/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/safe007_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:36:55,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:36:55,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:36:55,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 00:36:55,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 00:36:55,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 00:36:55,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 00:36:55,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 00:36:55,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 00:36:55,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 00:36:55,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 00:36:55,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 00:36:55,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:36:55,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:36:55,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:36:55,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:36:55,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:36:55,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:36:55,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:36:55,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:36:55,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:36:55,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:36:55,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:36:55,632 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:36:55,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:36:55,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:36:55,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:36:55,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:36:55,639 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 [2021-03-26 00:36:55,663 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:36:55,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:36:55,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:36:55,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:36:55,667 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:36:55,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:36:55,668 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:36:55,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:36:55,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:36:55,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:36:55,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:36:55,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:36:55,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:36:55,669 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:36:55,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:36:55,669 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:36:55,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:36:55,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:36:55,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:36:55,669 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:36:55,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:36:55,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:36:55,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:36:55,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:36:55,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:36:55,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:36:55,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:36:55,670 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:36:55,670 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:36:55,670 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:36:55,670 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:36:55,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:36:55,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:36:55,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:36:55,917 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:36:55,918 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:36:55,918 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2021-03-26 00:36:55,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af6a5b9bb/63effe8279e54caf83c1a44b863b0375/FLAG270bd3b80 [2021-03-26 00:36:56,386 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:36:56,387 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2021-03-26 00:36:56,398 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af6a5b9bb/63effe8279e54caf83c1a44b863b0375/FLAG270bd3b80 [2021-03-26 00:36:56,756 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af6a5b9bb/63effe8279e54caf83c1a44b863b0375 [2021-03-26 00:36:56,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:36:56,763 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:36:56,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:36:56,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:36:56,768 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:36:56,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:36:56" (1/1) ... [2021-03-26 00:36:56,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5948cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:36:56, skipping insertion in model container [2021-03-26 00:36:56,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:36:56" (1/1) ... [2021-03-26 00:36:56,775 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:36:56,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:36:56,907 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i[949,962] [2021-03-26 00:36:57,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:36:57,058 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:36:57,067 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/safe007_pso.opt.i[949,962] [2021-03-26 00:36:57,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:36:57,152 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:36:57,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:36:57 WrapperNode [2021-03-26 00:36:57,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:36:57,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:36:57,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:36:57,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:36:57,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:36:57" (1/1) ... [2021-03-26 00:36:57,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:36:57" (1/1) ... [2021-03-26 00:36:57,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:36:57,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:36:57,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:36:57,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:36:57,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:36:57" (1/1) ... [2021-03-26 00:36:57,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:36:57" (1/1) ... [2021-03-26 00:36:57,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:36:57" (1/1) ... [2021-03-26 00:36:57,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:36:57" (1/1) ... [2021-03-26 00:36:57,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:36:57" (1/1) ... [2021-03-26 00:36:57,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:36:57" (1/1) ... [2021-03-26 00:36:57,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:36:57" (1/1) ... [2021-03-26 00:36:57,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:36:57,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:36:57,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:36:57,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:36:57,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:36:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:36:57,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:36:57,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:36:57,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:36:57,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:36:57,254 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:36:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:36:57,254 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:36:57,255 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:36:57,255 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 00:36:57,255 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 00:36:57,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:36:57,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:36:57,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:36:57,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:36:57,256 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 00:36:57,525 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:36:57,525 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 00:36:57,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:36:57 BoogieIcfgContainer [2021-03-26 00:36:57,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:36:57,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:36:57,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:36:57,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:36:57,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:36:56" (1/3) ... [2021-03-26 00:36:57,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72efa43f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:36:57, skipping insertion in model container [2021-03-26 00:36:57,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:36:57" (2/3) ... [2021-03-26 00:36:57,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72efa43f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:36:57, skipping insertion in model container [2021-03-26 00:36:57,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:36:57" (3/3) ... [2021-03-26 00:36:57,531 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_pso.opt.i [2021-03-26 00:36:57,534 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:36:57,537 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 00:36:57,538 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:36:57,565 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,566 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,566 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,566 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,566 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,566 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,566 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,566 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,567 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,567 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,567 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,567 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,568 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,568 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,568 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,568 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,568 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,569 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,571 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,571 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,571 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,571 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,571 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,572 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,574 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,574 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,574 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,575 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,575 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,575 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,576 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,577 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,577 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,577 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,583 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,583 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,583 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,584 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,585 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,586 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,586 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,586 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:36:57,587 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:36:57,599 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 00:36:57,621 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:36:57,621 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:36:57,621 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:36:57,621 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:36:57,621 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:36:57,622 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:36:57,622 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:36:57,622 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:36:57,631 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2021-03-26 00:36:57,675 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2021-03-26 00:36:57,675 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:36:57,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-26 00:36:57,681 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 76 transitions, 167 flow [2021-03-26 00:36:57,688 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 61 transitions, 131 flow [2021-03-26 00:36:57,689 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:36:57,697 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 61 transitions, 131 flow [2021-03-26 00:36:57,699 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 61 transitions, 131 flow [2021-03-26 00:36:57,700 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 61 transitions, 131 flow [2021-03-26 00:36:57,716 INFO L129 PetriNetUnfolder]: 1/61 cut-off events. [2021-03-26 00:36:57,716 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:36:57,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 61 events. 1/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-26 00:36:57,719 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-26 00:36:59,330 INFO L154 LiptonReduction]: Checked pairs total: 942 [2021-03-26 00:36:59,330 INFO L156 LiptonReduction]: Total number of compositions: 40 [2021-03-26 00:36:59,332 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1643 [2021-03-26 00:36:59,338 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-03-26 00:36:59,338 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:36:59,339 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:36:59,339 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:36:59,339 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:36:59,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:36:59,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1196691833, now seen corresponding path program 1 times [2021-03-26 00:36:59,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:36:59,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217118531] [2021-03-26 00:36:59,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:36:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:36:59,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:36:59,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:36:59,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:36:59,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217118531] [2021-03-26 00:36:59,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:36:59,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 00:36:59,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846541443] [2021-03-26 00:36:59,491 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:36:59,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:36:59,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:36:59,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:36:59,504 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 116 [2021-03-26 00:36:59,508 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:36:59,508 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:36:59,508 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 116 [2021-03-26 00:36:59,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:36:59,520 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-26 00:36:59,520 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:36:59,520 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 21 events. 0/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 00:36:59,521 INFO L132 encePairwiseOnDemand]: 113/116 looper letters, 1 selfloop transitions, 2 changer transitions 0/21 dead transitions. [2021-03-26 00:36:59,521 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 21 transitions, 57 flow [2021-03-26 00:36:59,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:36:59,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:36:59,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 310 transitions. [2021-03-26 00:36:59,529 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8908045977011494 [2021-03-26 00:36:59,529 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 310 transitions. [2021-03-26 00:36:59,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 310 transitions. [2021-03-26 00:36:59,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:36:59,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 310 transitions. [2021-03-26 00:36:59,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:36:59,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:36:59,538 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:36:59,539 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 51 flow. Second operand 3 states and 310 transitions. [2021-03-26 00:36:59,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 21 transitions, 57 flow [2021-03-26 00:36:59,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 21 transitions, 54 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 00:36:59,542 INFO L241 Difference]: Finished difference. Result has 31 places, 21 transitions, 56 flow [2021-03-26 00:36:59,543 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=31, PETRI_TRANSITIONS=21} [2021-03-26 00:36:59,543 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 0 predicate places. [2021-03-26 00:36:59,543 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:36:59,543 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 21 transitions, 56 flow [2021-03-26 00:36:59,544 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 21 transitions, 56 flow [2021-03-26 00:36:59,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 21 transitions, 56 flow [2021-03-26 00:36:59,546 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-26 00:36:59,546 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:36:59,546 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 21 events. 0/21 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 00:36:59,547 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-26 00:37:00,034 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-03-26 00:37:00,214 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-03-26 00:37:00,277 INFO L154 LiptonReduction]: Checked pairs total: 437 [2021-03-26 00:37:00,278 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 00:37:00,278 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 735 [2021-03-26 00:37:00,279 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 17 transitions, 48 flow [2021-03-26 00:37:00,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,279 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:37:00,279 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:37:00,279 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:37:00,279 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:37:00,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:37:00,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1552337805, now seen corresponding path program 1 times [2021-03-26 00:37:00,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:37:00,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504740354] [2021-03-26 00:37:00,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:37:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:37:00,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:37:00,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:37:00,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:37:00,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:37:00,343 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 00:37:00,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:37:00,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:37:00,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504740354] [2021-03-26 00:37:00,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:37:00,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:37:00,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609662520] [2021-03-26 00:37:00,350 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:37:00,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:37:00,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:37:00,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:37:00,352 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 120 [2021-03-26 00:37:00,352 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,352 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:37:00,352 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 120 [2021-03-26 00:37:00,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:37:00,389 INFO L129 PetriNetUnfolder]: 14/62 cut-off events. [2021-03-26 00:37:00,389 INFO L130 PetriNetUnfolder]: For 12/18 co-relation queries the response was YES. [2021-03-26 00:37:00,391 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 62 events. 14/62 cut-off events. For 12/18 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 235 event pairs, 1 based on Foata normal form. 8/68 useless extension candidates. Maximal degree in co-relation 116. Up to 15 conditions per place. [2021-03-26 00:37:00,392 INFO L132 encePairwiseOnDemand]: 114/120 looper letters, 7 selfloop transitions, 7 changer transitions 0/25 dead transitions. [2021-03-26 00:37:00,392 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 25 transitions, 100 flow [2021-03-26 00:37:00,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:37:00,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:37:00,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 471 transitions. [2021-03-26 00:37:00,397 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.785 [2021-03-26 00:37:00,397 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 471 transitions. [2021-03-26 00:37:00,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 471 transitions. [2021-03-26 00:37:00,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:37:00,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 471 transitions. [2021-03-26 00:37:00,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.2) internal successors, (471), 5 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,401 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,401 INFO L185 Difference]: Start difference. First operand has 27 places, 17 transitions, 48 flow. Second operand 5 states and 471 transitions. [2021-03-26 00:37:00,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 25 transitions, 100 flow [2021-03-26 00:37:00,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 25 transitions, 92 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:37:00,402 INFO L241 Difference]: Finished difference. Result has 32 places, 22 transitions, 92 flow [2021-03-26 00:37:00,402 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=92, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2021-03-26 00:37:00,403 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 1 predicate places. [2021-03-26 00:37:00,403 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:37:00,403 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 22 transitions, 92 flow [2021-03-26 00:37:00,403 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 22 transitions, 92 flow [2021-03-26 00:37:00,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 22 transitions, 92 flow [2021-03-26 00:37:00,409 INFO L129 PetriNetUnfolder]: 8/56 cut-off events. [2021-03-26 00:37:00,409 INFO L130 PetriNetUnfolder]: For 23/26 co-relation queries the response was YES. [2021-03-26 00:37:00,410 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 56 events. 8/56 cut-off events. For 23/26 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 222 event pairs, 2 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 116. Up to 19 conditions per place. [2021-03-26 00:37:00,410 INFO L142 LiptonReduction]: Number of co-enabled transitions 162 [2021-03-26 00:37:00,421 INFO L154 LiptonReduction]: Checked pairs total: 119 [2021-03-26 00:37:00,421 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:37:00,421 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-26 00:37:00,422 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 92 flow [2021-03-26 00:37:00,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,422 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:37:00,423 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:37:00,423 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:37:00,423 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:37:00,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:37:00,423 INFO L82 PathProgramCache]: Analyzing trace with hash 355545513, now seen corresponding path program 1 times [2021-03-26 00:37:00,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:37:00,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258926049] [2021-03-26 00:37:00,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:37:00,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:37:00,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:37:00,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:37:00,474 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 00:37:00,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:37:00,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:37:00,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258926049] [2021-03-26 00:37:00,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:37:00,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:37:00,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349783440] [2021-03-26 00:37:00,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:37:00,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:37:00,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:37:00,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:37:00,481 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 120 [2021-03-26 00:37:00,481 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,481 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:37:00,482 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 120 [2021-03-26 00:37:00,482 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:37:00,509 INFO L129 PetriNetUnfolder]: 23/111 cut-off events. [2021-03-26 00:37:00,509 INFO L130 PetriNetUnfolder]: For 124/160 co-relation queries the response was YES. [2021-03-26 00:37:00,510 INFO L84 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 111 events. 23/111 cut-off events. For 124/160 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 534 event pairs, 0 based on Foata normal form. 8/116 useless extension candidates. Maximal degree in co-relation 281. Up to 36 conditions per place. [2021-03-26 00:37:00,510 INFO L132 encePairwiseOnDemand]: 114/120 looper letters, 11 selfloop transitions, 10 changer transitions 1/34 dead transitions. [2021-03-26 00:37:00,510 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 34 transitions, 201 flow [2021-03-26 00:37:00,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:37:00,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:37:00,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 471 transitions. [2021-03-26 00:37:00,515 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.785 [2021-03-26 00:37:00,515 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 471 transitions. [2021-03-26 00:37:00,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 471 transitions. [2021-03-26 00:37:00,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:37:00,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 471 transitions. [2021-03-26 00:37:00,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.2) internal successors, (471), 5 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,518 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,518 INFO L185 Difference]: Start difference. First operand has 32 places, 22 transitions, 92 flow. Second operand 5 states and 471 transitions. [2021-03-26 00:37:00,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 34 transitions, 201 flow [2021-03-26 00:37:00,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 34 transitions, 197 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 00:37:00,520 INFO L241 Difference]: Finished difference. Result has 38 places, 30 transitions, 184 flow [2021-03-26 00:37:00,520 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=184, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2021-03-26 00:37:00,520 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2021-03-26 00:37:00,521 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:37:00,521 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 30 transitions, 184 flow [2021-03-26 00:37:00,521 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 30 transitions, 184 flow [2021-03-26 00:37:00,522 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 30 transitions, 184 flow [2021-03-26 00:37:00,529 INFO L129 PetriNetUnfolder]: 12/80 cut-off events. [2021-03-26 00:37:00,529 INFO L130 PetriNetUnfolder]: For 105/135 co-relation queries the response was YES. [2021-03-26 00:37:00,529 INFO L84 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 80 events. 12/80 cut-off events. For 105/135 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 357 event pairs, 1 based on Foata normal form. 2/80 useless extension candidates. Maximal degree in co-relation 218. Up to 25 conditions per place. [2021-03-26 00:37:00,530 INFO L142 LiptonReduction]: Number of co-enabled transitions 200 [2021-03-26 00:37:00,539 INFO L154 LiptonReduction]: Checked pairs total: 166 [2021-03-26 00:37:00,539 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:37:00,539 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-26 00:37:00,540 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 184 flow [2021-03-26 00:37:00,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 92.0) internal successors, (368), 4 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,540 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:37:00,540 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:37:00,540 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:37:00,541 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:37:00,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:37:00,541 INFO L82 PathProgramCache]: Analyzing trace with hash 355535903, now seen corresponding path program 1 times [2021-03-26 00:37:00,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:37:00,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884821045] [2021-03-26 00:37:00,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:37:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:37:00,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:37:00,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:37:00,565 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 00:37:00,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:37:00,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:37:00,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884821045] [2021-03-26 00:37:00,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:37:00,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:37:00,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807652217] [2021-03-26 00:37:00,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:37:00,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:37:00,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:37:00,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:37:00,571 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 120 [2021-03-26 00:37:00,572 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 184 flow. Second operand has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,572 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:37:00,572 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 120 [2021-03-26 00:37:00,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:37:00,583 INFO L129 PetriNetUnfolder]: 14/82 cut-off events. [2021-03-26 00:37:00,583 INFO L130 PetriNetUnfolder]: For 183/275 co-relation queries the response was YES. [2021-03-26 00:37:00,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 82 events. 14/82 cut-off events. For 183/275 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 384 event pairs, 0 based on Foata normal form. 9/90 useless extension candidates. Maximal degree in co-relation 255. Up to 27 conditions per place. [2021-03-26 00:37:00,584 INFO L132 encePairwiseOnDemand]: 117/120 looper letters, 13 selfloop transitions, 6 changer transitions 1/34 dead transitions. [2021-03-26 00:37:00,584 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 34 transitions, 257 flow [2021-03-26 00:37:00,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:37:00,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:37:00,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2021-03-26 00:37:00,585 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8222222222222222 [2021-03-26 00:37:00,585 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2021-03-26 00:37:00,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2021-03-26 00:37:00,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:37:00,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2021-03-26 00:37:00,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,587 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,587 INFO L185 Difference]: Start difference. First operand has 38 places, 30 transitions, 184 flow. Second operand 3 states and 296 transitions. [2021-03-26 00:37:00,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 34 transitions, 257 flow [2021-03-26 00:37:00,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 34 transitions, 255 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-03-26 00:37:00,589 INFO L241 Difference]: Finished difference. Result has 41 places, 30 transitions, 202 flow [2021-03-26 00:37:00,589 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=41, PETRI_TRANSITIONS=30} [2021-03-26 00:37:00,589 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 10 predicate places. [2021-03-26 00:37:00,589 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:37:00,589 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 30 transitions, 202 flow [2021-03-26 00:37:00,590 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 30 transitions, 202 flow [2021-03-26 00:37:00,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 30 transitions, 202 flow [2021-03-26 00:37:00,594 INFO L129 PetriNetUnfolder]: 11/76 cut-off events. [2021-03-26 00:37:00,594 INFO L130 PetriNetUnfolder]: For 125/155 co-relation queries the response was YES. [2021-03-26 00:37:00,594 INFO L84 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 76 events. 11/76 cut-off events. For 125/155 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 352 event pairs, 0 based on Foata normal form. 2/76 useless extension candidates. Maximal degree in co-relation 222. Up to 21 conditions per place. [2021-03-26 00:37:00,595 INFO L142 LiptonReduction]: Number of co-enabled transitions 200 [2021-03-26 00:37:00,597 INFO L154 LiptonReduction]: Checked pairs total: 154 [2021-03-26 00:37:00,597 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:37:00,597 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-03-26 00:37:00,597 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 202 flow [2021-03-26 00:37:00,598 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,598 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:37:00,598 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:37:00,598 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:37:00,598 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:37:00,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:37:00,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1837160323, now seen corresponding path program 1 times [2021-03-26 00:37:00,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:37:00,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716877961] [2021-03-26 00:37:00,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:37:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:37:00,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:37:00,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:37:00,631 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 00:37:00,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:37:00,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:37:00,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716877961] [2021-03-26 00:37:00,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:37:00,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:37:00,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305216463] [2021-03-26 00:37:00,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:37:00,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:37:00,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:37:00,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:37:00,637 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 120 [2021-03-26 00:37:00,638 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,638 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:37:00,638 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 120 [2021-03-26 00:37:00,638 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:37:00,662 INFO L129 PetriNetUnfolder]: 25/124 cut-off events. [2021-03-26 00:37:00,662 INFO L130 PetriNetUnfolder]: For 409/523 co-relation queries the response was YES. [2021-03-26 00:37:00,663 INFO L84 FinitePrefix]: Finished finitePrefix Result has 437 conditions, 124 events. 25/124 cut-off events. For 409/523 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 670 event pairs, 0 based on Foata normal form. 24/146 useless extension candidates. Maximal degree in co-relation 417. Up to 33 conditions per place. [2021-03-26 00:37:00,663 INFO L132 encePairwiseOnDemand]: 114/120 looper letters, 16 selfloop transitions, 13 changer transitions 4/46 dead transitions. [2021-03-26 00:37:00,663 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 46 transitions, 407 flow [2021-03-26 00:37:00,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:37:00,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:37:00,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 471 transitions. [2021-03-26 00:37:00,665 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.785 [2021-03-26 00:37:00,665 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 471 transitions. [2021-03-26 00:37:00,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 471 transitions. [2021-03-26 00:37:00,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:37:00,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 471 transitions. [2021-03-26 00:37:00,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.2) internal successors, (471), 5 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,673 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,673 INFO L185 Difference]: Start difference. First operand has 41 places, 30 transitions, 202 flow. Second operand 5 states and 471 transitions. [2021-03-26 00:37:00,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 46 transitions, 407 flow [2021-03-26 00:37:00,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 46 transitions, 389 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:37:00,675 INFO L241 Difference]: Finished difference. Result has 46 places, 39 transitions, 324 flow [2021-03-26 00:37:00,676 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=324, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2021-03-26 00:37:00,676 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 15 predicate places. [2021-03-26 00:37:00,676 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:37:00,676 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 39 transitions, 324 flow [2021-03-26 00:37:00,676 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 39 transitions, 324 flow [2021-03-26 00:37:00,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 39 transitions, 324 flow [2021-03-26 00:37:00,682 INFO L129 PetriNetUnfolder]: 13/105 cut-off events. [2021-03-26 00:37:00,682 INFO L130 PetriNetUnfolder]: For 258/322 co-relation queries the response was YES. [2021-03-26 00:37:00,683 INFO L84 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 105 events. 13/105 cut-off events. For 258/322 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 579 event pairs, 0 based on Foata normal form. 7/110 useless extension candidates. Maximal degree in co-relation 349. Up to 28 conditions per place. [2021-03-26 00:37:00,683 INFO L142 LiptonReduction]: Number of co-enabled transitions 236 [2021-03-26 00:37:00,686 INFO L154 LiptonReduction]: Checked pairs total: 85 [2021-03-26 00:37:00,686 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:37:00,686 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-26 00:37:00,687 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 324 flow [2021-03-26 00:37:00,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,687 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:37:00,687 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:37:00,687 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:37:00,687 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:37:00,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:37:00,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1863617273, now seen corresponding path program 1 times [2021-03-26 00:37:00,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:37:00,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803248101] [2021-03-26 00:37:00,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:37:00,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:37:00,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:37:00,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:37:00,731 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 00:37:00,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:37:00,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:37:00,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803248101] [2021-03-26 00:37:00,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:37:00,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:37:00,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651506479] [2021-03-26 00:37:00,737 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:37:00,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:37:00,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:37:00,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:37:00,738 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 120 [2021-03-26 00:37:00,738 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 324 flow. Second operand has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,738 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:37:00,738 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 120 [2021-03-26 00:37:00,738 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:37:00,759 INFO L129 PetriNetUnfolder]: 14/101 cut-off events. [2021-03-26 00:37:00,760 INFO L130 PetriNetUnfolder]: For 357/488 co-relation queries the response was YES. [2021-03-26 00:37:00,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 101 events. 14/101 cut-off events. For 357/488 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 558 event pairs, 0 based on Foata normal form. 7/107 useless extension candidates. Maximal degree in co-relation 375. Up to 31 conditions per place. [2021-03-26 00:37:00,761 INFO L132 encePairwiseOnDemand]: 117/120 looper letters, 16 selfloop transitions, 8 changer transitions 3/42 dead transitions. [2021-03-26 00:37:00,761 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 42 transitions, 411 flow [2021-03-26 00:37:00,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:37:00,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:37:00,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2021-03-26 00:37:00,763 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8222222222222222 [2021-03-26 00:37:00,763 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2021-03-26 00:37:00,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2021-03-26 00:37:00,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:37:00,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2021-03-26 00:37:00,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,764 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,764 INFO L185 Difference]: Start difference. First operand has 46 places, 39 transitions, 324 flow. Second operand 3 states and 296 transitions. [2021-03-26 00:37:00,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 42 transitions, 411 flow [2021-03-26 00:37:00,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 42 transitions, 405 flow, removed 3 selfloop flow, removed 0 redundant places. [2021-03-26 00:37:00,768 INFO L241 Difference]: Finished difference. Result has 49 places, 38 transitions, 334 flow [2021-03-26 00:37:00,768 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=49, PETRI_TRANSITIONS=38} [2021-03-26 00:37:00,768 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 18 predicate places. [2021-03-26 00:37:00,768 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:37:00,768 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 38 transitions, 334 flow [2021-03-26 00:37:00,769 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 38 transitions, 334 flow [2021-03-26 00:37:00,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 38 transitions, 334 flow [2021-03-26 00:37:00,774 INFO L129 PetriNetUnfolder]: 13/91 cut-off events. [2021-03-26 00:37:00,774 INFO L130 PetriNetUnfolder]: For 290/356 co-relation queries the response was YES. [2021-03-26 00:37:00,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 361 conditions, 91 events. 13/91 cut-off events. For 290/356 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 485 event pairs, 0 based on Foata normal form. 4/93 useless extension candidates. Maximal degree in co-relation 337. Up to 25 conditions per place. [2021-03-26 00:37:00,776 INFO L142 LiptonReduction]: Number of co-enabled transitions 232 [2021-03-26 00:37:00,778 INFO L154 LiptonReduction]: Checked pairs total: 102 [2021-03-26 00:37:00,779 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:37:00,779 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-26 00:37:00,780 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 334 flow [2021-03-26 00:37:00,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,780 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:37:00,780 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:37:00,780 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:37:00,780 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:37:00,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:37:00,781 INFO L82 PathProgramCache]: Analyzing trace with hash -2030906105, now seen corresponding path program 1 times [2021-03-26 00:37:00,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:37:00,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225676070] [2021-03-26 00:37:00,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:37:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:37:00,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:37:00,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:37:00,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:37:00,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:37:00,830 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 00:37:00,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:37:00,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:37:00,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225676070] [2021-03-26 00:37:00,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:37:00,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:37:00,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38254247] [2021-03-26 00:37:00,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:37:00,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:37:00,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:37:00,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:37:00,837 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 120 [2021-03-26 00:37:00,837 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 334 flow. Second operand has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,837 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:37:00,837 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 120 [2021-03-26 00:37:00,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:37:00,854 INFO L129 PetriNetUnfolder]: 15/101 cut-off events. [2021-03-26 00:37:00,854 INFO L130 PetriNetUnfolder]: For 516/667 co-relation queries the response was YES. [2021-03-26 00:37:00,854 INFO L84 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 101 events. 15/101 cut-off events. For 516/667 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 551 event pairs, 0 based on Foata normal form. 13/112 useless extension candidates. Maximal degree in co-relation 399. Up to 26 conditions per place. [2021-03-26 00:37:00,855 INFO L132 encePairwiseOnDemand]: 116/120 looper letters, 8 selfloop transitions, 6 changer transitions 14/40 dead transitions. [2021-03-26 00:37:00,855 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 40 transitions, 412 flow [2021-03-26 00:37:00,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:37:00,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:37:00,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 375 transitions. [2021-03-26 00:37:00,856 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.78125 [2021-03-26 00:37:00,856 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 375 transitions. [2021-03-26 00:37:00,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 375 transitions. [2021-03-26 00:37:00,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:37:00,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 375 transitions. [2021-03-26 00:37:00,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,857 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,857 INFO L185 Difference]: Start difference. First operand has 49 places, 38 transitions, 334 flow. Second operand 4 states and 375 transitions. [2021-03-26 00:37:00,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 40 transitions, 412 flow [2021-03-26 00:37:00,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 40 transitions, 396 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:37:00,859 INFO L241 Difference]: Finished difference. Result has 52 places, 25 transitions, 211 flow [2021-03-26 00:37:00,859 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=211, PETRI_PLACES=52, PETRI_TRANSITIONS=25} [2021-03-26 00:37:00,860 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 21 predicate places. [2021-03-26 00:37:00,860 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:37:00,860 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 25 transitions, 211 flow [2021-03-26 00:37:00,860 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 25 transitions, 211 flow [2021-03-26 00:37:00,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 25 transitions, 211 flow [2021-03-26 00:37:00,863 INFO L129 PetriNetUnfolder]: 3/38 cut-off events. [2021-03-26 00:37:00,863 INFO L130 PetriNetUnfolder]: For 151/172 co-relation queries the response was YES. [2021-03-26 00:37:00,863 INFO L84 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 38 events. 3/38 cut-off events. For 151/172 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 115 event pairs, 0 based on Foata normal form. 2/40 useless extension candidates. Maximal degree in co-relation 149. Up to 10 conditions per place. [2021-03-26 00:37:00,863 INFO L142 LiptonReduction]: Number of co-enabled transitions 146 [2021-03-26 00:37:00,972 INFO L154 LiptonReduction]: Checked pairs total: 186 [2021-03-26 00:37:00,972 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-26 00:37:00,972 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 112 [2021-03-26 00:37:00,973 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 24 transitions, 226 flow [2021-03-26 00:37:00,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:00,973 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:37:00,973 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:37:00,973 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 00:37:00,973 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:37:00,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:37:00,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1281659909, now seen corresponding path program 1 times [2021-03-26 00:37:00,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:37:00,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008431887] [2021-03-26 00:37:00,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:37:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:37:00,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:37:00,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:37:01,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:37:01,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:37:01,004 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 00:37:01,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:37:01,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:37:01,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008431887] [2021-03-26 00:37:01,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:37:01,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:37:01,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007695112] [2021-03-26 00:37:01,013 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:37:01,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:37:01,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:37:01,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:37:01,015 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 126 [2021-03-26 00:37:01,016 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 24 transitions, 226 flow. Second operand has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:01,016 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:37:01,016 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 126 [2021-03-26 00:37:01,016 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:37:01,034 INFO L129 PetriNetUnfolder]: 4/38 cut-off events. [2021-03-26 00:37:01,035 INFO L130 PetriNetUnfolder]: For 416/486 co-relation queries the response was YES. [2021-03-26 00:37:01,035 INFO L84 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 38 events. 4/38 cut-off events. For 416/486 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 117 event pairs, 0 based on Foata normal form. 11/48 useless extension candidates. Maximal degree in co-relation 170. Up to 10 conditions per place. [2021-03-26 00:37:01,035 INFO L132 encePairwiseOnDemand]: 122/126 looper letters, 3 selfloop transitions, 3 changer transitions 10/25 dead transitions. [2021-03-26 00:37:01,035 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 25 transitions, 271 flow [2021-03-26 00:37:01,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:37:01,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:37:01,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 378 transitions. [2021-03-26 00:37:01,037 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.75 [2021-03-26 00:37:01,037 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 378 transitions. [2021-03-26 00:37:01,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 378 transitions. [2021-03-26 00:37:01,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:37:01,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 378 transitions. [2021-03-26 00:37:01,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 94.5) internal successors, (378), 4 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:01,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 126.0) internal successors, (630), 5 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:01,038 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 126.0) internal successors, (630), 5 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:01,038 INFO L185 Difference]: Start difference. First operand has 49 places, 24 transitions, 226 flow. Second operand 4 states and 378 transitions. [2021-03-26 00:37:01,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 25 transitions, 271 flow [2021-03-26 00:37:01,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 25 transitions, 198 flow, removed 18 selfloop flow, removed 10 redundant places. [2021-03-26 00:37:01,040 INFO L241 Difference]: Finished difference. Result has 44 places, 15 transitions, 94 flow [2021-03-26 00:37:01,040 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=44, PETRI_TRANSITIONS=15} [2021-03-26 00:37:01,040 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2021-03-26 00:37:01,040 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:37:01,040 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 15 transitions, 94 flow [2021-03-26 00:37:01,040 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 15 transitions, 94 flow [2021-03-26 00:37:01,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 15 transitions, 94 flow [2021-03-26 00:37:01,042 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-03-26 00:37:01,042 INFO L130 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2021-03-26 00:37:01,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 15 events. 0/15 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 00:37:01,042 INFO L142 LiptonReduction]: Number of co-enabled transitions 64 [2021-03-26 00:37:01,059 INFO L154 LiptonReduction]: Checked pairs total: 50 [2021-03-26 00:37:01,059 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:37:01,059 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-26 00:37:01,061 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 14 transitions, 90 flow [2021-03-26 00:37:01,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:01,062 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:37:01,062 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:37:01,062 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 00:37:01,062 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:37:01,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:37:01,062 INFO L82 PathProgramCache]: Analyzing trace with hash -2062079984, now seen corresponding path program 1 times [2021-03-26 00:37:01,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:37:01,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142677230] [2021-03-26 00:37:01,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:37:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:37:01,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:37:01,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:37:01,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:37:01,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:37:01,105 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 00:37:01,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:37:01,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:37:01,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142677230] [2021-03-26 00:37:01,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:37:01,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:37:01,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761307389] [2021-03-26 00:37:01,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:37:01,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:37:01,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:37:01,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:37:01,112 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 127 [2021-03-26 00:37:01,112 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 14 transitions, 90 flow. Second operand has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:01,112 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:37:01,112 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 127 [2021-03-26 00:37:01,112 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:37:01,121 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-03-26 00:37:01,122 INFO L130 PetriNetUnfolder]: For 56/60 co-relation queries the response was YES. [2021-03-26 00:37:01,122 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 13 events. 0/13 cut-off events. For 56/60 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 1/14 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 00:37:01,122 INFO L132 encePairwiseOnDemand]: 124/127 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2021-03-26 00:37:01,122 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 13 transitions, 84 flow [2021-03-26 00:37:01,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:37:01,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:37:01,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2021-03-26 00:37:01,123 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7263779527559056 [2021-03-26 00:37:01,123 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 369 transitions. [2021-03-26 00:37:01,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 369 transitions. [2021-03-26 00:37:01,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:37:01,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 369 transitions. [2021-03-26 00:37:01,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:01,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:01,125 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:01,125 INFO L185 Difference]: Start difference. First operand has 40 places, 14 transitions, 90 flow. Second operand 4 states and 369 transitions. [2021-03-26 00:37:01,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 13 transitions, 84 flow [2021-03-26 00:37:01,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 13 transitions, 44 flow, removed 4 selfloop flow, removed 17 redundant places. [2021-03-26 00:37:01,126 INFO L241 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2021-03-26 00:37:01,126 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2021-03-26 00:37:01,126 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -6 predicate places. [2021-03-26 00:37:01,126 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:37:01,126 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 0 transitions, 0 flow [2021-03-26 00:37:01,127 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 0 transitions, 0 flow [2021-03-26 00:37:01,127 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 00:37:01,127 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 00:37:01,127 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:37:01,127 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. [2021-03-26 00:37:01,127 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 00:37:01,127 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:37:01,127 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:37:01,127 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 00:37:01,128 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 00:37:01,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 92.0) internal successors, (460), 5 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:37:01,128 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 00:37:01,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:37:01 BasicIcfg [2021-03-26 00:37:01,131 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:37:01,131 INFO L168 Benchmark]: Toolchain (without parser) took 4368.40 ms. Allocated memory was 360.7 MB in the beginning and 434.1 MB in the end (delta: 73.4 MB). Free memory was 324.5 MB in the beginning and 363.6 MB in the end (delta: -39.1 MB). Peak memory consumption was 35.8 MB. Max. memory is 16.0 GB. [2021-03-26 00:37:01,131 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 360.7 MB. Free memory was 342.5 MB in the beginning and 342.4 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:37:01,132 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.35 ms. Allocated memory is still 360.7 MB. Free memory was 324.3 MB in the beginning and 323.7 MB in the end (delta: 634.3 kB). Peak memory consumption was 9.5 MB. Max. memory is 16.0 GB. [2021-03-26 00:37:01,132 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.14 ms. Allocated memory is still 360.7 MB. Free memory was 323.7 MB in the beginning and 321.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:37:01,134 INFO L168 Benchmark]: Boogie Preprocessor took 12.77 ms. Allocated memory is still 360.7 MB. Free memory was 321.6 MB in the beginning and 319.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:37:01,134 INFO L168 Benchmark]: RCFGBuilder took 319.43 ms. Allocated memory is still 360.7 MB. Free memory was 319.5 MB in the beginning and 294.3 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-26 00:37:01,136 INFO L168 Benchmark]: TraceAbstraction took 3603.66 ms. Allocated memory was 360.7 MB in the beginning and 434.1 MB in the end (delta: 73.4 MB). Free memory was 294.3 MB in the beginning and 363.6 MB in the end (delta: -69.3 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:37:01,137 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 360.7 MB. Free memory was 342.5 MB in the beginning and 342.4 MB in the end (delta: 75.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 388.35 ms. Allocated memory is still 360.7 MB. Free memory was 324.3 MB in the beginning and 323.7 MB in the end (delta: 634.3 kB). Peak memory consumption was 9.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 39.14 ms. Allocated memory is still 360.7 MB. Free memory was 323.7 MB in the beginning and 321.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.77 ms. Allocated memory is still 360.7 MB. Free memory was 321.6 MB in the beginning and 319.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 319.43 ms. Allocated memory is still 360.7 MB. Free memory was 319.5 MB in the beginning and 294.3 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3603.66 ms. Allocated memory was 360.7 MB in the beginning and 434.1 MB in the end (delta: 73.4 MB). Free memory was 294.3 MB in the beginning and 363.6 MB in the end (delta: -69.3 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1631.4ms, 70 PlacesBefore, 31 PlacesAfterwards, 61 TransitionsBefore, 21 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 40 TotalNumberOfCompositions, 942 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 648, positive: 614, positive conditional: 614, positive unconditional: 0, negative: 34, negative conditional: 34, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 497, positive: 481, positive conditional: 0, positive unconditional: 481, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 497, positive: 481, positive conditional: 0, positive unconditional: 481, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 497, positive: 475, positive conditional: 0, positive unconditional: 475, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 89, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 70, negative conditional: 0, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 648, positive: 133, positive conditional: 133, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 497, unknown conditional: 497, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 44, Positive cache size: 39, Positive conditional cache size: 39, Positive unconditional cache size: 0, Negative cache size: 5, Negative conditional cache size: 5, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 734.1ms, 31 PlacesBefore, 27 PlacesAfterwards, 21 TransitionsBefore, 17 TransitionsAfterwards, 160 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 437 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 209, positive: 169, positive conditional: 169, positive unconditional: 0, negative: 40, negative conditional: 40, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 79, positive: 65, positive conditional: 9, positive unconditional: 56, negative: 14, negative conditional: 3, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 79, positive: 65, positive conditional: 9, positive unconditional: 56, negative: 14, negative conditional: 3, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 79, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 20, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 14, negative conditional: 3, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 73, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 51, negative conditional: 14, negative unconditional: 38, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 209, positive: 104, positive conditional: 104, positive unconditional: 0, negative: 26, negative conditional: 26, negative unconditional: 0, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 86, Positive cache size: 72, Positive conditional cache size: 72, Positive unconditional cache size: 0, Negative cache size: 14, Negative conditional cache size: 14, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.3ms, 32 PlacesBefore, 32 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 162 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 119 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 46, positive: 37, positive conditional: 37, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, positive: 13, positive conditional: 9, positive unconditional: 4, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17, positive: 13, positive conditional: 9, positive unconditional: 4, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 46, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 17, unknown conditional: 17, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 103, Positive cache size: 85, Positive conditional cache size: 85, Positive unconditional cache size: 0, Negative cache size: 18, Negative conditional cache size: 18, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.7ms, 38 PlacesBefore, 38 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 166 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 64, positive: 55, positive conditional: 55, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, positive: 14, positive conditional: 12, positive unconditional: 2, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16, positive: 14, positive conditional: 12, positive unconditional: 2, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 16, positive: 14, positive conditional: 0, positive unconditional: 14, 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: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 64, positive: 41, positive conditional: 41, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 119, Positive cache size: 99, Positive conditional cache size: 99, Positive unconditional cache size: 0, Negative cache size: 20, Negative conditional cache size: 20, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.0ms, 41 PlacesBefore, 41 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 154 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 63, positive: 55, positive conditional: 55, positive unconditional: 0, negative: 8, negative conditional: 8, 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: 4, positive unconditional: 4, 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: 4, positive unconditional: 4, 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: 63, positive: 47, positive conditional: 47, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 127, Positive cache size: 107, Positive conditional cache size: 107, Positive unconditional cache size: 0, Negative cache size: 20, Negative conditional cache size: 20, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.6ms, 46 PlacesBefore, 46 PlacesAfterwards, 39 TransitionsBefore, 39 TransitionsAfterwards, 236 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 85 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33, positive: 29, positive conditional: 29, 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: 11, positive: 11, positive conditional: 7, positive unconditional: 4, 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: 11, positive: 11, positive conditional: 7, positive unconditional: 4, 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: 11, positive: 11, positive conditional: 0, positive unconditional: 11, 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: 33, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 138, Positive cache size: 118, Positive conditional cache size: 118, Positive unconditional cache size: 0, Negative cache size: 20, Negative conditional cache size: 20, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.0ms, 49 PlacesBefore, 49 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 232 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 102 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 49, positive conditional: 49, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 10, 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: 10, positive: 10, positive conditional: 10, 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: 10, positive: 10, positive conditional: 0, positive unconditional: 10, 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: 54, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 148, Positive cache size: 128, Positive conditional cache size: 128, Positive unconditional cache size: 0, Negative cache size: 20, Negative conditional cache size: 20, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 112.2ms, 52 PlacesBefore, 49 PlacesAfterwards, 25 TransitionsBefore, 24 TransitionsAfterwards, 146 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 186 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 119, positive: 107, positive conditional: 107, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 25, positive: 25, positive conditional: 21, positive unconditional: 4, 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: 25, positive: 25, positive conditional: 21, positive unconditional: 4, 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: 25, positive: 25, positive conditional: 0, positive unconditional: 25, 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: 119, positive: 82, positive conditional: 82, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 25, unknown conditional: 25, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 92, Positive cache size: 84, Positive conditional cache size: 84, Positive unconditional cache size: 0, Negative cache size: 8, Negative conditional cache size: 8, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.8ms, 44 PlacesBefore, 40 PlacesAfterwards, 15 TransitionsBefore, 14 TransitionsAfterwards, 64 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 50 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 23, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 7, negative conditional: 7, 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: 23, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 42, Positive conditional cache size: 42, Positive unconditional cache size: 0, Negative cache size: 3, Negative conditional cache size: 3, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.5ms, 25 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): 45, Positive cache size: 42, Positive conditional cache size: 42, Positive unconditional cache size: 0, Negative cache size: 3, Negative conditional cache size: 3, 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 4 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3511.2ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 291.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1713.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 51 SDtfs, 34 SDslu, 24 SDs, 0 SdLazy, 59 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 46.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 79.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=334occurred in iteration=6, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.1ms SsaConstructionTime, 117.2ms SatisfiabilityAnalysisTime, 306.3ms InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 450 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...