30,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 11:06:30,313 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 11:06:30,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:06:30" (1/1) ... [2021-03-24 11:06:30,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:06:30" (1/1) ... [2021-03-24 11:06:30,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 11:06:30,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 11:06:30,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 11:06:30,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 11:06:30,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:06:30" (1/1) ... [2021-03-24 11:06:30,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:06:30" (1/1) ... [2021-03-24 11:06:30,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:06:30" (1/1) ... [2021-03-24 11:06:30,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:06:30" (1/1) ... [2021-03-24 11:06:30,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:06:30" (1/1) ... [2021-03-24 11:06:30,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:06:30" (1/1) ... [2021-03-24 11:06:30,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:06:30" (1/1) ... [2021-03-24 11:06:30,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 11:06:30,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 11:06:30,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 11:06:30,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 11:06:30,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:06:30" (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 [2021-03-24 11:06:30,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 11:06:30,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 11:06:30,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 11:06:30,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 11:06:30,459 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-24 11:06:30,460 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-24 11:06:30,460 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-24 11:06:30,461 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-24 11:06:30,461 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-24 11:06:30,461 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-24 11:06:30,461 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-24 11:06:30,461 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-24 11:06:30,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 11:06:30,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 11:06:30,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 11:06:30,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 11:06:30,462 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 11:06:30,767 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 11:06:30,767 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-24 11:06:30,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 11:06:30 BoogieIcfgContainer [2021-03-24 11:06:30,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 11:06:30,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 11:06:30,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 11:06:30,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 11:06:30,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 11:06:29" (1/3) ... [2021-03-24 11:06:30,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1caea3d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 11:06:30, skipping insertion in model container [2021-03-24 11:06:30,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:06:30" (2/3) ... [2021-03-24 11:06:30,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1caea3d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 11:06:30, skipping insertion in model container [2021-03-24 11:06:30,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 11:06:30" (3/3) ... [2021-03-24 11:06:30,775 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2021-03-24 11:06:30,785 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 11:06:30,788 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-24 11:06:30,788 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 11:06:30,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,823 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,824 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,824 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,825 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,825 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,825 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,825 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,825 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,825 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,826 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,826 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,826 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,826 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,827 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,827 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,827 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,827 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,828 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,828 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,828 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,828 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,828 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,828 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,829 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,829 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,829 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,829 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,829 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,829 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,830 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,830 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,830 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,830 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,832 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,832 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,832 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,832 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,836 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,836 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,837 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,837 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,839 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,839 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,839 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,839 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,841 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,841 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,841 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,841 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:06:30,843 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-24 11:06:30,858 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-24 11:06:30,891 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 11:06:30,892 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 11:06:30,892 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 11:06:30,892 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 11:06:30,892 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 11:06:30,892 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 11:06:30,892 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 11:06:30,892 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 11:06:30,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 87 transitions, 194 flow [2021-03-24 11:06:30,934 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2021-03-24 11:06:30,935 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:06:30,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-03-24 11:06:30,938 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 87 transitions, 194 flow [2021-03-24 11:06:30,942 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 69 transitions, 150 flow [2021-03-24 11:06:30,943 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 11:06:30,950 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 69 transitions, 150 flow [2021-03-24 11:06:30,953 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 69 transitions, 150 flow [2021-03-24 11:06:30,954 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 69 transitions, 150 flow [2021-03-24 11:06:30,969 INFO L129 PetriNetUnfolder]: 1/69 cut-off events. [2021-03-24 11:06:30,970 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:06:30,970 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 69 events. 1/69 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. 0/68 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-03-24 11:06:30,972 INFO L142 LiptonReduction]: Number of co-enabled transitions 1250 [2021-03-24 11:06:32,742 INFO L154 LiptonReduction]: Checked pairs total: 1387 [2021-03-24 11:06:32,742 INFO L156 LiptonReduction]: Total number of compositions: 44 [2021-03-24 11:06:32,744 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1802 [2021-03-24 11:06:32,756 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-24 11:06:32,756 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:06:32,756 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:06:32,757 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:06:32,757 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:06:32,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:06:32,761 INFO L82 PathProgramCache]: Analyzing trace with hash 654156635, now seen corresponding path program 1 times [2021-03-24 11:06:32,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:06:32,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160392332] [2021-03-24 11:06:32,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:06:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:06:33,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:33,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:06:33,024 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-24 11:06:33,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:06:33,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:06:33,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160392332] [2021-03-24 11:06:33,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:06:33,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 11:06:33,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634575357] [2021-03-24 11:06:33,047 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 11:06:33,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:06:33,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 11:06:33,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 11:06:33,059 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 131 [2021-03-24 11:06:33,061 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:06:33,061 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:06:33,061 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 131 [2021-03-24 11:06:33,062 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:06:33,090 INFO L129 PetriNetUnfolder]: 14/57 cut-off events. [2021-03-24 11:06:33,090 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:06:33,091 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 57 events. 14/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 126 event pairs, 10 based on Foata normal form. 1/50 useless extension candidates. Maximal degree in co-relation 87. Up to 31 conditions per place. [2021-03-24 11:06:33,092 INFO L132 encePairwiseOnDemand]: 127/131 looper letters, 6 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2021-03-24 11:06:33,092 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 27 transitions, 84 flow [2021-03-24 11:06:33,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 11:06:33,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 11:06:33,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 340 transitions. [2021-03-24 11:06:33,110 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8651399491094147 [2021-03-24 11:06:33,111 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 340 transitions. [2021-03-24 11:06:33,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 340 transitions. [2021-03-24 11:06:33,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:06:33,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 340 transitions. [2021-03-24 11:06:33,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) [2021-03-24 11:06:33,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2021-03-24 11:06:33,126 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2021-03-24 11:06:33,128 INFO L185 Difference]: Start difference. First operand has 38 places, 25 transitions, 62 flow. Second operand 3 states and 340 transitions. [2021-03-24 11:06:33,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 27 transitions, 84 flow [2021-03-24 11:06:33,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 27 transitions, 80 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-24 11:06:33,131 INFO L241 Difference]: Finished difference. Result has 37 places, 27 transitions, 77 flow [2021-03-24 11:06:33,133 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=37, PETRI_TRANSITIONS=27} [2021-03-24 11:06:33,134 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2021-03-24 11:06:33,134 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 27 transitions, 77 flow [2021-03-24 11:06:33,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:06:33,134 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:06:33,134 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:06:33,135 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 11:06:33,135 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:06:33,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:06:33,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1860134279, now seen corresponding path program 1 times [2021-03-24 11:06:33,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:06:33,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181222612] [2021-03-24 11:06:33,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:06:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:06:33,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:33,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:06:33,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:33,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:06:33,237 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-24 11:06:33,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:06:33,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:06:33,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181222612] [2021-03-24 11:06:33,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:06:33,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:06:33,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048713018] [2021-03-24 11:06:33,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 11:06:33,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:06:33,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 11:06:33,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 11:06:33,257 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2021-03-24 11:06:33,258 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 27 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 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) [2021-03-24 11:06:33,258 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:06:33,258 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2021-03-24 11:06:33,258 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:06:33,340 INFO L129 PetriNetUnfolder]: 50/127 cut-off events. [2021-03-24 11:06:33,340 INFO L130 PetriNetUnfolder]: For 36/131 co-relation queries the response was YES. [2021-03-24 11:06:33,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 127 events. 50/127 cut-off events. For 36/131 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 451 event pairs, 4 based on Foata normal form. 5/120 useless extension candidates. Maximal degree in co-relation 257. Up to 53 conditions per place. [2021-03-24 11:06:33,342 INFO L132 encePairwiseOnDemand]: 123/131 looper letters, 11 selfloop transitions, 14 changer transitions 0/41 dead transitions. [2021-03-24 11:06:33,343 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 41 transitions, 171 flow [2021-03-24 11:06:33,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 11:06:33,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 11:06:33,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 545 transitions. [2021-03-24 11:06:33,346 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8320610687022901 [2021-03-24 11:06:33,346 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 545 transitions. [2021-03-24 11:06:33,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 545 transitions. [2021-03-24 11:06:33,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:06:33,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 545 transitions. [2021-03-24 11:06:33,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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) [2021-03-24 11:06:33,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 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) [2021-03-24 11:06:33,351 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 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) [2021-03-24 11:06:33,351 INFO L185 Difference]: Start difference. First operand has 37 places, 27 transitions, 77 flow. Second operand 5 states and 545 transitions. [2021-03-24 11:06:33,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 41 transitions, 171 flow [2021-03-24 11:06:33,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 41 transitions, 166 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 11:06:33,354 INFO L241 Difference]: Finished difference. Result has 43 places, 37 transitions, 173 flow [2021-03-24 11:06:33,354 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=173, PETRI_PLACES=43, PETRI_TRANSITIONS=37} [2021-03-24 11:06:33,355 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 5 predicate places. [2021-03-24 11:06:33,355 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 37 transitions, 173 flow [2021-03-24 11:06:33,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.25) internal successors, (421), 4 states have internal predecessors, (421), 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) [2021-03-24 11:06:33,355 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:06:33,355 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:06:33,356 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 11:06:33,356 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:06:33,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:06:33,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1757970989, now seen corresponding path program 1 times [2021-03-24 11:06:33,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:06:33,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910747637] [2021-03-24 11:06:33,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:06:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:06:33,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:33,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:06:33,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:33,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:06:33,436 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-24 11:06:33,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:06:33,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:06:33,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910747637] [2021-03-24 11:06:33,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:06:33,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:06:33,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47894211] [2021-03-24 11:06:33,449 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 11:06:33,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:06:33,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 11:06:33,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-24 11:06:33,450 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 131 [2021-03-24 11:06:33,451 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 37 transitions, 173 flow. Second operand has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 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) [2021-03-24 11:06:33,451 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:06:33,451 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 131 [2021-03-24 11:06:33,451 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:06:33,485 INFO L129 PetriNetUnfolder]: 24/91 cut-off events. [2021-03-24 11:06:33,485 INFO L130 PetriNetUnfolder]: For 127/327 co-relation queries the response was YES. [2021-03-24 11:06:33,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 91 events. 24/91 cut-off events. For 127/327 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 315 event pairs, 5 based on Foata normal form. 4/86 useless extension candidates. Maximal degree in co-relation 273. Up to 47 conditions per place. [2021-03-24 11:06:33,494 INFO L132 encePairwiseOnDemand]: 128/131 looper letters, 14 selfloop transitions, 5 changer transitions 0/38 dead transitions. [2021-03-24 11:06:33,494 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 38 transitions, 217 flow [2021-03-24 11:06:33,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 11:06:33,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 11:06:33,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 340 transitions. [2021-03-24 11:06:33,495 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8651399491094147 [2021-03-24 11:06:33,496 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 340 transitions. [2021-03-24 11:06:33,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 340 transitions. [2021-03-24 11:06:33,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:06:33,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 340 transitions. [2021-03-24 11:06:33,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 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) [2021-03-24 11:06:33,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2021-03-24 11:06:33,498 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2021-03-24 11:06:33,498 INFO L185 Difference]: Start difference. First operand has 43 places, 37 transitions, 173 flow. Second operand 3 states and 340 transitions. [2021-03-24 11:06:33,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 38 transitions, 217 flow [2021-03-24 11:06:33,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 38 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 11:06:33,501 INFO L241 Difference]: Finished difference. Result has 45 places, 37 transitions, 183 flow [2021-03-24 11:06:33,501 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=183, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2021-03-24 11:06:33,501 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 7 predicate places. [2021-03-24 11:06:33,501 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 183 flow [2021-03-24 11:06:33,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 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) [2021-03-24 11:06:33,501 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:06:33,502 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:06:33,502 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 11:06:33,502 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:06:33,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:06:33,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1829589721, now seen corresponding path program 1 times [2021-03-24 11:06:33,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:06:33,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821180588] [2021-03-24 11:06:33,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:06:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:06:33,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:33,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:06:33,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:33,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:06:33,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:06:33,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821180588] [2021-03-24 11:06:33,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:06:33,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 11:06:33,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593872101] [2021-03-24 11:06:33,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 11:06:33,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:06:33,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 11:06:33,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 11:06:33,573 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 131 [2021-03-24 11:06:33,574 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 183 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 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) [2021-03-24 11:06:33,574 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:06:33,574 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 131 [2021-03-24 11:06:33,574 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:06:33,589 INFO L129 PetriNetUnfolder]: 19/79 cut-off events. [2021-03-24 11:06:33,589 INFO L130 PetriNetUnfolder]: For 171/288 co-relation queries the response was YES. [2021-03-24 11:06:33,590 INFO L84 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 79 events. 19/79 cut-off events. For 171/288 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 262 event pairs, 4 based on Foata normal form. 2/74 useless extension candidates. Maximal degree in co-relation 209. Up to 34 conditions per place. [2021-03-24 11:06:33,591 INFO L132 encePairwiseOnDemand]: 128/131 looper letters, 1 selfloop transitions, 6 changer transitions 0/37 dead transitions. [2021-03-24 11:06:33,591 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 37 transitions, 197 flow [2021-03-24 11:06:33,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 11:06:33,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 11:06:33,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2021-03-24 11:06:33,593 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9185750636132316 [2021-03-24 11:06:33,593 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 361 transitions. [2021-03-24 11:06:33,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 361 transitions. [2021-03-24 11:06:33,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:06:33,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 361 transitions. [2021-03-24 11:06:33,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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) [2021-03-24 11:06:33,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2021-03-24 11:06:33,596 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 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) [2021-03-24 11:06:33,596 INFO L185 Difference]: Start difference. First operand has 45 places, 37 transitions, 183 flow. Second operand 3 states and 361 transitions. [2021-03-24 11:06:33,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 37 transitions, 197 flow [2021-03-24 11:06:33,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 37 transitions, 187 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 11:06:33,601 INFO L241 Difference]: Finished difference. Result has 46 places, 37 transitions, 193 flow [2021-03-24 11:06:33,601 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=46, PETRI_TRANSITIONS=37} [2021-03-24 11:06:33,601 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 8 predicate places. [2021-03-24 11:06:33,602 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 193 flow [2021-03-24 11:06:33,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 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) [2021-03-24 11:06:33,602 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:06:33,602 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:06:33,602 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 11:06:33,602 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:06:33,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:06:33,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1579267913, now seen corresponding path program 1 times [2021-03-24 11:06:33,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:06:33,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600042909] [2021-03-24 11:06:33,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:06:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:06:33,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:33,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:06:33,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:33,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:06:33,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:33,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:06:33,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:06:33,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600042909] [2021-03-24 11:06:33,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:06:33,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:06:33,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876740227] [2021-03-24 11:06:33,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 11:06:33,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:06:33,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 11:06:33,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 11:06:33,668 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 131 [2021-03-24 11:06:33,668 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 193 flow. Second operand has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 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) [2021-03-24 11:06:33,668 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:06:33,668 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 131 [2021-03-24 11:06:33,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:06:33,725 INFO L129 PetriNetUnfolder]: 40/140 cut-off events. [2021-03-24 11:06:33,725 INFO L130 PetriNetUnfolder]: For 585/1135 co-relation queries the response was YES. [2021-03-24 11:06:33,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 444 conditions, 140 events. 40/140 cut-off events. For 585/1135 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 630 event pairs, 5 based on Foata normal form. 10/143 useless extension candidates. Maximal degree in co-relation 420. Up to 59 conditions per place. [2021-03-24 11:06:33,727 INFO L132 encePairwiseOnDemand]: 126/131 looper letters, 10 selfloop transitions, 8 changer transitions 5/48 dead transitions. [2021-03-24 11:06:33,727 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 48 transitions, 322 flow [2021-03-24 11:06:33,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-24 11:06:33,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-24 11:06:33,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 459 transitions. [2021-03-24 11:06:33,730 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8759541984732825 [2021-03-24 11:06:33,730 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 459 transitions. [2021-03-24 11:06:33,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 459 transitions. [2021-03-24 11:06:33,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:06:33,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 459 transitions. [2021-03-24 11:06:33,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 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) [2021-03-24 11:06:33,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 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) [2021-03-24 11:06:33,733 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 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) [2021-03-24 11:06:33,733 INFO L185 Difference]: Start difference. First operand has 46 places, 37 transitions, 193 flow. Second operand 4 states and 459 transitions. [2021-03-24 11:06:33,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 48 transitions, 322 flow [2021-03-24 11:06:33,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 48 transitions, 300 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 11:06:33,736 INFO L241 Difference]: Finished difference. Result has 49 places, 37 transitions, 211 flow [2021-03-24 11:06:33,736 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=211, PETRI_PLACES=49, PETRI_TRANSITIONS=37} [2021-03-24 11:06:33,737 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 11 predicate places. [2021-03-24 11:06:33,737 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 37 transitions, 211 flow [2021-03-24 11:06:33,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 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) [2021-03-24 11:06:33,737 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:06:33,737 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:06:33,737 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 11:06:33,738 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:06:33,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:06:33,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1367802433, now seen corresponding path program 1 times [2021-03-24 11:06:33,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:06:33,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890037959] [2021-03-24 11:06:33,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:06:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:06:33,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:33,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:06:33,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:33,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:06:33,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:33,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:06:33,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:06:33,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890037959] [2021-03-24 11:06:33,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:06:33,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:06:33,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557734566] [2021-03-24 11:06:33,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 11:06:33,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:06:33,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 11:06:33,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 11:06:33,778 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 131 [2021-03-24 11:06:33,779 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 37 transitions, 211 flow. Second operand has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 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) [2021-03-24 11:06:33,779 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:06:33,779 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 131 [2021-03-24 11:06:33,779 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:06:33,809 INFO L129 PetriNetUnfolder]: 22/88 cut-off events. [2021-03-24 11:06:33,809 INFO L130 PetriNetUnfolder]: For 442/584 co-relation queries the response was YES. [2021-03-24 11:06:33,809 INFO L84 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 88 events. 22/88 cut-off events. For 442/584 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 310 event pairs, 6 based on Foata normal form. 8/94 useless extension candidates. Maximal degree in co-relation 273. Up to 36 conditions per place. [2021-03-24 11:06:33,810 INFO L132 encePairwiseOnDemand]: 126/131 looper letters, 4 selfloop transitions, 6 changer transitions 8/39 dead transitions. [2021-03-24 11:06:33,810 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 39 transitions, 251 flow [2021-03-24 11:06:33,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-24 11:06:33,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-24 11:06:33,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 459 transitions. [2021-03-24 11:06:33,812 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8759541984732825 [2021-03-24 11:06:33,812 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 459 transitions. [2021-03-24 11:06:33,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 459 transitions. [2021-03-24 11:06:33,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:06:33,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 459 transitions. [2021-03-24 11:06:33,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 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) [2021-03-24 11:06:33,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 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) [2021-03-24 11:06:33,814 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 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) [2021-03-24 11:06:33,814 INFO L185 Difference]: Start difference. First operand has 49 places, 37 transitions, 211 flow. Second operand 4 states and 459 transitions. [2021-03-24 11:06:33,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 39 transitions, 251 flow [2021-03-24 11:06:33,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 39 transitions, 229 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-24 11:06:33,816 INFO L241 Difference]: Finished difference. Result has 50 places, 29 transitions, 160 flow [2021-03-24 11:06:33,817 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=50, PETRI_TRANSITIONS=29} [2021-03-24 11:06:33,817 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 12 predicate places. [2021-03-24 11:06:33,817 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 29 transitions, 160 flow [2021-03-24 11:06:33,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 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) [2021-03-24 11:06:33,817 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:06:33,817 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:06:33,817 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 11:06:33,818 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:06:33,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:06:33,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1571852722, now seen corresponding path program 1 times [2021-03-24 11:06:33,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:06:33,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266837595] [2021-03-24 11:06:33,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:06:33,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:06:33,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:33,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:06:33,864 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-24 11:06:33,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:06:33,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:33,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:06:33,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:33,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:06:33,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:06:33,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266837595] [2021-03-24 11:06:33,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:06:33,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 11:06:33,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837487846] [2021-03-24 11:06:33,877 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 11:06:33,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:06:33,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 11:06:33,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 11:06:33,878 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2021-03-24 11:06:33,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 29 transitions, 160 flow. Second operand has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 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) [2021-03-24 11:06:33,879 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:06:33,879 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2021-03-24 11:06:33,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:06:33,967 INFO L129 PetriNetUnfolder]: 178/333 cut-off events. [2021-03-24 11:06:33,967 INFO L130 PetriNetUnfolder]: For 721/766 co-relation queries the response was YES. [2021-03-24 11:06:33,969 INFO L84 FinitePrefix]: Finished finitePrefix Result has 908 conditions, 333 events. 178/333 cut-off events. For 721/766 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 1649 event pairs, 97 based on Foata normal form. 27/321 useless extension candidates. Maximal degree in co-relation 880. Up to 209 conditions per place. [2021-03-24 11:06:33,972 INFO L132 encePairwiseOnDemand]: 124/131 looper letters, 10 selfloop transitions, 10 changer transitions 0/42 dead transitions. [2021-03-24 11:06:33,973 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 42 transitions, 226 flow [2021-03-24 11:06:33,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 11:06:33,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 11:06:33,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 542 transitions. [2021-03-24 11:06:33,975 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8274809160305343 [2021-03-24 11:06:33,975 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 542 transitions. [2021-03-24 11:06:33,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 542 transitions. [2021-03-24 11:06:33,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:06:33,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 542 transitions. [2021-03-24 11:06:33,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 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) [2021-03-24 11:06:33,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 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) [2021-03-24 11:06:33,979 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 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) [2021-03-24 11:06:33,979 INFO L185 Difference]: Start difference. First operand has 50 places, 29 transitions, 160 flow. Second operand 5 states and 542 transitions. [2021-03-24 11:06:33,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 42 transitions, 226 flow [2021-03-24 11:06:33,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 42 transitions, 199 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-24 11:06:33,982 INFO L241 Difference]: Finished difference. Result has 51 places, 38 transitions, 208 flow [2021-03-24 11:06:33,982 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=208, PETRI_PLACES=51, PETRI_TRANSITIONS=38} [2021-03-24 11:06:33,983 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 13 predicate places. [2021-03-24 11:06:33,983 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 38 transitions, 208 flow [2021-03-24 11:06:33,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 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) [2021-03-24 11:06:33,983 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:06:33,983 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:06:33,983 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 11:06:33,983 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:06:33,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:06:33,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1231425513, now seen corresponding path program 1 times [2021-03-24 11:06:33,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:06:33,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839194099] [2021-03-24 11:06:33,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:06:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:06:34,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:34,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:06:34,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:34,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:06:34,040 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-24 11:06:34,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:06:34,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:34,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:06:34,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:34,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:06:34,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:06:34,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839194099] [2021-03-24 11:06:34,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:06:34,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-24 11:06:34,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48293975] [2021-03-24 11:06:34,055 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-24 11:06:34,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:06:34,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-24 11:06:34,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-24 11:06:34,056 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2021-03-24 11:06:34,057 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 208 flow. Second operand has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 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) [2021-03-24 11:06:34,057 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:06:34,057 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2021-03-24 11:06:34,057 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:06:34,152 INFO L129 PetriNetUnfolder]: 142/296 cut-off events. [2021-03-24 11:06:34,152 INFO L130 PetriNetUnfolder]: For 559/914 co-relation queries the response was YES. [2021-03-24 11:06:34,153 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1172 conditions, 296 events. 142/296 cut-off events. For 559/914 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 1406 event pairs, 32 based on Foata normal form. 75/347 useless extension candidates. Maximal degree in co-relation 1146. Up to 216 conditions per place. [2021-03-24 11:06:34,155 INFO L132 encePairwiseOnDemand]: 124/131 looper letters, 10 selfloop transitions, 19 changer transitions 0/51 dead transitions. [2021-03-24 11:06:34,155 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 51 transitions, 342 flow [2021-03-24 11:06:34,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-24 11:06:34,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-24 11:06:34,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 759 transitions. [2021-03-24 11:06:34,157 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8276990185387132 [2021-03-24 11:06:34,157 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 759 transitions. [2021-03-24 11:06:34,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 759 transitions. [2021-03-24 11:06:34,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:06:34,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 759 transitions. [2021-03-24 11:06:34,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 108.42857142857143) internal successors, (759), 7 states have internal predecessors, (759), 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) [2021-03-24 11:06:34,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 131.0) internal successors, (1048), 8 states have internal predecessors, (1048), 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) [2021-03-24 11:06:34,162 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 131.0) internal successors, (1048), 8 states have internal predecessors, (1048), 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) [2021-03-24 11:06:34,162 INFO L185 Difference]: Start difference. First operand has 51 places, 38 transitions, 208 flow. Second operand 7 states and 759 transitions. [2021-03-24 11:06:34,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 51 transitions, 342 flow [2021-03-24 11:06:34,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 51 transitions, 337 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 11:06:34,166 INFO L241 Difference]: Finished difference. Result has 59 places, 47 transitions, 337 flow [2021-03-24 11:06:34,166 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=337, PETRI_PLACES=59, PETRI_TRANSITIONS=47} [2021-03-24 11:06:34,166 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 21 predicate places. [2021-03-24 11:06:34,166 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 47 transitions, 337 flow [2021-03-24 11:06:34,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 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) [2021-03-24 11:06:34,167 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:06:34,167 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:06:34,167 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 11:06:34,168 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:06:34,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:06:34,168 INFO L82 PathProgramCache]: Analyzing trace with hash 480353036, now seen corresponding path program 1 times [2021-03-24 11:06:34,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:06:34,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516827199] [2021-03-24 11:06:34,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:06:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:06:34,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:34,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:06:34,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:34,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:06:34,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:34,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:06:34,221 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-24 11:06:34,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:06:34,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:34,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:06:34,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:34,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:06:34,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:06:34,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516827199] [2021-03-24 11:06:34,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:06:34,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-24 11:06:34,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841564853] [2021-03-24 11:06:34,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-24 11:06:34,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:06:34,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-24 11:06:34,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-24 11:06:34,244 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2021-03-24 11:06:34,245 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 47 transitions, 337 flow. Second operand has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 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) [2021-03-24 11:06:34,245 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:06:34,245 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2021-03-24 11:06:34,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:06:34,361 INFO L129 PetriNetUnfolder]: 107/244 cut-off events. [2021-03-24 11:06:34,362 INFO L130 PetriNetUnfolder]: For 1036/1952 co-relation queries the response was YES. [2021-03-24 11:06:34,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1328 conditions, 244 events. 107/244 cut-off events. For 1036/1952 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1145 event pairs, 5 based on Foata normal form. 115/341 useless extension candidates. Maximal degree in co-relation 1298. Up to 197 conditions per place. [2021-03-24 11:06:34,364 INFO L132 encePairwiseOnDemand]: 124/131 looper letters, 6 selfloop transitions, 28 changer transitions 4/60 dead transitions. [2021-03-24 11:06:34,364 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 60 transitions, 539 flow [2021-03-24 11:06:34,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 11:06:34,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 11:06:34,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 976 transitions. [2021-03-24 11:06:34,367 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8278201865988125 [2021-03-24 11:06:34,367 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 976 transitions. [2021-03-24 11:06:34,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 976 transitions. [2021-03-24 11:06:34,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:06:34,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 976 transitions. [2021-03-24 11:06:34,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 108.44444444444444) internal successors, (976), 9 states have internal predecessors, (976), 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) [2021-03-24 11:06:34,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2021-03-24 11:06:34,372 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 131.0) internal successors, (1310), 10 states have internal predecessors, (1310), 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) [2021-03-24 11:06:34,372 INFO L185 Difference]: Start difference. First operand has 59 places, 47 transitions, 337 flow. Second operand 9 states and 976 transitions. [2021-03-24 11:06:34,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 60 transitions, 539 flow [2021-03-24 11:06:34,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 60 transitions, 489 flow, removed 17 selfloop flow, removed 3 redundant places. [2021-03-24 11:06:34,376 INFO L241 Difference]: Finished difference. Result has 67 places, 56 transitions, 465 flow [2021-03-24 11:06:34,377 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=465, PETRI_PLACES=67, PETRI_TRANSITIONS=56} [2021-03-24 11:06:34,377 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 29 predicate places. [2021-03-24 11:06:34,377 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 56 transitions, 465 flow [2021-03-24 11:06:34,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 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) [2021-03-24 11:06:34,377 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:06:34,377 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:06:34,377 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 11:06:34,378 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:06:34,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:06:34,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1359218515, now seen corresponding path program 1 times [2021-03-24 11:06:34,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:06:34,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849302250] [2021-03-24 11:06:34,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:06:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:06:34,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:34,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:06:34,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:34,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:06:34,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:34,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:06:34,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:34,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:06:34,445 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-24 11:06:34,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:06:34,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:34,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:06:34,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:34,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:06:34,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:06:34,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849302250] [2021-03-24 11:06:34,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:06:34,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-24 11:06:34,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419554374] [2021-03-24 11:06:34,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-24 11:06:34,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:06:34,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-24 11:06:34,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-24 11:06:34,469 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2021-03-24 11:06:34,470 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 56 transitions, 465 flow. Second operand has 7 states, 7 states have (on average 104.85714285714286) internal successors, (734), 7 states have internal predecessors, (734), 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) [2021-03-24 11:06:34,470 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:06:34,470 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2021-03-24 11:06:34,470 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:06:34,615 INFO L129 PetriNetUnfolder]: 91/214 cut-off events. [2021-03-24 11:06:34,615 INFO L130 PetriNetUnfolder]: For 1391/1829 co-relation queries the response was YES. [2021-03-24 11:06:34,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1266 conditions, 214 events. 91/214 cut-off events. For 1391/1829 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1009 event pairs, 1 based on Foata normal form. 97/294 useless extension candidates. Maximal degree in co-relation 1233. Up to 128 conditions per place. [2021-03-24 11:06:34,618 INFO L132 encePairwiseOnDemand]: 124/131 looper letters, 2 selfloop transitions, 33 changer transitions 4/61 dead transitions. [2021-03-24 11:06:34,618 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 61 transitions, 599 flow [2021-03-24 11:06:34,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 11:06:34,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 11:06:34,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1185 transitions. [2021-03-24 11:06:34,622 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8223455933379598 [2021-03-24 11:06:34,622 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1185 transitions. [2021-03-24 11:06:34,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1185 transitions. [2021-03-24 11:06:34,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:06:34,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1185 transitions. [2021-03-24 11:06:34,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 107.72727272727273) internal successors, (1185), 11 states have internal predecessors, (1185), 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) [2021-03-24 11:06:34,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 131.0) internal successors, (1572), 12 states have internal predecessors, (1572), 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) [2021-03-24 11:06:34,629 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 131.0) internal successors, (1572), 12 states have internal predecessors, (1572), 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) [2021-03-24 11:06:34,629 INFO L185 Difference]: Start difference. First operand has 67 places, 56 transitions, 465 flow. Second operand 11 states and 1185 transitions. [2021-03-24 11:06:34,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 61 transitions, 599 flow [2021-03-24 11:06:34,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 61 transitions, 485 flow, removed 39 selfloop flow, removed 6 redundant places. [2021-03-24 11:06:34,635 INFO L241 Difference]: Finished difference. Result has 74 places, 57 transitions, 445 flow [2021-03-24 11:06:34,636 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=445, PETRI_PLACES=74, PETRI_TRANSITIONS=57} [2021-03-24 11:06:34,636 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 36 predicate places. [2021-03-24 11:06:34,636 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 57 transitions, 445 flow [2021-03-24 11:06:34,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 104.85714285714286) internal successors, (734), 7 states have internal predecessors, (734), 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) [2021-03-24 11:06:34,636 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:06:34,636 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:06:34,636 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 11:06:34,637 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:06:34,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:06:34,637 INFO L82 PathProgramCache]: Analyzing trace with hash 933292102, now seen corresponding path program 1 times [2021-03-24 11:06:34,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:06:34,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735875148] [2021-03-24 11:06:34,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:06:34,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:06:34,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:34,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:06:34,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:34,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:06:34,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:34,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:06:34,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:06:34,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735875148] [2021-03-24 11:06:34,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:06:34,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:06:34,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68582189] [2021-03-24 11:06:34,679 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 11:06:34,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:06:34,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 11:06:34,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 11:06:34,680 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 131 [2021-03-24 11:06:34,680 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 57 transitions, 445 flow. Second operand has 4 states, 4 states have (on average 113.5) internal successors, (454), 4 states have internal predecessors, (454), 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) [2021-03-24 11:06:34,680 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:06:34,681 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 131 [2021-03-24 11:06:34,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:06:34,727 INFO L129 PetriNetUnfolder]: 141/323 cut-off events. [2021-03-24 11:06:34,727 INFO L130 PetriNetUnfolder]: For 1122/1232 co-relation queries the response was YES. [2021-03-24 11:06:34,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1426 conditions, 323 events. 141/323 cut-off events. For 1122/1232 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 1830 event pairs, 1 based on Foata normal form. 5/301 useless extension candidates. Maximal degree in co-relation 1390. Up to 100 conditions per place. [2021-03-24 11:06:34,729 INFO L132 encePairwiseOnDemand]: 128/131 looper letters, 5 selfloop transitions, 1 changer transitions 22/59 dead transitions. [2021-03-24 11:06:34,729 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 59 transitions, 480 flow [2021-03-24 11:06:34,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-24 11:06:34,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-24 11:06:34,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 457 transitions. [2021-03-24 11:06:34,731 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8721374045801527 [2021-03-24 11:06:34,731 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 457 transitions. [2021-03-24 11:06:34,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 457 transitions. [2021-03-24 11:06:34,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:06:34,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 457 transitions. [2021-03-24 11:06:34,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 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) [2021-03-24 11:06:34,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 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) [2021-03-24 11:06:34,733 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 131.0) internal successors, (655), 5 states have internal predecessors, (655), 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) [2021-03-24 11:06:34,733 INFO L185 Difference]: Start difference. First operand has 74 places, 57 transitions, 445 flow. Second operand 4 states and 457 transitions. [2021-03-24 11:06:34,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 59 transitions, 480 flow [2021-03-24 11:06:34,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 59 transitions, 369 flow, removed 25 selfloop flow, removed 10 redundant places. [2021-03-24 11:06:34,741 INFO L241 Difference]: Finished difference. Result has 68 places, 37 transitions, 203 flow [2021-03-24 11:06:34,741 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=203, PETRI_PLACES=68, PETRI_TRANSITIONS=37} [2021-03-24 11:06:34,741 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 30 predicate places. [2021-03-24 11:06:34,741 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 37 transitions, 203 flow [2021-03-24 11:06:34,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 113.5) internal successors, (454), 4 states have internal predecessors, (454), 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) [2021-03-24 11:06:34,741 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:06:34,741 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:06:34,742 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-24 11:06:34,742 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:06:34,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:06:34,742 INFO L82 PathProgramCache]: Analyzing trace with hash -396743128, now seen corresponding path program 2 times [2021-03-24 11:06:34,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:06:34,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845783438] [2021-03-24 11:06:34,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:06:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:06:34,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:34,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:06:34,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:06:34,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:06:34,786 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-24 11:06:34,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:06:34,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:06:34,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845783438] [2021-03-24 11:06:34,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:06:34,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:06:34,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429433805] [2021-03-24 11:06:34,801 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 11:06:34,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:06:34,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 11:06:34,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 11:06:34,802 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 131 [2021-03-24 11:06:34,803 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 37 transitions, 203 flow. Second operand has 4 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:06:34,803 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:06:34,803 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 131 [2021-03-24 11:06:34,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:06:34,836 INFO L129 PetriNetUnfolder]: 22/66 cut-off events. [2021-03-24 11:06:34,836 INFO L130 PetriNetUnfolder]: For 91/96 co-relation queries the response was YES. [2021-03-24 11:06:34,836 INFO L84 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 66 events. 22/66 cut-off events. For 91/96 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 151 event pairs, 0 based on Foata normal form. 2/63 useless extension candidates. Maximal degree in co-relation 204. Up to 20 conditions per place. [2021-03-24 11:06:34,836 INFO L132 encePairwiseOnDemand]: 126/131 looper letters, 0 selfloop transitions, 0 changer transitions 36/36 dead transitions. [2021-03-24 11:06:34,836 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 36 transitions, 215 flow [2021-03-24 11:06:34,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 11:06:34,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 11:06:34,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 529 transitions. [2021-03-24 11:06:34,838 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8076335877862595 [2021-03-24 11:06:34,838 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 529 transitions. [2021-03-24 11:06:34,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 529 transitions. [2021-03-24 11:06:34,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:06:34,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 529 transitions. [2021-03-24 11:06:34,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 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) [2021-03-24 11:06:34,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 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) [2021-03-24 11:06:34,841 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 131.0) internal successors, (786), 6 states have internal predecessors, (786), 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) [2021-03-24 11:06:34,841 INFO L185 Difference]: Start difference. First operand has 68 places, 37 transitions, 203 flow. Second operand 5 states and 529 transitions. [2021-03-24 11:06:34,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 36 transitions, 215 flow [2021-03-24 11:06:34,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 36 transitions, 192 flow, removed 8 selfloop flow, removed 9 redundant places. [2021-03-24 11:06:34,843 INFO L241 Difference]: Finished difference. Result has 53 places, 0 transitions, 0 flow [2021-03-24 11:06:34,843 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=53, PETRI_TRANSITIONS=0} [2021-03-24 11:06:34,843 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2021-03-24 11:06:34,843 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 0 transitions, 0 flow [2021-03-24 11:06:34,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:06:34,844 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-24 11:06:34,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 11:06:34 BasicIcfg [2021-03-24 11:06:34,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 11:06:34,848 INFO L168 Benchmark]: Toolchain (without parser) took 5049.30 ms. Allocated memory was 255.9 MB in the beginning and 440.4 MB in the end (delta: 184.5 MB). Free memory was 234.2 MB in the beginning and 200.9 MB in the end (delta: 33.3 MB). Peak memory consumption was 216.8 MB. Max. memory is 16.0 GB. [2021-03-24 11:06:34,848 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 11:06:34,850 INFO L168 Benchmark]: CACSL2BoogieTranslator took 511.91 ms. Allocated memory was 255.9 MB in the beginning and 367.0 MB in the end (delta: 111.1 MB). Free memory was 233.8 MB in the beginning and 328.5 MB in the end (delta: -94.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-24 11:06:34,851 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.27 ms. Allocated memory is still 367.0 MB. Free memory was 328.5 MB in the beginning and 326.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 11:06:34,851 INFO L168 Benchmark]: Boogie Preprocessor took 32.46 ms. Allocated memory is still 367.0 MB. Free memory was 326.5 MB in the beginning and 325.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 11:06:34,852 INFO L168 Benchmark]: RCFGBuilder took 366.86 ms. Allocated memory is still 367.0 MB. Free memory was 325.0 MB in the beginning and 301.3 MB in the end (delta: 23.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-24 11:06:34,852 INFO L168 Benchmark]: TraceAbstraction took 4077.40 ms. Allocated memory was 367.0 MB in the beginning and 440.4 MB in the end (delta: 73.4 MB). Free memory was 300.9 MB in the beginning and 200.9 MB in the end (delta: 99.9 MB). Peak memory consumption was 174.3 MB. Max. memory is 16.0 GB. [2021-03-24 11:06:34,862 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 511.91 ms. Allocated memory was 255.9 MB in the beginning and 367.0 MB in the end (delta: 111.1 MB). Free memory was 233.8 MB in the beginning and 328.5 MB in the end (delta: -94.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 56.27 ms. Allocated memory is still 367.0 MB. Free memory was 328.5 MB in the beginning and 326.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.46 ms. Allocated memory is still 367.0 MB. Free memory was 326.5 MB in the beginning and 325.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 366.86 ms. Allocated memory is still 367.0 MB. Free memory was 325.0 MB in the beginning and 301.3 MB in the end (delta: 23.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4077.40 ms. Allocated memory was 367.0 MB in the beginning and 440.4 MB in the end (delta: 73.4 MB). Free memory was 300.9 MB in the beginning and 200.9 MB in the end (delta: 99.9 MB). Peak memory consumption was 174.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1789.3ms, 81 PlacesBefore, 38 PlacesAfterwards, 69 TransitionsBefore, 25 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 4 FixpointIterations, 15 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 44 TotalNumberOfCompositions, 1387 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 945, positive: 911, positive conditional: 0, positive unconditional: 911, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 621, positive: 601, positive conditional: 0, positive unconditional: 601, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 621, positive: 601, positive conditional: 0, positive unconditional: 601, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 945, positive: 310, positive conditional: 0, positive unconditional: 310, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 621, unknown conditional: 0, unknown unconditional: 621] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - 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 5 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3956.5ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 993.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1859.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 60 SDtfs, 50 SDslu, 37 SDs, 0 SdLazy, 216 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 231.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 276.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=465occurred in iteration=9, InterpolantAutomatonStates: 63, 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: 35.8ms SsaConstructionTime, 202.8ms SatisfiabilityAnalysisTime, 670.4ms InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 1042 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...