/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:48:39,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:48:39,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:48:39,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:48:39,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:48:39,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:48:39,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:48:39,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:48:39,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:48:39,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:48:39,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:48:39,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:48:39,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:48:39,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:48:39,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:48:39,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:48:39,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:48:39,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:48:39,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:48:39,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:48:39,884 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 00:48:39,939 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:48:39,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:48:39,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:48:39,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:48:39,943 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:48:39,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:48:39,943 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:48:39,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:48:39,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:48:39,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:48:39,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:48:39,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:48:39,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:48:39,946 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:48:39,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:48:39,947 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:48:39,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:48:39,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:48:39,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:48:39,948 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:48:39,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:48:39,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:48:39,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:48:39,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:48:39,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:48:39,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:48:39,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:48:39,950 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:48:39,951 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:48:39,951 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:48:39,951 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:48:40,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:48:40,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:48:40,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:48:40,442 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:48:40,443 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:48:40,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_pso.opt.i [2021-04-29 00:48:40,535 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1539ae636/346836fa1bbf4e7aa7fe96dbce5430a7/FLAG8e2c7f867 [2021-04-29 00:48:41,454 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:48:41,455 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_pso.opt.i [2021-04-29 00:48:41,476 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1539ae636/346836fa1bbf4e7aa7fe96dbce5430a7/FLAG8e2c7f867 [2021-04-29 00:48:41,664 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1539ae636/346836fa1bbf4e7aa7fe96dbce5430a7 [2021-04-29 00:48:41,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:48:41,721 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:48:41,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:48:41,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:48:41,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:48:41,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:48:41" (1/1) ... [2021-04-29 00:48:41,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26b5e30b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:41, skipping insertion in model container [2021-04-29 00:48:41,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:48:41" (1/1) ... [2021-04-29 00:48:41,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:48:41,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:48:41,970 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_pso.opt.i[949,962] [2021-04-29 00:48:42,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:48:42,194 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:48:42,210 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_pso.opt.i[949,962] [2021-04-29 00:48:42,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:48:42,388 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:48:42,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:42 WrapperNode [2021-04-29 00:48:42,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:48:42,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:48:42,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:48:42,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:48:42,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:42" (1/1) ... [2021-04-29 00:48:42,441 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:42" (1/1) ... [2021-04-29 00:48:42,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:48:42,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:48:42,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:48:42,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:48:42,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:42" (1/1) ... [2021-04-29 00:48:42,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:42" (1/1) ... [2021-04-29 00:48:42,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:42" (1/1) ... [2021-04-29 00:48:42,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:42" (1/1) ... [2021-04-29 00:48:42,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:42" (1/1) ... [2021-04-29 00:48:42,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:42" (1/1) ... [2021-04-29 00:48:42,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:42" (1/1) ... [2021-04-29 00:48:42,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:48:42,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:48:42,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:48:42,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:48:42,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:48:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:48:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:48:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:48:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:48:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:48:42,603 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:48:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:48:42,603 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:48:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:48:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:48:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:48:42,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:48:42,606 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:48:43,003 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:48:43,004 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:48:43,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:48:43 BoogieIcfgContainer [2021-04-29 00:48:43,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:48:43,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:48:43,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:48:43,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:48:43,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:48:41" (1/3) ... [2021-04-29 00:48:43,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd30ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:48:43, skipping insertion in model container [2021-04-29 00:48:43,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:42" (2/3) ... [2021-04-29 00:48:43,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd30ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:48:43, skipping insertion in model container [2021-04-29 00:48:43,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:48:43" (3/3) ... [2021-04-29 00:48:43,017 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_pso.opt.i [2021-04-29 00:48:43,025 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:48:43,036 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:48:43,037 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:48:43,096 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,096 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,096 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,097 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,098 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,099 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,099 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,099 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,100 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,100 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,100 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,100 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,105 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,105 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,105 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,106 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,108 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,111 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,111 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,112 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,113 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,120 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,120 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,120 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:43,123 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:48:43,147 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-29 00:48:43,197 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:48:43,198 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:48:43,199 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:48:43,199 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:48:43,199 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:48:43,200 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:48:43,200 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:48:43,201 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:48:43,220 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 132 flow [2021-04-29 00:48:43,299 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2021-04-29 00:48:43,299 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:48:43,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 59 events. 2/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-04-29 00:48:43,308 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 61 transitions, 132 flow [2021-04-29 00:48:43,327 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 49 transitions, 104 flow [2021-04-29 00:48:43,329 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:48:43,351 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 49 transitions, 104 flow [2021-04-29 00:48:43,356 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 49 transitions, 104 flow [2021-04-29 00:48:43,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 49 transitions, 104 flow [2021-04-29 00:48:43,398 INFO L129 PetriNetUnfolder]: 1/49 cut-off events. [2021-04-29 00:48:43,399 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:48:43,400 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 31 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2021-04-29 00:48:43,403 INFO L146 LiptonReduction]: Number of co-enabled transitions 456 [2021-04-29 00:48:47,649 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:48:47,795 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:48:48,097 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:48:48,239 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:48:48,562 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:48:48,733 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:48:48,909 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:48:49,078 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:48:50,262 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:48:50,462 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:48:50,659 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:48:50,856 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:48:51,308 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:48:51,493 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:48:52,584 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:48:52,817 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:48:53,027 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:48:53,239 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:48:53,436 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:48:53,634 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:48:53,799 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:48:54,080 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:48:54,246 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:48:54,430 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:48:54,821 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-04-29 00:48:55,146 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-04-29 00:48:55,407 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:48:55,649 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:48:55,884 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:48:56,108 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:48:56,381 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-04-29 00:48:56,675 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-04-29 00:48:56,898 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:48:57,062 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:48:57,152 INFO L158 LiptonReduction]: Checked pairs total: 4286 [2021-04-29 00:48:57,153 INFO L160 LiptonReduction]: Total number of compositions: 108 [2021-04-29 00:48:57,157 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13829 [2021-04-29 00:48:57,179 INFO L129 PetriNetUnfolder]: 0/58 cut-off events. [2021-04-29 00:48:57,179 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:48:57,180 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:48:57,181 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-29 00:48:57,181 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:48:57,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:48:57,188 INFO L82 PathProgramCache]: Analyzing trace with hash -434415720, now seen corresponding path program 1 times [2021-04-29 00:48:57,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:48:57,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535050517] [2021-04-29 00:48:57,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:48:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:48:57,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:48:57,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:48:57,504 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:48:57,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:48:57,530 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 00:48:57,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535050517] [2021-04-29 00:48:57,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:48:57,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:48:57,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326556056] [2021-04-29 00:48:57,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:48:57,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:48:57,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:48:57,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:48:57,572 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 169 [2021-04-29 00:48:57,579 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 66 transitions, 138 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:48:57,580 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:48:57,580 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 169 [2021-04-29 00:48:57,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:48:57,924 INFO L129 PetriNetUnfolder]: 408/849 cut-off events. [2021-04-29 00:48:57,924 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:48:57,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1679 conditions, 849 events. 408/849 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 6204 event pairs, 144 based on Foata normal form. 16/223 useless extension candidates. Maximal degree in co-relation 1627. Up to 592 conditions per place. [2021-04-29 00:48:57,934 INFO L132 encePairwiseOnDemand]: 134/169 looper letters, 8 selfloop transitions, 7 changer transitions 68/93 dead transitions. [2021-04-29 00:48:57,935 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 93 transitions, 324 flow [2021-04-29 00:48:57,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:48:57,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:48:57,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 546 transitions. [2021-04-29 00:48:57,970 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6461538461538462 [2021-04-29 00:48:57,971 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 546 transitions. [2021-04-29 00:48:57,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 546 transitions. [2021-04-29 00:48:57,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:48:57,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 546 transitions. [2021-04-29 00:48:57,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.2) internal successors, (546), 5 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:48:58,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:48:58,005 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:48:58,008 INFO L185 Difference]: Start difference. First operand has 73 places, 66 transitions, 138 flow. Second operand 5 states and 546 transitions. [2021-04-29 00:48:58,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 93 transitions, 324 flow [2021-04-29 00:48:58,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 93 transitions, 322 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:48:58,017 INFO L241 Difference]: Finished difference. Result has 78 places, 25 transitions, 105 flow [2021-04-29 00:48:58,021 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=105, PETRI_PLACES=78, PETRI_TRANSITIONS=25} [2021-04-29 00:48:58,022 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, 5 predicate places. [2021-04-29 00:48:58,022 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:48:58,022 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 25 transitions, 105 flow [2021-04-29 00:48:58,024 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 25 transitions, 105 flow [2021-04-29 00:48:58,024 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 25 transitions, 105 flow [2021-04-29 00:48:58,045 INFO L129 PetriNetUnfolder]: 45/101 cut-off events. [2021-04-29 00:48:58,045 INFO L130 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2021-04-29 00:48:58,046 INFO L84 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 101 events. 45/101 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 465 event pairs, 18 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 266. Up to 76 conditions per place. [2021-04-29 00:48:58,047 INFO L146 LiptonReduction]: Number of co-enabled transitions 138 [2021-04-29 00:48:58,059 INFO L158 LiptonReduction]: Checked pairs total: 160 [2021-04-29 00:48:58,059 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:48:58,060 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-04-29 00:48:58,063 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 25 transitions, 105 flow [2021-04-29 00:48:58,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:48:58,064 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:48:58,064 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:48:58,065 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:48:58,065 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:48:58,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:48:58,079 INFO L82 PathProgramCache]: Analyzing trace with hash -62563635, now seen corresponding path program 1 times [2021-04-29 00:48:58,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:48:58,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549193477] [2021-04-29 00:48:58,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:48:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:48:58,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:48:58,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:48:58,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:48:58,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:48:58,215 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:48:58,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:48:58,224 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 00:48:58,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549193477] [2021-04-29 00:48:58,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:48:58,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:48:58,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526112919] [2021-04-29 00:48:58,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:48:58,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:48:58,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:48:58,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:48:58,231 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 169 [2021-04-29 00:48:58,233 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 105 flow. Second operand has 5 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:48:58,233 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:48:58,234 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 169 [2021-04-29 00:48:58,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:48:58,308 INFO L129 PetriNetUnfolder]: 18/77 cut-off events. [2021-04-29 00:48:58,308 INFO L130 PetriNetUnfolder]: For 44/56 co-relation queries the response was YES. [2021-04-29 00:48:58,309 INFO L84 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 77 events. 18/77 cut-off events. For 44/56 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 327 event pairs, 0 based on Foata normal form. 17/62 useless extension candidates. Maximal degree in co-relation 260. Up to 58 conditions per place. [2021-04-29 00:48:58,309 INFO L132 encePairwiseOnDemand]: 160/169 looper letters, 2 selfloop transitions, 13 changer transitions 9/32 dead transitions. [2021-04-29 00:48:58,310 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 32 transitions, 189 flow [2021-04-29 00:48:58,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 00:48:58,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 00:48:58,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 588 transitions. [2021-04-29 00:48:58,313 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5798816568047337 [2021-04-29 00:48:58,313 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 588 transitions. [2021-04-29 00:48:58,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 588 transitions. [2021-04-29 00:48:58,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:48:58,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 588 transitions. [2021-04-29 00:48:58,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:48:58,321 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 169.0) internal successors, (1183), 7 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:48:58,322 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 169.0) internal successors, (1183), 7 states have internal predecessors, (1183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:48:58,323 INFO L185 Difference]: Start difference. First operand has 29 places, 25 transitions, 105 flow. Second operand 6 states and 588 transitions. [2021-04-29 00:48:58,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 32 transitions, 189 flow [2021-04-29 00:48:58,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 32 transitions, 156 flow, removed 13 selfloop flow, removed 2 redundant places. [2021-04-29 00:48:58,327 INFO L241 Difference]: Finished difference. Result has 35 places, 23 transitions, 124 flow [2021-04-29 00:48:58,327 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=124, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2021-04-29 00:48:58,328 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -38 predicate places. [2021-04-29 00:48:58,328 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:48:58,329 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 23 transitions, 124 flow [2021-04-29 00:48:58,329 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 23 transitions, 124 flow [2021-04-29 00:48:58,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 23 transitions, 124 flow [2021-04-29 00:48:58,337 INFO L129 PetriNetUnfolder]: 9/51 cut-off events. [2021-04-29 00:48:58,337 INFO L130 PetriNetUnfolder]: For 36/42 co-relation queries the response was YES. [2021-04-29 00:48:58,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 51 events. 9/51 cut-off events. For 36/42 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 198 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 162. Up to 34 conditions per place. [2021-04-29 00:48:58,339 INFO L146 LiptonReduction]: Number of co-enabled transitions 84 [2021-04-29 00:48:58,342 INFO L158 LiptonReduction]: Checked pairs total: 112 [2021-04-29 00:48:58,342 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:48:58,343 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-04-29 00:48:58,345 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 124 flow [2021-04-29 00:48:58,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:48:58,346 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:48:58,346 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:48:58,347 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:48:58,347 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:48:58,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:48:58,348 INFO L82 PathProgramCache]: Analyzing trace with hash -33914205, now seen corresponding path program 1 times [2021-04-29 00:48:58,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:48:58,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990034110] [2021-04-29 00:48:58,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:48:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:48:58,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:48:58,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:48:58,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:48:58,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:48:58,465 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-29 00:48:58,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:48:58,478 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 00:48:58,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990034110] [2021-04-29 00:48:58,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:48:58,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:48:58,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730460158] [2021-04-29 00:48:58,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:48:58,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:48:58,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:48:58,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:48:58,487 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 169 [2021-04-29 00:48:58,489 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 23 transitions, 124 flow. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:48:58,489 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:48:58,489 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 169 [2021-04-29 00:48:58,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:48:58,534 INFO L129 PetriNetUnfolder]: 19/92 cut-off events. [2021-04-29 00:48:58,535 INFO L130 PetriNetUnfolder]: For 129/141 co-relation queries the response was YES. [2021-04-29 00:48:58,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 92 events. 19/92 cut-off events. For 129/141 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 469 event pairs, 0 based on Foata normal form. 9/63 useless extension candidates. Maximal degree in co-relation 310. Up to 70 conditions per place. [2021-04-29 00:48:58,539 INFO L132 encePairwiseOnDemand]: 165/169 looper letters, 4 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2021-04-29 00:48:58,539 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 25 transitions, 142 flow [2021-04-29 00:48:58,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:48:58,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:48:58,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 384 transitions. [2021-04-29 00:48:58,546 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5680473372781065 [2021-04-29 00:48:58,547 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 384 transitions. [2021-04-29 00:48:58,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 384 transitions. [2021-04-29 00:48:58,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:48:58,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 384 transitions. [2021-04-29 00:48:58,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:48:58,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 169.0) internal successors, (845), 5 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:48:58,553 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 169.0) internal successors, (845), 5 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:48:58,553 INFO L185 Difference]: Start difference. First operand has 31 places, 23 transitions, 124 flow. Second operand 4 states and 384 transitions. [2021-04-29 00:48:58,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 25 transitions, 142 flow [2021-04-29 00:48:58,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 25 transitions, 110 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-04-29 00:48:58,557 INFO L241 Difference]: Finished difference. Result has 31 places, 25 transitions, 113 flow [2021-04-29 00:48:58,557 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=113, PETRI_PLACES=31, PETRI_TRANSITIONS=25} [2021-04-29 00:48:58,557 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -42 predicate places. [2021-04-29 00:48:58,557 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:48:58,558 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 25 transitions, 113 flow [2021-04-29 00:48:58,558 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 25 transitions, 113 flow [2021-04-29 00:48:58,559 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 25 transitions, 113 flow [2021-04-29 00:48:58,568 INFO L129 PetriNetUnfolder]: 19/92 cut-off events. [2021-04-29 00:48:58,569 INFO L130 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2021-04-29 00:48:58,569 INFO L84 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 92 events. 19/92 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 457 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 214. Up to 55 conditions per place. [2021-04-29 00:48:58,571 INFO L146 LiptonReduction]: Number of co-enabled transitions 90 [2021-04-29 00:48:58,613 INFO L158 LiptonReduction]: Checked pairs total: 39 [2021-04-29 00:48:58,614 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-29 00:48:58,614 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-04-29 00:48:58,616 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 121 flow [2021-04-29 00:48:58,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:48:58,617 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:48:58,617 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:48:58,617 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:48:58,617 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:48:58,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:48:58,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1039400158, now seen corresponding path program 1 times [2021-04-29 00:48:58,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:48:58,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025001468] [2021-04-29 00:48:58,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:48:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:48:58,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:48:58,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:48:58,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:48:58,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:48:58,672 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-29 00:48:58,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:48:58,680 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 00:48:58,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025001468] [2021-04-29 00:48:58,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:48:58,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:48:58,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395465921] [2021-04-29 00:48:58,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:48:58,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:48:58,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:48:58,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:48:58,685 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 170 [2021-04-29 00:48:58,686 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 121 flow. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:48:58,686 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:48:58,686 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 170 [2021-04-29 00:48:58,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:48:58,729 INFO L129 PetriNetUnfolder]: 20/95 cut-off events. [2021-04-29 00:48:58,730 INFO L130 PetriNetUnfolder]: For 58/60 co-relation queries the response was YES. [2021-04-29 00:48:58,730 INFO L84 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 95 events. 20/95 cut-off events. For 58/60 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 520 event pairs, 0 based on Foata normal form. 11/62 useless extension candidates. Maximal degree in co-relation 241. Up to 55 conditions per place. [2021-04-29 00:48:58,731 INFO L132 encePairwiseOnDemand]: 165/170 looper letters, 0 selfloop transitions, 0 changer transitions 27/27 dead transitions. [2021-04-29 00:48:58,731 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 27 transitions, 146 flow [2021-04-29 00:48:58,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:48:58,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:48:58,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 384 transitions. [2021-04-29 00:48:58,734 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5647058823529412 [2021-04-29 00:48:58,734 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 384 transitions. [2021-04-29 00:48:58,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 384 transitions. [2021-04-29 00:48:58,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:48:58,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 384 transitions. [2021-04-29 00:48:58,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:48:58,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:48:58,739 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:48:58,740 INFO L185 Difference]: Start difference. First operand has 32 places, 26 transitions, 121 flow. Second operand 4 states and 384 transitions. [2021-04-29 00:48:58,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 27 transitions, 146 flow [2021-04-29 00:48:58,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 27 transitions, 135 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-04-29 00:48:58,742 INFO L241 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2021-04-29 00:48:58,743 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2021-04-29 00:48:58,743 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -41 predicate places. [2021-04-29 00:48:58,743 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:48:58,743 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 0 transitions, 0 flow [2021-04-29 00:48:58,744 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 0 transitions, 0 flow [2021-04-29 00:48:58,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:48:58,744 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:48:58,744 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:48:58,744 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 00:48:58,745 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:48:58,745 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:48:58,745 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:48:58,745 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:48:58,747 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:48:58,748 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:48:58,748 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:48:58,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:48:58 BasicIcfg [2021-04-29 00:48:58,753 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:48:58,755 INFO L168 Benchmark]: Toolchain (without parser) took 17085.19 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 277.3 MB in the beginning and 328.5 MB in the end (delta: -51.2 MB). Peak memory consumption was 87.3 MB. Max. memory is 16.0 GB. [2021-04-29 00:48:58,755 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 302.0 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:48:58,756 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.72 ms. Allocated memory is still 302.0 MB. Free memory was 274.1 MB in the beginning and 283.5 MB in the end (delta: -9.4 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.0 GB. [2021-04-29 00:48:58,757 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.54 ms. Allocated memory is still 302.0 MB. Free memory was 283.5 MB in the beginning and 281.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-04-29 00:48:58,757 INFO L168 Benchmark]: Boogie Preprocessor took 30.52 ms. Allocated memory is still 302.0 MB. Free memory was 281.4 MB in the beginning and 280.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:48:58,758 INFO L168 Benchmark]: RCFGBuilder took 509.47 ms. Allocated memory is still 302.0 MB. Free memory was 280.3 MB in the beginning and 257.3 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:48:58,759 INFO L168 Benchmark]: TraceAbstraction took 15745.21 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 257.3 MB in the beginning and 328.5 MB in the end (delta: -71.2 MB). Peak memory consumption was 65.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:48:58,763 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 302.0 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 668.72 ms. Allocated memory is still 302.0 MB. Free memory was 274.1 MB in the beginning and 283.5 MB in the end (delta: -9.4 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 72.54 ms. Allocated memory is still 302.0 MB. Free memory was 283.5 MB in the beginning and 281.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.52 ms. Allocated memory is still 302.0 MB. Free memory was 281.4 MB in the beginning and 280.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 509.47 ms. Allocated memory is still 302.0 MB. Free memory was 280.3 MB in the beginning and 257.3 MB in the end (delta: 23.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 15745.21 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 257.3 MB in the beginning and 328.5 MB in the end (delta: -71.2 MB). Peak memory consumption was 65.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13796.2ms, 55 PlacesBefore, 73 PlacesAfterwards, 49 TransitionsBefore, 66 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 8 FixpointIterations, 69 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 108 TotalNumberOfCompositions, 4286 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1594, positive: 1406, positive conditional: 1406, positive unconditional: 0, negative: 188, negative conditional: 188, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 611, positive: 567, positive conditional: 0, positive unconditional: 567, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 611, positive: 567, positive conditional: 0, positive unconditional: 567, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 611, positive: 553, positive conditional: 0, positive unconditional: 553, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 58, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 353, positive: 91, positive conditional: 0, positive unconditional: 91, negative: 262, negative conditional: 0, negative unconditional: 262, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1594, positive: 839, positive conditional: 839, positive unconditional: 0, negative: 144, negative conditional: 144, negative unconditional: 0, unknown: 611, unknown conditional: 611, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 607, Positive cache size: 563, Positive conditional cache size: 563, Positive unconditional cache size: 0, Negative cache size: 44, Negative conditional cache size: 44, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.8ms, 78 PlacesBefore, 29 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 138 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 160 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 49, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14, positive: 12, positive conditional: 2, positive unconditional: 10, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 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: 49, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 621, Positive cache size: 575, Positive conditional cache size: 575, Positive unconditional cache size: 0, Negative cache size: 46, Negative conditional cache size: 46, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.3ms, 35 PlacesBefore, 31 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 112 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 41, positive: 25, positive conditional: 25, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 41, positive: 17, positive conditional: 17, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 629, Positive cache size: 583, Positive conditional cache size: 583, Positive unconditional cache size: 0, Negative cache size: 46, Negative conditional cache size: 46, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 55.6ms, 31 PlacesBefore, 32 PlacesAfterwards, 25 TransitionsBefore, 26 TransitionsAfterwards, 90 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 39 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 23, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 6, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 6, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 23, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 641, Positive cache size: 593, Positive conditional cache size: 593, Positive unconditional cache size: 0, Negative cache size: 48, Negative conditional cache size: 48, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5ms, 32 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 641, Positive cache size: 593, Positive conditional cache size: 593, Positive unconditional cache size: 0, Negative cache size: 48, Negative conditional cache size: 48, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 15559.3ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 696.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13965.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 37 SDtfs, 17 SDslu, 30 SDs, 0 SdLazy, 115 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 167.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 101.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.3ms SsaConstructionTime, 157.0ms SatisfiabilityAnalysisTime, 365.8ms InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 137 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...