/usr/bin/java -Xmx8000000000 -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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 07:32:01,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 07:32:01,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 07:32:01,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-13 07:32:01,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-13 07:32:01,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-13 07:32:01,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-13 07:32:01,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-13 07:32:01,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-13 07:32:01,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-13 07:32:01,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-13 07:32:01,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-13 07:32:01,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-13 07:32:01,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-13 07:32:01,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-13 07:32:01,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-13 07:32:01,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-13 07:32:01,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-13 07:32:01,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-13 07:32:01,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-13 07:32:01,310 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-NoLbe.epf [2021-06-13 07:32:01,325 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 07:32:01,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 07:32:01,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 07:32:01,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 07:32:01,326 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 07:32:01,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 07:32:01,326 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 07:32:01,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 07:32:01,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 07:32:01,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 07:32:01,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 07:32:01,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 07:32:01,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 07:32:01,327 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 07:32:01,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 07:32:01,327 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 07:32:01,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 07:32:01,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 07:32:01,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 07:32:01,328 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 07:32:01,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 07:32:01,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 07:32:01,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 07:32:01,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 07:32:01,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 07:32:01,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 07:32:01,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 07:32:01,329 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 07:32:01,329 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-13 07:32:01,329 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 07:32:01,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 07:32:01,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 07:32:01,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 07:32:01,564 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-13 07:32:01,565 INFO L275 PluginConnector]: CDTParser initialized [2021-06-13 07:32:01,565 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2021-06-13 07:32:01,614 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/722172593/f114437ad0f046b3a042027baf7a8038/FLAG1f9021e0e [2021-06-13 07:32:02,048 INFO L306 CDTParser]: Found 1 translation units. [2021-06-13 07:32:02,049 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2021-06-13 07:32:02,061 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/722172593/f114437ad0f046b3a042027baf7a8038/FLAG1f9021e0e [2021-06-13 07:32:02,076 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/722172593/f114437ad0f046b3a042027baf7a8038 [2021-06-13 07:32:02,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 07:32:02,082 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-13 07:32:02,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-13 07:32:02,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-13 07:32:02,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-13 07:32:02,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 07:32:02" (1/1) ... [2021-06-13 07:32:02,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41fe681a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:32:02, skipping insertion in model container [2021-06-13 07:32:02,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 07:32:02" (1/1) ... [2021-06-13 07:32:02,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-13 07:32:02,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-13 07:32:02,289 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i[949,962] [2021-06-13 07:32:02,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 07:32:02,376 INFO L203 MainTranslator]: Completed pre-run [2021-06-13 07:32:02,390 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i[949,962] [2021-06-13 07:32:02,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 07:32:02,470 INFO L208 MainTranslator]: Completed translation [2021-06-13 07:32:02,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:32:02 WrapperNode [2021-06-13 07:32:02,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-13 07:32:02,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 07:32:02,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 07:32:02,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 07:32:02,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:32:02" (1/1) ... [2021-06-13 07:32:02,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:32:02" (1/1) ... [2021-06-13 07:32:02,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 07:32:02,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 07:32:02,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 07:32:02,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 07:32:02,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:32:02" (1/1) ... [2021-06-13 07:32:02,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:32:02" (1/1) ... [2021-06-13 07:32:02,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:32:02" (1/1) ... [2021-06-13 07:32:02,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:32:02" (1/1) ... [2021-06-13 07:32:02,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:32:02" (1/1) ... [2021-06-13 07:32:02,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:32:02" (1/1) ... [2021-06-13 07:32:02,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:32:02" (1/1) ... [2021-06-13 07:32:02,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 07:32:02,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 07:32:02,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 07:32:02,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 07:32:02,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:32:02" (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 [2021-06-13 07:32:02,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-13 07:32:02,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-13 07:32:02,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-13 07:32:02,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-13 07:32:02,579 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-13 07:32:02,579 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-13 07:32:02,580 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-13 07:32:02,580 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-13 07:32:02,580 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-13 07:32:02,580 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-13 07:32:02,580 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-06-13 07:32:02,580 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-06-13 07:32:02,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-13 07:32:02,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-13 07:32:02,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 07:32:02,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 07:32:02,582 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 07:32:02,870 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 07:32:02,870 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-13 07:32:02,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 07:32:02 BoogieIcfgContainer [2021-06-13 07:32:02,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 07:32:02,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 07:32:02,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 07:32:02,875 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 07:32:02,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.06 07:32:02" (1/3) ... [2021-06-13 07:32:02,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5df0ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 07:32:02, skipping insertion in model container [2021-06-13 07:32:02,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:32:02" (2/3) ... [2021-06-13 07:32:02,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5df0ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 07:32:02, skipping insertion in model container [2021-06-13 07:32:02,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 07:32:02" (3/3) ... [2021-06-13 07:32:02,877 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.opt.i [2021-06-13 07:32:02,880 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 07:32:02,880 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 07:32:02,881 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 07:32:02,900 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,900 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,900 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,900 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,901 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,901 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,902 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,902 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,902 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,902 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,903 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,903 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,903 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,904 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,904 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,904 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,904 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,904 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,904 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,904 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,904 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,905 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,905 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,905 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,905 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,905 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,905 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,905 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,905 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,905 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,906 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,906 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,906 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,906 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,907 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,908 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,908 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,908 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,911 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,911 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,911 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,912 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,913 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,913 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,913 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,913 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,914 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,914 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,914 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,915 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:32:02,915 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-13 07:32:02,929 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-13 07:32:02,941 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 07:32:02,941 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 07:32:02,941 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 07:32:02,941 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 07:32:02,942 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 07:32:02,942 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 07:32:02,942 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 07:32:02,942 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 07:32:02,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 98 transitions, 216 flow [2021-06-13 07:32:02,974 INFO L129 PetriNetUnfolder]: 2/94 cut-off events. [2021-06-13 07:32:02,974 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 07:32:02,977 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2021-06-13 07:32:02,977 INFO L82 GeneralOperation]: Start removeDead. Operand has 109 places, 98 transitions, 216 flow [2021-06-13 07:32:02,980 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 80 transitions, 172 flow [2021-06-13 07:32:02,992 INFO L129 PetriNetUnfolder]: 1/79 cut-off events. [2021-06-13 07:32:02,993 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 07:32:02,993 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:32:02,993 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:32:02,993 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:32:02,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:32:02,997 INFO L82 PathProgramCache]: Analyzing trace with hash -352002722, now seen corresponding path program 1 times [2021-06-13 07:32:03,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:32:03,002 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899551909] [2021-06-13 07:32:03,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:32:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:32:03,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:03,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:03,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:03,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:03,210 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-13 07:32:03,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:32:03,222 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:32:03,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:32:03,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:03,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:03,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:03,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:03,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:03,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:03,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:32:03,261 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:32:03,261 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899551909] [2021-06-13 07:32:03,261 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899551909] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:32:03,261 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:32:03,262 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:32:03,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325064682] [2021-06-13 07:32:03,267 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:32:03,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:32:03,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:32:03,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:32:03,279 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2021-06-13 07:32:03,282 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 80 transitions, 172 flow. Second operand has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-06-13 07:32:03,282 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:32:03,282 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2021-06-13 07:32:03,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:32:03,517 INFO L129 PetriNetUnfolder]: 268/675 cut-off events. [2021-06-13 07:32:03,517 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 07:32:03,519 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1151 conditions, 675 events. 268/675 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3768 event pairs, 88 based on Foata normal form. 27/675 useless extension candidates. Maximal degree in co-relation 1116. Up to 187 conditions per place. [2021-06-13 07:32:03,522 INFO L132 encePairwiseOnDemand]: 88/98 looper letters, 19 selfloop transitions, 5 changer transitions 41/129 dead transitions. [2021-06-13 07:32:03,522 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 129 transitions, 400 flow [2021-06-13 07:32:03,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-13 07:32:03,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-13 07:32:03,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1098 transitions. [2021-06-13 07:32:03,533 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8618524332810047 [2021-06-13 07:32:03,533 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1098 transitions. [2021-06-13 07:32:03,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1098 transitions. [2021-06-13 07:32:03,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:32:03,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1098 transitions. [2021-06-13 07:32:03,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 84.46153846153847) internal successors, (1098), 13 states have internal predecessors, (1098), 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) [2021-06-13 07:32:03,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 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) [2021-06-13 07:32:03,547 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 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) [2021-06-13 07:32:03,548 INFO L185 Difference]: Start difference. First operand has 92 places, 80 transitions, 172 flow. Second operand 13 states and 1098 transitions. [2021-06-13 07:32:03,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 129 transitions, 400 flow [2021-06-13 07:32:03,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 129 transitions, 396 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-13 07:32:03,553 INFO L241 Difference]: Finished difference. Result has 112 places, 82 transitions, 238 flow [2021-06-13 07:32:03,555 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=238, PETRI_PLACES=112, PETRI_TRANSITIONS=82} [2021-06-13 07:32:03,555 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 20 predicate places. [2021-06-13 07:32:03,555 INFO L482 AbstractCegarLoop]: Abstraction has has 112 places, 82 transitions, 238 flow [2021-06-13 07:32:03,556 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 80.42857142857143) internal successors, (563), 7 states have internal predecessors, (563), 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) [2021-06-13 07:32:03,556 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:32:03,556 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:32:03,556 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 07:32:03,556 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:32:03,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:32:03,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1282702817, now seen corresponding path program 1 times [2021-06-13 07:32:03,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:32:03,557 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953909335] [2021-06-13 07:32:03,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:32:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:32:03,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:03,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:03,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:03,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:03,621 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-13 07:32:03,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:32:03,629 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:32:03,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:32:03,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:03,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:03,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:03,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:03,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:03,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:03,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:32:03,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:32:03,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953909335] [2021-06-13 07:32:03,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953909335] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:32:03,657 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:32:03,657 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:32:03,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877420116] [2021-06-13 07:32:03,658 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:32:03,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:32:03,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:32:03,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:32:03,660 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2021-06-13 07:32:03,660 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 82 transitions, 238 flow. Second operand has 7 states, 7 states have (on average 80.57142857142857) internal successors, (564), 7 states have internal predecessors, (564), 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) [2021-06-13 07:32:03,661 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:32:03,661 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2021-06-13 07:32:03,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:32:03,877 INFO L129 PetriNetUnfolder]: 146/549 cut-off events. [2021-06-13 07:32:03,877 INFO L130 PetriNetUnfolder]: For 1006/1427 co-relation queries the response was YES. [2021-06-13 07:32:03,880 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1532 conditions, 549 events. 146/549 cut-off events. For 1006/1427 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3210 event pairs, 2 based on Foata normal form. 18/548 useless extension candidates. Maximal degree in co-relation 1487. Up to 123 conditions per place. [2021-06-13 07:32:03,883 INFO L132 encePairwiseOnDemand]: 86/98 looper letters, 17 selfloop transitions, 13 changer transitions 40/134 dead transitions. [2021-06-13 07:32:03,883 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 134 transitions, 728 flow [2021-06-13 07:32:03,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-13 07:32:03,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-13 07:32:03,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1097 transitions. [2021-06-13 07:32:03,885 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8610675039246468 [2021-06-13 07:32:03,886 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1097 transitions. [2021-06-13 07:32:03,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1097 transitions. [2021-06-13 07:32:03,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:32:03,886 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1097 transitions. [2021-06-13 07:32:03,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 84.38461538461539) internal successors, (1097), 13 states have internal predecessors, (1097), 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) [2021-06-13 07:32:03,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 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) [2021-06-13 07:32:03,891 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 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) [2021-06-13 07:32:03,891 INFO L185 Difference]: Start difference. First operand has 112 places, 82 transitions, 238 flow. Second operand 13 states and 1097 transitions. [2021-06-13 07:32:03,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 134 transitions, 728 flow [2021-06-13 07:32:03,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 134 transitions, 676 flow, removed 24 selfloop flow, removed 4 redundant places. [2021-06-13 07:32:03,900 INFO L241 Difference]: Finished difference. Result has 122 places, 87 transitions, 331 flow [2021-06-13 07:32:03,901 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=331, PETRI_PLACES=122, PETRI_TRANSITIONS=87} [2021-06-13 07:32:03,901 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 30 predicate places. [2021-06-13 07:32:03,901 INFO L482 AbstractCegarLoop]: Abstraction has has 122 places, 87 transitions, 331 flow [2021-06-13 07:32:03,901 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 80.57142857142857) internal successors, (564), 7 states have internal predecessors, (564), 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) [2021-06-13 07:32:03,902 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:32:03,902 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:32:03,902 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-13 07:32:03,902 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:32:03,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:32:03,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1108288162, now seen corresponding path program 1 times [2021-06-13 07:32:03,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:32:03,910 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101487762] [2021-06-13 07:32:03,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:32:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:32:04,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:04,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:04,014 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-13 07:32:04,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:32:04,030 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:32:04,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:32:04,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:04,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:04,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:04,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:32:04,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:32:04,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101487762] [2021-06-13 07:32:04,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101487762] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:32:04,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:32:04,068 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:32:04,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959677573] [2021-06-13 07:32:04,068 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:32:04,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:32:04,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:32:04,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:32:04,070 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2021-06-13 07:32:04,070 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 87 transitions, 331 flow. Second operand has 7 states, 7 states have (on average 80.71428571428571) internal successors, (565), 7 states have internal predecessors, (565), 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) [2021-06-13 07:32:04,070 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:32:04,070 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2021-06-13 07:32:04,070 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:32:04,234 INFO L129 PetriNetUnfolder]: 77/319 cut-off events. [2021-06-13 07:32:04,234 INFO L130 PetriNetUnfolder]: For 1217/1763 co-relation queries the response was YES. [2021-06-13 07:32:04,235 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1077 conditions, 319 events. 77/319 cut-off events. For 1217/1763 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1376 event pairs, 2 based on Foata normal form. 15/320 useless extension candidates. Maximal degree in co-relation 1018. Up to 87 conditions per place. [2021-06-13 07:32:04,237 INFO L132 encePairwiseOnDemand]: 86/98 looper letters, 18 selfloop transitions, 12 changer transitions 25/119 dead transitions. [2021-06-13 07:32:04,237 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 119 transitions, 697 flow [2021-06-13 07:32:04,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-13 07:32:04,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-13 07:32:04,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1080 transitions. [2021-06-13 07:32:04,239 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.847723704866562 [2021-06-13 07:32:04,239 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1080 transitions. [2021-06-13 07:32:04,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1080 transitions. [2021-06-13 07:32:04,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:32:04,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1080 transitions. [2021-06-13 07:32:04,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 83.07692307692308) internal successors, (1080), 13 states have internal predecessors, (1080), 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) [2021-06-13 07:32:04,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 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) [2021-06-13 07:32:04,243 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 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) [2021-06-13 07:32:04,243 INFO L185 Difference]: Start difference. First operand has 122 places, 87 transitions, 331 flow. Second operand 13 states and 1080 transitions. [2021-06-13 07:32:04,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 119 transitions, 697 flow [2021-06-13 07:32:04,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 119 transitions, 613 flow, removed 42 selfloop flow, removed 12 redundant places. [2021-06-13 07:32:04,247 INFO L241 Difference]: Finished difference. Result has 123 places, 87 transitions, 347 flow [2021-06-13 07:32:04,248 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=347, PETRI_PLACES=123, PETRI_TRANSITIONS=87} [2021-06-13 07:32:04,248 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 31 predicate places. [2021-06-13 07:32:04,248 INFO L482 AbstractCegarLoop]: Abstraction has has 123 places, 87 transitions, 347 flow [2021-06-13 07:32:04,248 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 80.71428571428571) internal successors, (565), 7 states have internal predecessors, (565), 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) [2021-06-13 07:32:04,248 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:32:04,248 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:32:04,248 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-13 07:32:04,249 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:32:04,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:32:04,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1147038059, now seen corresponding path program 1 times [2021-06-13 07:32:04,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:32:04,249 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780016548] [2021-06-13 07:32:04,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:32:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:32:04,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:04,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:04,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:04,287 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-13 07:32:04,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:32:04,295 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:32:04,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:32:04,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:04,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:04,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:04,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:32:04,325 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:32:04,325 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780016548] [2021-06-13 07:32:04,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780016548] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:32:04,325 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:32:04,325 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 07:32:04,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725236245] [2021-06-13 07:32:04,325 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 07:32:04,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:32:04,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 07:32:04,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-06-13 07:32:04,326 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 98 [2021-06-13 07:32:04,327 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 87 transitions, 347 flow. Second operand has 8 states, 8 states have (on average 78.75) internal successors, (630), 8 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:04,327 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:32:04,327 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 98 [2021-06-13 07:32:04,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:32:04,509 INFO L129 PetriNetUnfolder]: 192/599 cut-off events. [2021-06-13 07:32:04,510 INFO L130 PetriNetUnfolder]: For 2854/5027 co-relation queries the response was YES. [2021-06-13 07:32:04,512 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2187 conditions, 599 events. 192/599 cut-off events. For 2854/5027 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3238 event pairs, 9 based on Foata normal form. 21/589 useless extension candidates. Maximal degree in co-relation 2125. Up to 149 conditions per place. [2021-06-13 07:32:04,514 INFO L132 encePairwiseOnDemand]: 84/98 looper letters, 21 selfloop transitions, 14 changer transitions 54/151 dead transitions. [2021-06-13 07:32:04,515 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 151 transitions, 1158 flow [2021-06-13 07:32:04,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-13 07:32:04,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-06-13 07:32:04,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 911 transitions. [2021-06-13 07:32:04,516 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8450834879406308 [2021-06-13 07:32:04,516 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 911 transitions. [2021-06-13 07:32:04,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 911 transitions. [2021-06-13 07:32:04,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:32:04,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 911 transitions. [2021-06-13 07:32:04,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 82.81818181818181) internal successors, (911), 11 states have internal predecessors, (911), 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) [2021-06-13 07:32:04,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 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) [2021-06-13 07:32:04,520 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 98.0) internal successors, (1176), 12 states have internal predecessors, (1176), 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) [2021-06-13 07:32:04,520 INFO L185 Difference]: Start difference. First operand has 123 places, 87 transitions, 347 flow. Second operand 11 states and 911 transitions. [2021-06-13 07:32:04,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 151 transitions, 1158 flow [2021-06-13 07:32:04,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 151 transitions, 1014 flow, removed 30 selfloop flow, removed 12 redundant places. [2021-06-13 07:32:04,525 INFO L241 Difference]: Finished difference. Result has 120 places, 87 transitions, 353 flow [2021-06-13 07:32:04,525 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=353, PETRI_PLACES=120, PETRI_TRANSITIONS=87} [2021-06-13 07:32:04,525 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 28 predicate places. [2021-06-13 07:32:04,526 INFO L482 AbstractCegarLoop]: Abstraction has has 120 places, 87 transitions, 353 flow [2021-06-13 07:32:04,526 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 78.75) internal successors, (630), 8 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:04,526 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:32:04,526 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:32:04,526 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-13 07:32:04,526 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:32:04,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:32:04,526 INFO L82 PathProgramCache]: Analyzing trace with hash 483545202, now seen corresponding path program 1 times [2021-06-13 07:32:04,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:32:04,527 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100022605] [2021-06-13 07:32:04,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:32:04,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:32:04,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:04,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:04,570 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-13 07:32:04,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:32:04,578 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:32:04,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:32:04,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:04,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:04,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:04,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:32:04,609 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:32:04,609 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100022605] [2021-06-13 07:32:04,609 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100022605] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:32:04,609 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:32:04,609 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:32:04,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793176023] [2021-06-13 07:32:04,610 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:32:04,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:32:04,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:32:04,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:32:04,612 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2021-06-13 07:32:04,612 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 87 transitions, 353 flow. Second operand has 7 states, 7 states have (on average 80.85714285714286) internal successors, (566), 7 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:04,612 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:32:04,612 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2021-06-13 07:32:04,612 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:32:04,733 INFO L129 PetriNetUnfolder]: 55/300 cut-off events. [2021-06-13 07:32:04,733 INFO L130 PetriNetUnfolder]: For 1070/1590 co-relation queries the response was YES. [2021-06-13 07:32:04,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 994 conditions, 300 events. 55/300 cut-off events. For 1070/1590 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1383 event pairs, 16 based on Foata normal form. 15/306 useless extension candidates. Maximal degree in co-relation 933. Up to 64 conditions per place. [2021-06-13 07:32:04,735 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 18 selfloop transitions, 12 changer transitions 17/111 dead transitions. [2021-06-13 07:32:04,735 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 111 transitions, 655 flow [2021-06-13 07:32:04,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 07:32:04,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-13 07:32:04,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 833 transitions. [2021-06-13 07:32:04,737 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.85 [2021-06-13 07:32:04,737 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 833 transitions. [2021-06-13 07:32:04,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 833 transitions. [2021-06-13 07:32:04,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:32:04,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 833 transitions. [2021-06-13 07:32:04,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 83.3) internal successors, (833), 10 states have internal predecessors, (833), 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) [2021-06-13 07:32:04,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 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) [2021-06-13 07:32:04,741 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 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) [2021-06-13 07:32:04,741 INFO L185 Difference]: Start difference. First operand has 120 places, 87 transitions, 353 flow. Second operand 10 states and 833 transitions. [2021-06-13 07:32:04,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 111 transitions, 655 flow [2021-06-13 07:32:04,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 111 transitions, 575 flow, removed 24 selfloop flow, removed 11 redundant places. [2021-06-13 07:32:04,745 INFO L241 Difference]: Finished difference. Result has 120 places, 89 transitions, 380 flow [2021-06-13 07:32:04,745 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=380, PETRI_PLACES=120, PETRI_TRANSITIONS=89} [2021-06-13 07:32:04,745 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 28 predicate places. [2021-06-13 07:32:04,745 INFO L482 AbstractCegarLoop]: Abstraction has has 120 places, 89 transitions, 380 flow [2021-06-13 07:32:04,746 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 80.85714285714286) internal successors, (566), 7 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:32:04,746 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:32:04,746 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:32:04,746 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-13 07:32:04,746 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:32:04,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:32:04,746 INFO L82 PathProgramCache]: Analyzing trace with hash -712143394, now seen corresponding path program 1 times [2021-06-13 07:32:04,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:32:04,747 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83511691] [2021-06-13 07:32:04,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:32:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:32:04,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:04,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:04,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:04,821 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-13 07:32:04,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:32:04,831 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:32:04,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:32:04,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:04,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:04,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:04,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:04,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:32:04,860 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:32:04,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83511691] [2021-06-13 07:32:04,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83511691] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:32:04,861 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:32:04,861 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 07:32:04,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851667159] [2021-06-13 07:32:04,861 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 07:32:04,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:32:04,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 07:32:04,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-06-13 07:32:04,862 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 98 [2021-06-13 07:32:04,863 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 89 transitions, 380 flow. Second operand has 8 states, 8 states have (on average 80.625) internal successors, (645), 8 states have internal predecessors, (645), 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) [2021-06-13 07:32:04,863 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:32:04,863 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 98 [2021-06-13 07:32:04,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:32:04,961 INFO L129 PetriNetUnfolder]: 52/337 cut-off events. [2021-06-13 07:32:04,962 INFO L130 PetriNetUnfolder]: For 1373/2209 co-relation queries the response was YES. [2021-06-13 07:32:04,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1059 conditions, 337 events. 52/337 cut-off events. For 1373/2209 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1710 event pairs, 16 based on Foata normal form. 19/348 useless extension candidates. Maximal degree in co-relation 998. Up to 60 conditions per place. [2021-06-13 07:32:04,964 INFO L132 encePairwiseOnDemand]: 88/98 looper letters, 18 selfloop transitions, 9 changer transitions 23/114 dead transitions. [2021-06-13 07:32:04,964 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 114 transitions, 706 flow [2021-06-13 07:32:04,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-13 07:32:04,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-13 07:32:04,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 672 transitions. [2021-06-13 07:32:04,966 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2021-06-13 07:32:04,966 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 672 transitions. [2021-06-13 07:32:04,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 672 transitions. [2021-06-13 07:32:04,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:32:04,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 672 transitions. [2021-06-13 07:32:04,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 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) [2021-06-13 07:32:04,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 98.0) internal successors, (882), 9 states have internal predecessors, (882), 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) [2021-06-13 07:32:04,969 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 98.0) internal successors, (882), 9 states have internal predecessors, (882), 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) [2021-06-13 07:32:04,969 INFO L185 Difference]: Start difference. First operand has 120 places, 89 transitions, 380 flow. Second operand 8 states and 672 transitions. [2021-06-13 07:32:04,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 114 transitions, 706 flow [2021-06-13 07:32:04,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 114 transitions, 649 flow, removed 20 selfloop flow, removed 7 redundant places. [2021-06-13 07:32:04,974 INFO L241 Difference]: Finished difference. Result has 118 places, 86 transitions, 349 flow [2021-06-13 07:32:04,975 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=349, PETRI_PLACES=118, PETRI_TRANSITIONS=86} [2021-06-13 07:32:04,975 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 26 predicate places. [2021-06-13 07:32:04,975 INFO L482 AbstractCegarLoop]: Abstraction has has 118 places, 86 transitions, 349 flow [2021-06-13 07:32:04,975 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 80.625) internal successors, (645), 8 states have internal predecessors, (645), 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) [2021-06-13 07:32:04,975 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:32:04,975 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:32:04,975 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-13 07:32:04,976 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:32:04,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:32:04,976 INFO L82 PathProgramCache]: Analyzing trace with hash 916837820, now seen corresponding path program 2 times [2021-06-13 07:32:04,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:32:04,976 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593211558] [2021-06-13 07:32:04,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:32:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:32:05,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:05,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:05,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:05,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:05,034 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-13 07:32:05,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:32:05,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:05,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 07:32:05,052 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-13 07:32:05,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:05,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:05,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:05,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:32:05,059 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:32:05,059 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593211558] [2021-06-13 07:32:05,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593211558] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:32:05,059 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:32:05,059 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-13 07:32:05,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857933447] [2021-06-13 07:32:05,060 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-13 07:32:05,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:32:05,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-13 07:32:05,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-13 07:32:05,061 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-06-13 07:32:05,061 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 86 transitions, 349 flow. Second operand has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 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) [2021-06-13 07:32:05,061 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:32:05,061 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-06-13 07:32:05,061 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:32:05,336 INFO L129 PetriNetUnfolder]: 1300/2504 cut-off events. [2021-06-13 07:32:05,337 INFO L130 PetriNetUnfolder]: For 1156/1268 co-relation queries the response was YES. [2021-06-13 07:32:05,345 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5190 conditions, 2504 events. 1300/2504 cut-off events. For 1156/1268 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 18637 event pairs, 86 based on Foata normal form. 0/2214 useless extension candidates. Maximal degree in co-relation 5132. Up to 845 conditions per place. [2021-06-13 07:32:05,351 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 29 selfloop transitions, 20 changer transitions 0/123 dead transitions. [2021-06-13 07:32:05,351 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 123 transitions, 521 flow [2021-06-13 07:32:05,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 07:32:05,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-13 07:32:05,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 881 transitions. [2021-06-13 07:32:05,353 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8989795918367347 [2021-06-13 07:32:05,353 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 881 transitions. [2021-06-13 07:32:05,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 881 transitions. [2021-06-13 07:32:05,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:32:05,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 881 transitions. [2021-06-13 07:32:05,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 88.1) internal successors, (881), 10 states have internal predecessors, (881), 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) [2021-06-13 07:32:05,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 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) [2021-06-13 07:32:05,357 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 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) [2021-06-13 07:32:05,357 INFO L185 Difference]: Start difference. First operand has 118 places, 86 transitions, 349 flow. Second operand 10 states and 881 transitions. [2021-06-13 07:32:05,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 123 transitions, 521 flow [2021-06-13 07:32:05,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 123 transitions, 474 flow, removed 10 selfloop flow, removed 9 redundant places. [2021-06-13 07:32:05,362 INFO L241 Difference]: Finished difference. Result has 121 places, 104 transitions, 445 flow [2021-06-13 07:32:05,362 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=445, PETRI_PLACES=121, PETRI_TRANSITIONS=104} [2021-06-13 07:32:05,362 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 29 predicate places. [2021-06-13 07:32:05,362 INFO L482 AbstractCegarLoop]: Abstraction has has 121 places, 104 transitions, 445 flow [2021-06-13 07:32:05,362 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 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) [2021-06-13 07:32:05,363 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:32:05,363 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:32:05,363 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-13 07:32:05,363 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:32:05,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:32:05,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1441197592, now seen corresponding path program 1 times [2021-06-13 07:32:05,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:32:05,363 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418875866] [2021-06-13 07:32:05,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:32:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:32:05,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:05,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:05,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:05,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:05,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:05,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:05,419 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-13 07:32:05,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:32:05,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:05,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 07:32:05,440 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-13 07:32:05,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:05,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:05,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:05,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:32:05,449 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:32:05,449 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418875866] [2021-06-13 07:32:05,449 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418875866] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:32:05,449 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:32:05,449 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:32:05,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597800685] [2021-06-13 07:32:05,450 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:32:05,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:32:05,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:32:05,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:32:05,451 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-06-13 07:32:05,451 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 104 transitions, 445 flow. Second operand has 7 states, 7 states have (on average 84.14285714285714) internal successors, (589), 7 states have internal predecessors, (589), 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) [2021-06-13 07:32:05,451 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:32:05,451 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-06-13 07:32:05,452 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:32:05,822 INFO L129 PetriNetUnfolder]: 1456/2835 cut-off events. [2021-06-13 07:32:05,822 INFO L130 PetriNetUnfolder]: For 8588/9852 co-relation queries the response was YES. [2021-06-13 07:32:05,835 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10997 conditions, 2835 events. 1456/2835 cut-off events. For 8588/9852 co-relation queries the response was YES. Maximal size of possible extension queue 376. Compared 21932 event pairs, 31 based on Foata normal form. 212/2815 useless extension candidates. Maximal degree in co-relation 10939. Up to 1582 conditions per place. [2021-06-13 07:32:05,843 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 34 selfloop transitions, 38 changer transitions 0/146 dead transitions. [2021-06-13 07:32:05,844 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 146 transitions, 869 flow [2021-06-13 07:32:05,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-13 07:32:05,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-13 07:32:05,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1147 transitions. [2021-06-13 07:32:05,846 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9003139717425431 [2021-06-13 07:32:05,846 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1147 transitions. [2021-06-13 07:32:05,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1147 transitions. [2021-06-13 07:32:05,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:32:05,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1147 transitions. [2021-06-13 07:32:05,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 88.23076923076923) internal successors, (1147), 13 states have internal predecessors, (1147), 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) [2021-06-13 07:32:05,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 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) [2021-06-13 07:32:05,850 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 98.0) internal successors, (1372), 14 states have internal predecessors, (1372), 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) [2021-06-13 07:32:05,850 INFO L185 Difference]: Start difference. First operand has 121 places, 104 transitions, 445 flow. Second operand 13 states and 1147 transitions. [2021-06-13 07:32:05,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 146 transitions, 869 flow [2021-06-13 07:32:05,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 146 transitions, 867 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-13 07:32:05,856 INFO L241 Difference]: Finished difference. Result has 138 places, 124 transitions, 736 flow [2021-06-13 07:32:05,857 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=443, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=736, PETRI_PLACES=138, PETRI_TRANSITIONS=124} [2021-06-13 07:32:05,857 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 46 predicate places. [2021-06-13 07:32:05,857 INFO L482 AbstractCegarLoop]: Abstraction has has 138 places, 124 transitions, 736 flow [2021-06-13 07:32:05,857 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 84.14285714285714) internal successors, (589), 7 states have internal predecessors, (589), 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) [2021-06-13 07:32:05,857 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:32:05,857 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:32:05,857 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-13 07:32:05,857 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:32:05,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:32:05,858 INFO L82 PathProgramCache]: Analyzing trace with hash -375560943, now seen corresponding path program 1 times [2021-06-13 07:32:05,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:32:05,858 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573628789] [2021-06-13 07:32:05,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:32:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:32:05,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:05,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:05,880 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:05,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:05,883 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:05,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:05,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:05,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:05,889 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-13 07:32:05,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:32:05,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:05,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 07:32:05,906 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-13 07:32:05,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:05,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:05,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:05,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:32:05,913 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:32:05,913 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573628789] [2021-06-13 07:32:05,913 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573628789] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:32:05,913 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:32:05,913 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 07:32:05,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636320434] [2021-06-13 07:32:05,913 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 07:32:05,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:32:05,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 07:32:05,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-13 07:32:05,914 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-06-13 07:32:05,915 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 124 transitions, 736 flow. Second operand has 8 states, 8 states have (on average 84.125) internal successors, (673), 8 states have internal predecessors, (673), 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) [2021-06-13 07:32:05,915 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:32:05,915 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-06-13 07:32:05,915 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:32:06,361 INFO L129 PetriNetUnfolder]: 1429/2809 cut-off events. [2021-06-13 07:32:06,361 INFO L130 PetriNetUnfolder]: For 25666/29688 co-relation queries the response was YES. [2021-06-13 07:32:06,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15762 conditions, 2809 events. 1429/2809 cut-off events. For 25666/29688 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 22354 event pairs, 5 based on Foata normal form. 326/2911 useless extension candidates. Maximal degree in co-relation 15696. Up to 1559 conditions per place. [2021-06-13 07:32:06,387 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 28 selfloop transitions, 58 changer transitions 12/172 dead transitions. [2021-06-13 07:32:06,387 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 172 transitions, 1438 flow [2021-06-13 07:32:06,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-13 07:32:06,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-06-13 07:32:06,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1413 transitions. [2021-06-13 07:32:06,390 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9011479591836735 [2021-06-13 07:32:06,390 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1413 transitions. [2021-06-13 07:32:06,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1413 transitions. [2021-06-13 07:32:06,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:32:06,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1413 transitions. [2021-06-13 07:32:06,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 88.3125) internal successors, (1413), 16 states have internal predecessors, (1413), 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) [2021-06-13 07:32:06,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 98.0) internal successors, (1666), 17 states have internal predecessors, (1666), 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) [2021-06-13 07:32:06,396 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 98.0) internal successors, (1666), 17 states have internal predecessors, (1666), 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) [2021-06-13 07:32:06,396 INFO L185 Difference]: Start difference. First operand has 138 places, 124 transitions, 736 flow. Second operand 16 states and 1413 transitions. [2021-06-13 07:32:06,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 172 transitions, 1438 flow [2021-06-13 07:32:06,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 172 transitions, 1335 flow, removed 42 selfloop flow, removed 4 redundant places. [2021-06-13 07:32:06,440 INFO L241 Difference]: Finished difference. Result has 153 places, 150 transitions, 1102 flow [2021-06-13 07:32:06,440 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1102, PETRI_PLACES=153, PETRI_TRANSITIONS=150} [2021-06-13 07:32:06,441 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 61 predicate places. [2021-06-13 07:32:06,441 INFO L482 AbstractCegarLoop]: Abstraction has has 153 places, 150 transitions, 1102 flow [2021-06-13 07:32:06,441 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 84.125) internal successors, (673), 8 states have internal predecessors, (673), 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) [2021-06-13 07:32:06,441 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:32:06,441 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:32:06,441 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-13 07:32:06,442 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:32:06,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:32:06,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1300384034, now seen corresponding path program 1 times [2021-06-13 07:32:06,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:32:06,443 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431419799] [2021-06-13 07:32:06,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:32:06,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:32:06,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:06,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:06,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:06,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:06,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:06,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:06,477 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:32:06,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:32:06,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:06,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:06,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:06,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:06,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:06,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:06,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:32:06,508 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:32:06,508 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431419799] [2021-06-13 07:32:06,508 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431419799] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:32:06,508 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:32:06,508 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:32:06,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517964109] [2021-06-13 07:32:06,508 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:32:06,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:32:06,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:32:06,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:32:06,509 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-06-13 07:32:06,510 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 150 transitions, 1102 flow. Second operand has 7 states, 7 states have (on average 84.57142857142857) internal successors, (592), 7 states have internal predecessors, (592), 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) [2021-06-13 07:32:06,510 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:32:06,510 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-06-13 07:32:06,510 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:32:06,780 INFO L129 PetriNetUnfolder]: 921/2544 cut-off events. [2021-06-13 07:32:06,781 INFO L130 PetriNetUnfolder]: For 18595/19122 co-relation queries the response was YES. [2021-06-13 07:32:06,798 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11538 conditions, 2544 events. 921/2544 cut-off events. For 18595/19122 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 24007 event pairs, 8 based on Foata normal form. 15/2404 useless extension candidates. Maximal degree in co-relation 11466. Up to 866 conditions per place. [2021-06-13 07:32:06,808 INFO L132 encePairwiseOnDemand]: 91/98 looper letters, 15 selfloop transitions, 5 changer transitions 4/158 dead transitions. [2021-06-13 07:32:06,808 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 158 transitions, 1184 flow [2021-06-13 07:32:06,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-13 07:32:06,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-13 07:32:06,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 687 transitions. [2021-06-13 07:32:06,810 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8762755102040817 [2021-06-13 07:32:06,810 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 687 transitions. [2021-06-13 07:32:06,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 687 transitions. [2021-06-13 07:32:06,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:32:06,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 687 transitions. [2021-06-13 07:32:06,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 85.875) internal successors, (687), 8 states have internal predecessors, (687), 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) [2021-06-13 07:32:06,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 98.0) internal successors, (882), 9 states have internal predecessors, (882), 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) [2021-06-13 07:32:06,813 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 98.0) internal successors, (882), 9 states have internal predecessors, (882), 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) [2021-06-13 07:32:06,813 INFO L185 Difference]: Start difference. First operand has 153 places, 150 transitions, 1102 flow. Second operand 8 states and 687 transitions. [2021-06-13 07:32:06,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 158 transitions, 1184 flow [2021-06-13 07:32:07,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 158 transitions, 871 flow, removed 114 selfloop flow, removed 11 redundant places. [2021-06-13 07:32:07,027 INFO L241 Difference]: Finished difference. Result has 153 places, 150 transitions, 808 flow [2021-06-13 07:32:07,027 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=789, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=808, PETRI_PLACES=153, PETRI_TRANSITIONS=150} [2021-06-13 07:32:07,027 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 61 predicate places. [2021-06-13 07:32:07,027 INFO L482 AbstractCegarLoop]: Abstraction has has 153 places, 150 transitions, 808 flow [2021-06-13 07:32:07,028 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 84.57142857142857) internal successors, (592), 7 states have internal predecessors, (592), 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) [2021-06-13 07:32:07,028 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:32:07,028 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:32:07,028 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-13 07:32:07,028 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:32:07,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:32:07,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1819454912, now seen corresponding path program 2 times [2021-06-13 07:32:07,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:32:07,029 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559140111] [2021-06-13 07:32:07,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:32:07,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:32:07,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:07,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:07,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:07,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:07,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:07,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:07,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:07,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:07,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:07,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:07,068 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-13 07:32:07,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:32:07,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:07,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 07:32:07,087 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-13 07:32:07,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:07,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:07,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:07,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:32:07,096 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:32:07,096 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559140111] [2021-06-13 07:32:07,096 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559140111] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:32:07,096 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:32:07,096 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-13 07:32:07,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315741645] [2021-06-13 07:32:07,096 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-13 07:32:07,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:32:07,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-13 07:32:07,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-13 07:32:07,097 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 98 [2021-06-13 07:32:07,098 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 150 transitions, 808 flow. Second operand has 9 states, 9 states have (on average 84.11111111111111) internal successors, (757), 9 states have internal predecessors, (757), 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) [2021-06-13 07:32:07,098 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:32:07,098 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 98 [2021-06-13 07:32:07,098 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:32:07,588 INFO L129 PetriNetUnfolder]: 1472/3049 cut-off events. [2021-06-13 07:32:07,588 INFO L130 PetriNetUnfolder]: For 6246/7821 co-relation queries the response was YES. [2021-06-13 07:32:07,602 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10957 conditions, 3049 events. 1472/3049 cut-off events. For 6246/7821 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 26187 event pairs, 1 based on Foata normal form. 338/3124 useless extension candidates. Maximal degree in co-relation 10923. Up to 468 conditions per place. [2021-06-13 07:32:07,607 INFO L132 encePairwiseOnDemand]: 87/98 looper letters, 22 selfloop transitions, 63 changer transitions 26/185 dead transitions. [2021-06-13 07:32:07,607 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 185 transitions, 1269 flow [2021-06-13 07:32:07,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-13 07:32:07,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-06-13 07:32:07,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1659 transitions. [2021-06-13 07:32:07,608 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8909774436090225 [2021-06-13 07:32:07,608 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1659 transitions. [2021-06-13 07:32:07,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1659 transitions. [2021-06-13 07:32:07,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:32:07,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1659 transitions. [2021-06-13 07:32:07,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 87.3157894736842) internal successors, (1659), 19 states have internal predecessors, (1659), 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) [2021-06-13 07:32:07,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 98.0) internal successors, (1960), 20 states have internal predecessors, (1960), 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) [2021-06-13 07:32:07,613 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 98.0) internal successors, (1960), 20 states have internal predecessors, (1960), 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) [2021-06-13 07:32:07,613 INFO L185 Difference]: Start difference. First operand has 153 places, 150 transitions, 808 flow. Second operand 19 states and 1659 transitions. [2021-06-13 07:32:07,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 185 transitions, 1269 flow [2021-06-13 07:32:07,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 185 transitions, 1232 flow, removed 12 selfloop flow, removed 7 redundant places. [2021-06-13 07:32:07,665 INFO L241 Difference]: Finished difference. Result has 168 places, 149 transitions, 942 flow [2021-06-13 07:32:07,665 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=771, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=942, PETRI_PLACES=168, PETRI_TRANSITIONS=149} [2021-06-13 07:32:07,665 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 76 predicate places. [2021-06-13 07:32:07,665 INFO L482 AbstractCegarLoop]: Abstraction has has 168 places, 149 transitions, 942 flow [2021-06-13 07:32:07,666 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 84.11111111111111) internal successors, (757), 9 states have internal predecessors, (757), 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) [2021-06-13 07:32:07,666 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:32:07,666 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-13 07:32:07,666 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-13 07:32:07,666 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:32:07,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:32:07,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1930403787, now seen corresponding path program 1 times [2021-06-13 07:32:07,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:32:07,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998270607] [2021-06-13 07:32:07,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:32:07,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:32:07,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:07,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:07,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:07,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:32:07,690 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-13 07:32:07,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:32:07,698 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:32:07,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:32:07,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:07,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:07,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:07,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:32:07,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:32:07,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:32:07,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 07:32:07,723 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:32:07,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998270607] [2021-06-13 07:32:07,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998270607] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:32:07,724 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:32:07,724 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:32:07,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951170761] [2021-06-13 07:32:07,724 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:32:07,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:32:07,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:32:07,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:32:07,725 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 98 [2021-06-13 07:32:07,725 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 149 transitions, 942 flow. Second operand has 7 states, 7 states have (on average 79.42857142857143) internal successors, (556), 7 states have internal predecessors, (556), 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) [2021-06-13 07:32:07,725 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:32:07,725 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 98 [2021-06-13 07:32:07,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:32:08,022 INFO L129 PetriNetUnfolder]: 1037/2839 cut-off events. [2021-06-13 07:32:08,022 INFO L130 PetriNetUnfolder]: For 7895/8158 co-relation queries the response was YES. [2021-06-13 07:32:08,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9688 conditions, 2839 events. 1037/2839 cut-off events. For 7895/8158 co-relation queries the response was YES. Maximal size of possible extension queue 432. Compared 28515 event pairs, 0 based on Foata normal form. 8/2663 useless extension candidates. Maximal degree in co-relation 9610. Up to 351 conditions per place. [2021-06-13 07:32:08,040 INFO L132 encePairwiseOnDemand]: 85/98 looper letters, 0 selfloop transitions, 0 changer transitions 154/154 dead transitions. [2021-06-13 07:32:08,040 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 154 transitions, 1055 flow [2021-06-13 07:32:08,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-13 07:32:08,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-06-13 07:32:08,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 642 transitions. [2021-06-13 07:32:08,040 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8188775510204082 [2021-06-13 07:32:08,040 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 642 transitions. [2021-06-13 07:32:08,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 642 transitions. [2021-06-13 07:32:08,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:32:08,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 642 transitions. [2021-06-13 07:32:08,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 80.25) internal successors, (642), 8 states have internal predecessors, (642), 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) [2021-06-13 07:32:08,042 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 98.0) internal successors, (882), 9 states have internal predecessors, (882), 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) [2021-06-13 07:32:08,042 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 98.0) internal successors, (882), 9 states have internal predecessors, (882), 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) [2021-06-13 07:32:08,042 INFO L185 Difference]: Start difference. First operand has 168 places, 149 transitions, 942 flow. Second operand 8 states and 642 transitions. [2021-06-13 07:32:08,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 154 transitions, 1055 flow [2021-06-13 07:32:08,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 154 transitions, 916 flow, removed 16 selfloop flow, removed 18 redundant places. [2021-06-13 07:32:08,131 INFO L241 Difference]: Finished difference. Result has 152 places, 0 transitions, 0 flow [2021-06-13 07:32:08,131 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=813, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=152, PETRI_TRANSITIONS=0} [2021-06-13 07:32:08,132 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 60 predicate places. [2021-06-13 07:32:08,132 INFO L482 AbstractCegarLoop]: Abstraction has has 152 places, 0 transitions, 0 flow [2021-06-13 07:32:08,132 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 79.42857142857143) internal successors, (556), 7 states have internal predecessors, (556), 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) [2021-06-13 07:32:08,132 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-13 07:32:08,134 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-13 07:32:08,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.06 07:32:08 BasicIcfg [2021-06-13 07:32:08,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-13 07:32:08,136 INFO L168 Benchmark]: Toolchain (without parser) took 6053.89 ms. Allocated memory was 192.9 MB in the beginning and 384.8 MB in the end (delta: 191.9 MB). Free memory was 155.1 MB in the beginning and 204.8 MB in the end (delta: -49.7 MB). Peak memory consumption was 143.5 MB. Max. memory is 8.0 GB. [2021-06-13 07:32:08,136 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 192.9 MB. Free memory is still 173.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 07:32:08,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.92 ms. Allocated memory is still 192.9 MB. Free memory was 155.0 MB in the beginning and 153.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 12.2 MB. Max. memory is 8.0 GB. [2021-06-13 07:32:08,136 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.17 ms. Allocated memory is still 192.9 MB. Free memory was 153.1 MB in the beginning and 151.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-13 07:32:08,137 INFO L168 Benchmark]: Boogie Preprocessor took 14.11 ms. Allocated memory is still 192.9 MB. Free memory was 151.5 MB in the beginning and 150.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-13 07:32:08,137 INFO L168 Benchmark]: RCFGBuilder took 359.69 ms. Allocated memory is still 192.9 MB. Free memory was 150.0 MB in the beginning and 123.8 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2021-06-13 07:32:08,137 INFO L168 Benchmark]: TraceAbstraction took 5262.55 ms. Allocated memory was 192.9 MB in the beginning and 384.8 MB in the end (delta: 191.9 MB). Free memory was 123.2 MB in the beginning and 204.8 MB in the end (delta: -81.6 MB). Peak memory consumption was 110.3 MB. Max. memory is 8.0 GB. [2021-06-13 07:32:08,138 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 192.9 MB. Free memory is still 173.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 386.92 ms. Allocated memory is still 192.9 MB. Free memory was 155.0 MB in the beginning and 153.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 12.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 26.17 ms. Allocated memory is still 192.9 MB. Free memory was 153.1 MB in the beginning and 151.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.11 ms. Allocated memory is still 192.9 MB. Free memory was 151.5 MB in the beginning and 150.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 359.69 ms. Allocated memory is still 192.9 MB. Free memory was 150.0 MB in the beginning and 123.8 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5262.55 ms. Allocated memory was 192.9 MB in the beginning and 384.8 MB in the end (delta: 191.9 MB). Free memory was 123.2 MB in the beginning and 204.8 MB in the end (delta: -81.6 MB). Peak memory consumption was 110.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 127 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 5193.6ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 3881.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 38.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 191 SDtfs, 476 SDslu, 702 SDs, 0 SdLazy, 726 SolverSat, 179 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 430.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 1228.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1102occurred in iteration=9, InterpolantAutomatonStates: 142, 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: 28.1ms SsaConstructionTime, 173.3ms SatisfiabilityAnalysisTime, 921.9ms InterpolantComputationTime, 763 NumberOfCodeBlocks, 763 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 751 ConstructedInterpolants, 0 QuantifiedInterpolants, 3585 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...