/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/safe028_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:47:31,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:47:31,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:47:31,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-26 00:47:31,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:47:31,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:47:31,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:47:31,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:47:31,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:47:31,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:47:31,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:47:31,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:47:31,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:47:31,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:47:31,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:47:31,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:47:31,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:47:31,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:47:31,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:47:31,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:47:31,185 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 00:47:31,206 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:47:31,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:47:31,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:47:31,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:47:31,209 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:47:31,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:47:31,209 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:47:31,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:47:31,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:47:31,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:47:31,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:47:31,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:47:31,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:47:31,210 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:47:31,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:47:31,211 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:47:31,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:47:31,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:47:31,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:47:31,211 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:47:31,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:47:31,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:47:31,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:47:31,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:47:31,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:47:31,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:47:31,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:47:31,212 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:47:31,212 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:47:31,212 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:47:31,212 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:47:31,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:47:31,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:47:31,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:47:31,445 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:47:31,446 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:47:31,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i [2021-03-26 00:47:31,491 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13680766f/c682c7fd6628409c9f4bb618377daa14/FLAG68b992a93 [2021-03-26 00:47:31,874 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:47:31,874 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i [2021-03-26 00:47:31,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13680766f/c682c7fd6628409c9f4bb618377daa14/FLAG68b992a93 [2021-03-26 00:47:31,908 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13680766f/c682c7fd6628409c9f4bb618377daa14 [2021-03-26 00:47:31,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:47:31,912 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:47:31,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:47:31,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:47:31,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:47:31,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:47:31" (1/1) ... [2021-03-26 00:47:31,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a7ab30e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:31, skipping insertion in model container [2021-03-26 00:47:31,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:47:31" (1/1) ... [2021-03-26 00:47:31,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:47:31,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:47:32,089 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/safe028_pso.oepc.i[950,963] [2021-03-26 00:47:32,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:47:32,257 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:47:32,266 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/safe028_pso.oepc.i[950,963] [2021-03-26 00:47:32,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:47:32,344 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:47:32,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:32 WrapperNode [2021-03-26 00:47:32,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:47:32,347 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:47:32,347 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:47:32,347 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:47:32,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:32" (1/1) ... [2021-03-26 00:47:32,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:32" (1/1) ... [2021-03-26 00:47:32,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:47:32,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:47:32,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:47:32,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:47:32,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:32" (1/1) ... [2021-03-26 00:47:32,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:32" (1/1) ... [2021-03-26 00:47:32,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:32" (1/1) ... [2021-03-26 00:47:32,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:32" (1/1) ... [2021-03-26 00:47:32,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:32" (1/1) ... [2021-03-26 00:47:32,384 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:32" (1/1) ... [2021-03-26 00:47:32,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:32" (1/1) ... [2021-03-26 00:47:32,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:47:32,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:47:32,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:47:32,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:47:32,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:32" (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 00:47:32,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:47:32,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:47:32,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:47:32,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:47:32,442 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:47:32,442 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:47:32,442 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:47:32,442 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:47:32,443 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 00:47:32,443 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 00:47:32,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:47:32,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:47:32,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:47:32,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:47:32,444 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 00:47:32,740 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:47:32,740 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 00:47:32,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:47:32 BoogieIcfgContainer [2021-03-26 00:47:32,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:47:32,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:47:32,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:47:32,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:47:32,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:47:31" (1/3) ... [2021-03-26 00:47:32,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f023651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:47:32, skipping insertion in model container [2021-03-26 00:47:32,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:47:32" (2/3) ... [2021-03-26 00:47:32,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f023651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:47:32, skipping insertion in model container [2021-03-26 00:47:32,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:47:32" (3/3) ... [2021-03-26 00:47:32,748 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc.i [2021-03-26 00:47:32,751 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:47:32,754 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 00:47:32,755 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:47:32,780 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,781 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,781 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,781 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,781 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,782 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,783 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,783 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,783 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,783 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,785 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,785 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,785 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,786 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,786 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,786 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,786 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,786 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,787 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,787 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,787 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,788 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,790 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,790 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,791 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,794 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,794 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,794 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,795 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,796 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,796 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,796 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,796 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:47:32,800 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:47:32,811 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 00:47:32,831 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:47:32,831 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:47:32,831 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:47:32,832 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:47:32,832 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:47:32,832 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:47:32,832 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:47:32,832 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:47:32,840 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-03-26 00:47:32,876 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-03-26 00:47:32,876 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:47:32,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-03-26 00:47:32,879 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-03-26 00:47:32,884 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-03-26 00:47:32,885 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:32,903 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-26 00:47:32,905 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-26 00:47:32,905 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-03-26 00:47:32,925 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-03-26 00:47:32,925 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:47:32,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-03-26 00:47:32,927 INFO L142 LiptonReduction]: Number of co-enabled transitions 804 [2021-03-26 00:47:34,129 INFO L154 LiptonReduction]: Checked pairs total: 887 [2021-03-26 00:47:34,129 INFO L156 LiptonReduction]: Total number of compositions: 39 [2021-03-26 00:47:34,131 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1247 [2021-03-26 00:47:34,137 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-26 00:47:34,138 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:47:34,138 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:34,138 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:34,138 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:34,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:34,141 INFO L82 PathProgramCache]: Analyzing trace with hash 191965875, now seen corresponding path program 1 times [2021-03-26 00:47:34,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:34,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539531620] [2021-03-26 00:47:34,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:34,279 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 00:47:34,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:47:34,288 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 00:47:34,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539531620] [2021-03-26 00:47:34,289 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:34,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 00:47:34,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450919394] [2021-03-26 00:47:34,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:47:34,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:34,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:47:34,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:47:34,303 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 113 [2021-03-26 00:47:34,311 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 00:47:34,312 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:34,313 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 113 [2021-03-26 00:47:34,313 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:34,329 INFO L129 PetriNetUnfolder]: 7/36 cut-off events. [2021-03-26 00:47:34,333 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:47:34,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 36 events. 7/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 64 event pairs, 3 based on Foata normal form. 1/36 useless extension candidates. Maximal degree in co-relation 52. Up to 18 conditions per place. [2021-03-26 00:47:34,335 INFO L132 encePairwiseOnDemand]: 109/113 looper letters, 4 selfloop transitions, 3 changer transitions 0/22 dead transitions. [2021-03-26 00:47:34,335 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 22 transitions, 67 flow [2021-03-26 00:47:34,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:47:34,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:47:34,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2021-03-26 00:47:34,343 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.855457227138643 [2021-03-26 00:47:34,343 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 290 transitions. [2021-03-26 00:47:34,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 290 transitions. [2021-03-26 00:47:34,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:34,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 290 transitions. [2021-03-26 00:47:34,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 00:47:34,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:34,351 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:34,352 INFO L185 Difference]: Start difference. First operand has 30 places, 20 transitions, 49 flow. Second operand 3 states and 290 transitions. [2021-03-26 00:47:34,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 22 transitions, 67 flow [2021-03-26 00:47:34,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 22 transitions, 64 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 00:47:34,354 INFO L241 Difference]: Finished difference. Result has 30 places, 22 transitions, 65 flow [2021-03-26 00:47:34,355 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=65, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2021-03-26 00:47:34,356 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 0 predicate places. [2021-03-26 00:47:34,356 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:34,356 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 22 transitions, 65 flow [2021-03-26 00:47:34,356 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 22 transitions, 65 flow [2021-03-26 00:47:34,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 22 transitions, 65 flow [2021-03-26 00:47:34,360 INFO L129 PetriNetUnfolder]: 3/30 cut-off events. [2021-03-26 00:47:34,360 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:47:34,360 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 30 events. 3/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 1 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 40. Up to 10 conditions per place. [2021-03-26 00:47:34,360 INFO L142 LiptonReduction]: Number of co-enabled transitions 132 [2021-03-26 00:47:34,787 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 00:47:34,968 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 00:47:35,028 INFO L154 LiptonReduction]: Checked pairs total: 274 [2021-03-26 00:47:35,029 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 00:47:35,029 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 673 [2021-03-26 00:47:35,030 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 57 flow [2021-03-26 00:47:35,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 00:47:35,030 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:35,030 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:35,030 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:47:35,031 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:35,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:35,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1655421042, now seen corresponding path program 1 times [2021-03-26 00:47:35,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:35,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544207187] [2021-03-26 00:47:35,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:35,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:35,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:35,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:35,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:35,101 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 00:47:35,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:47:35,106 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 00:47:35,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544207187] [2021-03-26 00:47:35,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:35,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:47:35,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022064144] [2021-03-26 00:47:35,107 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:35,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:35,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:35,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:35,108 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 117 [2021-03-26 00:47:35,108 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 57 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 00:47:35,109 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:35,109 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 117 [2021-03-26 00:47:35,109 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:35,138 INFO L129 PetriNetUnfolder]: 24/70 cut-off events. [2021-03-26 00:47:35,138 INFO L130 PetriNetUnfolder]: For 19/29 co-relation queries the response was YES. [2021-03-26 00:47:35,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 70 events. 24/70 cut-off events. For 19/29 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 235 event pairs, 3 based on Foata normal form. 8/78 useless extension candidates. Maximal degree in co-relation 150. Up to 30 conditions per place. [2021-03-26 00:47:35,139 INFO L132 encePairwiseOnDemand]: 111/117 looper letters, 8 selfloop transitions, 11 changer transitions 0/29 dead transitions. [2021-03-26 00:47:35,139 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 29 transitions, 133 flow [2021-03-26 00:47:35,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:47:35,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:47:35,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 474 transitions. [2021-03-26 00:47:35,145 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8102564102564103 [2021-03-26 00:47:35,145 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 474 transitions. [2021-03-26 00:47:35,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 474 transitions. [2021-03-26 00:47:35,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:35,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 474 transitions. [2021-03-26 00:47:35,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:35,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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 00:47:35,148 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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 00:47:35,148 INFO L185 Difference]: Start difference. First operand has 26 places, 18 transitions, 57 flow. Second operand 5 states and 474 transitions. [2021-03-26 00:47:35,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 29 transitions, 133 flow [2021-03-26 00:47:35,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 29 transitions, 128 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 00:47:35,149 INFO L241 Difference]: Finished difference. Result has 32 places, 26 transitions, 134 flow [2021-03-26 00:47:35,149 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=134, PETRI_PLACES=32, PETRI_TRANSITIONS=26} [2021-03-26 00:47:35,150 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2021-03-26 00:47:35,150 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:35,150 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 26 transitions, 134 flow [2021-03-26 00:47:35,150 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 26 transitions, 134 flow [2021-03-26 00:47:35,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 26 transitions, 134 flow [2021-03-26 00:47:35,156 INFO L129 PetriNetUnfolder]: 19/65 cut-off events. [2021-03-26 00:47:35,156 INFO L130 PetriNetUnfolder]: For 44/50 co-relation queries the response was YES. [2021-03-26 00:47:35,157 INFO L84 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 65 events. 19/65 cut-off events. For 44/50 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 203 event pairs, 3 based on Foata normal form. 1/66 useless extension candidates. Maximal degree in co-relation 172. Up to 28 conditions per place. [2021-03-26 00:47:35,157 INFO L142 LiptonReduction]: Number of co-enabled transitions 146 [2021-03-26 00:47:35,166 INFO L154 LiptonReduction]: Checked pairs total: 171 [2021-03-26 00:47:35,166 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:47:35,166 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-26 00:47:35,167 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 26 transitions, 134 flow [2021-03-26 00:47:35,168 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 00:47:35,168 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:35,168 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:35,168 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:47:35,168 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:35,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:35,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1972715479, now seen corresponding path program 1 times [2021-03-26 00:47:35,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:35,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221623718] [2021-03-26 00:47:35,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:35,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:35,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:35,210 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 00:47:35,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:47:35,216 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 00:47:35,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221623718] [2021-03-26 00:47:35,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:35,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:47:35,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392101942] [2021-03-26 00:47:35,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:35,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:35,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:35,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:35,218 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 117 [2021-03-26 00:47:35,218 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 26 transitions, 134 flow. Second operand has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 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 00:47:35,218 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:35,218 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 117 [2021-03-26 00:47:35,218 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:35,238 INFO L129 PetriNetUnfolder]: 17/57 cut-off events. [2021-03-26 00:47:35,238 INFO L130 PetriNetUnfolder]: For 67/75 co-relation queries the response was YES. [2021-03-26 00:47:35,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 57 events. 17/57 cut-off events. For 67/75 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 175 event pairs, 1 based on Foata normal form. 2/59 useless extension candidates. Maximal degree in co-relation 185. Up to 30 conditions per place. [2021-03-26 00:47:35,239 INFO L132 encePairwiseOnDemand]: 114/117 looper letters, 9 selfloop transitions, 5 changer transitions 0/26 dead transitions. [2021-03-26 00:47:35,239 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 26 transitions, 162 flow [2021-03-26 00:47:35,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:47:35,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:47:35,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2021-03-26 00:47:35,240 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8404558404558404 [2021-03-26 00:47:35,240 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 295 transitions. [2021-03-26 00:47:35,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 295 transitions. [2021-03-26 00:47:35,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:35,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 295 transitions. [2021-03-26 00:47:35,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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 00:47:35,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 00:47:35,242 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 00:47:35,242 INFO L185 Difference]: Start difference. First operand has 32 places, 26 transitions, 134 flow. Second operand 3 states and 295 transitions. [2021-03-26 00:47:35,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 26 transitions, 162 flow [2021-03-26 00:47:35,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 26 transitions, 156 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 00:47:35,244 INFO L241 Difference]: Finished difference. Result has 34 places, 26 transitions, 145 flow [2021-03-26 00:47:35,244 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2021-03-26 00:47:35,244 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 4 predicate places. [2021-03-26 00:47:35,244 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:35,244 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 26 transitions, 145 flow [2021-03-26 00:47:35,245 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 26 transitions, 145 flow [2021-03-26 00:47:35,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 26 transitions, 145 flow [2021-03-26 00:47:35,249 INFO L129 PetriNetUnfolder]: 17/56 cut-off events. [2021-03-26 00:47:35,249 INFO L130 PetriNetUnfolder]: For 68/74 co-relation queries the response was YES. [2021-03-26 00:47:35,249 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 56 events. 17/56 cut-off events. For 68/74 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 176 event pairs, 0 based on Foata normal form. 2/58 useless extension candidates. Maximal degree in co-relation 159. Up to 27 conditions per place. [2021-03-26 00:47:35,250 INFO L142 LiptonReduction]: Number of co-enabled transitions 146 [2021-03-26 00:47:35,251 INFO L154 LiptonReduction]: Checked pairs total: 178 [2021-03-26 00:47:35,251 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:47:35,251 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-26 00:47:35,252 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 145 flow [2021-03-26 00:47:35,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 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 00:47:35,252 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:35,252 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:35,252 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:47:35,253 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:35,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:35,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1042447873, now seen corresponding path program 1 times [2021-03-26 00:47:35,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:35,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897624639] [2021-03-26 00:47:35,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:35,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:35,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:35,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:35,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:35,282 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 00:47:35,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897624639] [2021-03-26 00:47:35,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:35,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:47:35,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560595447] [2021-03-26 00:47:35,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:47:35,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:35,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:47:35,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:47:35,283 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 117 [2021-03-26 00:47:35,283 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 00:47:35,283 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:35,284 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 117 [2021-03-26 00:47:35,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:35,297 INFO L129 PetriNetUnfolder]: 42/112 cut-off events. [2021-03-26 00:47:35,298 INFO L130 PetriNetUnfolder]: For 132/143 co-relation queries the response was YES. [2021-03-26 00:47:35,298 INFO L84 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 112 events. 42/112 cut-off events. For 132/143 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 466 event pairs, 9 based on Foata normal form. 2/109 useless extension candidates. Maximal degree in co-relation 309. Up to 58 conditions per place. [2021-03-26 00:47:35,299 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 4 selfloop transitions, 4 changer transitions 0/29 dead transitions. [2021-03-26 00:47:35,299 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 29 transitions, 167 flow [2021-03-26 00:47:35,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:47:35,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:47:35,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2021-03-26 00:47:35,300 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8290598290598291 [2021-03-26 00:47:35,300 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 291 transitions. [2021-03-26 00:47:35,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 291 transitions. [2021-03-26 00:47:35,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:35,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 291 transitions. [2021-03-26 00:47:35,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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 00:47:35,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 00:47:35,302 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 117.0) internal successors, (468), 4 states have internal predecessors, (468), 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 00:47:35,302 INFO L185 Difference]: Start difference. First operand has 34 places, 26 transitions, 145 flow. Second operand 3 states and 291 transitions. [2021-03-26 00:47:35,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 29 transitions, 167 flow [2021-03-26 00:47:35,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 29 transitions, 157 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:47:35,304 INFO L241 Difference]: Finished difference. Result has 35 places, 29 transitions, 161 flow [2021-03-26 00:47:35,304 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=35, PETRI_TRANSITIONS=29} [2021-03-26 00:47:35,304 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2021-03-26 00:47:35,304 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:35,304 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 29 transitions, 161 flow [2021-03-26 00:47:35,304 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 29 transitions, 161 flow [2021-03-26 00:47:35,304 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 29 transitions, 161 flow [2021-03-26 00:47:35,311 INFO L129 PetriNetUnfolder]: 42/112 cut-off events. [2021-03-26 00:47:35,312 INFO L130 PetriNetUnfolder]: For 116/121 co-relation queries the response was YES. [2021-03-26 00:47:35,312 INFO L84 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 112 events. 42/112 cut-off events. For 116/121 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 487 event pairs, 9 based on Foata normal form. 2/111 useless extension candidates. Maximal degree in co-relation 315. Up to 58 conditions per place. [2021-03-26 00:47:35,313 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-26 00:47:35,314 INFO L154 LiptonReduction]: Checked pairs total: 85 [2021-03-26 00:47:35,314 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:47:35,314 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-26 00:47:35,315 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 29 transitions, 161 flow [2021-03-26 00:47:35,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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 00:47:35,315 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:35,315 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:35,315 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:47:35,315 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:35,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:35,316 INFO L82 PathProgramCache]: Analyzing trace with hash -556490402, now seen corresponding path program 1 times [2021-03-26 00:47:35,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:35,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636679007] [2021-03-26 00:47:35,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:35,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:35,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:35,340 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-26 00:47:35,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 00:47:35,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:35,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:35,342 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 00:47:35,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636679007] [2021-03-26 00:47:35,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:35,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:47:35,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600166695] [2021-03-26 00:47:35,343 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:35,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:35,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:35,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:35,344 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 117 [2021-03-26 00:47:35,344 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 29 transitions, 161 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:35,344 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:35,344 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 117 [2021-03-26 00:47:35,344 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:35,359 INFO L129 PetriNetUnfolder]: 24/75 cut-off events. [2021-03-26 00:47:35,359 INFO L130 PetriNetUnfolder]: For 80/101 co-relation queries the response was YES. [2021-03-26 00:47:35,360 INFO L84 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 75 events. 24/75 cut-off events. For 80/101 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 229 event pairs, 1 based on Foata normal form. 21/95 useless extension candidates. Maximal degree in co-relation 240. Up to 36 conditions per place. [2021-03-26 00:47:35,360 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 4 selfloop transitions, 7 changer transitions 0/32 dead transitions. [2021-03-26 00:47:35,360 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 32 transitions, 195 flow [2021-03-26 00:47:35,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:47:35,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:47:35,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 388 transitions. [2021-03-26 00:47:35,361 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8290598290598291 [2021-03-26 00:47:35,361 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 388 transitions. [2021-03-26 00:47:35,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 388 transitions. [2021-03-26 00:47:35,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:35,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 388 transitions. [2021-03-26 00:47:35,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 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 00:47:35,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 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 00:47:35,363 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 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 00:47:35,363 INFO L185 Difference]: Start difference. First operand has 35 places, 29 transitions, 161 flow. Second operand 4 states and 388 transitions. [2021-03-26 00:47:35,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 32 transitions, 195 flow [2021-03-26 00:47:35,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 32 transitions, 191 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 00:47:35,365 INFO L241 Difference]: Finished difference. Result has 38 places, 32 transitions, 197 flow [2021-03-26 00:47:35,365 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=197, PETRI_PLACES=38, PETRI_TRANSITIONS=32} [2021-03-26 00:47:35,365 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 8 predicate places. [2021-03-26 00:47:35,365 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:35,365 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 32 transitions, 197 flow [2021-03-26 00:47:35,365 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 32 transitions, 197 flow [2021-03-26 00:47:35,366 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 32 transitions, 197 flow [2021-03-26 00:47:35,371 INFO L129 PetriNetUnfolder]: 24/76 cut-off events. [2021-03-26 00:47:35,371 INFO L130 PetriNetUnfolder]: For 104/113 co-relation queries the response was YES. [2021-03-26 00:47:35,371 INFO L84 FinitePrefix]: Finished finitePrefix Result has 264 conditions, 76 events. 24/76 cut-off events. For 104/113 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 260 event pairs, 1 based on Foata normal form. 6/82 useless extension candidates. Maximal degree in co-relation 247. Up to 36 conditions per place. [2021-03-26 00:47:35,373 INFO L142 LiptonReduction]: Number of co-enabled transitions 148 [2021-03-26 00:47:35,374 INFO L154 LiptonReduction]: Checked pairs total: 85 [2021-03-26 00:47:35,374 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:47:35,374 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-26 00:47:35,375 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 32 transitions, 197 flow [2021-03-26 00:47:35,376 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:35,376 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:35,376 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:35,376 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:47:35,376 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:35,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:35,376 INFO L82 PathProgramCache]: Analyzing trace with hash 2061619351, now seen corresponding path program 1 times [2021-03-26 00:47:35,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:35,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112942590] [2021-03-26 00:47:35,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:35,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:35,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:35,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:35,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:35,430 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-26 00:47:35,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 00:47:35,433 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:35,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:35,433 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 00:47:35,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112942590] [2021-03-26 00:47:35,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:35,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:47:35,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303539336] [2021-03-26 00:47:35,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:47:35,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:35,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:47:35,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:47:35,435 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 117 [2021-03-26 00:47:35,435 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 32 transitions, 197 flow. Second operand has 5 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:35,435 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:35,436 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 117 [2021-03-26 00:47:35,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:35,452 INFO L129 PetriNetUnfolder]: 19/59 cut-off events. [2021-03-26 00:47:35,452 INFO L130 PetriNetUnfolder]: For 115/149 co-relation queries the response was YES. [2021-03-26 00:47:35,452 INFO L84 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 59 events. 19/59 cut-off events. For 115/149 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 152 event pairs, 0 based on Foata normal form. 29/87 useless extension candidates. Maximal degree in co-relation 209. Up to 27 conditions per place. [2021-03-26 00:47:35,452 INFO L132 encePairwiseOnDemand]: 112/117 looper letters, 1 selfloop transitions, 10 changer transitions 0/32 dead transitions. [2021-03-26 00:47:35,452 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 32 transitions, 219 flow [2021-03-26 00:47:35,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:47:35,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:47:35,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 482 transitions. [2021-03-26 00:47:35,454 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8239316239316239 [2021-03-26 00:47:35,454 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 482 transitions. [2021-03-26 00:47:35,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 482 transitions. [2021-03-26 00:47:35,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:35,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 482 transitions. [2021-03-26 00:47:35,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 96.4) internal successors, (482), 5 states have internal predecessors, (482), 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 00:47:35,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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 00:47:35,456 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 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 00:47:35,456 INFO L185 Difference]: Start difference. First operand has 38 places, 32 transitions, 197 flow. Second operand 5 states and 482 transitions. [2021-03-26 00:47:35,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 32 transitions, 219 flow [2021-03-26 00:47:35,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 32 transitions, 192 flow, removed 7 selfloop flow, removed 3 redundant places. [2021-03-26 00:47:35,457 INFO L241 Difference]: Finished difference. Result has 40 places, 32 transitions, 198 flow [2021-03-26 00:47:35,457 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=198, PETRI_PLACES=40, PETRI_TRANSITIONS=32} [2021-03-26 00:47:35,458 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 10 predicate places. [2021-03-26 00:47:35,458 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:35,458 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 32 transitions, 198 flow [2021-03-26 00:47:35,458 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 32 transitions, 198 flow [2021-03-26 00:47:35,458 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 32 transitions, 198 flow [2021-03-26 00:47:35,461 INFO L129 PetriNetUnfolder]: 19/59 cut-off events. [2021-03-26 00:47:35,461 INFO L130 PetriNetUnfolder]: For 80/84 co-relation queries the response was YES. [2021-03-26 00:47:35,462 INFO L84 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 59 events. 19/59 cut-off events. For 80/84 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 169 event pairs, 0 based on Foata normal form. 2/61 useless extension candidates. Maximal degree in co-relation 180. Up to 17 conditions per place. [2021-03-26 00:47:35,462 INFO L142 LiptonReduction]: Number of co-enabled transitions 126 [2021-03-26 00:47:35,514 INFO L154 LiptonReduction]: Checked pairs total: 150 [2021-03-26 00:47:35,515 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:47:35,515 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-03-26 00:47:35,515 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 31 transitions, 196 flow [2021-03-26 00:47:35,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 94.8) internal successors, (474), 5 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:47:35,516 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:35,516 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:35,516 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:47:35,516 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:35,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:35,516 INFO L82 PathProgramCache]: Analyzing trace with hash -427407711, now seen corresponding path program 1 times [2021-03-26 00:47:35,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:35,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975097789] [2021-03-26 00:47:35,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:35,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:35,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:35,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:35,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:35,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:35,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:35,539 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 00:47:35,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975097789] [2021-03-26 00:47:35,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:35,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:47:35,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634253013] [2021-03-26 00:47:35,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:35,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:35,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:35,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:35,541 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 118 [2021-03-26 00:47:35,541 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 31 transitions, 196 flow. Second operand has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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 00:47:35,541 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:35,541 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 118 [2021-03-26 00:47:35,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:35,554 INFO L129 PetriNetUnfolder]: 27/81 cut-off events. [2021-03-26 00:47:35,554 INFO L130 PetriNetUnfolder]: For 151/167 co-relation queries the response was YES. [2021-03-26 00:47:35,555 INFO L84 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 81 events. 27/81 cut-off events. For 151/167 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 280 event pairs, 0 based on Foata normal form. 9/88 useless extension candidates. Maximal degree in co-relation 268. Up to 28 conditions per place. [2021-03-26 00:47:35,555 INFO L132 encePairwiseOnDemand]: 115/118 looper letters, 5 selfloop transitions, 1 changer transitions 9/34 dead transitions. [2021-03-26 00:47:35,555 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 34 transitions, 230 flow [2021-03-26 00:47:35,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:47:35,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:47:35,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 394 transitions. [2021-03-26 00:47:35,556 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8347457627118644 [2021-03-26 00:47:35,556 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 394 transitions. [2021-03-26 00:47:35,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 394 transitions. [2021-03-26 00:47:35,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:35,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 394 transitions. [2021-03-26 00:47:35,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 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 00:47:35,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 00:47:35,558 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 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 00:47:35,558 INFO L185 Difference]: Start difference. First operand has 39 places, 31 transitions, 196 flow. Second operand 4 states and 394 transitions. [2021-03-26 00:47:35,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 34 transitions, 230 flow [2021-03-26 00:47:35,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 34 transitions, 204 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-03-26 00:47:35,559 INFO L241 Difference]: Finished difference. Result has 41 places, 25 transitions, 139 flow [2021-03-26 00:47:35,559 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=139, PETRI_PLACES=41, PETRI_TRANSITIONS=25} [2021-03-26 00:47:35,560 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 11 predicate places. [2021-03-26 00:47:35,560 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:35,560 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 25 transitions, 139 flow [2021-03-26 00:47:35,560 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 25 transitions, 139 flow [2021-03-26 00:47:35,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 25 transitions, 139 flow [2021-03-26 00:47:35,563 INFO L129 PetriNetUnfolder]: 9/41 cut-off events. [2021-03-26 00:47:35,563 INFO L130 PetriNetUnfolder]: For 44/45 co-relation queries the response was YES. [2021-03-26 00:47:35,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 41 events. 9/41 cut-off events. For 44/45 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 90 event pairs, 0 based on Foata normal form. 1/41 useless extension candidates. Maximal degree in co-relation 115. Up to 12 conditions per place. [2021-03-26 00:47:35,563 INFO L142 LiptonReduction]: Number of co-enabled transitions 56 [2021-03-26 00:47:35,583 INFO L154 LiptonReduction]: Checked pairs total: 24 [2021-03-26 00:47:35,583 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:47:35,583 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-26 00:47:35,586 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 24 transitions, 137 flow [2021-03-26 00:47:35,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 98.0) internal successors, (392), 4 states have internal predecessors, (392), 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 00:47:35,586 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:35,586 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:35,586 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 00:47:35,586 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:35,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:35,587 INFO L82 PathProgramCache]: Analyzing trace with hash 659959913, now seen corresponding path program 1 times [2021-03-26 00:47:35,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:35,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500481203] [2021-03-26 00:47:35,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:35,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:35,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:47:35,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:35,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:35,630 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-26 00:47:35,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 00:47:35,635 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 00:47:35,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500481203] [2021-03-26 00:47:35,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:35,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:47:35,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708950149] [2021-03-26 00:47:35,637 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:35,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:35,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:35,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:35,638 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 119 [2021-03-26 00:47:35,638 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 24 transitions, 137 flow. Second operand has 4 states, 4 states have (on average 92.5) internal successors, (370), 4 states have internal predecessors, (370), 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 00:47:35,638 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:35,638 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 119 [2021-03-26 00:47:35,638 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:35,659 INFO L129 PetriNetUnfolder]: 13/47 cut-off events. [2021-03-26 00:47:35,659 INFO L130 PetriNetUnfolder]: For 112/122 co-relation queries the response was YES. [2021-03-26 00:47:35,659 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 47 events. 13/47 cut-off events. For 112/122 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 115 event pairs, 0 based on Foata normal form. 11/58 useless extension candidates. Maximal degree in co-relation 148. Up to 16 conditions per place. [2021-03-26 00:47:35,660 INFO L132 encePairwiseOnDemand]: 114/119 looper letters, 3 selfloop transitions, 3 changer transitions 6/26 dead transitions. [2021-03-26 00:47:35,660 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 26 transitions, 178 flow [2021-03-26 00:47:35,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:47:35,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:47:35,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 466 transitions. [2021-03-26 00:47:35,661 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7831932773109244 [2021-03-26 00:47:35,661 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 466 transitions. [2021-03-26 00:47:35,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 466 transitions. [2021-03-26 00:47:35,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:35,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 466 transitions. [2021-03-26 00:47:35,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.2) internal successors, (466), 5 states have internal predecessors, (466), 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 00:47:35,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 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 00:47:35,663 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 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 00:47:35,663 INFO L185 Difference]: Start difference. First operand has 39 places, 24 transitions, 137 flow. Second operand 5 states and 466 transitions. [2021-03-26 00:47:35,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 26 transitions, 178 flow [2021-03-26 00:47:35,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 26 transitions, 165 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-26 00:47:35,665 INFO L241 Difference]: Finished difference. Result has 41 places, 20 transitions, 113 flow [2021-03-26 00:47:35,666 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=35, 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=5, PETRI_FLOW=113, PETRI_PLACES=41, PETRI_TRANSITIONS=20} [2021-03-26 00:47:35,666 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 11 predicate places. [2021-03-26 00:47:35,666 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:35,666 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 20 transitions, 113 flow [2021-03-26 00:47:35,666 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 20 transitions, 113 flow [2021-03-26 00:47:35,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 20 transitions, 113 flow [2021-03-26 00:47:35,668 INFO L129 PetriNetUnfolder]: 6/27 cut-off events. [2021-03-26 00:47:35,668 INFO L130 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2021-03-26 00:47:35,668 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 27 events. 6/27 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 42 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 74. Up to 10 conditions per place. [2021-03-26 00:47:35,668 INFO L142 LiptonReduction]: Number of co-enabled transitions 10 [2021-03-26 00:47:35,804 INFO L154 LiptonReduction]: Checked pairs total: 11 [2021-03-26 00:47:35,804 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 00:47:35,804 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 138 [2021-03-26 00:47:35,807 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 19 transitions, 137 flow [2021-03-26 00:47:35,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 92.5) internal successors, (370), 4 states have internal predecessors, (370), 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 00:47:35,807 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:47:35,807 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:47:35,807 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 00:47:35,807 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:47:35,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:47:35,808 INFO L82 PathProgramCache]: Analyzing trace with hash -657505930, now seen corresponding path program 1 times [2021-03-26 00:47:35,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:47:35,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834867585] [2021-03-26 00:47:35,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:47:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:47:35,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:35,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:35,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:47:35,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:47:35,835 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 00:47:35,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834867585] [2021-03-26 00:47:35,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:47:35,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:47:35,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920063272] [2021-03-26 00:47:35,835 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:47:35,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:47:35,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:47:35,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:47:35,836 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 124 [2021-03-26 00:47:35,836 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 19 transitions, 137 flow. Second operand has 4 states, 4 states have (on average 96.25) internal successors, (385), 4 states have internal predecessors, (385), 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 00:47:35,836 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:47:35,836 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 124 [2021-03-26 00:47:35,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:47:35,858 INFO L129 PetriNetUnfolder]: 6/29 cut-off events. [2021-03-26 00:47:35,858 INFO L130 PetriNetUnfolder]: For 88/89 co-relation queries the response was YES. [2021-03-26 00:47:35,858 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 29 events. 6/29 cut-off events. For 88/89 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 62 event pairs, 0 based on Foata normal form. 2/31 useless extension candidates. Maximal degree in co-relation 112. Up to 9 conditions per place. [2021-03-26 00:47:35,858 INFO L132 encePairwiseOnDemand]: 119/124 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2021-03-26 00:47:35,858 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 18 transitions, 143 flow [2021-03-26 00:47:35,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:47:35,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:47:35,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 389 transitions. [2021-03-26 00:47:35,859 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7842741935483871 [2021-03-26 00:47:35,859 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 389 transitions. [2021-03-26 00:47:35,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 389 transitions. [2021-03-26 00:47:35,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:47:35,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 389 transitions. [2021-03-26 00:47:35,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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 00:47:35,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 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 00:47:35,861 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 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 00:47:35,861 INFO L185 Difference]: Start difference. First operand has 38 places, 19 transitions, 137 flow. Second operand 4 states and 389 transitions. [2021-03-26 00:47:35,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 18 transitions, 143 flow [2021-03-26 00:47:35,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 18 transitions, 94 flow, removed 6 selfloop flow, removed 10 redundant places. [2021-03-26 00:47:35,862 INFO L241 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2021-03-26 00:47:35,862 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2021-03-26 00:47:35,862 INFO L343 CegarLoopForPetriNet]: 30 programPoint places, 0 predicate places. [2021-03-26 00:47:35,862 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:47:35,862 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 0 transitions, 0 flow [2021-03-26 00:47:35,862 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 0 transitions, 0 flow [2021-03-26 00:47:35,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 00:47:35,862 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 00:47:35,862 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:47:35,863 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 00:47:35,863 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 00:47:35,863 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:47:35,863 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:47:35,863 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 00:47:35,864 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 00:47:35,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 96.25) internal successors, (385), 4 states have internal predecessors, (385), 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 00:47:35,865 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 00:47:35,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:47:35 BasicIcfg [2021-03-26 00:47:35,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:47:35,867 INFO L168 Benchmark]: Toolchain (without parser) took 3955.45 ms. Allocated memory was 255.9 MB in the beginning and 419.4 MB in the end (delta: 163.6 MB). Free memory was 235.0 MB in the beginning and 363.5 MB in the end (delta: -128.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 16.0 GB. [2021-03-26 00:47:35,869 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.6 MB in the end (delta: 174.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:47:35,869 INFO L168 Benchmark]: CACSL2BoogieTranslator took 432.88 ms. Allocated memory was 255.9 MB in the beginning and 348.1 MB in the end (delta: 92.3 MB). Free memory was 234.4 MB in the beginning and 311.2 MB in the end (delta: -76.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-26 00:47:35,871 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.27 ms. Allocated memory is still 348.1 MB. Free memory was 311.2 MB in the beginning and 309.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:47:35,871 INFO L168 Benchmark]: Boogie Preprocessor took 13.09 ms. Allocated memory is still 348.1 MB. Free memory was 309.0 MB in the beginning and 307.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:47:35,871 INFO L168 Benchmark]: RCFGBuilder took 354.48 ms. Allocated memory is still 348.1 MB. Free memory was 307.7 MB in the beginning and 285.3 MB in the end (delta: 22.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-03-26 00:47:35,871 INFO L168 Benchmark]: TraceAbstraction took 3123.31 ms. Allocated memory was 348.1 MB in the beginning and 419.4 MB in the end (delta: 71.3 MB). Free memory was 284.6 MB in the beginning and 363.5 MB in the end (delta: -78.9 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:47:35,873 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 237.8 MB in the beginning and 237.6 MB in the end (delta: 174.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 432.88 ms. Allocated memory was 255.9 MB in the beginning and 348.1 MB in the end (delta: 92.3 MB). Free memory was 234.4 MB in the beginning and 311.2 MB in the end (delta: -76.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 26.27 ms. Allocated memory is still 348.1 MB. Free memory was 311.2 MB in the beginning and 309.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.09 ms. Allocated memory is still 348.1 MB. Free memory was 309.0 MB in the beginning and 307.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 354.48 ms. Allocated memory is still 348.1 MB. Free memory was 307.7 MB in the beginning and 285.3 MB in the end (delta: 22.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3123.31 ms. Allocated memory was 348.1 MB in the beginning and 419.4 MB in the end (delta: 71.3 MB). Free memory was 284.6 MB in the beginning and 363.5 MB in the end (delta: -78.9 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1224.9ms, 68 PlacesBefore, 30 PlacesAfterwards, 59 TransitionsBefore, 20 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 39 TotalNumberOfCompositions, 887 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 561, positive: 531, positive conditional: 531, positive unconditional: 0, negative: 30, negative conditional: 30, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 490, positive: 474, positive conditional: 0, positive unconditional: 474, 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: 490, positive: 474, positive conditional: 0, positive unconditional: 474, 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: 490, positive: 467, positive conditional: 0, positive unconditional: 467, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 23, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 68, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 561, positive: 57, positive conditional: 57, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 490, unknown conditional: 490, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 5, Positive conditional cache size: 5, 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: 672.4ms, 30 PlacesBefore, 26 PlacesAfterwards, 22 TransitionsBefore, 18 TransitionsAfterwards, 132 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 274 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 159, positive: 134, positive conditional: 134, positive unconditional: 0, negative: 25, negative conditional: 25, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 55, positive: 47, positive conditional: 4, positive unconditional: 43, negative: 8, negative conditional: 1, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 55, positive: 47, positive conditional: 4, positive unconditional: 43, negative: 8, negative conditional: 1, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 55, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 8, negative conditional: 1, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 42, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 24, negative conditional: 4, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 159, positive: 87, positive conditional: 87, positive unconditional: 0, negative: 17, negative conditional: 17, negative unconditional: 0, unknown: 55, unknown conditional: 55, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 42, Positive cache size: 34, Positive conditional cache size: 34, 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: 15.5ms, 32 PlacesBefore, 32 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 146 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 171 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 95, positive: 83, positive conditional: 83, 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: 18, positive: 17, positive conditional: 8, positive unconditional: 9, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18, positive: 17, positive conditional: 8, positive unconditional: 9, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 95, positive: 66, positive conditional: 66, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 18, unknown conditional: 18, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 51, Positive conditional cache size: 51, Positive unconditional cache size: 0, Negative cache size: 9, Negative conditional cache size: 9, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.7ms, 34 PlacesBefore, 34 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 146 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 178 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 101, positive: 88, positive conditional: 88, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 4, positive unconditional: 3, 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: 7, positive: 7, positive conditional: 4, positive unconditional: 3, 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: 7, positive: 7, positive conditional: 0, positive unconditional: 7, 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: 101, positive: 81, positive conditional: 81, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 58, Positive conditional cache size: 58, Positive unconditional cache size: 0, Negative cache size: 9, Negative conditional cache size: 9, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.1ms, 35 PlacesBefore, 35 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 160 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 85 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 0, positive conditional: 0, 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: 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: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 58, Positive conditional cache size: 58, Positive unconditional cache size: 0, Negative cache size: 9, Negative conditional cache size: 9, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.8ms, 38 PlacesBefore, 38 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 148 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 85 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15, positive: 10, positive conditional: 10, 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: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 15, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 60, Positive conditional cache size: 60, Positive unconditional cache size: 0, Negative cache size: 9, Negative conditional cache size: 9, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 56.7ms, 40 PlacesBefore, 39 PlacesAfterwards, 32 TransitionsBefore, 31 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 150 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 10, negative conditional: 10, 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: 10, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 56, Positive cache size: 51, Positive conditional cache size: 51, 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: 23.4ms, 41 PlacesBefore, 39 PlacesAfterwards, 25 TransitionsBefore, 24 TransitionsAfterwards, 56 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 23, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 22, positive conditional: 14, positive unconditional: 8, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 23, positive: 22, positive conditional: 14, positive unconditional: 8, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 23, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 23, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 23, unknown conditional: 23, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 43, Positive conditional cache size: 43, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 137.8ms, 41 PlacesBefore, 38 PlacesAfterwards, 20 TransitionsBefore, 19 TransitionsAfterwards, 10 CoEnabledTransitionPairs, 4 FixpointIterations, 3 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 11 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11, positive: 11, positive conditional: 11, 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: 5, positive: 5, positive conditional: 5, 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: 5, positive: 5, positive conditional: 5, 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: 5, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 11, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 5, Positive conditional cache size: 5, Positive unconditional cache size: 0, Negative cache size: 1, Negative conditional cache size: 1, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.9ms, 30 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): 6, Positive cache size: 5, Positive conditional cache size: 5, Positive unconditional cache size: 0, Negative cache size: 1, Negative conditional cache size: 1, 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, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3036.7ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 267.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1302.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 36 SDtfs, 17 SDslu, 9 SDs, 0 SdLazy, 77 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 57.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 57.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred 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, 109.3ms SatisfiabilityAnalysisTime, 280.8ms InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 537 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...