/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:37:40,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:37:40,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:37:40,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 00:37:40,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 00:37:40,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 00:37:40,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 00:37:40,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 00:37:40,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 00:37:40,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 00:37:40,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 00:37:40,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 00:37:40,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:37:40,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:37:40,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:37:40,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:37:40,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:37:40,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:37:40,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:37:40,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:37:40,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:37:40,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:37:40,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:37:40,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:37:40,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-29 00:37:40,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-29 00:37:40,778 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-29 00:37:40,780 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-29 00:37:40,781 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-29 00:37:40,782 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-29 00:37:40,782 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-29 00:37:40,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-29 00:37:40,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-29 00:37:40,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-29 00:37:40,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-29 00:37:40,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-29 00:37:40,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-29 00:37:40,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-29 00:37:40,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:37:40,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:37:40,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:37:40,791 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 00:37:40,841 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:37:40,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:37:40,847 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:37:40,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:37:40,847 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:37:40,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:37:40,848 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:37:40,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:37:40,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:37:40,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:37:40,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:37:40,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:37:40,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:37:40,851 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:37:40,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:37:40,851 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:37:40,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:37:40,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:37:40,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:37:40,853 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:37:40,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:37:40,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:37:40,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:37:40,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:37:40,855 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:37:40,855 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:37:40,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:37:40,855 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:37:40,855 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:37:40,856 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:37:40,856 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:37:41,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:37:41,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:37:41,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:37:41,287 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:37:41,288 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:37:41,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_tso.opt.i [2021-04-29 00:37:41,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e02da49f3/c962c062f9aa407e9d527182c12401f6/FLAG8e8db82b3 [2021-04-29 00:37:41,996 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:37:41,997 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_tso.opt.i [2021-04-29 00:37:42,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e02da49f3/c962c062f9aa407e9d527182c12401f6/FLAG8e8db82b3 [2021-04-29 00:37:42,249 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e02da49f3/c962c062f9aa407e9d527182c12401f6 [2021-04-29 00:37:42,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:37:42,311 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:37:42,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:37:42,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:37:42,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:37:42,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:37:42" (1/1) ... [2021-04-29 00:37:42,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@512f4070 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:42, skipping insertion in model container [2021-04-29 00:37:42,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:37:42" (1/1) ... [2021-04-29 00:37:42,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:37:42,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:37:42,711 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/safe029_tso.opt.i[949,962] [2021-04-29 00:37:42,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:37:42,889 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:37:42,907 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/safe029_tso.opt.i[949,962] [2021-04-29 00:37:42,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:37:43,078 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:37:43,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:43 WrapperNode [2021-04-29 00:37:43,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:37:43,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:37:43,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:37:43,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:37:43,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:43" (1/1) ... [2021-04-29 00:37:43,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:43" (1/1) ... [2021-04-29 00:37:43,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:37:43,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:37:43,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:37:43,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:37:43,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:43" (1/1) ... [2021-04-29 00:37:43,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:43" (1/1) ... [2021-04-29 00:37:43,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:43" (1/1) ... [2021-04-29 00:37:43,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:43" (1/1) ... [2021-04-29 00:37:43,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:43" (1/1) ... [2021-04-29 00:37:43,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:43" (1/1) ... [2021-04-29 00:37:43,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:43" (1/1) ... [2021-04-29 00:37:43,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:37:43,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:37:43,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:37:43,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:37:43,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:37:43,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:37:43,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:37:43,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:37:43,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:37:43,261 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:37:43,262 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:37:43,263 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:37:43,263 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:37:43,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:37:43,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:37:43,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:37:43,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:37:43,266 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:37:43,738 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:37:43,738 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:37:43,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:37:43 BoogieIcfgContainer [2021-04-29 00:37:43,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:37:43,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:37:43,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:37:43,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:37:43,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:37:42" (1/3) ... [2021-04-29 00:37:43,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dda5243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:37:43, skipping insertion in model container [2021-04-29 00:37:43,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:37:43" (2/3) ... [2021-04-29 00:37:43,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dda5243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:37:43, skipping insertion in model container [2021-04-29 00:37:43,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:37:43" (3/3) ... [2021-04-29 00:37:43,750 INFO L111 eAbstractionObserver]: Analyzing ICFG safe029_tso.opt.i [2021-04-29 00:37:43,757 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:37:43,763 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:37:43,765 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:37:43,794 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,795 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,795 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,795 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,795 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,796 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,796 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,796 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,796 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,797 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,797 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,797 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,797 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,798 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,798 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,798 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,799 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,799 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,799 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,800 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,800 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,802 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,802 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,803 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,803 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,808 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,808 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,809 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,809 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:37:43,811 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:37:43,837 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-29 00:37:43,864 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:37:43,865 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:37:43,865 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:37:43,865 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:37:43,865 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:37:43,865 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:37:43,865 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:37:43,866 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:37:43,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 59 transitions, 128 flow [2021-04-29 00:37:43,915 INFO L129 PetriNetUnfolder]: 2/57 cut-off events. [2021-04-29 00:37:43,915 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:37:43,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 57 events. 2/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-04-29 00:37:43,919 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 59 transitions, 128 flow [2021-04-29 00:37:43,924 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 47 transitions, 100 flow [2021-04-29 00:37:43,926 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:37:43,943 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 47 transitions, 100 flow [2021-04-29 00:37:43,947 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 47 transitions, 100 flow [2021-04-29 00:37:43,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 47 transitions, 100 flow [2021-04-29 00:37:43,965 INFO L129 PetriNetUnfolder]: 1/47 cut-off events. [2021-04-29 00:37:43,965 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:37:43,966 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 47 events. 1/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2021-04-29 00:37:43,968 INFO L146 LiptonReduction]: Number of co-enabled transitions 456 [2021-04-29 00:37:47,748 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:37:49,406 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:37:49,576 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:37:49,733 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:37:50,042 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:37:50,232 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:37:50,398 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:37:50,589 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:37:50,776 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:37:50,954 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:37:51,162 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:37:51,312 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:37:51,476 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:37:51,691 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:37:52,235 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2021-04-29 00:37:52,504 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2021-04-29 00:37:52,757 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2021-04-29 00:37:53,013 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2021-04-29 00:37:53,118 INFO L158 LiptonReduction]: Checked pairs total: 3760 [2021-04-29 00:37:53,118 INFO L160 LiptonReduction]: Total number of compositions: 88 [2021-04-29 00:37:53,122 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9198 [2021-04-29 00:37:53,140 INFO L129 PetriNetUnfolder]: 0/48 cut-off events. [2021-04-29 00:37:53,140 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:37:53,141 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:37:53,142 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-29 00:37:53,143 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:37:53,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:37:53,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1039653936, now seen corresponding path program 1 times [2021-04-29 00:37:53,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:37:53,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243071072] [2021-04-29 00:37:53,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:37:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:37:53,387 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:53,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:37:53,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:37:53,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243071072] [2021-04-29 00:37:53,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:37:53,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:37:53,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745702346] [2021-04-29 00:37:53,408 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:37:53,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:37:53,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:37:53,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:37:53,427 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 147 [2021-04-29 00:37:53,431 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 59 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:53,431 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:37:53,432 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 147 [2021-04-29 00:37:53,433 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:37:53,524 INFO L129 PetriNetUnfolder]: 25/128 cut-off events. [2021-04-29 00:37:53,524 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:37:53,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 128 events. 25/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 653 event pairs, 7 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 160. Up to 50 conditions per place. [2021-04-29 00:37:53,527 INFO L132 encePairwiseOnDemand]: 138/147 looper letters, 3 selfloop transitions, 3 changer transitions 35/66 dead transitions. [2021-04-29 00:37:53,527 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 66 transitions, 180 flow [2021-04-29 00:37:53,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:37:53,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:37:53,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2021-04-29 00:37:53,544 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7664399092970522 [2021-04-29 00:37:53,545 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 338 transitions. [2021-04-29 00:37:53,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 338 transitions. [2021-04-29 00:37:53,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:37:53,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 338 transitions. [2021-04-29 00:37:53,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:53,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:53,566 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:53,568 INFO L185 Difference]: Start difference. First operand has 66 places, 59 transitions, 124 flow. Second operand 3 states and 338 transitions. [2021-04-29 00:37:53,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 66 transitions, 180 flow [2021-04-29 00:37:53,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 66 transitions, 178 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:37:53,576 INFO L241 Difference]: Finished difference. Result has 67 places, 31 transitions, 81 flow [2021-04-29 00:37:53,578 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=67, PETRI_TRANSITIONS=31} [2021-04-29 00:37:53,580 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 1 predicate places. [2021-04-29 00:37:53,580 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:37:53,580 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 31 transitions, 81 flow [2021-04-29 00:37:53,581 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 31 transitions, 81 flow [2021-04-29 00:37:53,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 31 transitions, 81 flow [2021-04-29 00:37:53,588 INFO L129 PetriNetUnfolder]: 3/41 cut-off events. [2021-04-29 00:37:53,588 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:37:53,589 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 41 events. 3/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 153 event pairs, 1 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 52. Up to 10 conditions per place. [2021-04-29 00:37:53,590 INFO L146 LiptonReduction]: Number of co-enabled transitions 450 [2021-04-29 00:37:53,602 INFO L158 LiptonReduction]: Checked pairs total: 178 [2021-04-29 00:37:53,602 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:37:53,602 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-04-29 00:37:53,604 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 31 transitions, 81 flow [2021-04-29 00:37:53,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:53,605 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:37:53,605 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:37:53,606 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:37:53,606 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:37:53,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:37:53,607 INFO L82 PathProgramCache]: Analyzing trace with hash 2130465066, now seen corresponding path program 1 times [2021-04-29 00:37:53,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:37:53,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848163713] [2021-04-29 00:37:53,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:37:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:37:53,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:53,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:37:53,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:37:53,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848163713] [2021-04-29 00:37:53,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:37:53,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:37:53,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807883063] [2021-04-29 00:37:53,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:37:53,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:37:53,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:37:53,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:37:53,707 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 147 [2021-04-29 00:37:53,708 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:53,708 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:37:53,708 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 147 [2021-04-29 00:37:53,708 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:37:53,723 INFO L129 PetriNetUnfolder]: 7/56 cut-off events. [2021-04-29 00:37:53,724 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-04-29 00:37:53,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 56 events. 7/56 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 217 event pairs, 3 based on Foata normal form. 1/34 useless extension candidates. Maximal degree in co-relation 84. Up to 15 conditions per place. [2021-04-29 00:37:53,725 INFO L132 encePairwiseOnDemand]: 143/147 looper letters, 3 selfloop transitions, 3 changer transitions 0/33 dead transitions. [2021-04-29 00:37:53,725 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 33 transitions, 97 flow [2021-04-29 00:37:53,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:37:53,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:37:53,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2021-04-29 00:37:53,729 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7097505668934241 [2021-04-29 00:37:53,729 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 313 transitions. [2021-04-29 00:37:53,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 313 transitions. [2021-04-29 00:37:53,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:37:53,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 313 transitions. [2021-04-29 00:37:53,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:53,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:53,735 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:53,735 INFO L185 Difference]: Start difference. First operand has 37 places, 31 transitions, 81 flow. Second operand 3 states and 313 transitions. [2021-04-29 00:37:53,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 33 transitions, 97 flow [2021-04-29 00:37:53,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 33 transitions, 94 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:37:53,737 INFO L241 Difference]: Finished difference. Result has 39 places, 33 transitions, 97 flow [2021-04-29 00:37:53,737 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=39, PETRI_TRANSITIONS=33} [2021-04-29 00:37:53,738 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -27 predicate places. [2021-04-29 00:37:53,738 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:37:53,738 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 33 transitions, 97 flow [2021-04-29 00:37:53,739 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 33 transitions, 97 flow [2021-04-29 00:37:53,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 33 transitions, 97 flow [2021-04-29 00:37:53,748 INFO L129 PetriNetUnfolder]: 8/54 cut-off events. [2021-04-29 00:37:53,748 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-29 00:37:53,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 54 events. 8/54 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 236 event pairs, 3 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 83. Up to 15 conditions per place. [2021-04-29 00:37:53,750 INFO L146 LiptonReduction]: Number of co-enabled transitions 492 [2021-04-29 00:37:53,753 INFO L158 LiptonReduction]: Checked pairs total: 16 [2021-04-29 00:37:53,754 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:37:53,754 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-04-29 00:37:53,755 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 33 transitions, 97 flow [2021-04-29 00:37:53,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:53,756 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:37:53,756 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:37:53,756 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:37:53,756 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:37:53,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:37:53,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1619905514, now seen corresponding path program 1 times [2021-04-29 00:37:53,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:37:53,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509883954] [2021-04-29 00:37:53,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:37:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:37:53,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:53,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:37:53,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:53,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:37:53,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:37:53,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509883954] [2021-04-29 00:37:53,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:37:53,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:37:53,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465672675] [2021-04-29 00:37:53,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:37:53,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:37:53,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:37:53,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:37:53,846 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 147 [2021-04-29 00:37:53,846 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:53,846 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:37:53,847 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 147 [2021-04-29 00:37:53,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:37:53,872 INFO L129 PetriNetUnfolder]: 4/58 cut-off events. [2021-04-29 00:37:53,873 INFO L130 PetriNetUnfolder]: For 21/27 co-relation queries the response was YES. [2021-04-29 00:37:53,873 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 58 events. 4/58 cut-off events. For 21/27 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 242 event pairs, 2 based on Foata normal form. 4/37 useless extension candidates. Maximal degree in co-relation 95. Up to 14 conditions per place. [2021-04-29 00:37:53,874 INFO L132 encePairwiseOnDemand]: 144/147 looper letters, 3 selfloop transitions, 3 changer transitions 1/33 dead transitions. [2021-04-29 00:37:53,874 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 33 transitions, 109 flow [2021-04-29 00:37:53,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:37:53,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:37:53,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 312 transitions. [2021-04-29 00:37:53,877 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7074829931972789 [2021-04-29 00:37:53,877 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 312 transitions. [2021-04-29 00:37:53,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 312 transitions. [2021-04-29 00:37:53,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:37:53,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 312 transitions. [2021-04-29 00:37:53,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:53,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:53,882 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:53,882 INFO L185 Difference]: Start difference. First operand has 39 places, 33 transitions, 97 flow. Second operand 3 states and 312 transitions. [2021-04-29 00:37:53,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 33 transitions, 109 flow [2021-04-29 00:37:53,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 33 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:37:53,884 INFO L241 Difference]: Finished difference. Result has 41 places, 32 transitions, 103 flow [2021-04-29 00:37:53,884 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=41, PETRI_TRANSITIONS=32} [2021-04-29 00:37:53,885 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -25 predicate places. [2021-04-29 00:37:53,885 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:37:53,885 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 32 transitions, 103 flow [2021-04-29 00:37:53,885 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 32 transitions, 103 flow [2021-04-29 00:37:53,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 32 transitions, 103 flow [2021-04-29 00:37:53,893 INFO L129 PetriNetUnfolder]: 4/61 cut-off events. [2021-04-29 00:37:53,894 INFO L130 PetriNetUnfolder]: For 28/29 co-relation queries the response was YES. [2021-04-29 00:37:53,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 61 events. 4/61 cut-off events. For 28/29 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 274 event pairs, 2 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 98. Up to 14 conditions per place. [2021-04-29 00:37:53,895 INFO L146 LiptonReduction]: Number of co-enabled transitions 454 [2021-04-29 00:37:53,900 INFO L158 LiptonReduction]: Checked pairs total: 15 [2021-04-29 00:37:53,901 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:37:53,901 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-04-29 00:37:53,902 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 103 flow [2021-04-29 00:37:53,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:53,903 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:37:53,903 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:37:53,903 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:37:53,903 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:37:53,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:37:53,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1619907281, now seen corresponding path program 1 times [2021-04-29 00:37:53,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:37:53,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312653319] [2021-04-29 00:37:53,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:37:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:37:53,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:53,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:37:53,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:53,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:37:53,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:37:53,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312653319] [2021-04-29 00:37:53,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:37:53,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:37:53,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993377032] [2021-04-29 00:37:53,960 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:37:53,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:37:53,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:37:53,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:37:53,962 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 147 [2021-04-29 00:37:53,963 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 32 transitions, 103 flow. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:53,963 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:37:53,963 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 147 [2021-04-29 00:37:53,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:37:54,199 INFO L129 PetriNetUnfolder]: 595/1281 cut-off events. [2021-04-29 00:37:54,199 INFO L130 PetriNetUnfolder]: For 341/567 co-relation queries the response was YES. [2021-04-29 00:37:54,202 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2648 conditions, 1281 events. 595/1281 cut-off events. For 341/567 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 10756 event pairs, 174 based on Foata normal form. 32/333 useless extension candidates. Maximal degree in co-relation 2635. Up to 808 conditions per place. [2021-04-29 00:37:54,206 INFO L132 encePairwiseOnDemand]: 132/147 looper letters, 18 selfloop transitions, 19 changer transitions 9/59 dead transitions. [2021-04-29 00:37:54,206 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 59 transitions, 249 flow [2021-04-29 00:37:54,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:37:54,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:37:54,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 469 transitions. [2021-04-29 00:37:54,209 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.638095238095238 [2021-04-29 00:37:54,209 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 469 transitions. [2021-04-29 00:37:54,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 469 transitions. [2021-04-29 00:37:54,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:37:54,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 469 transitions. [2021-04-29 00:37:54,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:54,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:54,214 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 147.0) internal successors, (882), 6 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:54,215 INFO L185 Difference]: Start difference. First operand has 40 places, 32 transitions, 103 flow. Second operand 5 states and 469 transitions. [2021-04-29 00:37:54,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 59 transitions, 249 flow [2021-04-29 00:37:54,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 59 transitions, 244 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-29 00:37:54,218 INFO L241 Difference]: Finished difference. Result has 46 places, 49 transitions, 240 flow [2021-04-29 00:37:54,218 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=240, PETRI_PLACES=46, PETRI_TRANSITIONS=49} [2021-04-29 00:37:54,219 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -20 predicate places. [2021-04-29 00:37:54,219 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:37:54,219 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 49 transitions, 240 flow [2021-04-29 00:37:54,219 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 49 transitions, 240 flow [2021-04-29 00:37:54,220 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 49 transitions, 240 flow [2021-04-29 00:37:54,298 INFO L129 PetriNetUnfolder]: 175/764 cut-off events. [2021-04-29 00:37:54,298 INFO L130 PetriNetUnfolder]: For 415/441 co-relation queries the response was YES. [2021-04-29 00:37:54,300 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2045 conditions, 764 events. 175/764 cut-off events. For 415/441 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 8412 event pairs, 139 based on Foata normal form. 4/221 useless extension candidates. Maximal degree in co-relation 2030. Up to 621 conditions per place. [2021-04-29 00:37:54,308 INFO L146 LiptonReduction]: Number of co-enabled transitions 476 [2021-04-29 00:37:54,315 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:37:54,316 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:37:54,316 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 97 [2021-04-29 00:37:54,317 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 49 transitions, 240 flow [2021-04-29 00:37:54,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:54,318 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:37:54,318 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:37:54,319 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:37:54,319 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:37:54,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:37:54,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1335132336, now seen corresponding path program 1 times [2021-04-29 00:37:54,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:37:54,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605720893] [2021-04-29 00:37:54,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:37:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:37:54,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:54,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:37:54,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:54,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:37:54,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:37:54,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605720893] [2021-04-29 00:37:54,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:37:54,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:37:54,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931083153] [2021-04-29 00:37:54,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:37:54,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:37:54,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:37:54,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:37:54,367 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 147 [2021-04-29 00:37:54,368 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 49 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:54,368 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:37:54,368 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 147 [2021-04-29 00:37:54,368 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:37:54,488 INFO L129 PetriNetUnfolder]: 63/865 cut-off events. [2021-04-29 00:37:54,488 INFO L130 PetriNetUnfolder]: For 680/1602 co-relation queries the response was YES. [2021-04-29 00:37:54,490 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2377 conditions, 865 events. 63/865 cut-off events. For 680/1602 co-relation queries the response was YES. Maximal size of possible extension queue 513. Compared 11519 event pairs, 0 based on Foata normal form. 25/248 useless extension candidates. Maximal degree in co-relation 2360. Up to 684 conditions per place. [2021-04-29 00:37:54,493 INFO L132 encePairwiseOnDemand]: 144/147 looper letters, 3 selfloop transitions, 3 changer transitions 23/49 dead transitions. [2021-04-29 00:37:54,493 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 49 transitions, 252 flow [2021-04-29 00:37:54,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:37:54,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:37:54,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 321 transitions. [2021-04-29 00:37:54,504 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7278911564625851 [2021-04-29 00:37:54,505 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 321 transitions. [2021-04-29 00:37:54,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 321 transitions. [2021-04-29 00:37:54,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:37:54,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 321 transitions. [2021-04-29 00:37:54,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:54,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:54,510 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:54,510 INFO L185 Difference]: Start difference. First operand has 46 places, 49 transitions, 240 flow. Second operand 3 states and 321 transitions. [2021-04-29 00:37:54,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 49 transitions, 252 flow [2021-04-29 00:37:54,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 49 transitions, 252 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:37:54,524 INFO L241 Difference]: Finished difference. Result has 49 places, 26 transitions, 142 flow [2021-04-29 00:37:54,524 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=49, PETRI_TRANSITIONS=26} [2021-04-29 00:37:54,525 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -17 predicate places. [2021-04-29 00:37:54,525 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:37:54,525 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 26 transitions, 142 flow [2021-04-29 00:37:54,525 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 26 transitions, 142 flow [2021-04-29 00:37:54,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 26 transitions, 142 flow [2021-04-29 00:37:54,542 INFO L129 PetriNetUnfolder]: 48/182 cut-off events. [2021-04-29 00:37:54,543 INFO L130 PetriNetUnfolder]: For 144/147 co-relation queries the response was YES. [2021-04-29 00:37:54,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 182 events. 48/182 cut-off events. For 144/147 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 1198 event pairs, 21 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 485. Up to 121 conditions per place. [2021-04-29 00:37:54,545 INFO L146 LiptonReduction]: Number of co-enabled transitions 62 [2021-04-29 00:37:54,548 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:37:54,548 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:37:54,548 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-04-29 00:37:54,553 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 26 transitions, 142 flow [2021-04-29 00:37:54,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:54,554 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:37:54,554 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:37:54,555 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:37:54,556 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:37:54,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:37:54,567 INFO L82 PathProgramCache]: Analyzing trace with hash -444964118, now seen corresponding path program 1 times [2021-04-29 00:37:54,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:37:54,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846552795] [2021-04-29 00:37:54,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:37:54,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:37:54,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:54,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:37:54,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:54,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:37:54,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:37:54,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:37:54,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:37:54,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846552795] [2021-04-29 00:37:54,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:37:54,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:37:54,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610584360] [2021-04-29 00:37:54,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:37:54,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:37:54,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:37:54,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:37:54,670 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 147 [2021-04-29 00:37:54,671 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 142 flow. Second operand has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:54,671 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:37:54,671 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 147 [2021-04-29 00:37:54,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:37:54,753 INFO L129 PetriNetUnfolder]: 54/185 cut-off events. [2021-04-29 00:37:54,753 INFO L130 PetriNetUnfolder]: For 196/262 co-relation queries the response was YES. [2021-04-29 00:37:54,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 636 conditions, 185 events. 54/185 cut-off events. For 196/262 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 1198 event pairs, 0 based on Foata normal form. 12/105 useless extension candidates. Maximal degree in co-relation 625. Up to 118 conditions per place. [2021-04-29 00:37:54,754 INFO L132 encePairwiseOnDemand]: 138/147 looper letters, 0 selfloop transitions, 0 changer transitions 32/32 dead transitions. [2021-04-29 00:37:54,755 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 32 transitions, 204 flow [2021-04-29 00:37:54,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 00:37:54,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 00:37:54,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 532 transitions. [2021-04-29 00:37:54,757 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6031746031746031 [2021-04-29 00:37:54,757 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 532 transitions. [2021-04-29 00:37:54,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 532 transitions. [2021-04-29 00:37:54,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:37:54,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 532 transitions. [2021-04-29 00:37:54,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.66666666666667) internal successors, (532), 6 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:54,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:54,764 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:54,764 INFO L185 Difference]: Start difference. First operand has 35 places, 26 transitions, 142 flow. Second operand 6 states and 532 transitions. [2021-04-29 00:37:54,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 32 transitions, 204 flow [2021-04-29 00:37:54,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 32 transitions, 181 flow, removed 7 selfloop flow, removed 4 redundant places. [2021-04-29 00:37:54,766 INFO L241 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2021-04-29 00:37:54,766 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2021-04-29 00:37:54,767 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -31 predicate places. [2021-04-29 00:37:54,767 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:37:54,767 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 0 transitions, 0 flow [2021-04-29 00:37:54,767 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 0 transitions, 0 flow [2021-04-29 00:37:54,768 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:37:54,768 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:37:54,768 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:37:54,768 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 00:37:54,768 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:37:54,769 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:37:54,769 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:37:54,769 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:37:54,775 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:37:54,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:37:54,776 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:37:54,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:37:54 BasicIcfg [2021-04-29 00:37:54,780 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:37:54,788 INFO L168 Benchmark]: Toolchain (without parser) took 12524.87 ms. Allocated memory was 333.4 MB in the beginning and 494.9 MB in the end (delta: 161.5 MB). Free memory was 302.0 MB in the beginning and 339.1 MB in the end (delta: -37.0 MB). Peak memory consumption was 122.7 MB. Max. memory is 16.0 GB. [2021-04-29 00:37:54,788 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 333.4 MB. Free memory is still 301.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:37:54,789 INFO L168 Benchmark]: CACSL2BoogieTranslator took 764.59 ms. Allocated memory is still 333.4 MB. Free memory was 298.9 MB in the beginning and 294.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-04-29 00:37:54,790 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.42 ms. Allocated memory is still 333.4 MB. Free memory was 294.6 MB in the beginning and 292.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:37:54,792 INFO L168 Benchmark]: Boogie Preprocessor took 25.69 ms. Allocated memory is still 333.4 MB. Free memory was 292.5 MB in the beginning and 291.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:37:54,796 INFO L168 Benchmark]: RCFGBuilder took 587.32 ms. Allocated memory is still 333.4 MB. Free memory was 291.4 MB in the beginning and 311.2 MB in the end (delta: -19.8 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.0 GB. [2021-04-29 00:37:54,797 INFO L168 Benchmark]: TraceAbstraction took 11037.64 ms. Allocated memory was 333.4 MB in the beginning and 494.9 MB in the end (delta: 161.5 MB). Free memory was 310.6 MB in the beginning and 339.1 MB in the end (delta: -28.5 MB). Peak memory consumption was 133.0 MB. Max. memory is 16.0 GB. [2021-04-29 00:37:54,801 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 333.4 MB. Free memory is still 301.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 764.59 ms. Allocated memory is still 333.4 MB. Free memory was 298.9 MB in the beginning and 294.6 MB in the end (delta: 4.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 46.42 ms. Allocated memory is still 333.4 MB. Free memory was 294.6 MB in the beginning and 292.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 25.69 ms. Allocated memory is still 333.4 MB. Free memory was 292.5 MB in the beginning and 291.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 587.32 ms. Allocated memory is still 333.4 MB. Free memory was 291.4 MB in the beginning and 311.2 MB in the end (delta: -19.8 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 11037.64 ms. Allocated memory was 333.4 MB in the beginning and 494.9 MB in the end (delta: 161.5 MB). Free memory was 310.6 MB in the beginning and 339.1 MB in the end (delta: -28.5 MB). Peak memory consumption was 133.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9170.9ms, 53 PlacesBefore, 66 PlacesAfterwards, 47 TransitionsBefore, 59 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 88 TotalNumberOfCompositions, 3760 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1201, positive: 1041, positive conditional: 1041, positive unconditional: 0, negative: 160, negative conditional: 160, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 563, positive: 518, positive conditional: 0, positive unconditional: 518, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 563, positive: 518, positive conditional: 0, positive unconditional: 518, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 563, positive: 507, positive conditional: 0, positive unconditional: 507, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 56, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 285, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 223, negative conditional: 0, negative unconditional: 223, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1201, positive: 523, positive conditional: 523, positive unconditional: 0, negative: 115, negative conditional: 115, negative unconditional: 0, unknown: 563, unknown conditional: 563, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 555, Positive cache size: 510, Positive conditional cache size: 510, Positive unconditional cache size: 0, Negative cache size: 45, Negative conditional cache size: 45, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.6ms, 67 PlacesBefore, 37 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 178 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 52, positive: 43, positive conditional: 43, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 52, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 563, Positive cache size: 516, Positive conditional cache size: 516, Positive unconditional cache size: 0, Negative cache size: 47, Negative conditional cache size: 47, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.9ms, 39 PlacesBefore, 39 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 492 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 16 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 564, Positive cache size: 517, Positive conditional cache size: 517, Positive unconditional cache size: 0, Negative cache size: 47, Negative conditional cache size: 47, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.3ms, 41 PlacesBefore, 40 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 454 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 15 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 567, Positive cache size: 520, Positive conditional cache size: 520, Positive unconditional cache size: 0, Negative cache size: 47, Negative conditional cache size: 47, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 96.4ms, 46 PlacesBefore, 46 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 476 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 567, Positive cache size: 520, Positive conditional cache size: 520, Positive unconditional cache size: 0, Negative cache size: 47, Negative conditional cache size: 47, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.7ms, 49 PlacesBefore, 35 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 62 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 567, Positive cache size: 520, Positive conditional cache size: 520, Positive unconditional cache size: 0, Negative cache size: 47, Negative conditional cache size: 47, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6ms, 35 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 567, Positive cache size: 520, Positive conditional cache size: 520, Positive unconditional cache size: 0, Negative cache size: 47, Negative conditional cache size: 47, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 10.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 10917.5ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 748.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9264.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 35 SDtfs, 18 SDslu, 3 SDs, 0 SdLazy, 125 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 153.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 46.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=240occurred in iteration=4, InterpolantAutomatonStates: 23, 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: 15.6ms SsaConstructionTime, 145.4ms SatisfiabilityAnalysisTime, 331.1ms InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...