/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/safe014_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 07:30:31,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 07:30:31,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 07:30:31,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-13 07:30:31,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-13 07:30:31,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-13 07:30:31,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-13 07:30:32,002 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 07:30:32,038 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 07:30:32,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 07:30:32,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 07:30:32,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 07:30:32,042 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 07:30:32,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 07:30:32,043 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 07:30:32,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 07:30:32,043 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 07:30:32,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 07:30:32,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 07:30:32,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 07:30:32,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 07:30:32,045 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 07:30:32,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 07:30:32,045 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 07:30:32,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 07:30:32,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 07:30:32,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 07:30:32,045 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 07:30:32,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 07:30:32,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 07:30:32,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 07:30:32,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 07:30:32,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 07:30:32,047 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 07:30:32,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 07:30:32,047 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 07:30:32,047 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-13 07:30:32,047 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 07:30:32,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 07:30:32,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 07:30:32,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 07:30:32,364 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-13 07:30:32,365 INFO L275 PluginConnector]: CDTParser initialized [2021-06-13 07:30:32,366 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i [2021-06-13 07:30:32,423 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bbdb391b/711c93a607844d688b15e0a43c1f3888/FLAG491fbb1fc [2021-06-13 07:30:32,885 INFO L306 CDTParser]: Found 1 translation units. [2021-06-13 07:30:32,886 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_tso.oepc.i [2021-06-13 07:30:32,899 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bbdb391b/711c93a607844d688b15e0a43c1f3888/FLAG491fbb1fc [2021-06-13 07:30:33,390 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bbdb391b/711c93a607844d688b15e0a43c1f3888 [2021-06-13 07:30:33,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 07:30:33,393 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-13 07:30:33,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-13 07:30:33,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-13 07:30:33,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-13 07:30:33,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 07:30:33" (1/1) ... [2021-06-13 07:30:33,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23fe2ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:30:33, skipping insertion in model container [2021-06-13 07:30:33,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.06 07:30:33" (1/1) ... [2021-06-13 07:30:33,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-13 07:30:33,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-13 07:30:33,610 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/safe014_tso.oepc.i[950,963] [2021-06-13 07:30:33,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 07:30:33,735 INFO L203 MainTranslator]: Completed pre-run [2021-06-13 07:30:33,748 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/safe014_tso.oepc.i[950,963] [2021-06-13 07:30:33,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-13 07:30:33,871 INFO L208 MainTranslator]: Completed translation [2021-06-13 07:30:33,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:30:33 WrapperNode [2021-06-13 07:30:33,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-13 07:30:33,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 07:30:33,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 07:30:33,874 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 07:30:33,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:30:33" (1/1) ... [2021-06-13 07:30:33,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:30:33" (1/1) ... [2021-06-13 07:30:33,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 07:30:33,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 07:30:33,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 07:30:33,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 07:30:33,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:30:33" (1/1) ... [2021-06-13 07:30:33,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:30:33" (1/1) ... [2021-06-13 07:30:33,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:30:33" (1/1) ... [2021-06-13 07:30:33,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:30:33" (1/1) ... [2021-06-13 07:30:33,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:30:33" (1/1) ... [2021-06-13 07:30:33,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:30:33" (1/1) ... [2021-06-13 07:30:33,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:30:33" (1/1) ... [2021-06-13 07:30:33,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 07:30:33,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 07:30:33,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 07:30:33,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 07:30:33,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:30:33" (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 07:30:34,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-13 07:30:34,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-13 07:30:34,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-13 07:30:34,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-13 07:30:34,036 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-13 07:30:34,037 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-13 07:30:34,037 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-13 07:30:34,038 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-13 07:30:34,038 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-13 07:30:34,038 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-13 07:30:34,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-13 07:30:34,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-13 07:30:34,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 07:30:34,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 07:30:34,039 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 07:30:34,498 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 07:30:34,499 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-13 07:30:34,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 07:30:34 BoogieIcfgContainer [2021-06-13 07:30:34,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 07:30:34,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 07:30:34,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 07:30:34,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 07:30:34,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.06 07:30:33" (1/3) ... [2021-06-13 07:30:34,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e07c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 07:30:34, skipping insertion in model container [2021-06-13 07:30:34,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.06 07:30:33" (2/3) ... [2021-06-13 07:30:34,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e07c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 07:30:34, skipping insertion in model container [2021-06-13 07:30:34,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 07:30:34" (3/3) ... [2021-06-13 07:30:34,508 INFO L111 eAbstractionObserver]: Analyzing ICFG safe014_tso.oepc.i [2021-06-13 07:30:34,516 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 07:30:34,516 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 07:30:34,517 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 07:30:34,552 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,552 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,553 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,553 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,553 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,553 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,553 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,556 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,556 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,556 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,556 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,557 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,557 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,557 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,557 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,559 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,559 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,559 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,559 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,563 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,563 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,563 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,564 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,564 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,565 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,565 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,565 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,565 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,565 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,566 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,566 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,566 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,566 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,567 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,567 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,569 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,570 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,570 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,570 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,574 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,574 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,575 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,575 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,577 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,577 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,577 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,577 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 07:30:34,581 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-13 07:30:34,601 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-13 07:30:34,632 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 07:30:34,632 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 07:30:34,632 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 07:30:34,632 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 07:30:34,632 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 07:30:34,632 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 07:30:34,633 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 07:30:34,633 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 07:30:34,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 183 flow [2021-06-13 07:30:34,698 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2021-06-13 07:30:34,698 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 07:30:34,708 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-06-13 07:30:34,708 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 84 transitions, 183 flow [2021-06-13 07:30:34,716 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 69 transitions, 147 flow [2021-06-13 07:30:34,743 INFO L129 PetriNetUnfolder]: 1/68 cut-off events. [2021-06-13 07:30:34,743 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 07:30:34,743 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:30:34,744 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] [2021-06-13 07:30:34,745 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:30:34,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:30:34,750 INFO L82 PathProgramCache]: Analyzing trace with hash 663437649, now seen corresponding path program 1 times [2021-06-13 07:30:34,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:30:34,758 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795923026] [2021-06-13 07:30:34,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:30:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:30:35,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:35,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:30:35,053 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-13 07:30:35,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:30:35,078 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:30:35,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:30:35,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:35,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:30:35,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:35,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:30:35,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:35,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:30:35,125 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 07:30:35,126 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:30:35,126 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795923026] [2021-06-13 07:30:35,127 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795923026] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:30:35,127 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:30:35,127 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-13 07:30:35,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840064735] [2021-06-13 07:30:35,135 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-13 07:30:35,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:30:35,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-13 07:30:35,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-13 07:30:35,165 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 84 [2021-06-13 07:30:35,171 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 69 transitions, 147 flow. Second operand has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 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 07:30:35,173 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:30:35,174 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 84 [2021-06-13 07:30:35,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:30:35,590 INFO L129 PetriNetUnfolder]: 353/917 cut-off events. [2021-06-13 07:30:35,590 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-13 07:30:35,594 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1525 conditions, 917 events. 353/917 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 5969 event pairs, 69 based on Foata normal form. 29/914 useless extension candidates. Maximal degree in co-relation 1491. Up to 215 conditions per place. [2021-06-13 07:30:35,605 INFO L132 encePairwiseOnDemand]: 71/84 looper letters, 16 selfloop transitions, 8 changer transitions 37/114 dead transitions. [2021-06-13 07:30:35,605 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 114 transitions, 359 flow [2021-06-13 07:30:35,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-13 07:30:35,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-13 07:30:35,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 650 transitions. [2021-06-13 07:30:35,625 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8597883597883598 [2021-06-13 07:30:35,625 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 650 transitions. [2021-06-13 07:30:35,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 650 transitions. [2021-06-13 07:30:35,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:30:35,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 650 transitions. [2021-06-13 07:30:35,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 72.22222222222223) internal successors, (650), 9 states have internal predecessors, (650), 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 07:30:35,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 84.0) internal successors, (840), 10 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:30:35,641 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 84.0) internal successors, (840), 10 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:30:35,642 INFO L185 Difference]: Start difference. First operand has 78 places, 69 transitions, 147 flow. Second operand 9 states and 650 transitions. [2021-06-13 07:30:35,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 114 transitions, 359 flow [2021-06-13 07:30:35,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 114 transitions, 356 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-13 07:30:35,650 INFO L241 Difference]: Finished difference. Result has 91 places, 73 transitions, 238 flow [2021-06-13 07:30:35,652 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=238, PETRI_PLACES=91, PETRI_TRANSITIONS=73} [2021-06-13 07:30:35,653 INFO L335 CegarLoopForPetriNet]: 78 programPoint places, 13 predicate places. [2021-06-13 07:30:35,653 INFO L482 AbstractCegarLoop]: Abstraction has has 91 places, 73 transitions, 238 flow [2021-06-13 07:30:35,654 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 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 07:30:35,654 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:30:35,654 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] [2021-06-13 07:30:35,654 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 07:30:35,654 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:30:35,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:30:35,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1304909936, now seen corresponding path program 1 times [2021-06-13 07:30:35,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:30:35,655 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242326214] [2021-06-13 07:30:35,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:30:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:30:35,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:35,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:30:35,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:35,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:30:35,737 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-13 07:30:35,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:30:35,750 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:30:35,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:30:35,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:35,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:30:35,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:35,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:30:35,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:35,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:30:35,793 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 07:30:35,793 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:30:35,793 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242326214] [2021-06-13 07:30:35,793 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242326214] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:30:35,793 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:30:35,794 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:30:35,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973378592] [2021-06-13 07:30:35,795 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:30:35,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:30:35,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:30:35,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:30:35,797 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 84 [2021-06-13 07:30:35,797 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 73 transitions, 238 flow. Second operand has 7 states, 7 states have (on average 64.71428571428571) internal successors, (453), 7 states have internal predecessors, (453), 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 07:30:35,798 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:30:35,798 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 84 [2021-06-13 07:30:35,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:30:36,302 INFO L129 PetriNetUnfolder]: 612/1429 cut-off events. [2021-06-13 07:30:36,302 INFO L130 PetriNetUnfolder]: For 2524/3379 co-relation queries the response was YES. [2021-06-13 07:30:36,308 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4379 conditions, 1429 events. 612/1429 cut-off events. For 2524/3379 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 9503 event pairs, 22 based on Foata normal form. 36/1433 useless extension candidates. Maximal degree in co-relation 4333. Up to 301 conditions per place. [2021-06-13 07:30:36,316 INFO L132 encePairwiseOnDemand]: 70/84 looper letters, 33 selfloop transitions, 18 changer transitions 83/185 dead transitions. [2021-06-13 07:30:36,316 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 185 transitions, 1264 flow [2021-06-13 07:30:36,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-13 07:30:36,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-06-13 07:30:36,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1181 transitions. [2021-06-13 07:30:36,320 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8270308123249299 [2021-06-13 07:30:36,320 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1181 transitions. [2021-06-13 07:30:36,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1181 transitions. [2021-06-13 07:30:36,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:30:36,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1181 transitions. [2021-06-13 07:30:36,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 69.47058823529412) internal successors, (1181), 17 states have internal predecessors, (1181), 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 07:30:36,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 84.0) internal successors, (1512), 18 states have internal predecessors, (1512), 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 07:30:36,328 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 84.0) internal successors, (1512), 18 states have internal predecessors, (1512), 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 07:30:36,328 INFO L185 Difference]: Start difference. First operand has 91 places, 73 transitions, 238 flow. Second operand 17 states and 1181 transitions. [2021-06-13 07:30:36,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 185 transitions, 1264 flow [2021-06-13 07:30:36,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 185 transitions, 1166 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-13 07:30:36,339 INFO L241 Difference]: Finished difference. Result has 115 places, 84 transitions, 448 flow [2021-06-13 07:30:36,339 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=448, PETRI_PLACES=115, PETRI_TRANSITIONS=84} [2021-06-13 07:30:36,340 INFO L335 CegarLoopForPetriNet]: 78 programPoint places, 37 predicate places. [2021-06-13 07:30:36,340 INFO L482 AbstractCegarLoop]: Abstraction has has 115 places, 84 transitions, 448 flow [2021-06-13 07:30:36,341 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 64.71428571428571) internal successors, (453), 7 states have internal predecessors, (453), 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 07:30:36,341 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:30:36,341 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] [2021-06-13 07:30:36,341 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-13 07:30:36,341 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:30:36,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:30:36,342 INFO L82 PathProgramCache]: Analyzing trace with hash 2100772178, now seen corresponding path program 1 times [2021-06-13 07:30:36,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:30:36,342 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131613345] [2021-06-13 07:30:36,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:30:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:30:36,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:36,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:30:36,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:36,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:30:36,406 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-13 07:30:36,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:30:36,423 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:30:36,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:30:36,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:36,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:30:36,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:36,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:30:36,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:36,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:30:36,471 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 07:30:36,471 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:30:36,472 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131613345] [2021-06-13 07:30:36,472 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131613345] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:30:36,472 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:30:36,472 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:30:36,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142896197] [2021-06-13 07:30:36,473 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:30:36,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:30:36,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:30:36,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:30:36,475 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 84 [2021-06-13 07:30:36,479 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 84 transitions, 448 flow. Second operand has 7 states, 7 states have (on average 66.57142857142857) internal successors, (466), 7 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:30:36,479 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:30:36,479 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 84 [2021-06-13 07:30:36,479 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:30:36,840 INFO L129 PetriNetUnfolder]: 297/871 cut-off events. [2021-06-13 07:30:36,845 INFO L130 PetriNetUnfolder]: For 7583/8558 co-relation queries the response was YES. [2021-06-13 07:30:36,851 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3963 conditions, 871 events. 297/871 cut-off events. For 7583/8558 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 5754 event pairs, 37 based on Foata normal form. 60/913 useless extension candidates. Maximal degree in co-relation 3898. Up to 203 conditions per place. [2021-06-13 07:30:36,858 INFO L132 encePairwiseOnDemand]: 71/84 looper letters, 26 selfloop transitions, 16 changer transitions 76/172 dead transitions. [2021-06-13 07:30:36,858 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 172 transitions, 1708 flow [2021-06-13 07:30:36,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-13 07:30:36,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-13 07:30:36,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 911 transitions. [2021-06-13 07:30:36,861 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8342490842490843 [2021-06-13 07:30:36,861 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 911 transitions. [2021-06-13 07:30:36,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 911 transitions. [2021-06-13 07:30:36,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:30:36,862 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 911 transitions. [2021-06-13 07:30:36,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 70.07692307692308) internal successors, (911), 13 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 07:30:36,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 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 07:30:36,866 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 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 07:30:36,866 INFO L185 Difference]: Start difference. First operand has 115 places, 84 transitions, 448 flow. Second operand 13 states and 911 transitions. [2021-06-13 07:30:36,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 172 transitions, 1708 flow [2021-06-13 07:30:36,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 172 transitions, 1502 flow, removed 103 selfloop flow, removed 9 redundant places. [2021-06-13 07:30:36,885 INFO L241 Difference]: Finished difference. Result has 118 places, 89 transitions, 560 flow [2021-06-13 07:30:36,885 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=560, PETRI_PLACES=118, PETRI_TRANSITIONS=89} [2021-06-13 07:30:36,886 INFO L335 CegarLoopForPetriNet]: 78 programPoint places, 40 predicate places. [2021-06-13 07:30:36,886 INFO L482 AbstractCegarLoop]: Abstraction has has 118 places, 89 transitions, 560 flow [2021-06-13 07:30:36,886 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 66.57142857142857) internal successors, (466), 7 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 07:30:36,886 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:30:36,886 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] [2021-06-13 07:30:36,886 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-13 07:30:36,886 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:30:36,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:30:36,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1699854222, now seen corresponding path program 1 times [2021-06-13 07:30:36,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:30:36,888 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740290052] [2021-06-13 07:30:36,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:30:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:30:36,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:36,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:30:36,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:36,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:30:36,997 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-13 07:30:36,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-13 07:30:37,010 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:30:37,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:30:37,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:37,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:30:37,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:37,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:30:37,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:37,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:30:37,051 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 07:30:37,051 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:30:37,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740290052] [2021-06-13 07:30:37,051 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740290052] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:30:37,051 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:30:37,052 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:30:37,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128111939] [2021-06-13 07:30:37,052 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:30:37,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:30:37,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:30:37,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:30:37,056 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 84 [2021-06-13 07:30:37,057 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 89 transitions, 560 flow. Second operand has 7 states, 7 states have (on average 66.71428571428571) internal successors, (467), 7 states have internal predecessors, (467), 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 07:30:37,057 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:30:37,057 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 84 [2021-06-13 07:30:37,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:30:37,378 INFO L129 PetriNetUnfolder]: 168/629 cut-off events. [2021-06-13 07:30:37,378 INFO L130 PetriNetUnfolder]: For 3908/5002 co-relation queries the response was YES. [2021-06-13 07:30:37,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2629 conditions, 629 events. 168/629 cut-off events. For 3908/5002 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4006 event pairs, 13 based on Foata normal form. 35/652 useless extension candidates. Maximal degree in co-relation 2553. Up to 144 conditions per place. [2021-06-13 07:30:37,386 INFO L132 encePairwiseOnDemand]: 74/84 looper letters, 29 selfloop transitions, 19 changer transitions 52/154 dead transitions. [2021-06-13 07:30:37,386 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 154 transitions, 1570 flow [2021-06-13 07:30:37,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-13 07:30:37,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-13 07:30:37,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 908 transitions. [2021-06-13 07:30:37,390 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8315018315018315 [2021-06-13 07:30:37,390 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 908 transitions. [2021-06-13 07:30:37,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 908 transitions. [2021-06-13 07:30:37,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:30:37,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 908 transitions. [2021-06-13 07:30:37,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 69.84615384615384) internal successors, (908), 13 states have internal predecessors, (908), 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 07:30:37,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 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 07:30:37,395 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 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 07:30:37,396 INFO L185 Difference]: Start difference. First operand has 118 places, 89 transitions, 560 flow. Second operand 13 states and 908 transitions. [2021-06-13 07:30:37,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 154 transitions, 1570 flow [2021-06-13 07:30:37,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 154 transitions, 1456 flow, removed 53 selfloop flow, removed 5 redundant places. [2021-06-13 07:30:37,416 INFO L241 Difference]: Finished difference. Result has 128 places, 95 transitions, 719 flow [2021-06-13 07:30:37,416 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=525, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=719, PETRI_PLACES=128, PETRI_TRANSITIONS=95} [2021-06-13 07:30:37,416 INFO L335 CegarLoopForPetriNet]: 78 programPoint places, 50 predicate places. [2021-06-13 07:30:37,416 INFO L482 AbstractCegarLoop]: Abstraction has has 128 places, 95 transitions, 719 flow [2021-06-13 07:30:37,418 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 66.71428571428571) internal successors, (467), 7 states have internal predecessors, (467), 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 07:30:37,418 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:30:37,418 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] [2021-06-13 07:30:37,418 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-13 07:30:37,418 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:30:37,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:30:37,419 INFO L82 PathProgramCache]: Analyzing trace with hash 91547891, now seen corresponding path program 1 times [2021-06-13 07:30:37,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:30:37,420 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684845933] [2021-06-13 07:30:37,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:30:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:30:37,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:37,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:30:37,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:37,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:30:37,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:37,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:30:37,515 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:30:37,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:30:37,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:37,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:30:37,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:37,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:30:37,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:37,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:30:37,558 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 07:30:37,558 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:30:37,558 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684845933] [2021-06-13 07:30:37,558 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684845933] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:30:37,558 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:30:37,559 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:30:37,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751363358] [2021-06-13 07:30:37,559 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:30:37,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:30:37,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:30:37,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:30:37,560 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 84 [2021-06-13 07:30:37,561 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 95 transitions, 719 flow. Second operand has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 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 07:30:37,561 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:30:37,561 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 84 [2021-06-13 07:30:37,561 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:30:37,749 INFO L129 PetriNetUnfolder]: 92/377 cut-off events. [2021-06-13 07:30:37,749 INFO L130 PetriNetUnfolder]: For 3158/4013 co-relation queries the response was YES. [2021-06-13 07:30:37,752 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1607 conditions, 377 events. 92/377 cut-off events. For 3158/4013 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1876 event pairs, 6 based on Foata normal form. 50/415 useless extension candidates. Maximal degree in co-relation 1551. Up to 85 conditions per place. [2021-06-13 07:30:37,753 INFO L132 encePairwiseOnDemand]: 76/84 looper letters, 6 selfloop transitions, 6 changer transitions 29/109 dead transitions. [2021-06-13 07:30:37,754 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 109 transitions, 889 flow [2021-06-13 07:30:37,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 07:30:37,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-13 07:30:37,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 724 transitions. [2021-06-13 07:30:37,756 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.861904761904762 [2021-06-13 07:30:37,756 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 724 transitions. [2021-06-13 07:30:37,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 724 transitions. [2021-06-13 07:30:37,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:30:37,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 724 transitions. [2021-06-13 07:30:37,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 72.4) internal successors, (724), 10 states have internal predecessors, (724), 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 07:30:37,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 84.0) internal successors, (924), 11 states have internal predecessors, (924), 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 07:30:37,761 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 84.0) internal successors, (924), 11 states have internal predecessors, (924), 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 07:30:37,761 INFO L185 Difference]: Start difference. First operand has 128 places, 95 transitions, 719 flow. Second operand 10 states and 724 transitions. [2021-06-13 07:30:37,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 109 transitions, 889 flow [2021-06-13 07:30:37,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 109 transitions, 791 flow, removed 46 selfloop flow, removed 15 redundant places. [2021-06-13 07:30:37,773 INFO L241 Difference]: Finished difference. Result has 121 places, 80 transitions, 457 flow [2021-06-13 07:30:37,773 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=653, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=457, PETRI_PLACES=121, PETRI_TRANSITIONS=80} [2021-06-13 07:30:37,773 INFO L335 CegarLoopForPetriNet]: 78 programPoint places, 43 predicate places. [2021-06-13 07:30:37,773 INFO L482 AbstractCegarLoop]: Abstraction has has 121 places, 80 transitions, 457 flow [2021-06-13 07:30:37,774 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 71.28571428571429) internal successors, (499), 7 states have internal predecessors, (499), 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 07:30:37,774 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:30:37,774 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 07:30:37,774 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-13 07:30:37,774 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:30:37,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:30:37,775 INFO L82 PathProgramCache]: Analyzing trace with hash 630379868, now seen corresponding path program 1 times [2021-06-13 07:30:37,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:30:37,775 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573877088] [2021-06-13 07:30:37,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:30:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:30:37,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:37,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:30:37,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:37,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:30:37,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:37,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:30:37,815 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:30:37,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:30:37,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:37,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:30:37,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:37,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:30:37,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:37,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:30:37,856 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 07:30:37,856 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:30:37,856 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573877088] [2021-06-13 07:30:37,857 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573877088] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:30:37,857 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:30:37,857 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:30:37,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314607894] [2021-06-13 07:30:37,857 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:30:37,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:30:37,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:30:37,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:30:37,859 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 84 [2021-06-13 07:30:37,860 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 80 transitions, 457 flow. Second operand has 7 states, 7 states have (on average 69.42857142857143) internal successors, (486), 7 states have internal predecessors, (486), 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 07:30:37,860 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:30:37,860 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 84 [2021-06-13 07:30:37,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:30:38,115 INFO L129 PetriNetUnfolder]: 38/245 cut-off events. [2021-06-13 07:30:38,115 INFO L130 PetriNetUnfolder]: For 1472/1607 co-relation queries the response was YES. [2021-06-13 07:30:38,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 998 conditions, 245 events. 38/245 cut-off events. For 1472/1607 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1093 event pairs, 5 based on Foata normal form. 15/259 useless extension candidates. Maximal degree in co-relation 967. Up to 41 conditions per place. [2021-06-13 07:30:38,117 INFO L132 encePairwiseOnDemand]: 77/84 looper letters, 14 selfloop transitions, 8 changer transitions 44/124 dead transitions. [2021-06-13 07:30:38,117 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 124 transitions, 1159 flow [2021-06-13 07:30:38,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-13 07:30:38,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-06-13 07:30:38,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 1210 transitions. [2021-06-13 07:30:38,121 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8473389355742297 [2021-06-13 07:30:38,121 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 1210 transitions. [2021-06-13 07:30:38,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 1210 transitions. [2021-06-13 07:30:38,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:30:38,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 1210 transitions. [2021-06-13 07:30:38,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 71.17647058823529) internal successors, (1210), 17 states have internal predecessors, (1210), 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 07:30:38,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 84.0) internal successors, (1512), 18 states have internal predecessors, (1512), 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 07:30:38,128 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 84.0) internal successors, (1512), 18 states have internal predecessors, (1512), 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 07:30:38,128 INFO L185 Difference]: Start difference. First operand has 121 places, 80 transitions, 457 flow. Second operand 17 states and 1210 transitions. [2021-06-13 07:30:38,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 124 transitions, 1159 flow [2021-06-13 07:30:38,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 124 transitions, 926 flow, removed 70 selfloop flow, removed 17 redundant places. [2021-06-13 07:30:38,139 INFO L241 Difference]: Finished difference. Result has 129 places, 79 transitions, 396 flow [2021-06-13 07:30:38,139 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=396, PETRI_PLACES=129, PETRI_TRANSITIONS=79} [2021-06-13 07:30:38,139 INFO L335 CegarLoopForPetriNet]: 78 programPoint places, 51 predicate places. [2021-06-13 07:30:38,139 INFO L482 AbstractCegarLoop]: Abstraction has has 129 places, 79 transitions, 396 flow [2021-06-13 07:30:38,140 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 69.42857142857143) internal successors, (486), 7 states have internal predecessors, (486), 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 07:30:38,140 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:30:38,140 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] [2021-06-13 07:30:38,140 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-13 07:30:38,140 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:30:38,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:30:38,141 INFO L82 PathProgramCache]: Analyzing trace with hash -2086510620, now seen corresponding path program 1 times [2021-06-13 07:30:38,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:30:38,141 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082529123] [2021-06-13 07:30:38,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:30:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:30:38,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:38,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:30:38,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:38,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:30:38,181 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-13 07:30:38,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:30:38,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:38,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 07:30:38,216 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-13 07:30:38,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:30:38,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:38,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:30:38,229 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 07:30:38,229 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:30:38,229 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082529123] [2021-06-13 07:30:38,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082529123] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:30:38,230 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:30:38,230 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-13 07:30:38,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078245891] [2021-06-13 07:30:38,230 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-13 07:30:38,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:30:38,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-13 07:30:38,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-13 07:30:38,231 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 84 [2021-06-13 07:30:38,232 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 79 transitions, 396 flow. Second operand has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 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 07:30:38,232 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:30:38,232 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 84 [2021-06-13 07:30:38,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:30:38,405 INFO L129 PetriNetUnfolder]: 237/647 cut-off events. [2021-06-13 07:30:38,406 INFO L130 PetriNetUnfolder]: For 658/672 co-relation queries the response was YES. [2021-06-13 07:30:38,409 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1462 conditions, 647 events. 237/647 cut-off events. For 658/672 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 4213 event pairs, 4 based on Foata normal form. 0/607 useless extension candidates. Maximal degree in co-relation 1430. Up to 171 conditions per place. [2021-06-13 07:30:38,411 INFO L132 encePairwiseOnDemand]: 74/84 looper letters, 15 selfloop transitions, 13 changer transitions 13/109 dead transitions. [2021-06-13 07:30:38,412 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 109 transitions, 538 flow [2021-06-13 07:30:38,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-13 07:30:38,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-06-13 07:30:38,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 743 transitions. [2021-06-13 07:30:38,414 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8845238095238095 [2021-06-13 07:30:38,414 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 743 transitions. [2021-06-13 07:30:38,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 743 transitions. [2021-06-13 07:30:38,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:30:38,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 743 transitions. [2021-06-13 07:30:38,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 74.3) internal successors, (743), 10 states have internal predecessors, (743), 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 07:30:38,418 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 84.0) internal successors, (924), 11 states have internal predecessors, (924), 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 07:30:38,418 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 84.0) internal successors, (924), 11 states have internal predecessors, (924), 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 07:30:38,419 INFO L185 Difference]: Start difference. First operand has 129 places, 79 transitions, 396 flow. Second operand 10 states and 743 transitions. [2021-06-13 07:30:38,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 109 transitions, 538 flow [2021-06-13 07:30:38,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 109 transitions, 476 flow, removed 23 selfloop flow, removed 19 redundant places. [2021-06-13 07:30:38,424 INFO L241 Difference]: Finished difference. Result has 111 places, 91 transitions, 432 flow [2021-06-13 07:30:38,424 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=432, PETRI_PLACES=111, PETRI_TRANSITIONS=91} [2021-06-13 07:30:38,424 INFO L335 CegarLoopForPetriNet]: 78 programPoint places, 33 predicate places. [2021-06-13 07:30:38,424 INFO L482 AbstractCegarLoop]: Abstraction has has 111 places, 91 transitions, 432 flow [2021-06-13 07:30:38,425 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 71.16666666666667) internal successors, (427), 6 states have internal predecessors, (427), 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 07:30:38,425 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:30:38,425 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 07:30:38,425 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-13 07:30:38,425 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:30:38,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:30:38,426 INFO L82 PathProgramCache]: Analyzing trace with hash 364717339, now seen corresponding path program 1 times [2021-06-13 07:30:38,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:30:38,426 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357122625] [2021-06-13 07:30:38,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:30:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:30:38,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:38,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:30:38,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:38,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:30:38,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:38,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:30:38,468 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-13 07:30:38,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:30:38,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:38,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 07:30:38,502 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-13 07:30:38,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:30:38,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:38,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:30:38,514 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 07:30:38,514 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:30:38,514 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357122625] [2021-06-13 07:30:38,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357122625] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:30:38,515 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:30:38,515 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:30:38,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509698737] [2021-06-13 07:30:38,515 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:30:38,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:30:38,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:30:38,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:30:38,516 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 84 [2021-06-13 07:30:38,517 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 91 transitions, 432 flow. Second operand has 7 states, 7 states have (on average 71.14285714285714) internal successors, (498), 7 states have internal predecessors, (498), 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 07:30:38,517 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:30:38,517 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 84 [2021-06-13 07:30:38,517 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:30:38,743 INFO L129 PetriNetUnfolder]: 197/610 cut-off events. [2021-06-13 07:30:38,743 INFO L130 PetriNetUnfolder]: For 1161/1445 co-relation queries the response was YES. [2021-06-13 07:30:38,746 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1958 conditions, 610 events. 197/610 cut-off events. For 1161/1445 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4214 event pairs, 0 based on Foata normal form. 45/635 useless extension candidates. Maximal degree in co-relation 1938. Up to 173 conditions per place. [2021-06-13 07:30:38,748 INFO L132 encePairwiseOnDemand]: 74/84 looper letters, 17 selfloop transitions, 17 changer transitions 24/126 dead transitions. [2021-06-13 07:30:38,748 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 126 transitions, 744 flow [2021-06-13 07:30:38,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-13 07:30:38,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-06-13 07:30:38,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 962 transitions. [2021-06-13 07:30:38,751 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8809523809523809 [2021-06-13 07:30:38,751 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 962 transitions. [2021-06-13 07:30:38,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 962 transitions. [2021-06-13 07:30:38,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:30:38,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 962 transitions. [2021-06-13 07:30:38,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 74.0) internal successors, (962), 13 states have internal predecessors, (962), 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 07:30:38,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 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 07:30:38,756 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 84.0) internal successors, (1176), 14 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 07:30:38,756 INFO L185 Difference]: Start difference. First operand has 111 places, 91 transitions, 432 flow. Second operand 13 states and 962 transitions. [2021-06-13 07:30:38,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 126 transitions, 744 flow [2021-06-13 07:30:38,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 126 transitions, 742 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-13 07:30:38,762 INFO L241 Difference]: Finished difference. Result has 129 places, 97 transitions, 556 flow [2021-06-13 07:30:38,762 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=556, PETRI_PLACES=129, PETRI_TRANSITIONS=97} [2021-06-13 07:30:38,762 INFO L335 CegarLoopForPetriNet]: 78 programPoint places, 51 predicate places. [2021-06-13 07:30:38,763 INFO L482 AbstractCegarLoop]: Abstraction has has 129 places, 97 transitions, 556 flow [2021-06-13 07:30:38,763 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 71.14285714285714) internal successors, (498), 7 states have internal predecessors, (498), 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 07:30:38,763 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:30:38,763 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] [2021-06-13 07:30:38,763 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-13 07:30:38,763 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:30:38,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:30:38,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1475728252, now seen corresponding path program 1 times [2021-06-13 07:30:38,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:30:38,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020419112] [2021-06-13 07:30:38,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:30:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:30:38,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:38,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:30:38,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:38,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:30:38,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:38,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:30:38,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:38,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:30:38,807 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-06-13 07:30:38,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-13 07:30:38,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:38,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-13 07:30:38,832 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-06-13 07:30:38,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:30:38,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:38,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:30:38,843 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 07:30:38,843 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:30:38,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020419112] [2021-06-13 07:30:38,843 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020419112] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:30:38,843 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:30:38,843 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-13 07:30:38,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381925310] [2021-06-13 07:30:38,844 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-13 07:30:38,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:30:38,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-13 07:30:38,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-13 07:30:38,845 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 84 [2021-06-13 07:30:38,846 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 97 transitions, 556 flow. Second operand has 8 states, 8 states have (on average 71.125) internal successors, (569), 8 states have internal predecessors, (569), 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 07:30:38,846 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:30:38,846 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 84 [2021-06-13 07:30:38,846 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:30:39,118 INFO L129 PetriNetUnfolder]: 67/382 cut-off events. [2021-06-13 07:30:39,119 INFO L130 PetriNetUnfolder]: For 1529/2054 co-relation queries the response was YES. [2021-06-13 07:30:39,121 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1429 conditions, 382 events. 67/382 cut-off events. For 1529/2054 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2509 event pairs, 0 based on Foata normal form. 58/422 useless extension candidates. Maximal degree in co-relation 1402. Up to 99 conditions per place. [2021-06-13 07:30:39,122 INFO L132 encePairwiseOnDemand]: 75/84 looper letters, 11 selfloop transitions, 20 changer transitions 16/113 dead transitions. [2021-06-13 07:30:39,122 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 113 transitions, 776 flow [2021-06-13 07:30:39,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-13 07:30:39,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-06-13 07:30:39,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1093 transitions. [2021-06-13 07:30:39,125 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8674603174603175 [2021-06-13 07:30:39,126 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1093 transitions. [2021-06-13 07:30:39,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1093 transitions. [2021-06-13 07:30:39,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:30:39,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1093 transitions. [2021-06-13 07:30:39,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 72.86666666666666) internal successors, (1093), 15 states have internal predecessors, (1093), 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 07:30:39,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 84.0) internal successors, (1344), 16 states have internal predecessors, (1344), 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 07:30:39,131 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 84.0) internal successors, (1344), 16 states have internal predecessors, (1344), 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 07:30:39,131 INFO L185 Difference]: Start difference. First operand has 129 places, 97 transitions, 556 flow. Second operand 15 states and 1093 transitions. [2021-06-13 07:30:39,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 113 transitions, 776 flow [2021-06-13 07:30:39,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 113 transitions, 715 flow, removed 14 selfloop flow, removed 11 redundant places. [2021-06-13 07:30:39,139 INFO L241 Difference]: Finished difference. Result has 135 places, 94 transitions, 538 flow [2021-06-13 07:30:39,139 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=538, PETRI_PLACES=135, PETRI_TRANSITIONS=94} [2021-06-13 07:30:39,139 INFO L335 CegarLoopForPetriNet]: 78 programPoint places, 57 predicate places. [2021-06-13 07:30:39,140 INFO L482 AbstractCegarLoop]: Abstraction has has 135 places, 94 transitions, 538 flow [2021-06-13 07:30:39,140 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 71.125) internal successors, (569), 8 states have internal predecessors, (569), 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 07:30:39,140 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 07:30:39,140 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 07:30:39,140 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-13 07:30:39,141 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-13 07:30:39,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 07:30:39,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1866271635, now seen corresponding path program 1 times [2021-06-13 07:30:39,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 07:30:39,141 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784927444] [2021-06-13 07:30:39,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 07:30:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 07:30:39,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:39,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:30:39,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:39,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:30:39,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:39,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-13 07:30:39,188 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-06-13 07:30:39,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-13 07:30:39,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:39,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:30:39,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:39,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-13 07:30:39,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 07:30:39,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-13 07:30:39,232 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 07:30:39,232 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 07:30:39,232 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784927444] [2021-06-13 07:30:39,232 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784927444] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 07:30:39,232 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 07:30:39,232 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-13 07:30:39,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2268177] [2021-06-13 07:30:39,233 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 07:30:39,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 07:30:39,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 07:30:39,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-13 07:30:39,234 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 84 [2021-06-13 07:30:39,234 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 94 transitions, 538 flow. Second operand has 7 states, 7 states have (on average 69.71428571428571) internal successors, (488), 7 states have internal predecessors, (488), 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 07:30:39,235 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-13 07:30:39,235 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 84 [2021-06-13 07:30:39,235 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-13 07:30:39,326 INFO L129 PetriNetUnfolder]: 33/271 cut-off events. [2021-06-13 07:30:39,326 INFO L130 PetriNetUnfolder]: For 777/809 co-relation queries the response was YES. [2021-06-13 07:30:39,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 883 conditions, 271 events. 33/271 cut-off events. For 777/809 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1600 event pairs, 0 based on Foata normal form. 2/262 useless extension candidates. Maximal degree in co-relation 856. Up to 63 conditions per place. [2021-06-13 07:30:39,329 INFO L132 encePairwiseOnDemand]: 77/84 looper letters, 0 selfloop transitions, 0 changer transitions 92/92 dead transitions. [2021-06-13 07:30:39,329 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 92 transitions, 570 flow [2021-06-13 07:30:39,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-13 07:30:39,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-13 07:30:39,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 489 transitions. [2021-06-13 07:30:39,330 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8316326530612245 [2021-06-13 07:30:39,330 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 489 transitions. [2021-06-13 07:30:39,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 489 transitions. [2021-06-13 07:30:39,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-13 07:30:39,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 489 transitions. [2021-06-13 07:30:39,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 69.85714285714286) internal successors, (489), 7 states have internal predecessors, (489), 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 07:30:39,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 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 07:30:39,332 INFO L81 ComplementDD]: Finished complementDD. Result has 8 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 07:30:39,333 INFO L185 Difference]: Start difference. First operand has 135 places, 94 transitions, 538 flow. Second operand 7 states and 489 transitions. [2021-06-13 07:30:39,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 92 transitions, 570 flow [2021-06-13 07:30:39,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 92 transitions, 483 flow, removed 19 selfloop flow, removed 16 redundant places. [2021-06-13 07:30:39,338 INFO L241 Difference]: Finished difference. Result has 119 places, 0 transitions, 0 flow [2021-06-13 07:30:39,338 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=119, PETRI_TRANSITIONS=0} [2021-06-13 07:30:39,338 INFO L335 CegarLoopForPetriNet]: 78 programPoint places, 41 predicate places. [2021-06-13 07:30:39,338 INFO L482 AbstractCegarLoop]: Abstraction has has 119 places, 0 transitions, 0 flow [2021-06-13 07:30:39,339 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 69.71428571428571) internal successors, (488), 7 states have internal predecessors, (488), 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 07:30:39,339 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-13 07:30:39,341 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-13 07:30:39,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.06 07:30:39 BasicIcfg [2021-06-13 07:30:39,344 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-13 07:30:39,344 INFO L168 Benchmark]: Toolchain (without parser) took 5950.84 ms. Allocated memory was 181.4 MB in the beginning and 262.1 MB in the end (delta: 80.7 MB). Free memory was 143.9 MB in the beginning and 166.4 MB in the end (delta: -22.5 MB). Peak memory consumption was 59.7 MB. Max. memory is 8.0 GB. [2021-06-13 07:30:39,345 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 181.4 MB. Free memory is still 162.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 07:30:39,345 INFO L168 Benchmark]: CACSL2BoogieTranslator took 478.27 ms. Allocated memory is still 181.4 MB. Free memory was 143.6 MB in the beginning and 141.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-06-13 07:30:39,345 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.69 ms. Allocated memory is still 181.4 MB. Free memory was 141.9 MB in the beginning and 139.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-13 07:30:39,345 INFO L168 Benchmark]: Boogie Preprocessor took 32.56 ms. Allocated memory is still 181.4 MB. Free memory was 139.8 MB in the beginning and 138.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-13 07:30:39,345 INFO L168 Benchmark]: RCFGBuilder took 540.02 ms. Allocated memory is still 181.4 MB. Free memory was 138.8 MB in the beginning and 114.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-06-13 07:30:39,346 INFO L168 Benchmark]: TraceAbstraction took 4841.23 ms. Allocated memory was 181.4 MB in the beginning and 262.1 MB in the end (delta: 80.7 MB). Free memory was 114.1 MB in the beginning and 166.4 MB in the end (delta: -52.3 MB). Peak memory consumption was 29.5 MB. Max. memory is 8.0 GB. [2021-06-13 07:30:39,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 181.4 MB. Free memory is still 162.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 478.27 ms. Allocated memory is still 181.4 MB. Free memory was 143.6 MB in the beginning and 141.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 53.69 ms. Allocated memory is still 181.4 MB. Free memory was 141.9 MB in the beginning and 139.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.56 ms. Allocated memory is still 181.4 MB. Free memory was 139.8 MB in the beginning and 138.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 540.02 ms. Allocated memory is still 181.4 MB. Free memory was 138.8 MB in the beginning and 114.7 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4841.23 ms. Allocated memory was 181.4 MB in the beginning and 262.1 MB in the end (delta: 80.7 MB). Free memory was 114.1 MB in the beginning and 166.4 MB in the end (delta: -52.3 MB). Peak memory consumption was 29.5 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 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 26.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4712.2ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 3155.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 84.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 141 SDtfs, 401 SDslu, 467 SDs, 0 SdLazy, 545 SolverSat, 100 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 460.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 1673.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=719occurred in iteration=4, InterpolantAutomatonStates: 124, 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: 29.0ms SsaConstructionTime, 168.9ms SatisfiabilityAnalysisTime, 1061.6ms InterpolantComputationTime, 548 NumberOfCodeBlocks, 548 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 538 ConstructedInterpolants, 0 QuantifiedInterpolants, 2280 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...