/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 06:59:22,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 06:59:22,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 06:59:22,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 06:59:22,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 06:59:22,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 06:59:22,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 06:59:22,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 06:59:22,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 06:59:22,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 06:59:22,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 06:59:22,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 06:59:22,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 06:59:22,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 06:59:22,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 06:59:22,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 06:59:22,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 06:59:22,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 06:59:22,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 06:59:22,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 06:59:22,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 06:59:22,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 06:59:22,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 06:59:22,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 06:59:22,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 06:59:22,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 06:59:22,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 06:59:22,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 06:59:22,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 06:59:22,290 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 06:59:22,290 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 06:59:22,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 06:59:22,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 06:59:22,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 06:59:22,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 06:59:22,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 06:59:22,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 06:59:22,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 06:59:22,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 06:59:22,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 06:59:22,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 06:59:22,298 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-RepeatedSemanticLbe.epf [2021-06-11 06:59:22,320 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 06:59:22,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 06:59:22,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 06:59:22,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 06:59:22,325 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 06:59:22,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 06:59:22,325 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 06:59:22,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 06:59:22,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 06:59:22,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 06:59:22,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 06:59:22,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 06:59:22,326 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 06:59:22,326 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 06:59:22,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 06:59:22,326 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 06:59:22,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 06:59:22,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 06:59:22,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 06:59:22,326 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 06:59:22,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 06:59:22,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 06:59:22,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 06:59:22,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 06:59:22,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 06:59:22,327 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 06:59:22,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 06:59:22,327 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 06:59:22,327 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 06:59:22,327 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 06:59:22,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 06:59:22,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 06:59:22,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 06:59:22,554 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 06:59:22,554 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 06:59:22,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2021-06-11 06:59:22,596 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82e299ea5/75188e6f63934cb881c83a786d262a14/FLAG3d802c175 [2021-06-11 06:59:22,972 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 06:59:22,973 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2021-06-11 06:59:22,985 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82e299ea5/75188e6f63934cb881c83a786d262a14/FLAG3d802c175 [2021-06-11 06:59:23,364 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82e299ea5/75188e6f63934cb881c83a786d262a14 [2021-06-11 06:59:23,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 06:59:23,370 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 06:59:23,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 06:59:23,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 06:59:23,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 06:59:23,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 06:59:23" (1/1) ... [2021-06-11 06:59:23,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17580795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:59:23, skipping insertion in model container [2021-06-11 06:59:23,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 06:59:23" (1/1) ... [2021-06-11 06:59:23,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 06:59:23,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 06:59:23,512 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/safe030_tso.oepc.i[950,963] [2021-06-11 06:59:23,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 06:59:23,669 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 06:59:23,678 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/safe030_tso.oepc.i[950,963] [2021-06-11 06:59:23,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 06:59:23,757 INFO L208 MainTranslator]: Completed translation [2021-06-11 06:59:23,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:59:23 WrapperNode [2021-06-11 06:59:23,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 06:59:23,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 06:59:23,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 06:59:23,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 06:59:23,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:59:23" (1/1) ... [2021-06-11 06:59:23,789 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:59:23" (1/1) ... [2021-06-11 06:59:23,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 06:59:23,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 06:59:23,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 06:59:23,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 06:59:23,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:59:23" (1/1) ... [2021-06-11 06:59:23,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:59:23" (1/1) ... [2021-06-11 06:59:23,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:59:23" (1/1) ... [2021-06-11 06:59:23,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:59:23" (1/1) ... [2021-06-11 06:59:23,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:59:23" (1/1) ... [2021-06-11 06:59:23,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:59:23" (1/1) ... [2021-06-11 06:59:23,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:59:23" (1/1) ... [2021-06-11 06:59:23,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 06:59:23,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 06:59:23,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 06:59:23,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 06:59:23,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:59:23" (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 [2021-06-11 06:59:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 06:59:23,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 06:59:23,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 06:59:23,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 06:59:23,896 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-11 06:59:23,897 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-11 06:59:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-11 06:59:23,897 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-11 06:59:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-11 06:59:23,897 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-11 06:59:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 06:59:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 06:59:23,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 06:59:23,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 06:59:23,898 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 06:59:24,175 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 06:59:24,175 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-11 06:59:24,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:59:24 BoogieIcfgContainer [2021-06-11 06:59:24,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 06:59:24,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 06:59:24,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 06:59:24,180 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 06:59:24,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 06:59:23" (1/3) ... [2021-06-11 06:59:24,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3d88fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 06:59:24, skipping insertion in model container [2021-06-11 06:59:24,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 06:59:23" (2/3) ... [2021-06-11 06:59:24,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3d88fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 06:59:24, skipping insertion in model container [2021-06-11 06:59:24,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 06:59:24" (3/3) ... [2021-06-11 06:59:24,181 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_tso.oepc.i [2021-06-11 06:59:24,188 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 06:59:24,191 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 06:59:24,191 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 06:59:24,220 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,220 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,221 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,221 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,221 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,221 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,221 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,221 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,222 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,222 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,222 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,222 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,223 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,223 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,223 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,223 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,224 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,224 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,224 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,224 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,224 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,224 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,225 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,225 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,225 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,226 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,226 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,226 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,226 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,227 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,227 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,227 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,228 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,231 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,231 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,231 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,231 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,235 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,235 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,236 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,236 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,238 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,238 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,238 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,238 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 06:59:24,239 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 06:59:24,252 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-11 06:59:24,275 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 06:59:24,275 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 06:59:24,275 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 06:59:24,275 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 06:59:24,275 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 06:59:24,275 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 06:59:24,276 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 06:59:24,276 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 06:59:24,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2021-06-11 06:59:24,324 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-06-11 06:59:24,325 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:59:24,330 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-06-11 06:59:24,330 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 73 transitions, 161 flow [2021-06-11 06:59:24,343 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 58 transitions, 125 flow [2021-06-11 06:59:24,344 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:59:24,357 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 58 transitions, 125 flow [2021-06-11 06:59:24,360 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 58 transitions, 125 flow [2021-06-11 06:59:24,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 58 transitions, 125 flow [2021-06-11 06:59:24,379 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-06-11 06:59:24,380 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:59:24,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 58 events. 1/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-06-11 06:59:24,382 INFO L151 LiptonReduction]: Number of co-enabled transitions 864 [2021-06-11 06:59:24,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:24,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:24,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:24,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:24,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:24,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:24,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:24,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:59:24,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:24,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:59:24,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:59:24,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:24,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:24,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:24,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:24,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:24,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:24,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:24,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:24,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:24,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:24,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:24,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:59:24,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:24,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:59:24,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:59:24,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:24,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:24,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:24,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:24,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:24,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:24,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:24,914 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:59:24,915 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:24,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:59:24,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:59:24,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:24,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:25,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:25,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:25,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:25,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:25,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:25,089 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:59:25,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:25,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 06:59:25,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:59:25,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:25,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:25,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:25,152 INFO L147 QuantifierPusher]: treesize reduction 22, result has 4.3 percent of original size 1 [2021-06-11 06:59:25,197 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-06-11 06:59:25,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:25,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:25,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:25,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:25,295 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:59:25,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:25,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:59:25,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:59:25,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:25,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:25,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:25,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:25,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:25,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:25,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:25,574 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:59:25,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:25,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:59:25,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:59:25,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:25,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:59:25,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:25,699 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:59:25,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:25,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:59:25,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:59:25,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:25,921 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:59:25,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:25,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:59:25,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 06:59:26,075 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-11 06:59:26,264 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-11 06:59:26,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:26,330 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:59:26,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:26,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:59:26,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:26,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 06:59:26,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 06:59:26,333 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:59:26,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:26,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:59:26,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:26,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 06:59:26,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 06:59:26,336 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 06:59:26,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:26,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 06:59:26,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-06-11 06:59:26,345 INFO L163 LiptonReduction]: Checked pairs total: 1792 [2021-06-11 06:59:26,345 INFO L165 LiptonReduction]: Total number of compositions: 45 [2021-06-11 06:59:26,346 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2003 [2021-06-11 06:59:26,352 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-06-11 06:59:26,352 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:59:26,352 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:59:26,352 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:59:26,353 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:59:26,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:59:26,356 INFO L82 PathProgramCache]: Analyzing trace with hash 223185157, now seen corresponding path program 1 times [2021-06-11 06:59:26,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:59:26,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924574326] [2021-06-11 06:59:26,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:59:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:59:26,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:26,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:26,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:59:26,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924574326] [2021-06-11 06:59:26,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:59:26,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:59:26,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627367253] [2021-06-11 06:59:26,455 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-11 06:59:26,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:59:26,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-11 06:59:26,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-11 06:59:26,464 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 118 [2021-06-11 06:59:26,466 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 flow. Second operand has 2 states, 2 states have (on average 111.5) internal successors, (223), 2 states have internal predecessors, (223), 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) [2021-06-11 06:59:26,466 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:59:26,466 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 118 [2021-06-11 06:59:26,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:59:26,473 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-06-11 06:59:26,473 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:59:26,473 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-11 06:59:26,474 INFO L132 encePairwiseOnDemand]: 117/118 looper letters, 0 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2021-06-11 06:59:26,474 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 17 transitions, 43 flow [2021-06-11 06:59:26,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-11 06:59:26,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-06-11 06:59:26,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 223 transitions. [2021-06-11 06:59:26,482 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9449152542372882 [2021-06-11 06:59:26,482 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 223 transitions. [2021-06-11 06:59:26,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 223 transitions. [2021-06-11 06:59:26,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:59:26,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 223 transitions. [2021-06-11 06:59:26,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 111.5) internal successors, (223), 2 states have internal predecessors, (223), 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) [2021-06-11 06:59:26,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 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) [2021-06-11 06:59:26,495 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 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) [2021-06-11 06:59:26,496 INFO L185 Difference]: Start difference. First operand has 27 places, 18 transitions, 45 flow. Second operand 2 states and 223 transitions. [2021-06-11 06:59:26,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 17 transitions, 43 flow [2021-06-11 06:59:26,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 40 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-11 06:59:26,499 INFO L241 Difference]: Finished difference. Result has 25 places, 17 transitions, 40 flow [2021-06-11 06:59:26,500 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=40, PETRI_PLACES=25, PETRI_TRANSITIONS=17} [2021-06-11 06:59:26,501 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, -2 predicate places. [2021-06-11 06:59:26,501 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:59:26,501 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 17 transitions, 40 flow [2021-06-11 06:59:26,501 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 25 places, 17 transitions, 40 flow [2021-06-11 06:59:26,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 17 transitions, 40 flow [2021-06-11 06:59:26,503 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-06-11 06:59:26,504 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:59:26,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-11 06:59:26,504 INFO L151 LiptonReduction]: Number of co-enabled transitions 126 [2021-06-11 06:59:26,505 INFO L163 LiptonReduction]: Checked pairs total: 138 [2021-06-11 06:59:26,505 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:59:26,505 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-06-11 06:59:26,506 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 17 transitions, 40 flow [2021-06-11 06:59:26,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 111.5) internal successors, (223), 2 states have internal predecessors, (223), 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) [2021-06-11 06:59:26,506 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:59:26,506 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:59:26,506 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 06:59:26,506 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:59:26,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:59:26,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1671194756, now seen corresponding path program 1 times [2021-06-11 06:59:26,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:59:26,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826979235] [2021-06-11 06:59:26,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:59:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:59:26,577 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:59:26,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:59:26,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:59:26,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826979235] [2021-06-11 06:59:26,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:59:26,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:59:26,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410709426] [2021-06-11 06:59:26,586 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 06:59:26,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:59:26,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 06:59:26,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 06:59:26,587 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 118 [2021-06-11 06:59:26,588 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 17 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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) [2021-06-11 06:59:26,588 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:59:26,588 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 118 [2021-06-11 06:59:26,588 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:59:26,640 INFO L129 PetriNetUnfolder]: 90/211 cut-off events. [2021-06-11 06:59:26,640 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:59:26,642 INFO L84 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 211 events. 90/211 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1002 event pairs, 28 based on Foata normal form. 16/219 useless extension candidates. Maximal degree in co-relation 379. Up to 85 conditions per place. [2021-06-11 06:59:26,643 INFO L132 encePairwiseOnDemand]: 110/118 looper letters, 7 selfloop transitions, 7 changer transitions 0/23 dead transitions. [2021-06-11 06:59:26,643 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 23 transitions, 80 flow [2021-06-11 06:59:26,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:59:26,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:59:26,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2021-06-11 06:59:26,647 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.788135593220339 [2021-06-11 06:59:26,648 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 279 transitions. [2021-06-11 06:59:26,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 279 transitions. [2021-06-11 06:59:26,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:59:26,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 279 transitions. [2021-06-11 06:59:26,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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) [2021-06-11 06:59:26,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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) [2021-06-11 06:59:26,651 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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) [2021-06-11 06:59:26,651 INFO L185 Difference]: Start difference. First operand has 24 places, 17 transitions, 40 flow. Second operand 3 states and 279 transitions. [2021-06-11 06:59:26,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 23 transitions, 80 flow [2021-06-11 06:59:26,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 23 transitions, 80 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 06:59:26,652 INFO L241 Difference]: Finished difference. Result has 28 places, 23 transitions, 94 flow [2021-06-11 06:59:26,652 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=28, PETRI_TRANSITIONS=23} [2021-06-11 06:59:26,655 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2021-06-11 06:59:26,655 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:59:26,655 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 23 transitions, 94 flow [2021-06-11 06:59:26,656 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 23 transitions, 94 flow [2021-06-11 06:59:26,656 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 23 transitions, 94 flow [2021-06-11 06:59:26,685 INFO L129 PetriNetUnfolder]: 90/211 cut-off events. [2021-06-11 06:59:26,686 INFO L130 PetriNetUnfolder]: For 24/28 co-relation queries the response was YES. [2021-06-11 06:59:26,687 INFO L84 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 211 events. 90/211 cut-off events. For 24/28 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1064 event pairs, 34 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 466. Up to 85 conditions per place. [2021-06-11 06:59:26,690 INFO L151 LiptonReduction]: Number of co-enabled transitions 142 [2021-06-11 06:59:26,692 INFO L163 LiptonReduction]: Checked pairs total: 15 [2021-06-11 06:59:26,692 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:59:26,692 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-06-11 06:59:26,694 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 23 transitions, 94 flow [2021-06-11 06:59:26,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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) [2021-06-11 06:59:26,694 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:59:26,694 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:59:26,694 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 06:59:26,694 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:59:26,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:59:26,695 INFO L82 PathProgramCache]: Analyzing trace with hash 2058614239, now seen corresponding path program 1 times [2021-06-11 06:59:26,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:59:26,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450542197] [2021-06-11 06:59:26,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:59:26,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:59:26,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:26,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:59:26,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:59:26,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450542197] [2021-06-11 06:59:26,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:59:26,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:59:26,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334462992] [2021-06-11 06:59:26,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 06:59:26,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:59:26,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 06:59:26,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 06:59:26,756 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 118 [2021-06-11 06:59:26,756 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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) [2021-06-11 06:59:26,757 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:59:26,757 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 118 [2021-06-11 06:59:26,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:59:26,773 INFO L129 PetriNetUnfolder]: 75/184 cut-off events. [2021-06-11 06:59:26,773 INFO L130 PetriNetUnfolder]: For 68/105 co-relation queries the response was YES. [2021-06-11 06:59:26,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 184 events. 75/184 cut-off events. For 68/105 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 857 event pairs, 19 based on Foata normal form. 4/182 useless extension candidates. Maximal degree in co-relation 457. Up to 78 conditions per place. [2021-06-11 06:59:26,774 INFO L132 encePairwiseOnDemand]: 114/118 looper letters, 5 selfloop transitions, 5 changer transitions 0/27 dead transitions. [2021-06-11 06:59:26,774 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 27 transitions, 134 flow [2021-06-11 06:59:26,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:59:26,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:59:26,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2021-06-11 06:59:26,776 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8418079096045198 [2021-06-11 06:59:26,776 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2021-06-11 06:59:26,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2021-06-11 06:59:26,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:59:26,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2021-06-11 06:59:26,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2021-06-11 06:59:26,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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) [2021-06-11 06:59:26,779 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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) [2021-06-11 06:59:26,779 INFO L185 Difference]: Start difference. First operand has 28 places, 23 transitions, 94 flow. Second operand 3 states and 298 transitions. [2021-06-11 06:59:26,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 27 transitions, 134 flow [2021-06-11 06:59:26,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 27 transitions, 116 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 06:59:26,781 INFO L241 Difference]: Finished difference. Result has 29 places, 27 transitions, 121 flow [2021-06-11 06:59:26,781 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=29, PETRI_TRANSITIONS=27} [2021-06-11 06:59:26,782 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 2 predicate places. [2021-06-11 06:59:26,782 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:59:26,782 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 27 transitions, 121 flow [2021-06-11 06:59:26,782 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 27 transitions, 121 flow [2021-06-11 06:59:26,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 27 transitions, 121 flow [2021-06-11 06:59:26,793 INFO L129 PetriNetUnfolder]: 75/184 cut-off events. [2021-06-11 06:59:26,793 INFO L130 PetriNetUnfolder]: For 31/51 co-relation queries the response was YES. [2021-06-11 06:59:26,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 184 events. 75/184 cut-off events. For 31/51 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 886 event pairs, 26 based on Foata normal form. 0/177 useless extension candidates. Maximal degree in co-relation 392. Up to 78 conditions per place. [2021-06-11 06:59:26,795 INFO L151 LiptonReduction]: Number of co-enabled transitions 164 [2021-06-11 06:59:26,797 INFO L163 LiptonReduction]: Checked pairs total: 19 [2021-06-11 06:59:26,797 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:59:26,797 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-06-11 06:59:26,798 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 27 transitions, 121 flow [2021-06-11 06:59:26,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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) [2021-06-11 06:59:26,798 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:59:26,798 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:59:26,798 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 06:59:26,798 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:59:26,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:59:26,799 INFO L82 PathProgramCache]: Analyzing trace with hash -268595577, now seen corresponding path program 1 times [2021-06-11 06:59:26,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:59:26,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110497941] [2021-06-11 06:59:26,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:59:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:59:26,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:26,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:59:26,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:59:26,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110497941] [2021-06-11 06:59:26,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:59:26,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 06:59:26,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300821203] [2021-06-11 06:59:26,858 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 06:59:26,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:59:26,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 06:59:26,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 06:59:26,859 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 118 [2021-06-11 06:59:26,859 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 27 transitions, 121 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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) [2021-06-11 06:59:26,860 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:59:26,860 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 118 [2021-06-11 06:59:26,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:59:26,875 INFO L129 PetriNetUnfolder]: 64/164 cut-off events. [2021-06-11 06:59:26,876 INFO L130 PetriNetUnfolder]: For 82/120 co-relation queries the response was YES. [2021-06-11 06:59:26,876 INFO L84 FinitePrefix]: Finished finitePrefix Result has 411 conditions, 164 events. 64/164 cut-off events. For 82/120 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 728 event pairs, 10 based on Foata normal form. 3/162 useless extension candidates. Maximal degree in co-relation 399. Up to 72 conditions per place. [2021-06-11 06:59:26,877 INFO L132 encePairwiseOnDemand]: 114/118 looper letters, 5 selfloop transitions, 5 changer transitions 0/31 dead transitions. [2021-06-11 06:59:26,877 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 31 transitions, 157 flow [2021-06-11 06:59:26,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 06:59:26,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 06:59:26,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2021-06-11 06:59:26,878 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8418079096045198 [2021-06-11 06:59:26,878 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2021-06-11 06:59:26,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2021-06-11 06:59:26,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:59:26,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2021-06-11 06:59:26,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2021-06-11 06:59:26,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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) [2021-06-11 06:59:26,879 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 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) [2021-06-11 06:59:26,879 INFO L185 Difference]: Start difference. First operand has 29 places, 27 transitions, 121 flow. Second operand 3 states and 298 transitions. [2021-06-11 06:59:26,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 31 transitions, 157 flow [2021-06-11 06:59:26,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 31 transitions, 152 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 06:59:26,881 INFO L241 Difference]: Finished difference. Result has 31 places, 31 transitions, 157 flow [2021-06-11 06:59:26,881 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=157, PETRI_PLACES=31, PETRI_TRANSITIONS=31} [2021-06-11 06:59:26,882 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 4 predicate places. [2021-06-11 06:59:26,882 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:59:26,882 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 31 transitions, 157 flow [2021-06-11 06:59:26,882 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 31 transitions, 157 flow [2021-06-11 06:59:26,882 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 31 transitions, 157 flow [2021-06-11 06:59:26,889 INFO L129 PetriNetUnfolder]: 64/164 cut-off events. [2021-06-11 06:59:26,889 INFO L130 PetriNetUnfolder]: For 65/93 co-relation queries the response was YES. [2021-06-11 06:59:26,889 INFO L84 FinitePrefix]: Finished finitePrefix Result has 411 conditions, 164 events. 64/164 cut-off events. For 65/93 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 751 event pairs, 10 based on Foata normal form. 1/159 useless extension candidates. Maximal degree in co-relation 399. Up to 72 conditions per place. [2021-06-11 06:59:26,890 INFO L151 LiptonReduction]: Number of co-enabled transitions 178 [2021-06-11 06:59:26,893 INFO L163 LiptonReduction]: Checked pairs total: 23 [2021-06-11 06:59:26,893 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:59:26,893 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-06-11 06:59:26,894 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 31 transitions, 157 flow [2021-06-11 06:59:26,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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) [2021-06-11 06:59:26,894 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:59:26,894 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:59:26,895 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 06:59:26,895 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:59:26,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:59:26,895 INFO L82 PathProgramCache]: Analyzing trace with hash 205047710, now seen corresponding path program 1 times [2021-06-11 06:59:26,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:59:26,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760537327] [2021-06-11 06:59:26,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:59:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:59:26,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:26,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:59:26,929 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:59:26,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:59:26,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:59:26,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760537327] [2021-06-11 06:59:26,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:59:26,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:59:26,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014891636] [2021-06-11 06:59:26,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:59:26,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:59:26,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:59:26,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:59:26,936 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 118 [2021-06-11 06:59:26,936 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 31 transitions, 157 flow. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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) [2021-06-11 06:59:26,936 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:59:26,936 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 118 [2021-06-11 06:59:26,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:59:26,956 INFO L129 PetriNetUnfolder]: 57/151 cut-off events. [2021-06-11 06:59:26,956 INFO L130 PetriNetUnfolder]: For 86/168 co-relation queries the response was YES. [2021-06-11 06:59:26,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 151 events. 57/151 cut-off events. For 86/168 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 638 event pairs, 1 based on Foata normal form. 3/151 useless extension candidates. Maximal degree in co-relation 484. Up to 67 conditions per place. [2021-06-11 06:59:26,957 INFO L132 encePairwiseOnDemand]: 110/118 looper letters, 18 selfloop transitions, 15 changer transitions 0/42 dead transitions. [2021-06-11 06:59:26,957 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 42 transitions, 283 flow [2021-06-11 06:59:26,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:59:26,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:59:26,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 372 transitions. [2021-06-11 06:59:26,959 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.788135593220339 [2021-06-11 06:59:26,959 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 372 transitions. [2021-06-11 06:59:26,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 372 transitions. [2021-06-11 06:59:26,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:59:26,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 372 transitions. [2021-06-11 06:59:26,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 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) [2021-06-11 06:59:26,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:59:26,961 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:59:26,961 INFO L185 Difference]: Start difference. First operand has 31 places, 31 transitions, 157 flow. Second operand 4 states and 372 transitions. [2021-06-11 06:59:26,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 42 transitions, 283 flow [2021-06-11 06:59:26,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 42 transitions, 276 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 06:59:26,962 INFO L241 Difference]: Finished difference. Result has 36 places, 40 transitions, 274 flow [2021-06-11 06:59:26,962 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=274, PETRI_PLACES=36, PETRI_TRANSITIONS=40} [2021-06-11 06:59:26,962 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 9 predicate places. [2021-06-11 06:59:26,962 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:59:26,963 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 40 transitions, 274 flow [2021-06-11 06:59:26,963 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 40 transitions, 274 flow [2021-06-11 06:59:26,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 40 transitions, 274 flow [2021-06-11 06:59:26,970 INFO L129 PetriNetUnfolder]: 57/151 cut-off events. [2021-06-11 06:59:26,970 INFO L130 PetriNetUnfolder]: For 209/254 co-relation queries the response was YES. [2021-06-11 06:59:26,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 524 conditions, 151 events. 57/151 cut-off events. For 209/254 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 643 event pairs, 2 based on Foata normal form. 2/150 useless extension candidates. Maximal degree in co-relation 508. Up to 67 conditions per place. [2021-06-11 06:59:26,972 INFO L151 LiptonReduction]: Number of co-enabled transitions 212 [2021-06-11 06:59:26,974 INFO L163 LiptonReduction]: Checked pairs total: 32 [2021-06-11 06:59:26,974 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:59:26,974 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-06-11 06:59:26,975 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 40 transitions, 274 flow [2021-06-11 06:59:26,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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) [2021-06-11 06:59:26,975 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:59:26,975 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:59:26,975 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 06:59:26,975 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:59:26,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:59:26,976 INFO L82 PathProgramCache]: Analyzing trace with hash -999496319, now seen corresponding path program 1 times [2021-06-11 06:59:26,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:59:26,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344169846] [2021-06-11 06:59:26,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:59:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:59:26,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:26,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:26,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:26,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:59:26,996 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:59:26,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:59:27,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:59:27,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344169846] [2021-06-11 06:59:27,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:59:27,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:59:27,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459113035] [2021-06-11 06:59:27,001 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:59:27,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:59:27,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:59:27,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:59:27,002 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 118 [2021-06-11 06:59:27,002 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 40 transitions, 274 flow. Second operand has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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) [2021-06-11 06:59:27,002 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:59:27,002 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 118 [2021-06-11 06:59:27,002 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:59:27,024 INFO L129 PetriNetUnfolder]: 54/162 cut-off events. [2021-06-11 06:59:27,024 INFO L130 PetriNetUnfolder]: For 237/311 co-relation queries the response was YES. [2021-06-11 06:59:27,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 162 events. 54/162 cut-off events. For 237/311 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 770 event pairs, 1 based on Foata normal form. 11/171 useless extension candidates. Maximal degree in co-relation 651. Up to 74 conditions per place. [2021-06-11 06:59:27,025 INFO L132 encePairwiseOnDemand]: 110/118 looper letters, 14 selfloop transitions, 20 changer transitions 3/46 dead transitions. [2021-06-11 06:59:27,025 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 46 transitions, 394 flow [2021-06-11 06:59:27,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:59:27,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:59:27,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2021-06-11 06:59:27,029 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7860169491525424 [2021-06-11 06:59:27,029 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2021-06-11 06:59:27,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2021-06-11 06:59:27,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:59:27,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2021-06-11 06:59:27,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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) [2021-06-11 06:59:27,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:59:27,031 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:59:27,031 INFO L185 Difference]: Start difference. First operand has 36 places, 40 transitions, 274 flow. Second operand 4 states and 371 transitions. [2021-06-11 06:59:27,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 46 transitions, 394 flow [2021-06-11 06:59:27,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 46 transitions, 394 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 06:59:27,034 INFO L241 Difference]: Finished difference. Result has 42 places, 41 transitions, 372 flow [2021-06-11 06:59:27,035 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=372, PETRI_PLACES=42, PETRI_TRANSITIONS=41} [2021-06-11 06:59:27,035 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 15 predicate places. [2021-06-11 06:59:27,035 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:59:27,035 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 41 transitions, 372 flow [2021-06-11 06:59:27,035 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 41 transitions, 372 flow [2021-06-11 06:59:27,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 41 transitions, 372 flow [2021-06-11 06:59:27,044 INFO L129 PetriNetUnfolder]: 51/156 cut-off events. [2021-06-11 06:59:27,044 INFO L130 PetriNetUnfolder]: For 487/562 co-relation queries the response was YES. [2021-06-11 06:59:27,044 INFO L84 FinitePrefix]: Finished finitePrefix Result has 675 conditions, 156 events. 51/156 cut-off events. For 487/562 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 734 event pairs, 3 based on Foata normal form. 3/157 useless extension candidates. Maximal degree in co-relation 654. Up to 70 conditions per place. [2021-06-11 06:59:27,045 INFO L151 LiptonReduction]: Number of co-enabled transitions 212 [2021-06-11 06:59:27,048 INFO L163 LiptonReduction]: Checked pairs total: 33 [2021-06-11 06:59:27,048 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:59:27,048 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-06-11 06:59:27,050 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 41 transitions, 372 flow [2021-06-11 06:59:27,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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) [2021-06-11 06:59:27,050 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:59:27,050 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:59:27,050 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 06:59:27,051 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:59:27,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:59:27,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1652248090, now seen corresponding path program 1 times [2021-06-11 06:59:27,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:59:27,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326626019] [2021-06-11 06:59:27,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:59:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:59:27,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:27,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:59:27,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:27,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 06:59:27,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:59:27,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326626019] [2021-06-11 06:59:27,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:59:27,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 06:59:27,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455191467] [2021-06-11 06:59:27,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:59:27,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:59:27,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:59:27,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:59:27,102 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 118 [2021-06-11 06:59:27,102 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 41 transitions, 372 flow. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 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) [2021-06-11 06:59:27,103 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:59:27,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 118 [2021-06-11 06:59:27,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:59:27,150 INFO L129 PetriNetUnfolder]: 124/326 cut-off events. [2021-06-11 06:59:27,150 INFO L130 PetriNetUnfolder]: For 914/1032 co-relation queries the response was YES. [2021-06-11 06:59:27,151 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1088 conditions, 326 events. 124/326 cut-off events. For 914/1032 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2033 event pairs, 27 based on Foata normal form. 38/350 useless extension candidates. Maximal degree in co-relation 1065. Up to 163 conditions per place. [2021-06-11 06:59:27,153 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 8 selfloop transitions, 8 changer transitions 0/51 dead transitions. [2021-06-11 06:59:27,153 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 51 transitions, 424 flow [2021-06-11 06:59:27,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 06:59:27,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 06:59:27,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 443 transitions. [2021-06-11 06:59:27,155 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7508474576271187 [2021-06-11 06:59:27,155 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 443 transitions. [2021-06-11 06:59:27,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 443 transitions. [2021-06-11 06:59:27,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:59:27,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 443 transitions. [2021-06-11 06:59:27,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 88.6) internal successors, (443), 5 states have internal predecessors, (443), 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) [2021-06-11 06:59:27,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 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) [2021-06-11 06:59:27,157 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 118.0) internal successors, (708), 6 states have internal predecessors, (708), 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) [2021-06-11 06:59:27,157 INFO L185 Difference]: Start difference. First operand has 42 places, 41 transitions, 372 flow. Second operand 5 states and 443 transitions. [2021-06-11 06:59:27,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 51 transitions, 424 flow [2021-06-11 06:59:27,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 51 transitions, 418 flow, removed 3 selfloop flow, removed 0 redundant places. [2021-06-11 06:59:27,161 INFO L241 Difference]: Finished difference. Result has 49 places, 48 transitions, 426 flow [2021-06-11 06:59:27,161 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=426, PETRI_PLACES=49, PETRI_TRANSITIONS=48} [2021-06-11 06:59:27,161 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 22 predicate places. [2021-06-11 06:59:27,161 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:59:27,162 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 48 transitions, 426 flow [2021-06-11 06:59:27,162 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 48 transitions, 426 flow [2021-06-11 06:59:27,162 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 48 transitions, 426 flow [2021-06-11 06:59:27,181 INFO L129 PetriNetUnfolder]: 126/328 cut-off events. [2021-06-11 06:59:27,181 INFO L130 PetriNetUnfolder]: For 943/1045 co-relation queries the response was YES. [2021-06-11 06:59:27,182 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1277 conditions, 328 events. 126/328 cut-off events. For 943/1045 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 2081 event pairs, 30 based on Foata normal form. 15/322 useless extension candidates. Maximal degree in co-relation 1251. Up to 183 conditions per place. [2021-06-11 06:59:27,184 INFO L151 LiptonReduction]: Number of co-enabled transitions 372 [2021-06-11 06:59:27,186 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:59:27,187 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:59:27,187 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-06-11 06:59:27,187 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 48 transitions, 426 flow [2021-06-11 06:59:27,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 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) [2021-06-11 06:59:27,188 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:59:27,188 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:59:27,188 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-11 06:59:27,188 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:59:27,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:59:27,188 INFO L82 PathProgramCache]: Analyzing trace with hash 109783971, now seen corresponding path program 1 times [2021-06-11 06:59:27,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:59:27,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140711465] [2021-06-11 06:59:27,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:59:27,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:59:27,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:27,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:27,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:27,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:59:27,236 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:59:27,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:59:27,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:59:27,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140711465] [2021-06-11 06:59:27,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:59:27,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:59:27,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682459437] [2021-06-11 06:59:27,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:59:27,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:59:27,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:59:27,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:59:27,243 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 118 [2021-06-11 06:59:27,244 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 48 transitions, 426 flow. Second operand has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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) [2021-06-11 06:59:27,244 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:59:27,244 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 118 [2021-06-11 06:59:27,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:59:27,293 INFO L129 PetriNetUnfolder]: 163/421 cut-off events. [2021-06-11 06:59:27,293 INFO L130 PetriNetUnfolder]: For 1237/1433 co-relation queries the response was YES. [2021-06-11 06:59:27,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1672 conditions, 421 events. 163/421 cut-off events. For 1237/1433 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 2855 event pairs, 44 based on Foata normal form. 41/432 useless extension candidates. Maximal degree in co-relation 1644. Up to 269 conditions per place. [2021-06-11 06:59:27,295 INFO L132 encePairwiseOnDemand]: 110/118 looper letters, 14 selfloop transitions, 20 changer transitions 3/53 dead transitions. [2021-06-11 06:59:27,295 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 53 transitions, 558 flow [2021-06-11 06:59:27,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:59:27,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:59:27,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2021-06-11 06:59:27,296 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7860169491525424 [2021-06-11 06:59:27,297 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2021-06-11 06:59:27,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2021-06-11 06:59:27,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:59:27,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2021-06-11 06:59:27,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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) [2021-06-11 06:59:27,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:59:27,298 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:59:27,298 INFO L185 Difference]: Start difference. First operand has 49 places, 48 transitions, 426 flow. Second operand 4 states and 371 transitions. [2021-06-11 06:59:27,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 53 transitions, 558 flow [2021-06-11 06:59:27,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 53 transitions, 554 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 06:59:27,303 INFO L241 Difference]: Finished difference. Result has 54 places, 48 transitions, 520 flow [2021-06-11 06:59:27,303 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=520, PETRI_PLACES=54, PETRI_TRANSITIONS=48} [2021-06-11 06:59:27,303 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 27 predicate places. [2021-06-11 06:59:27,303 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:59:27,303 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 48 transitions, 520 flow [2021-06-11 06:59:27,303 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 48 transitions, 520 flow [2021-06-11 06:59:27,304 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 48 transitions, 520 flow [2021-06-11 06:59:27,338 INFO L129 PetriNetUnfolder]: 160/417 cut-off events. [2021-06-11 06:59:27,338 INFO L130 PetriNetUnfolder]: For 1394/1500 co-relation queries the response was YES. [2021-06-11 06:59:27,339 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1653 conditions, 417 events. 160/417 cut-off events. For 1394/1500 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 2860 event pairs, 44 based on Foata normal form. 17/412 useless extension candidates. Maximal degree in co-relation 1623. Up to 269 conditions per place. [2021-06-11 06:59:27,342 INFO L151 LiptonReduction]: Number of co-enabled transitions 372 [2021-06-11 06:59:27,345 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:59:27,345 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:59:27,345 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-06-11 06:59:27,347 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 48 transitions, 520 flow [2021-06-11 06:59:27,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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) [2021-06-11 06:59:27,347 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:59:27,347 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:59:27,347 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-11 06:59:27,348 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:59:27,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:59:27,348 INFO L82 PathProgramCache]: Analyzing trace with hash -452949235, now seen corresponding path program 1 times [2021-06-11 06:59:27,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:59:27,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664898812] [2021-06-11 06:59:27,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:59:27,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:59:27,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:27,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 06:59:27,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:27,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:59:27,378 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-06-11 06:59:27,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 06:59:27,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:59:27,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664898812] [2021-06-11 06:59:27,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:59:27,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:59:27,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462532971] [2021-06-11 06:59:27,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 06:59:27,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:59:27,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 06:59:27,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 06:59:27,386 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 118 [2021-06-11 06:59:27,387 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 48 transitions, 520 flow. Second operand has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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) [2021-06-11 06:59:27,387 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:59:27,387 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 118 [2021-06-11 06:59:27,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:59:27,437 INFO L129 PetriNetUnfolder]: 211/531 cut-off events. [2021-06-11 06:59:27,437 INFO L130 PetriNetUnfolder]: For 1738/1981 co-relation queries the response was YES. [2021-06-11 06:59:27,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2088 conditions, 531 events. 211/531 cut-off events. For 1738/1981 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 3819 event pairs, 68 based on Foata normal form. 38/518 useless extension candidates. Maximal degree in co-relation 2056. Up to 377 conditions per place. [2021-06-11 06:59:27,439 INFO L132 encePairwiseOnDemand]: 110/118 looper letters, 11 selfloop transitions, 19 changer transitions 7/53 dead transitions. [2021-06-11 06:59:27,439 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 53 transitions, 664 flow [2021-06-11 06:59:27,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 06:59:27,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 06:59:27,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2021-06-11 06:59:27,441 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7860169491525424 [2021-06-11 06:59:27,441 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2021-06-11 06:59:27,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2021-06-11 06:59:27,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:59:27,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2021-06-11 06:59:27,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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) [2021-06-11 06:59:27,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:59:27,443 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:59:27,443 INFO L185 Difference]: Start difference. First operand has 54 places, 48 transitions, 520 flow. Second operand 4 states and 371 transitions. [2021-06-11 06:59:27,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 53 transitions, 664 flow [2021-06-11 06:59:27,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 53 transitions, 662 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-06-11 06:59:27,448 INFO L241 Difference]: Finished difference. Result has 58 places, 44 transitions, 505 flow [2021-06-11 06:59:27,448 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=505, PETRI_PLACES=58, PETRI_TRANSITIONS=44} [2021-06-11 06:59:27,448 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 31 predicate places. [2021-06-11 06:59:27,448 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:59:27,448 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 44 transitions, 505 flow [2021-06-11 06:59:27,448 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 44 transitions, 505 flow [2021-06-11 06:59:27,449 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 44 transitions, 505 flow [2021-06-11 06:59:27,478 INFO L129 PetriNetUnfolder]: 202/520 cut-off events. [2021-06-11 06:59:27,478 INFO L130 PetriNetUnfolder]: For 1860/2065 co-relation queries the response was YES. [2021-06-11 06:59:27,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1962 conditions, 520 events. 202/520 cut-off events. For 1860/2065 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 3826 event pairs, 69 based on Foata normal form. 20/504 useless extension candidates. Maximal degree in co-relation 1929. Up to 377 conditions per place. [2021-06-11 06:59:27,482 INFO L151 LiptonReduction]: Number of co-enabled transitions 320 [2021-06-11 06:59:27,485 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:59:27,485 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:59:27,485 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-06-11 06:59:27,485 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 44 transitions, 505 flow [2021-06-11 06:59:27,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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) [2021-06-11 06:59:27,486 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:59:27,486 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:59:27,486 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-11 06:59:27,486 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:59:27,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:59:27,486 INFO L82 PathProgramCache]: Analyzing trace with hash 436479811, now seen corresponding path program 1 times [2021-06-11 06:59:27,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:59:27,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093210607] [2021-06-11 06:59:27,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:59:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:59:27,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:27,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:59:27,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:27,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:59:27,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:27,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 06:59:27,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:59:27,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093210607] [2021-06-11 06:59:27,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:59:27,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 06:59:27,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099662380] [2021-06-11 06:59:27,528 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 06:59:27,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:59:27,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 06:59:27,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 06:59:27,529 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 118 [2021-06-11 06:59:27,529 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 44 transitions, 505 flow. Second operand has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 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) [2021-06-11 06:59:27,529 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:59:27,529 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 118 [2021-06-11 06:59:27,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:59:27,594 INFO L129 PetriNetUnfolder]: 169/482 cut-off events. [2021-06-11 06:59:27,594 INFO L130 PetriNetUnfolder]: For 1950/2729 co-relation queries the response was YES. [2021-06-11 06:59:27,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2104 conditions, 482 events. 169/482 cut-off events. For 1950/2729 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 3690 event pairs, 10 based on Foata normal form. 236/688 useless extension candidates. Maximal degree in co-relation 2069. Up to 365 conditions per place. [2021-06-11 06:59:27,596 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 5 selfloop transitions, 7 changer transitions 23/54 dead transitions. [2021-06-11 06:59:27,596 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 54 transitions, 609 flow [2021-06-11 06:59:27,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 06:59:27,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 06:59:27,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 620 transitions. [2021-06-11 06:59:27,598 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7506053268765133 [2021-06-11 06:59:27,598 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 620 transitions. [2021-06-11 06:59:27,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 620 transitions. [2021-06-11 06:59:27,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:59:27,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 620 transitions. [2021-06-11 06:59:27,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.57142857142857) internal successors, (620), 7 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 06:59:27,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 118.0) internal successors, (944), 8 states have internal predecessors, (944), 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) [2021-06-11 06:59:27,600 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 118.0) internal successors, (944), 8 states have internal predecessors, (944), 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) [2021-06-11 06:59:27,600 INFO L185 Difference]: Start difference. First operand has 58 places, 44 transitions, 505 flow. Second operand 7 states and 620 transitions. [2021-06-11 06:59:27,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 54 transitions, 609 flow [2021-06-11 06:59:27,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 54 transitions, 554 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-06-11 06:59:27,605 INFO L241 Difference]: Finished difference. Result has 64 places, 31 transitions, 369 flow [2021-06-11 06:59:27,605 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=369, PETRI_PLACES=64, PETRI_TRANSITIONS=31} [2021-06-11 06:59:27,605 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 37 predicate places. [2021-06-11 06:59:27,606 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:59:27,606 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 31 transitions, 369 flow [2021-06-11 06:59:27,606 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 31 transitions, 369 flow [2021-06-11 06:59:27,606 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 31 transitions, 369 flow [2021-06-11 06:59:27,612 INFO L129 PetriNetUnfolder]: 24/90 cut-off events. [2021-06-11 06:59:27,612 INFO L130 PetriNetUnfolder]: For 490/576 co-relation queries the response was YES. [2021-06-11 06:59:27,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 503 conditions, 90 events. 24/90 cut-off events. For 490/576 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 328 event pairs, 3 based on Foata normal form. 4/91 useless extension candidates. Maximal degree in co-relation 468. Up to 61 conditions per place. [2021-06-11 06:59:27,613 INFO L151 LiptonReduction]: Number of co-enabled transitions 116 [2021-06-11 06:59:27,614 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:59:27,614 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:59:27,614 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-06-11 06:59:27,614 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 31 transitions, 369 flow [2021-06-11 06:59:27,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 85.8) internal successors, (429), 5 states have internal predecessors, (429), 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) [2021-06-11 06:59:27,615 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 06:59:27,615 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 06:59:27,615 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-11 06:59:27,615 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 06:59:27,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 06:59:27,615 INFO L82 PathProgramCache]: Analyzing trace with hash 618002270, now seen corresponding path program 1 times [2021-06-11 06:59:27,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 06:59:27,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753713726] [2021-06-11 06:59:27,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 06:59:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 06:59:27,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:27,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:59:27,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:27,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:59:27,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:27,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 06:59:27,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 06:59:27,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 06:59:27,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 06:59:27,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753713726] [2021-06-11 06:59:27,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 06:59:27,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 06:59:27,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645386635] [2021-06-11 06:59:27,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 06:59:27,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 06:59:27,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 06:59:27,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-11 06:59:27,656 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 118 [2021-06-11 06:59:27,656 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 31 transitions, 369 flow. Second operand has 6 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 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) [2021-06-11 06:59:27,656 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 06:59:27,656 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 118 [2021-06-11 06:59:27,656 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 06:59:27,687 INFO L129 PetriNetUnfolder]: 21/81 cut-off events. [2021-06-11 06:59:27,687 INFO L130 PetriNetUnfolder]: For 451/577 co-relation queries the response was YES. [2021-06-11 06:59:27,687 INFO L84 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 81 events. 21/81 cut-off events. For 451/577 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 300 event pairs, 0 based on Foata normal form. 35/113 useless extension candidates. Maximal degree in co-relation 466. Up to 58 conditions per place. [2021-06-11 06:59:27,687 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions. [2021-06-11 06:59:27,688 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 34 transitions, 411 flow [2021-06-11 06:59:27,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 06:59:27,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 06:59:27,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 611 transitions. [2021-06-11 06:59:27,689 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7397094430992736 [2021-06-11 06:59:27,689 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 611 transitions. [2021-06-11 06:59:27,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 611 transitions. [2021-06-11 06:59:27,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 06:59:27,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 611 transitions. [2021-06-11 06:59:27,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.28571428571429) internal successors, (611), 7 states have internal predecessors, (611), 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) [2021-06-11 06:59:27,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 118.0) internal successors, (944), 8 states have internal predecessors, (944), 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) [2021-06-11 06:59:27,692 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 118.0) internal successors, (944), 8 states have internal predecessors, (944), 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) [2021-06-11 06:59:27,693 INFO L185 Difference]: Start difference. First operand has 59 places, 31 transitions, 369 flow. Second operand 7 states and 611 transitions. [2021-06-11 06:59:27,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 34 transitions, 411 flow [2021-06-11 06:59:27,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 34 transitions, 268 flow, removed 18 selfloop flow, removed 14 redundant places. [2021-06-11 06:59:27,694 INFO L241 Difference]: Finished difference. Result has 50 places, 0 transitions, 0 flow [2021-06-11 06:59:27,694 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=50, PETRI_TRANSITIONS=0} [2021-06-11 06:59:27,695 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 23 predicate places. [2021-06-11 06:59:27,695 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 06:59:27,695 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 0 transitions, 0 flow [2021-06-11 06:59:27,695 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 0 transitions, 0 flow [2021-06-11 06:59:27,695 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 06:59:27,695 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 06:59:27,695 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 06:59:27,695 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. [2021-06-11 06:59:27,695 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 06:59:27,696 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 06:59:27,696 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 06:59:27,696 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 06:59:27,696 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 06:59:27,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 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) [2021-06-11 06:59:27,696 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-11 06:59:27,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 06:59:27 BasicIcfg [2021-06-11 06:59:27,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 06:59:27,700 INFO L168 Benchmark]: Toolchain (without parser) took 4330.22 ms. Allocated memory was 379.6 MB in the beginning and 457.2 MB in the end (delta: 77.6 MB). Free memory was 342.3 MB in the beginning and 290.9 MB in the end (delta: 51.3 MB). Peak memory consumption was 130.9 MB. Max. memory is 16.0 GB. [2021-06-11 06:59:27,700 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 379.6 MB. Free memory is still 360.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 06:59:27,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.88 ms. Allocated memory is still 379.6 MB. Free memory was 342.1 MB in the beginning and 341.7 MB in the end (delta: 374.2 kB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. [2021-06-11 06:59:27,701 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.27 ms. Allocated memory is still 379.6 MB. Free memory was 341.7 MB in the beginning and 339.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 06:59:27,701 INFO L168 Benchmark]: Boogie Preprocessor took 24.10 ms. Allocated memory is still 379.6 MB. Free memory was 339.6 MB in the beginning and 338.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 06:59:27,701 INFO L168 Benchmark]: RCFGBuilder took 346.66 ms. Allocated memory is still 379.6 MB. Free memory was 338.6 MB in the beginning and 314.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-11 06:59:27,702 INFO L168 Benchmark]: TraceAbstraction took 3521.82 ms. Allocated memory was 379.6 MB in the beginning and 457.2 MB in the end (delta: 77.6 MB). Free memory was 314.5 MB in the beginning and 290.9 MB in the end (delta: 23.5 MB). Peak memory consumption was 103.2 MB. Max. memory is 16.0 GB. [2021-06-11 06:59:27,704 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 379.6 MB. Free memory is still 360.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 386.88 ms. Allocated memory is still 379.6 MB. Free memory was 342.1 MB in the beginning and 341.7 MB in the end (delta: 374.2 kB). Peak memory consumption was 6.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 45.27 ms. Allocated memory is still 379.6 MB. Free memory was 341.7 MB in the beginning and 339.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 24.10 ms. Allocated memory is still 379.6 MB. Free memory was 339.6 MB in the beginning and 338.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 346.66 ms. Allocated memory is still 379.6 MB. Free memory was 338.6 MB in the beginning and 314.5 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3521.82 ms. Allocated memory was 379.6 MB in the beginning and 457.2 MB in the end (delta: 77.6 MB). Free memory was 314.5 MB in the beginning and 290.9 MB in the end (delta: 23.5 MB). Peak memory consumption was 103.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1985.1ms, 67 PlacesBefore, 27 PlacesAfterwards, 58 TransitionsBefore, 18 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 45 TotalNumberOfCompositions, 1792 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1024, positive: 941, positive conditional: 0, positive unconditional: 941, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 671, positive: 621, positive conditional: 0, positive unconditional: 621, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 671, positive: 621, positive conditional: 0, positive unconditional: 621, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 671, positive: 607, positive conditional: 0, positive unconditional: 607, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 64, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 214, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 169, negative conditional: 0, negative unconditional: 169, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1024, positive: 320, positive conditional: 0, positive unconditional: 320, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 671, unknown conditional: 0, unknown unconditional: 671] , Statistics on independence cache: Total cache size (in pairs): 1158, Positive cache size: 1108, Positive conditional cache size: 0, Positive unconditional cache size: 1108, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7ms, 25 PlacesBefore, 24 PlacesAfterwards, 17 TransitionsBefore, 17 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 138 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 53, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 14, negative conditional: 0, negative unconditional: 14, 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: 53, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1158, Positive cache size: 1108, Positive conditional cache size: 0, Positive unconditional cache size: 1108, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.6ms, 28 PlacesBefore, 28 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 142 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 15 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , 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: 6, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1160, Positive cache size: 1110, Positive conditional cache size: 0, Positive unconditional cache size: 1110, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.8ms, 29 PlacesBefore, 29 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 164 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 19 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.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] , 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: 10, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 1162, Positive cache size: 1112, Positive conditional cache size: 0, Positive unconditional cache size: 1112, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.4ms, 31 PlacesBefore, 31 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 178 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 23 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 1, negative conditional: 0, negative unconditional: 1, 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: 12, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1162, Positive cache size: 1112, Positive conditional cache size: 0, Positive unconditional cache size: 1112, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.4ms, 36 PlacesBefore, 36 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 212 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 32 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 1, negative conditional: 0, negative unconditional: 1, 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: 11, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1162, Positive cache size: 1112, Positive conditional cache size: 0, Positive unconditional cache size: 1112, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.2ms, 42 PlacesBefore, 42 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 212 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 33 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1162, Positive cache size: 1112, Positive conditional cache size: 0, Positive unconditional cache size: 1112, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.8ms, 49 PlacesBefore, 49 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 372 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): 1162, Positive cache size: 1112, Positive conditional cache size: 0, Positive unconditional cache size: 1112, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.6ms, 54 PlacesBefore, 54 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 372 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): 1162, Positive cache size: 1112, Positive conditional cache size: 0, Positive unconditional cache size: 1112, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.5ms, 58 PlacesBefore, 58 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 320 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): 1162, Positive cache size: 1112, Positive conditional cache size: 0, Positive unconditional cache size: 1112, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.2ms, 64 PlacesBefore, 59 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 116 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): 1162, Positive cache size: 1112, Positive conditional cache size: 0, Positive unconditional cache size: 1112, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 50 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): 1162, Positive cache size: 1112, Positive conditional cache size: 0, Positive unconditional cache size: 1112, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50 - 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, 72 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3425.6ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 517.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2074.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 81 SDtfs, 22 SDslu, 33 SDs, 0 SdLazy, 127 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 90.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 74.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=520occurred in iteration=8, InterpolantAutomatonStates: 46, 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: 17.3ms SsaConstructionTime, 122.7ms SatisfiabilityAnalysisTime, 328.8ms InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 492 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...