/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_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:48:52,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:48:52,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:48:52,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:48:52,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:48:52,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:48:52,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:48:52,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:48:52,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:48:52,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:48:52,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:48:52,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:48:52,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:48:52,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:48:52,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:48:52,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:48:52,538 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:48:52,555 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:48:52,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:48:52,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:48:52,558 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 00:48:52,614 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:48:52,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:48:52,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:48:52,620 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:48:52,620 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:48:52,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:48:52,620 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:48:52,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:48:52,621 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:48:52,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:48:52,623 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:48:52,623 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:48:52,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:48:52,623 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:48:52,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:48:52,624 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:48:52,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:48:52,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:48:52,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:48:52,625 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:48:52,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:48:52,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:48:52,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:48:52,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:48:52,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:48:52,626 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:48:52,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:48:52,627 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:48:52,627 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:48:52,627 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:48:52,627 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:48:53,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:48:53,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:48:53,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:48:53,081 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:48:53,082 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:48:53,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_tso.opt.i [2021-04-29 00:48:53,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a20195d36/9e4fee372bd74c998fe5601593ad6f14/FLAG1ed7b1d80 [2021-04-29 00:48:53,932 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:48:53,933 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_tso.opt.i [2021-04-29 00:48:53,954 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a20195d36/9e4fee372bd74c998fe5601593ad6f14/FLAG1ed7b1d80 [2021-04-29 00:48:54,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a20195d36/9e4fee372bd74c998fe5601593ad6f14 [2021-04-29 00:48:54,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:48:54,234 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:48:54,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:48:54,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:48:54,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:48:54,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:48:54" (1/1) ... [2021-04-29 00:48:54,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@508e3ad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:54, skipping insertion in model container [2021-04-29 00:48:54,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:48:54" (1/1) ... [2021-04-29 00:48:54,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:48:54,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:48:54,496 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_tso.opt.i[949,962] [2021-04-29 00:48:54,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:48:54,724 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:48:54,745 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_tso.opt.i[949,962] [2021-04-29 00:48:54,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:48:55,013 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:48:55,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:55 WrapperNode [2021-04-29 00:48:55,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:48:55,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:48:55,015 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:48:55,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:48:55,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:55" (1/1) ... [2021-04-29 00:48:55,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:55" (1/1) ... [2021-04-29 00:48:55,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:48:55,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:48:55,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:48:55,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:48:55,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:55" (1/1) ... [2021-04-29 00:48:55,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:55" (1/1) ... [2021-04-29 00:48:55,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:55" (1/1) ... [2021-04-29 00:48:55,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:55" (1/1) ... [2021-04-29 00:48:55,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:55" (1/1) ... [2021-04-29 00:48:55,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:55" (1/1) ... [2021-04-29 00:48:55,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:55" (1/1) ... [2021-04-29 00:48:55,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:48:55,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:48:55,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:48:55,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:48:55,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:55" (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 00:48:55,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:48:55,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:48:55,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:48:55,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:48:55,199 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:48:55,199 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:48:55,200 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:48:55,200 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:48:55,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:48:55,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:48:55,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:48:55,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:48:55,203 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 00:48:55,750 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:48:55,751 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:48:55,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:48:55 BoogieIcfgContainer [2021-04-29 00:48:55,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:48:55,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:48:55,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:48:55,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:48:55,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:48:54" (1/3) ... [2021-04-29 00:48:55,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69820e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:48:55, skipping insertion in model container [2021-04-29 00:48:55,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:48:55" (2/3) ... [2021-04-29 00:48:55,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69820e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:48:55, skipping insertion in model container [2021-04-29 00:48:55,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:48:55" (3/3) ... [2021-04-29 00:48:55,764 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_tso.opt.i [2021-04-29 00:48:55,771 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:48:55,776 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:48:55,777 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:48:55,824 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,825 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,825 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,825 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,825 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,826 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,826 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,826 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,826 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,827 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,827 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,827 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,828 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,828 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,828 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,828 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,828 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,829 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,829 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,829 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,829 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,830 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,830 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,830 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,832 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,833 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,833 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,833 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,839 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,840 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,840 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,840 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:48:55,843 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:48:55,868 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-29 00:48:55,894 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:48:55,895 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:48:55,895 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:48:55,895 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:48:55,895 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:48:55,895 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:48:55,895 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:48:55,896 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:48:55,910 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 132 flow [2021-04-29 00:48:55,952 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2021-04-29 00:48:55,952 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:48:55,957 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 00:48:55,957 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 61 transitions, 132 flow [2021-04-29 00:48:55,963 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 49 transitions, 104 flow [2021-04-29 00:48:55,965 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:48:55,990 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 49 transitions, 104 flow [2021-04-29 00:48:55,994 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 49 transitions, 104 flow [2021-04-29 00:48:55,996 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 49 transitions, 104 flow [2021-04-29 00:48:56,017 INFO L129 PetriNetUnfolder]: 1/49 cut-off events. [2021-04-29 00:48:56,018 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:48:56,022 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 00:48:56,027 INFO L146 LiptonReduction]: Number of co-enabled transitions 456 [2021-04-29 00:49:02,507 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:49:02,713 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:49:02,954 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:49:03,180 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:49:03,445 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:49:03,697 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:49:03,965 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:49:04,197 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:49:04,444 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:49:04,716 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:49:06,743 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:49:07,068 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:49:07,347 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:49:07,646 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:49:07,891 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:49:08,106 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:49:08,343 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:49:08,597 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:49:09,268 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-29 00:49:09,461 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-29 00:49:09,768 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 00:49:09,975 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 00:49:10,295 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:49:10,406 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 00:49:10,653 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:49:10,962 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:49:11,274 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:49:11,574 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:49:11,845 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:49:12,090 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:49:12,321 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:49:12,569 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:49:12,823 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:49:13,062 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:49:13,258 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:49:13,694 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-04-29 00:49:13,850 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-29 00:49:14,212 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-04-29 00:49:14,366 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-29 00:49:14,618 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:49:14,725 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 00:49:14,975 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:49:15,091 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 00:49:15,343 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:49:15,458 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 00:49:15,706 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:49:15,825 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-29 00:49:16,145 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-04-29 00:49:16,292 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-29 00:49:16,644 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-04-29 00:49:16,790 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-29 00:49:16,986 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:49:17,249 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:49:17,361 INFO L158 LiptonReduction]: Checked pairs total: 4286 [2021-04-29 00:49:17,361 INFO L160 LiptonReduction]: Total number of compositions: 108 [2021-04-29 00:49:17,365 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21402 [2021-04-29 00:49:17,386 INFO L129 PetriNetUnfolder]: 0/58 cut-off events. [2021-04-29 00:49:17,386 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:49:17,387 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:49:17,388 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-29 00:49:17,388 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:49:17,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:49:17,394 INFO L82 PathProgramCache]: Analyzing trace with hash -434415720, now seen corresponding path program 1 times [2021-04-29 00:49:17,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:49:17,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665741562] [2021-04-29 00:49:17,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:49:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:49:17,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:49:17,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:49:17,816 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:49:17,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:49:17,844 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 00:49:17,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665741562] [2021-04-29 00:49:17,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:49:17,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:49:17,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218593103] [2021-04-29 00:49:17,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:49:17,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:49:17,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:49:17,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:49:17,881 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 169 [2021-04-29 00:49:17,886 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 00:49:17,887 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:49:17,887 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 169 [2021-04-29 00:49:17,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:49:18,259 INFO L129 PetriNetUnfolder]: 408/849 cut-off events. [2021-04-29 00:49:18,259 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:49:18,261 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 00:49:18,265 INFO L132 encePairwiseOnDemand]: 134/169 looper letters, 8 selfloop transitions, 7 changer transitions 68/93 dead transitions. [2021-04-29 00:49:18,265 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 93 transitions, 324 flow [2021-04-29 00:49:18,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:49:18,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:49:18,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 546 transitions. [2021-04-29 00:49:18,286 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6461538461538462 [2021-04-29 00:49:18,287 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 546 transitions. [2021-04-29 00:49:18,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 546 transitions. [2021-04-29 00:49:18,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:49:18,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 546 transitions. [2021-04-29 00:49:18,298 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 00:49:18,309 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 00:49:18,310 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 00:49:18,313 INFO L185 Difference]: Start difference. First operand has 73 places, 66 transitions, 138 flow. Second operand 5 states and 546 transitions. [2021-04-29 00:49:18,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 93 transitions, 324 flow [2021-04-29 00:49:18,317 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 00:49:18,320 INFO L241 Difference]: Finished difference. Result has 78 places, 25 transitions, 105 flow [2021-04-29 00:49:18,323 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 00:49:18,324 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, 5 predicate places. [2021-04-29 00:49:18,324 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:49:18,324 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 25 transitions, 105 flow [2021-04-29 00:49:18,325 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 25 transitions, 105 flow [2021-04-29 00:49:18,325 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 25 transitions, 105 flow [2021-04-29 00:49:18,337 INFO L129 PetriNetUnfolder]: 45/101 cut-off events. [2021-04-29 00:49:18,337 INFO L130 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2021-04-29 00:49:18,337 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 00:49:18,339 INFO L146 LiptonReduction]: Number of co-enabled transitions 138 [2021-04-29 00:49:18,357 INFO L158 LiptonReduction]: Checked pairs total: 160 [2021-04-29 00:49:18,357 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:49:18,357 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-04-29 00:49:18,359 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 25 transitions, 105 flow [2021-04-29 00:49:18,360 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 00:49:18,360 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:49:18,360 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:49:18,360 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:49:18,360 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:49:18,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:49:18,361 INFO L82 PathProgramCache]: Analyzing trace with hash -62563635, now seen corresponding path program 1 times [2021-04-29 00:49:18,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:49:18,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589033585] [2021-04-29 00:49:18,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:49:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:49:18,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:49:18,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:49:18,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:49:18,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:49:18,513 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:49:18,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:49:18,530 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 00:49:18,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589033585] [2021-04-29 00:49:18,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:49:18,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:49:18,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807288996] [2021-04-29 00:49:18,533 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:49:18,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:49:18,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:49:18,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:49:18,537 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 169 [2021-04-29 00:49:18,538 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 00:49:18,539 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:49:18,539 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 169 [2021-04-29 00:49:18,539 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:49:18,654 INFO L129 PetriNetUnfolder]: 18/77 cut-off events. [2021-04-29 00:49:18,655 INFO L130 PetriNetUnfolder]: For 44/56 co-relation queries the response was YES. [2021-04-29 00:49:18,655 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 00:49:18,656 INFO L132 encePairwiseOnDemand]: 160/169 looper letters, 2 selfloop transitions, 13 changer transitions 9/32 dead transitions. [2021-04-29 00:49:18,656 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 32 transitions, 189 flow [2021-04-29 00:49:18,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 00:49:18,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 00:49:18,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 588 transitions. [2021-04-29 00:49:18,661 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5798816568047337 [2021-04-29 00:49:18,661 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 588 transitions. [2021-04-29 00:49:18,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 588 transitions. [2021-04-29 00:49:18,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:49:18,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 588 transitions. [2021-04-29 00:49:18,664 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 00:49:18,669 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 00:49:18,670 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 00:49:18,670 INFO L185 Difference]: Start difference. First operand has 29 places, 25 transitions, 105 flow. Second operand 6 states and 588 transitions. [2021-04-29 00:49:18,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 32 transitions, 189 flow [2021-04-29 00:49:18,673 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 00:49:18,674 INFO L241 Difference]: Finished difference. Result has 35 places, 23 transitions, 124 flow [2021-04-29 00:49:18,674 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 00:49:18,675 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -38 predicate places. [2021-04-29 00:49:18,675 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:49:18,675 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 23 transitions, 124 flow [2021-04-29 00:49:18,676 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 23 transitions, 124 flow [2021-04-29 00:49:18,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 23 transitions, 124 flow [2021-04-29 00:49:18,683 INFO L129 PetriNetUnfolder]: 9/51 cut-off events. [2021-04-29 00:49:18,684 INFO L130 PetriNetUnfolder]: For 36/42 co-relation queries the response was YES. [2021-04-29 00:49:18,684 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 00:49:18,685 INFO L146 LiptonReduction]: Number of co-enabled transitions 84 [2021-04-29 00:49:18,688 INFO L158 LiptonReduction]: Checked pairs total: 112 [2021-04-29 00:49:18,688 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:49:18,688 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-04-29 00:49:18,690 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 23 transitions, 124 flow [2021-04-29 00:49:18,690 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 00:49:18,691 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:49:18,691 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:49:18,691 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:49:18,691 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:49:18,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:49:18,692 INFO L82 PathProgramCache]: Analyzing trace with hash -33914205, now seen corresponding path program 1 times [2021-04-29 00:49:18,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:49:18,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497787598] [2021-04-29 00:49:18,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:49:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:49:18,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:49:18,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:49:18,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:49:18,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:49:18,792 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-29 00:49:18,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:49:18,812 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 00:49:18,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497787598] [2021-04-29 00:49:18,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:49:18,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:49:18,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97144374] [2021-04-29 00:49:18,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:49:18,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:49:18,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:49:18,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:49:18,820 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 169 [2021-04-29 00:49:18,821 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 00:49:18,821 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:49:18,821 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 169 [2021-04-29 00:49:18,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:49:18,869 INFO L129 PetriNetUnfolder]: 19/92 cut-off events. [2021-04-29 00:49:18,869 INFO L130 PetriNetUnfolder]: For 129/141 co-relation queries the response was YES. [2021-04-29 00:49:18,872 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 00:49:18,873 INFO L132 encePairwiseOnDemand]: 165/169 looper letters, 4 selfloop transitions, 3 changer transitions 0/25 dead transitions. [2021-04-29 00:49:18,873 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 25 transitions, 142 flow [2021-04-29 00:49:18,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:49:18,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:49:18,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 384 transitions. [2021-04-29 00:49:18,876 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5680473372781065 [2021-04-29 00:49:18,876 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 384 transitions. [2021-04-29 00:49:18,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 384 transitions. [2021-04-29 00:49:18,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:49:18,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 384 transitions. [2021-04-29 00:49:18,878 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 00:49:18,880 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 00:49:18,881 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 00:49:18,881 INFO L185 Difference]: Start difference. First operand has 31 places, 23 transitions, 124 flow. Second operand 4 states and 384 transitions. [2021-04-29 00:49:18,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 25 transitions, 142 flow [2021-04-29 00:49:18,885 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 00:49:18,886 INFO L241 Difference]: Finished difference. Result has 31 places, 25 transitions, 113 flow [2021-04-29 00:49:18,886 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 00:49:18,886 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -42 predicate places. [2021-04-29 00:49:18,886 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:49:18,887 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 25 transitions, 113 flow [2021-04-29 00:49:18,888 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 25 transitions, 113 flow [2021-04-29 00:49:18,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 25 transitions, 113 flow [2021-04-29 00:49:18,899 INFO L129 PetriNetUnfolder]: 19/92 cut-off events. [2021-04-29 00:49:18,899 INFO L130 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2021-04-29 00:49:18,900 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 00:49:18,901 INFO L146 LiptonReduction]: Number of co-enabled transitions 90 [2021-04-29 00:49:18,975 INFO L158 LiptonReduction]: Checked pairs total: 39 [2021-04-29 00:49:18,975 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-29 00:49:18,976 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 90 [2021-04-29 00:49:18,977 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 121 flow [2021-04-29 00:49:18,978 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 00:49:18,978 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:49:18,978 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:49:18,978 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:49:18,978 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:49:18,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:49:18,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1039400158, now seen corresponding path program 1 times [2021-04-29 00:49:18,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:49:18,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873942756] [2021-04-29 00:49:18,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:49:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:49:19,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:49:19,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:49:19,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:49:19,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:49:19,032 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-29 00:49:19,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:49:19,045 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 00:49:19,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873942756] [2021-04-29 00:49:19,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:49:19,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:49:19,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216672465] [2021-04-29 00:49:19,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:49:19,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:49:19,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:49:19,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:49:19,049 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 170 [2021-04-29 00:49:19,050 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 00:49:19,050 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:49:19,050 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 170 [2021-04-29 00:49:19,050 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:49:19,093 INFO L129 PetriNetUnfolder]: 20/95 cut-off events. [2021-04-29 00:49:19,093 INFO L130 PetriNetUnfolder]: For 58/60 co-relation queries the response was YES. [2021-04-29 00:49:19,094 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 00:49:19,094 INFO L132 encePairwiseOnDemand]: 165/170 looper letters, 0 selfloop transitions, 0 changer transitions 27/27 dead transitions. [2021-04-29 00:49:19,094 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 27 transitions, 146 flow [2021-04-29 00:49:19,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:49:19,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:49:19,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 384 transitions. [2021-04-29 00:49:19,097 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5647058823529412 [2021-04-29 00:49:19,097 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 384 transitions. [2021-04-29 00:49:19,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 384 transitions. [2021-04-29 00:49:19,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:49:19,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 384 transitions. [2021-04-29 00:49:19,099 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 00:49:19,101 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 00:49:19,102 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 00:49:19,102 INFO L185 Difference]: Start difference. First operand has 32 places, 26 transitions, 121 flow. Second operand 4 states and 384 transitions. [2021-04-29 00:49:19,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 27 transitions, 146 flow [2021-04-29 00:49:19,104 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 00:49:19,105 INFO L241 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2021-04-29 00:49:19,105 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 00:49:19,105 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -41 predicate places. [2021-04-29 00:49:19,105 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:49:19,105 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 0 transitions, 0 flow [2021-04-29 00:49:19,106 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 0 transitions, 0 flow [2021-04-29 00:49:19,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:49:19,106 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:49:19,106 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:49:19,107 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 00:49:19,107 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:49:19,107 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:49:19,107 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:49:19,107 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:49:19,108 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:49:19,109 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 00:49:19,109 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:49:19,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:49:19 BasicIcfg [2021-04-29 00:49:19,114 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:49:19,116 INFO L168 Benchmark]: Toolchain (without parser) took 24923.08 ms. Allocated memory was 320.9 MB in the beginning and 463.5 MB in the end (delta: 142.6 MB). Free memory was 293.9 MB in the beginning and 177.0 MB in the end (delta: 116.9 MB). Peak memory consumption was 262.4 MB. Max. memory is 16.0 GB. [2021-04-29 00:49:19,116 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 320.9 MB. Free memory is still 289.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:49:19,117 INFO L168 Benchmark]: CACSL2BoogieTranslator took 776.96 ms. Allocated memory is still 320.9 MB. Free memory was 290.9 MB in the beginning and 292.3 MB in the end (delta: -1.4 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.0 GB. [2021-04-29 00:49:19,118 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.54 ms. Allocated memory is still 320.9 MB. Free memory was 292.3 MB in the beginning and 291.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:49:19,118 INFO L168 Benchmark]: Boogie Preprocessor took 30.50 ms. Allocated memory is still 320.9 MB. Free memory was 291.3 MB in the beginning and 289.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:49:19,119 INFO L168 Benchmark]: RCFGBuilder took 657.53 ms. Allocated memory is still 320.9 MB. Free memory was 289.2 MB in the beginning and 268.2 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-04-29 00:49:19,120 INFO L168 Benchmark]: TraceAbstraction took 23358.80 ms. Allocated memory was 320.9 MB in the beginning and 463.5 MB in the end (delta: 142.6 MB). Free memory was 268.2 MB in the beginning and 177.0 MB in the end (delta: 91.2 MB). Peak memory consumption was 235.9 MB. Max. memory is 16.0 GB. [2021-04-29 00:49:19,123 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 320.9 MB. Free memory is still 289.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 776.96 ms. Allocated memory is still 320.9 MB. Free memory was 290.9 MB in the beginning and 292.3 MB in the end (delta: -1.4 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.54 ms. Allocated memory is still 320.9 MB. Free memory was 292.3 MB in the beginning and 291.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.50 ms. Allocated memory is still 320.9 MB. Free memory was 291.3 MB in the beginning and 289.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 657.53 ms. Allocated memory is still 320.9 MB. Free memory was 289.2 MB in the beginning and 268.2 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 23358.80 ms. Allocated memory was 320.9 MB in the beginning and 463.5 MB in the end (delta: 142.6 MB). Free memory was 268.2 MB in the beginning and 177.0 MB in the end (delta: 91.2 MB). Peak memory consumption was 235.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21367.0ms, 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: 436, positive: 109, positive conditional: 0, positive unconditional: 109, negative: 327, negative conditional: 0, negative unconditional: 327, 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: 32.4ms, 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: 13, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 13, negative conditional: 0, negative unconditional: 13, 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: 12.5ms, 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: 87.4ms, 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: 14, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 14, negative conditional: 0, negative unconditional: 14, 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: 1.3ms, 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: 12.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 23220.7ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 720.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 21477.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 37 SDtfs, 17 SDslu, 30 SDs, 0 SdLazy, 115 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 256.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 153.6ms 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: 21.0ms SsaConstructionTime, 183.0ms SatisfiabilityAnalysisTime, 477.5ms 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...