/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/safe001_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:33:50,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:33:50,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:33:50,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-26 00:33:50,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:33:50,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:33:50,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:33:50,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:33:50,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:33:50,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:33:50,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:33:50,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:33:50,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:33:50,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:33:50,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:33:50,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:33:50,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:33:50,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:33:50,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:33:50,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:33:50,208 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 00:33:50,235 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:33:50,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:33:50,238 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:33:50,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:33:50,238 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:33:50,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:33:50,238 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:33:50,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:33:50,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:33:50,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:33:50,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:33:50,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:33:50,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:33:50,240 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:33:50,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:33:50,240 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:33:50,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:33:50,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:33:50,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:33:50,240 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:33:50,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:33:50,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:33:50,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:33:50,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:33:50,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:33:50,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:33:50,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:33:50,241 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:33:50,241 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:33:50,241 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:33:50,241 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:33:50,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:33:50,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:33:50,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:33:50,544 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:33:50,545 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:33:50,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2021-03-26 00:33:50,594 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afb7fcf55/c5ae3391c83348608f014206c5172950/FLAGd0500c8f0 [2021-03-26 00:33:51,007 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:33:51,008 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2021-03-26 00:33:51,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afb7fcf55/c5ae3391c83348608f014206c5172950/FLAGd0500c8f0 [2021-03-26 00:33:51,030 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afb7fcf55/c5ae3391c83348608f014206c5172950 [2021-03-26 00:33:51,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:33:51,032 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:33:51,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:33:51,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:33:51,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:33:51,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:33:51" (1/1) ... [2021-03-26 00:33:51,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fed3d7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:33:51, skipping insertion in model container [2021-03-26 00:33:51,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:33:51" (1/1) ... [2021-03-26 00:33:51,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:33:51,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:33:51,154 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/safe001_tso.opt.i[949,962] [2021-03-26 00:33:51,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:33:51,298 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:33:51,307 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/safe001_tso.opt.i[949,962] [2021-03-26 00:33:51,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:33:51,404 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:33:51,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:33:51 WrapperNode [2021-03-26 00:33:51,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:33:51,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:33:51,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:33:51,406 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:33:51,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:33:51" (1/1) ... [2021-03-26 00:33:51,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:33:51" (1/1) ... [2021-03-26 00:33:51,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:33:51,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:33:51,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:33:51,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:33:51,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:33:51" (1/1) ... [2021-03-26 00:33:51,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:33:51" (1/1) ... [2021-03-26 00:33:51,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:33:51" (1/1) ... [2021-03-26 00:33:51,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:33:51" (1/1) ... [2021-03-26 00:33:51,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:33:51" (1/1) ... [2021-03-26 00:33:51,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:33:51" (1/1) ... [2021-03-26 00:33:51,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:33:51" (1/1) ... [2021-03-26 00:33:51,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:33:51,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:33:51,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:33:51,482 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:33:51,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:33:51" (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 00:33:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:33:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:33:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:33:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:33:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:33:51,546 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:33:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:33:51,546 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:33:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 00:33:51,546 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 00:33:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:33:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:33:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:33:51,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:33:51,548 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 00:33:51,801 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:33:51,801 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 00:33:51,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:33:51 BoogieIcfgContainer [2021-03-26 00:33:51,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:33:51,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:33:51,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:33:51,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:33:51,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:33:51" (1/3) ... [2021-03-26 00:33:51,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f8da1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:33:51, skipping insertion in model container [2021-03-26 00:33:51,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:33:51" (2/3) ... [2021-03-26 00:33:51,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f8da1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:33:51, skipping insertion in model container [2021-03-26 00:33:51,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:33:51" (3/3) ... [2021-03-26 00:33:51,807 INFO L111 eAbstractionObserver]: Analyzing ICFG safe001_tso.opt.i [2021-03-26 00:33:51,811 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:33:51,813 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 00:33:51,814 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:33:51,830 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,830 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,831 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,831 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,831 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,831 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,831 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,831 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,831 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,832 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,832 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,832 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,832 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,832 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,832 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,832 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,833 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,833 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,833 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,833 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,833 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,833 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,833 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,833 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,834 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,834 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,834 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,834 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,834 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,834 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,834 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,834 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,835 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,835 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,835 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,835 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,836 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,837 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,837 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,837 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,840 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,840 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,840 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,840 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,841 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,841 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,841 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,841 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:33:51,842 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:33:51,854 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 00:33:51,867 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:33:51,867 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:33:51,867 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:33:51,867 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:33:51,867 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:33:51,867 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:33:51,867 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:33:51,868 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:33:51,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-03-26 00:33:51,938 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-03-26 00:33:51,938 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:33:51,945 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 57 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-26 00:33:51,946 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-03-26 00:33:51,951 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-03-26 00:33:51,952 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:33:51,961 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-26 00:33:51,964 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-26 00:33:51,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-03-26 00:33:51,983 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-03-26 00:33:51,983 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:33:51,983 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 45 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-26 00:33:51,985 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-26 00:33:53,057 INFO L154 LiptonReduction]: Checked pairs total: 996 [2021-03-26 00:33:53,058 INFO L156 LiptonReduction]: Total number of compositions: 37 [2021-03-26 00:33:53,060 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1109 [2021-03-26 00:33:53,068 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-26 00:33:53,068 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:33:53,068 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:33:53,069 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:33:53,069 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:33:53,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:33:53,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1399899973, now seen corresponding path program 1 times [2021-03-26 00:33:53,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:33:53,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127981446] [2021-03-26 00:33:53,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:33:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:33:53,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:33:53,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:33:53,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:33:53,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:33:53,227 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:33:53,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:33:53,235 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 00:33:53,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127981446] [2021-03-26 00:33:53,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:33:53,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:33:53,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715560204] [2021-03-26 00:33:53,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:33:53,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:33:53,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:33:53,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:33:53,250 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 111 [2021-03-26 00:33:53,253 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 53 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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 00:33:53,253 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:33:53,253 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 111 [2021-03-26 00:33:53,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:33:53,287 INFO L129 PetriNetUnfolder]: 71/185 cut-off events. [2021-03-26 00:33:53,287 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:33:53,288 INFO L84 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 185 events. 71/185 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 821 event pairs, 20 based on Foata normal form. 10/186 useless extension candidates. Maximal degree in co-relation 319. Up to 64 conditions per place. [2021-03-26 00:33:53,289 INFO L132 encePairwiseOnDemand]: 103/111 looper letters, 11 selfloop transitions, 7 changer transitions 0/31 dead transitions. [2021-03-26 00:33:53,289 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 31 transitions, 107 flow [2021-03-26 00:33:53,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:33:53,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:33:53,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 364 transitions. [2021-03-26 00:33:53,298 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8198198198198198 [2021-03-26 00:33:53,298 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 364 transitions. [2021-03-26 00:33:53,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 364 transitions. [2021-03-26 00:33:53,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:33:53,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 364 transitions. [2021-03-26 00:33:53,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 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 00:33:53,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 111.0) internal successors, (555), 5 states have internal predecessors, (555), 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 00:33:53,307 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 111.0) internal successors, (555), 5 states have internal predecessors, (555), 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 00:33:53,308 INFO L185 Difference]: Start difference. First operand has 32 places, 22 transitions, 53 flow. Second operand 4 states and 364 transitions. [2021-03-26 00:33:53,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 31 transitions, 107 flow [2021-03-26 00:33:53,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 31 transitions, 104 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 00:33:53,311 INFO L241 Difference]: Finished difference. Result has 35 places, 27 transitions, 102 flow [2021-03-26 00:33:53,312 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=102, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2021-03-26 00:33:53,312 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2021-03-26 00:33:53,312 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:33:53,312 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 27 transitions, 102 flow [2021-03-26 00:33:53,313 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 27 transitions, 102 flow [2021-03-26 00:33:53,313 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 27 transitions, 102 flow [2021-03-26 00:33:53,325 INFO L129 PetriNetUnfolder]: 70/178 cut-off events. [2021-03-26 00:33:53,325 INFO L130 PetriNetUnfolder]: For 48/58 co-relation queries the response was YES. [2021-03-26 00:33:53,325 INFO L84 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 178 events. 70/178 cut-off events. For 48/58 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 813 event pairs, 22 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 394. Up to 75 conditions per place. [2021-03-26 00:33:53,327 INFO L142 LiptonReduction]: Number of co-enabled transitions 196 [2021-03-26 00:33:53,734 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-26 00:33:53,918 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-26 00:33:53,967 INFO L154 LiptonReduction]: Checked pairs total: 139 [2021-03-26 00:33:53,967 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 00:33:53,968 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 656 [2021-03-26 00:33:53,969 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 92 flow [2021-03-26 00:33:53,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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 00:33:53,969 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:33:53,969 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:33:53,969 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:33:53,970 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:33:53,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:33:53,970 INFO L82 PathProgramCache]: Analyzing trace with hash -447226827, now seen corresponding path program 1 times [2021-03-26 00:33:53,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:33:53,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38995922] [2021-03-26 00:33:53,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:33:54,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:33:54,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:33:54,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:33:54,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:33:54,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:33:54,106 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:33:54,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:33:54,115 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 00:33:54,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38995922] [2021-03-26 00:33:54,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:33:54,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:33:54,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68617729] [2021-03-26 00:33:54,117 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:33:54,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:33:54,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:33:54,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:33:54,121 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 116 [2021-03-26 00:33:54,122 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 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 00:33:54,122 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:33:54,122 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 116 [2021-03-26 00:33:54,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:33:54,158 INFO L129 PetriNetUnfolder]: 46/135 cut-off events. [2021-03-26 00:33:54,158 INFO L130 PetriNetUnfolder]: For 86/166 co-relation queries the response was YES. [2021-03-26 00:33:54,160 INFO L84 FinitePrefix]: Finished finitePrefix Result has 403 conditions, 135 events. 46/135 cut-off events. For 86/166 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 573 event pairs, 5 based on Foata normal form. 6/137 useless extension candidates. Maximal degree in co-relation 391. Up to 51 conditions per place. [2021-03-26 00:33:54,161 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 14 selfloop transitions, 13 changer transitions 0/36 dead transitions. [2021-03-26 00:33:54,161 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 36 transitions, 216 flow [2021-03-26 00:33:54,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:33:54,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:33:54,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2021-03-26 00:33:54,164 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7952586206896551 [2021-03-26 00:33:54,164 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 369 transitions. [2021-03-26 00:33:54,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 369 transitions. [2021-03-26 00:33:54,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:33:54,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 369 transitions. [2021-03-26 00:33:54,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:33:54,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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 00:33:54,168 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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 00:33:54,168 INFO L185 Difference]: Start difference. First operand has 30 places, 22 transitions, 92 flow. Second operand 4 states and 369 transitions. [2021-03-26 00:33:54,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 36 transitions, 216 flow [2021-03-26 00:33:54,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 36 transitions, 212 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 00:33:54,171 INFO L241 Difference]: Finished difference. Result has 35 places, 32 transitions, 207 flow [2021-03-26 00:33:54,171 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=207, PETRI_PLACES=35, PETRI_TRANSITIONS=32} [2021-03-26 00:33:54,171 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2021-03-26 00:33:54,171 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:33:54,172 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 32 transitions, 207 flow [2021-03-26 00:33:54,172 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 32 transitions, 207 flow [2021-03-26 00:33:54,173 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 32 transitions, 207 flow [2021-03-26 00:33:54,182 INFO L129 PetriNetUnfolder]: 46/132 cut-off events. [2021-03-26 00:33:54,182 INFO L130 PetriNetUnfolder]: For 184/195 co-relation queries the response was YES. [2021-03-26 00:33:54,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 429 conditions, 132 events. 46/132 cut-off events. For 184/195 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 590 event pairs, 5 based on Foata normal form. 1/129 useless extension candidates. Maximal degree in co-relation 415. Up to 55 conditions per place. [2021-03-26 00:33:54,185 INFO L142 LiptonReduction]: Number of co-enabled transitions 182 [2021-03-26 00:33:54,188 INFO L154 LiptonReduction]: Checked pairs total: 71 [2021-03-26 00:33:54,189 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:33:54,189 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-26 00:33:54,190 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 32 transitions, 207 flow [2021-03-26 00:33:54,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 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 00:33:54,191 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:33:54,191 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:33:54,191 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:33:54,191 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:33:54,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:33:54,192 INFO L82 PathProgramCache]: Analyzing trace with hash -428118102, now seen corresponding path program 1 times [2021-03-26 00:33:54,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:33:54,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400685919] [2021-03-26 00:33:54,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:33:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:33:54,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:33:54,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:33:54,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:33:54,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:33:54,248 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:33:54,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:33:54,257 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 00:33:54,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400685919] [2021-03-26 00:33:54,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:33:54,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:33:54,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552066801] [2021-03-26 00:33:54,258 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:33:54,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:33:54,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:33:54,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:33:54,260 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 116 [2021-03-26 00:33:54,261 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 32 transitions, 207 flow. Second operand has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 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 00:33:54,261 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:33:54,261 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 116 [2021-03-26 00:33:54,261 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:33:54,294 INFO L129 PetriNetUnfolder]: 38/125 cut-off events. [2021-03-26 00:33:54,294 INFO L130 PetriNetUnfolder]: For 185/275 co-relation queries the response was YES. [2021-03-26 00:33:54,295 INFO L84 FinitePrefix]: Finished finitePrefix Result has 481 conditions, 125 events. 38/125 cut-off events. For 185/275 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 534 event pairs, 5 based on Foata normal form. 10/131 useless extension candidates. Maximal degree in co-relation 465. Up to 44 conditions per place. [2021-03-26 00:33:54,295 INFO L132 encePairwiseOnDemand]: 109/116 looper letters, 11 selfloop transitions, 9 changer transitions 14/43 dead transitions. [2021-03-26 00:33:54,295 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 43 transitions, 348 flow [2021-03-26 00:33:54,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:33:54,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:33:54,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 456 transitions. [2021-03-26 00:33:54,297 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7862068965517242 [2021-03-26 00:33:54,297 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 456 transitions. [2021-03-26 00:33:54,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 456 transitions. [2021-03-26 00:33:54,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:33:54,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 456 transitions. [2021-03-26 00:33:54,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 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 00:33:54,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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 00:33:54,299 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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 00:33:54,299 INFO L185 Difference]: Start difference. First operand has 35 places, 32 transitions, 207 flow. Second operand 5 states and 456 transitions. [2021-03-26 00:33:54,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 43 transitions, 348 flow [2021-03-26 00:33:54,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 43 transitions, 348 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 00:33:54,302 INFO L241 Difference]: Finished difference. Result has 42 places, 27 transitions, 205 flow [2021-03-26 00:33:54,302 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=205, PETRI_PLACES=42, PETRI_TRANSITIONS=27} [2021-03-26 00:33:54,303 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 10 predicate places. [2021-03-26 00:33:54,303 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:33:54,303 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 27 transitions, 205 flow [2021-03-26 00:33:54,303 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 27 transitions, 205 flow [2021-03-26 00:33:54,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 27 transitions, 205 flow [2021-03-26 00:33:54,307 INFO L129 PetriNetUnfolder]: 10/50 cut-off events. [2021-03-26 00:33:54,307 INFO L130 PetriNetUnfolder]: For 135/139 co-relation queries the response was YES. [2021-03-26 00:33:54,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 50 events. 10/50 cut-off events. For 135/139 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 139 event pairs, 1 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 182. Up to 18 conditions per place. [2021-03-26 00:33:54,308 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-26 00:33:54,317 INFO L154 LiptonReduction]: Checked pairs total: 57 [2021-03-26 00:33:54,317 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:33:54,317 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-26 00:33:54,318 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 27 transitions, 205 flow [2021-03-26 00:33:54,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 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 00:33:54,318 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:33:54,318 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:33:54,319 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:33:54,319 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:33:54,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:33:54,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1897312236, now seen corresponding path program 1 times [2021-03-26 00:33:54,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:33:54,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221623718] [2021-03-26 00:33:54,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:33:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:33:54,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:33:54,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:33:54,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:33:54,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:33:54,345 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:33:54,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:33:54,353 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 00:33:54,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221623718] [2021-03-26 00:33:54,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:33:54,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:33:54,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982172128] [2021-03-26 00:33:54,353 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:33:54,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:33:54,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:33:54,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:33:54,356 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 116 [2021-03-26 00:33:54,357 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 27 transitions, 205 flow. Second operand has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 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 00:33:54,357 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:33:54,357 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 116 [2021-03-26 00:33:54,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:33:54,383 INFO L129 PetriNetUnfolder]: 9/47 cut-off events. [2021-03-26 00:33:54,383 INFO L130 PetriNetUnfolder]: For 153/227 co-relation queries the response was YES. [2021-03-26 00:33:54,383 INFO L84 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 47 events. 9/47 cut-off events. For 153/227 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 116 event pairs, 0 based on Foata normal form. 7/54 useless extension candidates. Maximal degree in co-relation 195. Up to 17 conditions per place. [2021-03-26 00:33:54,384 INFO L132 encePairwiseOnDemand]: 109/116 looper letters, 10 selfloop transitions, 12 changer transitions 0/31 dead transitions. [2021-03-26 00:33:54,384 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 31 transitions, 285 flow [2021-03-26 00:33:54,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:33:54,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:33:54,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 362 transitions. [2021-03-26 00:33:54,386 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7801724137931034 [2021-03-26 00:33:54,386 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 362 transitions. [2021-03-26 00:33:54,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 362 transitions. [2021-03-26 00:33:54,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:33:54,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 362 transitions. [2021-03-26 00:33:54,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 90.5) internal successors, (362), 4 states have internal predecessors, (362), 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 00:33:54,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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 00:33:54,388 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 116.0) internal successors, (580), 5 states have internal predecessors, (580), 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 00:33:54,388 INFO L185 Difference]: Start difference. First operand has 42 places, 27 transitions, 205 flow. Second operand 4 states and 362 transitions. [2021-03-26 00:33:54,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 31 transitions, 285 flow [2021-03-26 00:33:54,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 31 transitions, 277 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 00:33:54,393 INFO L241 Difference]: Finished difference. Result has 46 places, 31 transitions, 289 flow [2021-03-26 00:33:54,393 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=289, PETRI_PLACES=46, PETRI_TRANSITIONS=31} [2021-03-26 00:33:54,393 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 14 predicate places. [2021-03-26 00:33:54,393 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:33:54,393 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 31 transitions, 289 flow [2021-03-26 00:33:54,393 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 31 transitions, 289 flow [2021-03-26 00:33:54,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 31 transitions, 289 flow [2021-03-26 00:33:54,401 INFO L129 PetriNetUnfolder]: 9/48 cut-off events. [2021-03-26 00:33:54,401 INFO L130 PetriNetUnfolder]: For 158/161 co-relation queries the response was YES. [2021-03-26 00:33:54,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 48 events. 9/48 cut-off events. For 158/161 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 136 event pairs, 0 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 202. Up to 17 conditions per place. [2021-03-26 00:33:54,402 INFO L142 LiptonReduction]: Number of co-enabled transitions 164 [2021-03-26 00:33:54,405 INFO L154 LiptonReduction]: Checked pairs total: 141 [2021-03-26 00:33:54,405 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:33:54,405 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-26 00:33:54,407 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 31 transitions, 289 flow [2021-03-26 00:33:54,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 88.5) internal successors, (354), 4 states have internal predecessors, (354), 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 00:33:54,407 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:33:54,407 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:33:54,407 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:33:54,408 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:33:54,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:33:54,408 INFO L82 PathProgramCache]: Analyzing trace with hash 615712014, now seen corresponding path program 1 times [2021-03-26 00:33:54,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:33:54,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436397295] [2021-03-26 00:33:54,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:33:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:33:54,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:33:54,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:33:54,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:33:54,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:33:54,480 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:33:54,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:33:54,493 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 00:33:54,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436397295] [2021-03-26 00:33:54,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:33:54,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:33:54,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030145581] [2021-03-26 00:33:54,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:33:54,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:33:54,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:33:54,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:33:54,503 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 116 [2021-03-26 00:33:54,504 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 31 transitions, 289 flow. Second operand has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 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 00:33:54,504 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:33:54,504 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 116 [2021-03-26 00:33:54,504 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:33:54,545 INFO L129 PetriNetUnfolder]: 8/56 cut-off events. [2021-03-26 00:33:54,545 INFO L130 PetriNetUnfolder]: For 262/345 co-relation queries the response was YES. [2021-03-26 00:33:54,545 INFO L84 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 56 events. 8/56 cut-off events. For 262/345 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 177 event pairs, 0 based on Foata normal form. 6/62 useless extension candidates. Maximal degree in co-relation 273. Up to 20 conditions per place. [2021-03-26 00:33:54,545 INFO L132 encePairwiseOnDemand]: 109/116 looper letters, 7 selfloop transitions, 10 changer transitions 10/36 dead transitions. [2021-03-26 00:33:54,546 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 36 transitions, 400 flow [2021-03-26 00:33:54,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:33:54,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:33:54,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 452 transitions. [2021-03-26 00:33:54,550 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7793103448275862 [2021-03-26 00:33:54,550 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 452 transitions. [2021-03-26 00:33:54,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 452 transitions. [2021-03-26 00:33:54,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:33:54,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 452 transitions. [2021-03-26 00:33:54,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.4) internal successors, (452), 5 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 00:33:54,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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 00:33:54,553 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 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 00:33:54,553 INFO L185 Difference]: Start difference. First operand has 46 places, 31 transitions, 289 flow. Second operand 5 states and 452 transitions. [2021-03-26 00:33:54,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 36 transitions, 400 flow [2021-03-26 00:33:54,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 36 transitions, 383 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-26 00:33:54,555 INFO L241 Difference]: Finished difference. Result has 49 places, 25 transitions, 237 flow [2021-03-26 00:33:54,555 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=237, PETRI_PLACES=49, PETRI_TRANSITIONS=25} [2021-03-26 00:33:54,555 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 17 predicate places. [2021-03-26 00:33:54,556 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:33:54,556 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 25 transitions, 237 flow [2021-03-26 00:33:54,556 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 25 transitions, 237 flow [2021-03-26 00:33:54,556 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 25 transitions, 237 flow [2021-03-26 00:33:54,564 INFO L129 PetriNetUnfolder]: 4/34 cut-off events. [2021-03-26 00:33:54,564 INFO L130 PetriNetUnfolder]: For 132/132 co-relation queries the response was YES. [2021-03-26 00:33:54,564 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 34 events. 4/34 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 72 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 148. Up to 10 conditions per place. [2021-03-26 00:33:54,565 INFO L142 LiptonReduction]: Number of co-enabled transitions 102 [2021-03-26 00:33:54,588 INFO L154 LiptonReduction]: Checked pairs total: 126 [2021-03-26 00:33:54,588 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:33:54,588 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-03-26 00:33:54,591 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 24 transitions, 233 flow [2021-03-26 00:33:54,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 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 00:33:54,591 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:33:54,592 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:33:54,592 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:33:54,592 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:33:54,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:33:54,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1736390920, now seen corresponding path program 2 times [2021-03-26 00:33:54,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:33:54,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526040138] [2021-03-26 00:33:54,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:33:54,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:33:54,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:33:54,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:33:54,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:33:54,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:33:54,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:33:54,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:33:54,643 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:33:54,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:33:54,652 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 00:33:54,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526040138] [2021-03-26 00:33:54,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:33:54,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:33:54,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565577887] [2021-03-26 00:33:54,653 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:33:54,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:33:54,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:33:54,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:33:54,654 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 117 [2021-03-26 00:33:54,654 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 24 transitions, 233 flow. Second operand has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 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 00:33:54,654 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:33:54,655 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 117 [2021-03-26 00:33:54,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:33:54,678 INFO L129 PetriNetUnfolder]: 3/34 cut-off events. [2021-03-26 00:33:54,678 INFO L130 PetriNetUnfolder]: For 182/191 co-relation queries the response was YES. [2021-03-26 00:33:54,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 34 events. 3/34 cut-off events. For 182/191 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 77 event pairs, 0 based on Foata normal form. 6/40 useless extension candidates. Maximal degree in co-relation 169. Up to 11 conditions per place. [2021-03-26 00:33:54,679 INFO L132 encePairwiseOnDemand]: 111/117 looper letters, 3 selfloop transitions, 4 changer transitions 10/26 dead transitions. [2021-03-26 00:33:54,679 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 26 transitions, 294 flow [2021-03-26 00:33:54,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:33:54,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:33:54,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 535 transitions. [2021-03-26 00:33:54,680 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7621082621082621 [2021-03-26 00:33:54,681 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 535 transitions. [2021-03-26 00:33:54,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 535 transitions. [2021-03-26 00:33:54,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:33:54,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 535 transitions. [2021-03-26 00:33:54,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.16666666666667) internal successors, (535), 6 states have internal predecessors, (535), 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 00:33:54,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 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 00:33:54,683 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 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 00:33:54,683 INFO L185 Difference]: Start difference. First operand has 48 places, 24 transitions, 233 flow. Second operand 6 states and 535 transitions. [2021-03-26 00:33:54,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 26 transitions, 294 flow [2021-03-26 00:33:54,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 26 transitions, 236 flow, removed 6 selfloop flow, removed 9 redundant places. [2021-03-26 00:33:54,685 INFO L241 Difference]: Finished difference. Result has 45 places, 16 transitions, 101 flow [2021-03-26 00:33:54,685 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=101, PETRI_PLACES=45, PETRI_TRANSITIONS=16} [2021-03-26 00:33:54,685 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 13 predicate places. [2021-03-26 00:33:54,685 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:33:54,686 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 16 transitions, 101 flow [2021-03-26 00:33:54,686 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 16 transitions, 101 flow [2021-03-26 00:33:54,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 16 transitions, 101 flow [2021-03-26 00:33:54,691 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-26 00:33:54,691 INFO L130 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2021-03-26 00:33:54,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 18 events. 0/18 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-26 00:33:54,692 INFO L142 LiptonReduction]: Number of co-enabled transitions 46 [2021-03-26 00:33:54,735 INFO L154 LiptonReduction]: Checked pairs total: 42 [2021-03-26 00:33:54,735 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 00:33:54,735 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-03-26 00:33:54,739 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 14 transitions, 95 flow [2021-03-26 00:33:54,739 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 88.4) internal successors, (442), 5 states have internal predecessors, (442), 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 00:33:54,739 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:33:54,739 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:33:54,739 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:33:54,739 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:33:54,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:33:54,740 INFO L82 PathProgramCache]: Analyzing trace with hash -318059926, now seen corresponding path program 1 times [2021-03-26 00:33:54,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:33:54,740 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844586324] [2021-03-26 00:33:54,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:33:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:33:54,787 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-26 00:33:54,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 00:33:54,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:33:54,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:33:54,798 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 00:33:54,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844586324] [2021-03-26 00:33:54,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:33:54,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:33:54,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772026526] [2021-03-26 00:33:54,802 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:33:54,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:33:54,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:33:54,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:33:54,803 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 119 [2021-03-26 00:33:54,804 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 14 transitions, 95 flow. Second operand has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 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 00:33:54,804 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:33:54,804 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 119 [2021-03-26 00:33:54,804 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:33:54,834 INFO L129 PetriNetUnfolder]: 23/60 cut-off events. [2021-03-26 00:33:54,835 INFO L130 PetriNetUnfolder]: For 553/569 co-relation queries the response was YES. [2021-03-26 00:33:54,835 INFO L84 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 60 events. 23/60 cut-off events. For 553/569 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 188 event pairs, 9 based on Foata normal form. 5/64 useless extension candidates. Maximal degree in co-relation 239. Up to 39 conditions per place. [2021-03-26 00:33:54,835 INFO L132 encePairwiseOnDemand]: 113/119 looper letters, 5 selfloop transitions, 3 changer transitions 8/24 dead transitions. [2021-03-26 00:33:54,835 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 24 transitions, 192 flow [2021-03-26 00:33:54,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:33:54,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:33:54,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 473 transitions. [2021-03-26 00:33:54,837 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7949579831932773 [2021-03-26 00:33:54,837 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 473 transitions. [2021-03-26 00:33:54,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 473 transitions. [2021-03-26 00:33:54,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:33:54,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 473 transitions. [2021-03-26 00:33:54,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.6) internal successors, (473), 5 states have internal predecessors, (473), 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 00:33:54,841 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 00:33:54,841 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 00:33:54,841 INFO L185 Difference]: Start difference. First operand has 41 places, 14 transitions, 95 flow. Second operand 5 states and 473 transitions. [2021-03-26 00:33:54,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 24 transitions, 192 flow [2021-03-26 00:33:54,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 24 transitions, 120 flow, removed 5 selfloop flow, removed 13 redundant places. [2021-03-26 00:33:54,843 INFO L241 Difference]: Finished difference. Result has 35 places, 16 transitions, 84 flow [2021-03-26 00:33:54,843 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=84, PETRI_PLACES=35, PETRI_TRANSITIONS=16} [2021-03-26 00:33:54,843 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2021-03-26 00:33:54,843 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:33:54,844 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 16 transitions, 84 flow [2021-03-26 00:33:54,844 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 16 transitions, 84 flow [2021-03-26 00:33:54,844 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 16 transitions, 84 flow [2021-03-26 00:33:54,847 INFO L129 PetriNetUnfolder]: 14/41 cut-off events. [2021-03-26 00:33:54,847 INFO L130 PetriNetUnfolder]: For 83/88 co-relation queries the response was YES. [2021-03-26 00:33:54,848 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 41 events. 14/41 cut-off events. For 83/88 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 98 event pairs, 8 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 139. Up to 30 conditions per place. [2021-03-26 00:33:54,848 INFO L142 LiptonReduction]: Number of co-enabled transitions 22 [2021-03-26 00:33:54,914 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-26 00:33:54,915 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:33:54,915 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 72 [2021-03-26 00:33:54,915 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 16 transitions, 87 flow [2021-03-26 00:33:54,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 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 00:33:54,915 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:33:54,915 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:33:54,916 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 00:33:54,916 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:33:54,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:33:54,916 INFO L82 PathProgramCache]: Analyzing trace with hash 615791760, now seen corresponding path program 1 times [2021-03-26 00:33:54,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:33:54,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005879272] [2021-03-26 00:33:54,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:33:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:33:54,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:33:54,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:33:54,946 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-26 00:33:54,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 00:33:54,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:33:54,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:33:54,955 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 00:33:54,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005879272] [2021-03-26 00:33:54,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:33:54,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:33:54,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807304572] [2021-03-26 00:33:54,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:33:54,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:33:54,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:33:54,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:33:54,956 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 120 [2021-03-26 00:33:54,957 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 16 transitions, 87 flow. Second operand has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 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 00:33:54,957 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:33:54,957 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 120 [2021-03-26 00:33:54,957 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:33:54,987 INFO L129 PetriNetUnfolder]: 9/38 cut-off events. [2021-03-26 00:33:54,987 INFO L130 PetriNetUnfolder]: For 113/134 co-relation queries the response was YES. [2021-03-26 00:33:54,987 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 38 events. 9/38 cut-off events. For 113/134 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 82 event pairs, 1 based on Foata normal form. 6/43 useless extension candidates. Maximal degree in co-relation 151. Up to 27 conditions per place. [2021-03-26 00:33:54,987 INFO L132 encePairwiseOnDemand]: 113/120 looper letters, 3 selfloop transitions, 5 changer transitions 10/26 dead transitions. [2021-03-26 00:33:54,987 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 26 transitions, 196 flow [2021-03-26 00:33:54,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:33:54,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:33:54,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 566 transitions. [2021-03-26 00:33:54,989 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7861111111111111 [2021-03-26 00:33:54,989 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 566 transitions. [2021-03-26 00:33:54,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 566 transitions. [2021-03-26 00:33:54,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:33:54,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 566 transitions. [2021-03-26 00:33:54,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.33333333333333) internal successors, (566), 6 states have internal predecessors, (566), 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 00:33:54,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 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 00:33:54,991 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 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 00:33:54,991 INFO L185 Difference]: Start difference. First operand has 33 places, 16 transitions, 87 flow. Second operand 6 states and 566 transitions. [2021-03-26 00:33:54,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 26 transitions, 196 flow [2021-03-26 00:33:54,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 26 transitions, 185 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-03-26 00:33:54,992 INFO L241 Difference]: Finished difference. Result has 38 places, 16 transitions, 103 flow [2021-03-26 00:33:54,992 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=103, PETRI_PLACES=38, PETRI_TRANSITIONS=16} [2021-03-26 00:33:54,992 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 6 predicate places. [2021-03-26 00:33:54,992 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:33:54,992 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 16 transitions, 103 flow [2021-03-26 00:33:54,992 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 16 transitions, 103 flow [2021-03-26 00:33:54,992 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 16 transitions, 103 flow [2021-03-26 00:33:54,995 INFO L129 PetriNetUnfolder]: 2/21 cut-off events. [2021-03-26 00:33:54,995 INFO L130 PetriNetUnfolder]: For 56/59 co-relation queries the response was YES. [2021-03-26 00:33:54,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 21 events. 2/21 cut-off events. For 56/59 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 20 event pairs, 1 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 72. Up to 10 conditions per place. [2021-03-26 00:33:54,996 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-26 00:33:55,105 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-26 00:33:55,105 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 00:33:55,106 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 114 [2021-03-26 00:33:55,106 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 15 transitions, 103 flow [2021-03-26 00:33:55,106 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 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 00:33:55,106 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:33:55,106 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:33:55,106 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 00:33:55,107 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:33:55,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:33:55,107 INFO L82 PathProgramCache]: Analyzing trace with hash 644594158, now seen corresponding path program 1 times [2021-03-26 00:33:55,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:33:55,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846571685] [2021-03-26 00:33:55,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:33:55,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:33:55,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:33:55,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:33:55,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:33:55,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:33:55,134 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-26 00:33:55,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 00:33:55,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:33:55,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:33:55,142 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 00:33:55,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846571685] [2021-03-26 00:33:55,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:33:55,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:33:55,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84167990] [2021-03-26 00:33:55,143 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:33:55,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:33:55,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:33:55,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:33:55,144 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 122 [2021-03-26 00:33:55,144 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 15 transitions, 103 flow. Second operand has 6 states, 6 states have (on average 91.83333333333333) internal successors, (551), 6 states have internal predecessors, (551), 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 00:33:55,144 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:33:55,144 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 122 [2021-03-26 00:33:55,144 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:33:55,158 INFO L129 PetriNetUnfolder]: 1/17 cut-off events. [2021-03-26 00:33:55,158 INFO L130 PetriNetUnfolder]: For 47/50 co-relation queries the response was YES. [2021-03-26 00:33:55,158 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 17 events. 1/17 cut-off events. For 47/50 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 19 event pairs, 0 based on Foata normal form. 2/18 useless extension candidates. Maximal degree in co-relation 61. Up to 7 conditions per place. [2021-03-26 00:33:55,159 INFO L132 encePairwiseOnDemand]: 115/122 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2021-03-26 00:33:55,159 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 14 transitions, 99 flow [2021-03-26 00:33:55,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:33:55,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:33:55,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 462 transitions. [2021-03-26 00:33:55,160 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7573770491803279 [2021-03-26 00:33:55,160 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 462 transitions. [2021-03-26 00:33:55,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 462 transitions. [2021-03-26 00:33:55,160 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:33:55,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 462 transitions. [2021-03-26 00:33:55,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 92.4) internal successors, (462), 5 states have internal predecessors, (462), 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 00:33:55,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 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 00:33:55,162 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 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 00:33:55,162 INFO L185 Difference]: Start difference. First operand has 35 places, 15 transitions, 103 flow. Second operand 5 states and 462 transitions. [2021-03-26 00:33:55,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 14 transitions, 99 flow [2021-03-26 00:33:55,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 14 transitions, 78 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-26 00:33:55,162 INFO L241 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2021-03-26 00:33:55,162 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2021-03-26 00:33:55,162 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 0 predicate places. [2021-03-26 00:33:55,163 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:33:55,163 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 0 transitions, 0 flow [2021-03-26 00:33:55,163 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 0 transitions, 0 flow [2021-03-26 00:33:55,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 00:33:55,163 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 00:33:55,163 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:33:55,163 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 00:33:55,163 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 00:33:55,163 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:33:55,163 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:33:55,163 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 0 [2021-03-26 00:33:55,164 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 00:33:55,164 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 91.83333333333333) internal successors, (551), 6 states have internal predecessors, (551), 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 00:33:55,164 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 00:33:55,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:33:55 BasicIcfg [2021-03-26 00:33:55,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:33:55,167 INFO L168 Benchmark]: Toolchain (without parser) took 4134.79 ms. Allocated memory was 255.9 MB in the beginning and 511.7 MB in the end (delta: 255.9 MB). Free memory was 234.6 MB in the beginning and 431.3 MB in the end (delta: -196.8 MB). Peak memory consumption was 57.6 MB. Max. memory is 16.0 GB. [2021-03-26 00:33:55,167 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:33:55,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 371.58 ms. Allocated memory was 255.9 MB in the beginning and 388.0 MB in the end (delta: 132.1 MB). Free memory was 234.6 MB in the beginning and 350.4 MB in the end (delta: -115.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-03-26 00:33:55,168 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.30 ms. Allocated memory is still 388.0 MB. Free memory was 350.4 MB in the beginning and 348.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:33:55,168 INFO L168 Benchmark]: Boogie Preprocessor took 29.99 ms. Allocated memory is still 388.0 MB. Free memory was 348.2 MB in the beginning and 346.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:33:55,168 INFO L168 Benchmark]: RCFGBuilder took 321.06 ms. Allocated memory is still 388.0 MB. Free memory was 346.8 MB in the beginning and 324.5 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:33:55,168 INFO L168 Benchmark]: TraceAbstraction took 3363.34 ms. Allocated memory was 388.0 MB in the beginning and 511.7 MB in the end (delta: 123.7 MB). Free memory was 324.5 MB in the beginning and 431.3 MB in the end (delta: -106.9 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.0 GB. [2021-03-26 00:33:55,170 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 371.58 ms. Allocated memory was 255.9 MB in the beginning and 388.0 MB in the end (delta: 132.1 MB). Free memory was 234.6 MB in the beginning and 350.4 MB in the end (delta: -115.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 45.30 ms. Allocated memory is still 388.0 MB. Free memory was 350.4 MB in the beginning and 348.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.99 ms. Allocated memory is still 388.0 MB. Free memory was 348.2 MB in the beginning and 346.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 321.06 ms. Allocated memory is still 388.0 MB. Free memory was 346.8 MB in the beginning and 324.5 MB in the end (delta: 22.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3363.34 ms. Allocated memory was 388.0 MB in the beginning and 511.7 MB in the end (delta: 123.7 MB). Free memory was 324.5 MB in the beginning and 431.3 MB in the end (delta: -106.9 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1093.7ms, 68 PlacesBefore, 32 PlacesAfterwards, 59 TransitionsBefore, 22 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 37 TotalNumberOfCompositions, 996 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 597, positive: 564, positive conditional: 564, positive unconditional: 0, negative: 33, negative conditional: 33, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 524, positive: 499, positive conditional: 0, positive unconditional: 499, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 524, positive: 499, positive conditional: 0, positive unconditional: 499, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 524, positive: 492, positive conditional: 0, positive unconditional: 492, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 32, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 89, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 70, negative conditional: 0, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 597, positive: 65, positive conditional: 65, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 524, unknown conditional: 524, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 19, Positive cache size: 13, Positive conditional cache size: 13, Positive unconditional cache size: 0, Negative cache size: 6, Negative conditional cache size: 6, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 654.7ms, 35 PlacesBefore, 30 PlacesAfterwards, 27 TransitionsBefore, 22 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 139 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 73, positive: 65, positive conditional: 65, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 54, positive: 49, positive conditional: 12, positive unconditional: 37, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 54, positive: 49, positive conditional: 12, positive unconditional: 37, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 54, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 5, negative conditional: 1, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 22, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 15, negative conditional: 5, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 73, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 54, unknown conditional: 54, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 33, Positive cache size: 26, Positive conditional cache size: 26, Positive unconditional cache size: 0, Negative cache size: 7, Negative conditional cache size: 7, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.2ms, 35 PlacesBefore, 35 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 182 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 71 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 45, positive: 40, positive conditional: 40, 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: 14, positive: 14, positive conditional: 5, positive unconditional: 9, 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: 14, positive: 14, positive conditional: 5, positive unconditional: 9, 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: 14, positive: 14, positive conditional: 0, positive unconditional: 14, 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: 45, positive: 26, positive conditional: 26, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 40, Positive conditional cache size: 40, Positive unconditional cache size: 0, Negative cache size: 7, Negative conditional cache size: 7, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.9ms, 42 PlacesBefore, 42 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 57 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 27, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 2, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 7, positive conditional: 2, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 27, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 55, Positive cache size: 47, Positive conditional cache size: 47, 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: 11.7ms, 46 PlacesBefore, 46 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 164 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 141 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 81, positive: 71, positive conditional: 71, 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: 22, positive: 22, positive conditional: 11, positive unconditional: 11, 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: 22, positive: 22, positive conditional: 11, positive unconditional: 11, 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: 22, positive: 22, positive conditional: 0, positive unconditional: 22, 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: 81, positive: 49, positive conditional: 49, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 22, unknown conditional: 22, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 77, Positive cache size: 69, Positive conditional cache size: 69, 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: 32.3ms, 49 PlacesBefore, 48 PlacesAfterwards, 25 TransitionsBefore, 24 TransitionsAfterwards, 102 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 126 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 49, positive: 36, positive conditional: 36, 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: 16, positive: 16, positive conditional: 10, positive unconditional: 6, 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: 16, positive: 16, positive conditional: 10, positive unconditional: 6, 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: 16, positive: 16, positive conditional: 0, positive unconditional: 16, 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: 49, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 16, unknown conditional: 16, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 63, Positive conditional cache size: 63, Positive unconditional cache size: 0, Negative cache size: 4, Negative conditional cache size: 4, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.5ms, 45 PlacesBefore, 41 PlacesAfterwards, 16 TransitionsBefore, 14 TransitionsAfterwards, 46 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 42 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20, positive: 15, positive conditional: 15, 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: 8, positive: 8, positive conditional: 5, 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: 8, positive: 8, positive conditional: 5, 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: 8, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 20, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 21, Positive conditional cache size: 21, 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: 70.8ms, 35 PlacesBefore, 33 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 22 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 10, Positive cache size: 9, Positive conditional cache size: 9, 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: 113.2ms, 38 PlacesBefore, 35 PlacesAfterwards, 16 TransitionsBefore, 15 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , 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: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 1, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.5ms, 32 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 1, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, 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: 3.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3300.3ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 383.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1197.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 55 SDtfs, 44 SDslu, 36 SDs, 0 SdLazy, 146 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 106.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 112.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=289occurred in iteration=4, InterpolantAutomatonStates: 44, 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: 18.2ms SsaConstructionTime, 130.1ms SatisfiabilityAnalysisTime, 432.1ms InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 543 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...