./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe030_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ab3e19-d96a-4db0-9376-228f098f267c/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ab3e19-d96a-4db0-9376-228f098f267c/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ab3e19-d96a-4db0-9376-228f098f267c/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ab3e19-d96a-4db0-9376-228f098f267c/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe030_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ab3e19-d96a-4db0-9376-228f098f267c/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ab3e19-d96a-4db0-9376-228f098f267c/bin/uautomizer-w2VwFs6gM0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1730fa7f98e17ee8b58920ef3daf63ee88225f1b42924032a532b5f5db33fba5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 16:03:36,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 16:03:36,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 16:03:36,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 16:03:36,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 16:03:36,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 16:03:36,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 16:03:36,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 16:03:36,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 16:03:36,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 16:03:36,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 16:03:36,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 16:03:36,436 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 16:03:36,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 16:03:36,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 16:03:36,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 16:03:36,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 16:03:36,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 16:03:36,455 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 16:03:36,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 16:03:36,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 16:03:36,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 16:03:36,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 16:03:36,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 16:03:36,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 16:03:36,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 16:03:36,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 16:03:36,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 16:03:36,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 16:03:36,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 16:03:36,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 16:03:36,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 16:03:36,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 16:03:36,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 16:03:36,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 16:03:36,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 16:03:36,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 16:03:36,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 16:03:36,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 16:03:36,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 16:03:36,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 16:03:36,507 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ab3e19-d96a-4db0-9376-228f098f267c/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 16:03:36,555 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 16:03:36,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 16:03:36,556 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 16:03:36,556 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 16:03:36,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 16:03:36,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 16:03:36,558 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 16:03:36,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 16:03:36,558 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 16:03:36,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 16:03:36,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 16:03:36,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 16:03:36,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 16:03:36,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 16:03:36,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 16:03:36,560 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 16:03:36,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 16:03:36,560 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 16:03:36,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 16:03:36,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 16:03:36,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 16:03:36,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 16:03:36,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:03:36,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 16:03:36,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 16:03:36,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 16:03:36,563 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 16:03:36,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 16:03:36,563 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 16:03:36,563 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 16:03:36,563 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 16:03:36,564 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 16:03:36,564 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ab3e19-d96a-4db0-9376-228f098f267c/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ab3e19-d96a-4db0-9376-228f098f267c/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1730fa7f98e17ee8b58920ef3daf63ee88225f1b42924032a532b5f5db33fba5 [2021-11-22 16:03:36,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 16:03:36,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 16:03:36,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 16:03:36,909 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 16:03:36,910 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 16:03:36,911 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ab3e19-d96a-4db0-9376-228f098f267c/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/pthread-wmm/safe030_tso.i [2021-11-22 16:03:36,998 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ab3e19-d96a-4db0-9376-228f098f267c/bin/uautomizer-w2VwFs6gM0/data/53e6744d8/4c75992c37364cfc8c13fff91058fc42/FLAG3fee88602 [2021-11-22 16:03:37,841 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 16:03:37,842 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ab3e19-d96a-4db0-9376-228f098f267c/sv-benchmarks/c/pthread-wmm/safe030_tso.i [2021-11-22 16:03:37,869 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ab3e19-d96a-4db0-9376-228f098f267c/bin/uautomizer-w2VwFs6gM0/data/53e6744d8/4c75992c37364cfc8c13fff91058fc42/FLAG3fee88602 [2021-11-22 16:03:38,066 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ab3e19-d96a-4db0-9376-228f098f267c/bin/uautomizer-w2VwFs6gM0/data/53e6744d8/4c75992c37364cfc8c13fff91058fc42 [2021-11-22 16:03:38,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 16:03:38,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 16:03:38,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 16:03:38,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 16:03:38,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 16:03:38,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:03:38" (1/1) ... [2021-11-22 16:03:38,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40b0fe45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:38, skipping insertion in model container [2021-11-22 16:03:38,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:03:38" (1/1) ... [2021-11-22 16:03:38,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 16:03:38,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:03:38,398 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ab3e19-d96a-4db0-9376-228f098f267c/sv-benchmarks/c/pthread-wmm/safe030_tso.i[945,958] [2021-11-22 16:03:38,640 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:03:38,651 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 16:03:38,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ab3e19-d96a-4db0-9376-228f098f267c/sv-benchmarks/c/pthread-wmm/safe030_tso.i[945,958] [2021-11-22 16:03:38,743 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:03:38,808 INFO L208 MainTranslator]: Completed translation [2021-11-22 16:03:38,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:38 WrapperNode [2021-11-22 16:03:38,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 16:03:38,811 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 16:03:38,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 16:03:38,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 16:03:38,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:38" (1/1) ... [2021-11-22 16:03:38,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:38" (1/1) ... [2021-11-22 16:03:38,908 INFO L137 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2021-11-22 16:03:38,909 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 16:03:38,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 16:03:38,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 16:03:38,911 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 16:03:38,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:38" (1/1) ... [2021-11-22 16:03:38,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:38" (1/1) ... [2021-11-22 16:03:38,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:38" (1/1) ... [2021-11-22 16:03:38,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:38" (1/1) ... [2021-11-22 16:03:38,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:38" (1/1) ... [2021-11-22 16:03:38,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:38" (1/1) ... [2021-11-22 16:03:38,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:38" (1/1) ... [2021-11-22 16:03:38,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 16:03:38,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 16:03:38,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 16:03:38,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 16:03:38,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:38" (1/1) ... [2021-11-22 16:03:38,997 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:03:39,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ab3e19-d96a-4db0-9376-228f098f267c/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:03:39,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ab3e19-d96a-4db0-9376-228f098f267c/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 16:03:39,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ab3e19-d96a-4db0-9376-228f098f267c/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 16:03:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 16:03:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-22 16:03:39,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 16:03:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 16:03:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 16:03:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-22 16:03:39,074 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-22 16:03:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-22 16:03:39,075 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-22 16:03:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-22 16:03:39,075 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-22 16:03:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 16:03:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-22 16:03:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 16:03:39,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 16:03:39,078 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-22 16:03:39,272 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 16:03:39,274 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 16:03:39,485 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 16:03:39,494 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 16:03:39,495 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 16:03:39,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:03:39 BoogieIcfgContainer [2021-11-22 16:03:39,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 16:03:39,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 16:03:39,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 16:03:39,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 16:03:39,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:03:38" (1/3) ... [2021-11-22 16:03:39,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116d2935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:03:39, skipping insertion in model container [2021-11-22 16:03:39,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:03:38" (2/3) ... [2021-11-22 16:03:39,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116d2935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:03:39, skipping insertion in model container [2021-11-22 16:03:39,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:03:39" (3/3) ... [2021-11-22 16:03:39,508 INFO L111 eAbstractionObserver]: Analyzing ICFG safe030_tso.i [2021-11-22 16:03:39,515 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-22 16:03:39,515 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 16:03:39,516 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 16:03:39,516 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-22 16:03:39,574 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,574 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,575 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,575 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,581 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,581 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,582 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,582 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,583 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,583 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,584 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,584 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,586 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,586 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,586 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,587 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,587 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,587 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,587 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,588 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,589 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,589 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,590 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,590 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,590 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,591 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,591 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,592 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,592 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,592 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,593 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,593 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,594 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,594 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,597 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,597 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,609 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,610 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,610 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,610 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,616 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,616 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,617 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,617 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,618 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,619 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,624 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,625 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-22 16:03:39,627 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-22 16:03:39,702 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 16:03:39,723 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 16:03:39,725 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-22 16:03:39,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 90 transitions, 195 flow [2021-11-22 16:03:39,852 INFO L129 PetriNetUnfolder]: 2/87 cut-off events. [2021-11-22 16:03:39,852 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-22 16:03:39,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 87 events. 2/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-11-22 16:03:39,857 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 90 transitions, 195 flow [2021-11-22 16:03:39,869 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 73 transitions, 155 flow [2021-11-22 16:03:39,913 INFO L129 PetriNetUnfolder]: 1/72 cut-off events. [2021-11-22 16:03:39,915 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-22 16:03:39,916 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 16:03:39,917 INFO L254 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] [2021-11-22 16:03:39,918 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 16:03:39,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:03:39,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1792320384, now seen corresponding path program 1 times [2021-11-22 16:03:39,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:03:39,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831738583] [2021-11-22 16:03:39,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:03:39,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:03:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:03:40,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:03:40,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:03:40,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831738583] [2021-11-22 16:03:40,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831738583] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:03:40,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:03:40,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 16:03:40,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750019483] [2021-11-22 16:03:40,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:03:40,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 16:03:40,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:03:40,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 16:03:40,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-22 16:03:40,647 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 90 [2021-11-22 16:03:40,658 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 73 transitions, 155 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) [2021-11-22 16:03:40,660 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 16:03:40,660 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 90 [2021-11-22 16:03:40,662 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 16:03:41,371 INFO L129 PetriNetUnfolder]: 578/1358 cut-off events. [2021-11-22 16:03:41,372 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2021-11-22 16:03:41,382 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2326 conditions, 1358 events. 578/1358 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 8589 event pairs, 36 based on Foata normal form. 48/1359 useless extension candidates. Maximal degree in co-relation 2291. Up to 283 conditions per place. [2021-11-22 16:03:41,394 INFO L132 encePairwiseOnDemand]: 77/90 looper letters, 25 selfloop transitions, 10 changer transitions 62/151 dead transitions. [2021-11-22 16:03:41,398 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 151 transitions, 511 flow [2021-11-22 16:03:41,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 16:03:41,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-22 16:03:41,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 987 transitions. [2021-11-22 16:03:41,437 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8435897435897436 [2021-11-22 16:03:41,438 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 987 transitions. [2021-11-22 16:03:41,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 987 transitions. [2021-11-22 16:03:41,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 16:03:41,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 987 transitions. [2021-11-22 16:03:41,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 75.92307692307692) internal successors, (987), 13 states have internal predecessors, (987), 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) [2021-11-22 16:03:41,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 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) [2021-11-22 16:03:41,475 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 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) [2021-11-22 16:03:41,477 INFO L186 Difference]: Start difference. First operand has 82 places, 73 transitions, 155 flow. Second operand 13 states and 987 transitions. [2021-11-22 16:03:41,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 151 transitions, 511 flow [2021-11-22 16:03:41,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 151 transitions, 506 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-11-22 16:03:41,493 INFO L242 Difference]: Finished difference. Result has 103 places, 80 transitions, 264 flow [2021-11-22 16:03:41,495 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=264, PETRI_PLACES=103, PETRI_TRANSITIONS=80} [2021-11-22 16:03:41,499 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 21 predicate places. [2021-11-22 16:03:41,500 INFO L470 AbstractCegarLoop]: Abstraction has has 103 places, 80 transitions, 264 flow [2021-11-22 16:03:41,501 INFO L471 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) [2021-11-22 16:03:41,508 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 16:03:41,508 INFO L254 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] [2021-11-22 16:03:41,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 16:03:41,509 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 16:03:41,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:03:41,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1336318753, now seen corresponding path program 1 times [2021-11-22 16:03:41,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:03:41,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503290412] [2021-11-22 16:03:41,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:03:41,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:03:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:03:41,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:03:41,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:03:41,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503290412] [2021-11-22 16:03:41,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503290412] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:03:41,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:03:41,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 16:03:41,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057349562] [2021-11-22 16:03:41,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:03:41,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 16:03:41,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:03:41,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 16:03:41,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-22 16:03:41,744 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 90 [2021-11-22 16:03:41,746 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 80 transitions, 264 flow. Second operand has 7 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) [2021-11-22 16:03:41,746 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 16:03:41,746 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 90 [2021-11-22 16:03:41,746 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 16:03:42,242 INFO L129 PetriNetUnfolder]: 394/986 cut-off events. [2021-11-22 16:03:42,242 INFO L130 PetriNetUnfolder]: For 2175/2906 co-relation queries the response was YES. [2021-11-22 16:03:42,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3287 conditions, 986 events. 394/986 cut-off events. For 2175/2906 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5938 event pairs, 7 based on Foata normal form. 26/985 useless extension candidates. Maximal degree in co-relation 3239. Up to 273 conditions per place. [2021-11-22 16:03:42,265 INFO L132 encePairwiseOnDemand]: 79/90 looper letters, 30 selfloop transitions, 15 changer transitions 58/157 dead transitions. [2021-11-22 16:03:42,266 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 157 transitions, 1014 flow [2021-11-22 16:03:42,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 16:03:42,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-22 16:03:42,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 972 transitions. [2021-11-22 16:03:42,272 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8307692307692308 [2021-11-22 16:03:42,272 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 972 transitions. [2021-11-22 16:03:42,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 972 transitions. [2021-11-22 16:03:42,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 16:03:42,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 972 transitions. [2021-11-22 16:03:42,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 74.76923076923077) internal successors, (972), 13 states have internal predecessors, (972), 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) [2021-11-22 16:03:42,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 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) [2021-11-22 16:03:42,288 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 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) [2021-11-22 16:03:42,290 INFO L186 Difference]: Start difference. First operand has 103 places, 80 transitions, 264 flow. Second operand 13 states and 972 transitions. [2021-11-22 16:03:42,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 157 transitions, 1014 flow [2021-11-22 16:03:42,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 157 transitions, 990 flow, removed 12 selfloop flow, removed 3 redundant places. [2021-11-22 16:03:42,318 INFO L242 Difference]: Finished difference. Result has 115 places, 90 transitions, 438 flow [2021-11-22 16:03:42,318 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=438, PETRI_PLACES=115, PETRI_TRANSITIONS=90} [2021-11-22 16:03:42,319 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 33 predicate places. [2021-11-22 16:03:42,320 INFO L470 AbstractCegarLoop]: Abstraction has has 115 places, 90 transitions, 438 flow [2021-11-22 16:03:42,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 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) [2021-11-22 16:03:42,321 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 16:03:42,321 INFO L254 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] [2021-11-22 16:03:42,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 16:03:42,322 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 16:03:42,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:03:42,323 INFO L85 PathProgramCache]: Analyzing trace with hash 337132278, now seen corresponding path program 1 times [2021-11-22 16:03:42,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:03:42,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65503907] [2021-11-22 16:03:42,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:03:42,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:03:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:03:42,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:03:42,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:03:42,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65503907] [2021-11-22 16:03:42,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65503907] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:03:42,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:03:42,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 16:03:42,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147864063] [2021-11-22 16:03:42,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:03:42,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 16:03:42,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:03:42,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 16:03:42,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:03:42,558 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 90 [2021-11-22 16:03:42,559 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 90 transitions, 438 flow. Second operand has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 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) [2021-11-22 16:03:42,560 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 16:03:42,560 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 90 [2021-11-22 16:03:42,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 16:03:42,882 INFO L129 PetriNetUnfolder]: 177/596 cut-off events. [2021-11-22 16:03:42,882 INFO L130 PetriNetUnfolder]: For 3157/3669 co-relation queries the response was YES. [2021-11-22 16:03:42,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2285 conditions, 596 events. 177/596 cut-off events. For 3157/3669 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3502 event pairs, 30 based on Foata normal form. 56/624 useless extension candidates. Maximal degree in co-relation 2228. Up to 159 conditions per place. [2021-11-22 16:03:42,894 INFO L132 encePairwiseOnDemand]: 83/90 looper letters, 17 selfloop transitions, 6 changer transitions 28/125 dead transitions. [2021-11-22 16:03:42,894 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 125 transitions, 872 flow [2021-11-22 16:03:42,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 16:03:42,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-22 16:03:42,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 703 transitions. [2021-11-22 16:03:42,899 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8679012345679012 [2021-11-22 16:03:42,899 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 703 transitions. [2021-11-22 16:03:42,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 703 transitions. [2021-11-22 16:03:42,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 16:03:42,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 703 transitions. [2021-11-22 16:03:42,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 78.11111111111111) internal successors, (703), 9 states have internal predecessors, (703), 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) [2021-11-22 16:03:42,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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) [2021-11-22 16:03:42,907 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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) [2021-11-22 16:03:42,907 INFO L186 Difference]: Start difference. First operand has 115 places, 90 transitions, 438 flow. Second operand 9 states and 703 transitions. [2021-11-22 16:03:42,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 125 transitions, 872 flow [2021-11-22 16:03:42,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 125 transitions, 824 flow, removed 24 selfloop flow, removed 3 redundant places. [2021-11-22 16:03:42,939 INFO L242 Difference]: Finished difference. Result has 118 places, 95 transitions, 534 flow [2021-11-22 16:03:42,940 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=534, PETRI_PLACES=118, PETRI_TRANSITIONS=95} [2021-11-22 16:03:42,943 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 36 predicate places. [2021-11-22 16:03:42,943 INFO L470 AbstractCegarLoop]: Abstraction has has 118 places, 95 transitions, 534 flow [2021-11-22 16:03:42,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.66666666666667) internal successors, (454), 6 states have internal predecessors, (454), 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) [2021-11-22 16:03:42,944 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 16:03:42,944 INFO L254 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] [2021-11-22 16:03:42,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 16:03:42,946 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 16:03:42,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:03:42,955 INFO L85 PathProgramCache]: Analyzing trace with hash -79393714, now seen corresponding path program 1 times [2021-11-22 16:03:42,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:03:42,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534294747] [2021-11-22 16:03:42,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:03:42,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:03:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:03:43,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:03:43,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:03:43,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534294747] [2021-11-22 16:03:43,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534294747] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:03:43,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:03:43,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 16:03:43,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403016817] [2021-11-22 16:03:43,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:03:43,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 16:03:43,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:03:43,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 16:03:43,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-22 16:03:43,228 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 90 [2021-11-22 16:03:43,229 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 95 transitions, 534 flow. Second operand has 7 states, 7 states have (on average 70.14285714285714) internal successors, (491), 7 states have internal predecessors, (491), 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) [2021-11-22 16:03:43,230 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 16:03:43,230 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 90 [2021-11-22 16:03:43,230 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 16:03:43,693 INFO L129 PetriNetUnfolder]: 233/768 cut-off events. [2021-11-22 16:03:43,694 INFO L130 PetriNetUnfolder]: For 4503/6001 co-relation queries the response was YES. [2021-11-22 16:03:43,701 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3226 conditions, 768 events. 233/768 cut-off events. For 4503/6001 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 4836 event pairs, 8 based on Foata normal form. 13/759 useless extension candidates. Maximal degree in co-relation 3176. Up to 190 conditions per place. [2021-11-22 16:03:43,710 INFO L132 encePairwiseOnDemand]: 79/90 looper letters, 36 selfloop transitions, 23 changer transitions 43/156 dead transitions. [2021-11-22 16:03:43,710 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 156 transitions, 1363 flow [2021-11-22 16:03:43,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 16:03:43,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-22 16:03:43,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 958 transitions. [2021-11-22 16:03:43,716 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8188034188034188 [2021-11-22 16:03:43,716 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 958 transitions. [2021-11-22 16:03:43,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 958 transitions. [2021-11-22 16:03:43,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 16:03:43,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 958 transitions. [2021-11-22 16:03:43,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 73.6923076923077) internal successors, (958), 13 states have internal predecessors, (958), 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) [2021-11-22 16:03:43,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 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) [2021-11-22 16:03:43,727 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 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) [2021-11-22 16:03:43,728 INFO L186 Difference]: Start difference. First operand has 118 places, 95 transitions, 534 flow. Second operand 13 states and 958 transitions. [2021-11-22 16:03:43,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 156 transitions, 1363 flow [2021-11-22 16:03:43,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 156 transitions, 1302 flow, removed 27 selfloop flow, removed 10 redundant places. [2021-11-22 16:03:43,751 INFO L242 Difference]: Finished difference. Result has 126 places, 99 transitions, 674 flow [2021-11-22 16:03:43,751 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=674, PETRI_PLACES=126, PETRI_TRANSITIONS=99} [2021-11-22 16:03:43,753 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 44 predicate places. [2021-11-22 16:03:43,754 INFO L470 AbstractCegarLoop]: Abstraction has has 126 places, 99 transitions, 674 flow [2021-11-22 16:03:43,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 70.14285714285714) internal successors, (491), 7 states have internal predecessors, (491), 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) [2021-11-22 16:03:43,757 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 16:03:43,757 INFO L254 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] [2021-11-22 16:03:43,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 16:03:43,758 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 16:03:43,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:03:43,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1158853112, now seen corresponding path program 1 times [2021-11-22 16:03:43,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:03:43,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169791914] [2021-11-22 16:03:43,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:03:43,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:03:43,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:03:43,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:03:43,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:03:43,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169791914] [2021-11-22 16:03:43,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169791914] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:03:43,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:03:43,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 16:03:43,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50793403] [2021-11-22 16:03:43,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:03:43,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 16:03:43,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:03:43,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 16:03:43,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:03:43,921 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 90 [2021-11-22 16:03:43,922 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 99 transitions, 674 flow. Second operand has 6 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 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) [2021-11-22 16:03:43,922 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 16:03:43,923 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 90 [2021-11-22 16:03:43,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 16:03:44,214 INFO L129 PetriNetUnfolder]: 149/655 cut-off events. [2021-11-22 16:03:44,215 INFO L130 PetriNetUnfolder]: For 5938/6512 co-relation queries the response was YES. [2021-11-22 16:03:44,221 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2938 conditions, 655 events. 149/655 cut-off events. For 5938/6512 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4326 event pairs, 47 based on Foata normal form. 22/650 useless extension candidates. Maximal degree in co-relation 2871. Up to 148 conditions per place. [2021-11-22 16:03:44,228 INFO L132 encePairwiseOnDemand]: 84/90 looper letters, 18 selfloop transitions, 5 changer transitions 15/117 dead transitions. [2021-11-22 16:03:44,228 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 117 transitions, 916 flow [2021-11-22 16:03:44,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 16:03:44,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-22 16:03:44,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 696 transitions. [2021-11-22 16:03:44,233 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8592592592592593 [2021-11-22 16:03:44,233 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 696 transitions. [2021-11-22 16:03:44,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 696 transitions. [2021-11-22 16:03:44,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 16:03:44,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 696 transitions. [2021-11-22 16:03:44,237 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 77.33333333333333) internal successors, (696), 9 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:03:44,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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) [2021-11-22 16:03:44,241 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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) [2021-11-22 16:03:44,242 INFO L186 Difference]: Start difference. First operand has 126 places, 99 transitions, 674 flow. Second operand 9 states and 696 transitions. [2021-11-22 16:03:44,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 117 transitions, 916 flow [2021-11-22 16:03:44,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 117 transitions, 850 flow, removed 33 selfloop flow, removed 9 redundant places. [2021-11-22 16:03:44,264 INFO L242 Difference]: Finished difference. Result has 123 places, 97 transitions, 661 flow [2021-11-22 16:03:44,265 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=661, PETRI_PLACES=123, PETRI_TRANSITIONS=97} [2021-11-22 16:03:44,266 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 41 predicate places. [2021-11-22 16:03:44,266 INFO L470 AbstractCegarLoop]: Abstraction has has 123 places, 97 transitions, 661 flow [2021-11-22 16:03:44,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 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) [2021-11-22 16:03:44,267 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 16:03:44,268 INFO L254 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] [2021-11-22 16:03:44,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 16:03:44,268 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 16:03:44,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:03:44,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1189494470, now seen corresponding path program 1 times [2021-11-22 16:03:44,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:03:44,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002813303] [2021-11-22 16:03:44,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:03:44,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:03:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:03:44,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:03:44,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:03:44,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002813303] [2021-11-22 16:03:44,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002813303] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:03:44,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:03:44,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 16:03:44,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670399498] [2021-11-22 16:03:44,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:03:44,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 16:03:44,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:03:44,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 16:03:44,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:03:44,373 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 90 [2021-11-22 16:03:44,374 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 97 transitions, 661 flow. Second operand has 6 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 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) [2021-11-22 16:03:44,374 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 16:03:44,374 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 90 [2021-11-22 16:03:44,375 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 16:03:44,671 INFO L129 PetriNetUnfolder]: 113/683 cut-off events. [2021-11-22 16:03:44,672 INFO L130 PetriNetUnfolder]: For 4947/6002 co-relation queries the response was YES. [2021-11-22 16:03:44,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2760 conditions, 683 events. 113/683 cut-off events. For 4947/6002 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 4986 event pairs, 20 based on Foata normal form. 36/703 useless extension candidates. Maximal degree in co-relation 2694. Up to 136 conditions per place. [2021-11-22 16:03:44,685 INFO L132 encePairwiseOnDemand]: 84/90 looper letters, 17 selfloop transitions, 7 changer transitions 16/114 dead transitions. [2021-11-22 16:03:44,686 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 114 transitions, 963 flow [2021-11-22 16:03:44,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 16:03:44,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-22 16:03:44,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 695 transitions. [2021-11-22 16:03:44,690 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8580246913580247 [2021-11-22 16:03:44,691 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 695 transitions. [2021-11-22 16:03:44,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 695 transitions. [2021-11-22 16:03:44,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 16:03:44,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 695 transitions. [2021-11-22 16:03:44,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 77.22222222222223) internal successors, (695), 9 states have internal predecessors, (695), 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) [2021-11-22 16:03:44,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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) [2021-11-22 16:03:44,700 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 90.0) internal successors, (900), 10 states have internal predecessors, (900), 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) [2021-11-22 16:03:44,700 INFO L186 Difference]: Start difference. First operand has 123 places, 97 transitions, 661 flow. Second operand 9 states and 695 transitions. [2021-11-22 16:03:44,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 114 transitions, 963 flow [2021-11-22 16:03:44,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 114 transitions, 902 flow, removed 28 selfloop flow, removed 7 redundant places. [2021-11-22 16:03:44,721 INFO L242 Difference]: Finished difference. Result has 125 places, 94 transitions, 629 flow [2021-11-22 16:03:44,722 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=640, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=629, PETRI_PLACES=125, PETRI_TRANSITIONS=94} [2021-11-22 16:03:44,725 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 43 predicate places. [2021-11-22 16:03:44,726 INFO L470 AbstractCegarLoop]: Abstraction has has 125 places, 94 transitions, 629 flow [2021-11-22 16:03:44,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 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) [2021-11-22 16:03:44,726 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 16:03:44,727 INFO L254 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] [2021-11-22 16:03:44,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 16:03:44,727 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 16:03:44,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:03:44,731 INFO L85 PathProgramCache]: Analyzing trace with hash -897585939, now seen corresponding path program 1 times [2021-11-22 16:03:44,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:03:44,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727358686] [2021-11-22 16:03:44,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:03:44,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:03:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:03:44,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:03:44,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:03:44,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727358686] [2021-11-22 16:03:44,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727358686] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:03:44,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:03:44,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 16:03:44,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817592927] [2021-11-22 16:03:44,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:03:44,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 16:03:44,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:03:44,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 16:03:44,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:03:44,933 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 90 [2021-11-22 16:03:44,934 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 94 transitions, 629 flow. Second operand has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 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) [2021-11-22 16:03:44,935 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 16:03:44,935 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 90 [2021-11-22 16:03:44,935 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 16:03:45,615 INFO L129 PetriNetUnfolder]: 1085/2676 cut-off events. [2021-11-22 16:03:45,615 INFO L130 PetriNetUnfolder]: For 3656/3812 co-relation queries the response was YES. [2021-11-22 16:03:45,650 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5970 conditions, 2676 events. 1085/2676 cut-off events. For 3656/3812 co-relation queries the response was YES. Maximal size of possible extension queue 361. Compared 24343 event pairs, 45 based on Foata normal form. 1/2388 useless extension candidates. Maximal degree in co-relation 5903. Up to 786 conditions per place. [2021-11-22 16:03:45,660 INFO L132 encePairwiseOnDemand]: 80/90 looper letters, 26 selfloop transitions, 17 changer transitions 3/126 dead transitions. [2021-11-22 16:03:45,660 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 126 transitions, 789 flow [2021-11-22 16:03:45,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 16:03:45,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-22 16:03:45,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 778 transitions. [2021-11-22 16:03:45,665 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8644444444444445 [2021-11-22 16:03:45,665 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 778 transitions. [2021-11-22 16:03:45,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 778 transitions. [2021-11-22 16:03:45,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 16:03:45,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 778 transitions. [2021-11-22 16:03:45,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 77.8) internal successors, (778), 10 states have internal predecessors, (778), 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) [2021-11-22 16:03:45,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 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) [2021-11-22 16:03:45,674 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 90.0) internal successors, (990), 11 states have internal predecessors, (990), 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) [2021-11-22 16:03:45,674 INFO L186 Difference]: Start difference. First operand has 125 places, 94 transitions, 629 flow. Second operand 10 states and 778 transitions. [2021-11-22 16:03:45,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 126 transitions, 789 flow [2021-11-22 16:03:45,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 126 transitions, 732 flow, removed 15 selfloop flow, removed 8 redundant places. [2021-11-22 16:03:45,694 INFO L242 Difference]: Finished difference. Result has 126 places, 110 transitions, 692 flow [2021-11-22 16:03:45,695 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=692, PETRI_PLACES=126, PETRI_TRANSITIONS=110} [2021-11-22 16:03:45,697 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 44 predicate places. [2021-11-22 16:03:45,697 INFO L470 AbstractCegarLoop]: Abstraction has has 126 places, 110 transitions, 692 flow [2021-11-22 16:03:45,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 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) [2021-11-22 16:03:45,698 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 16:03:45,698 INFO L254 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] [2021-11-22 16:03:45,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-22 16:03:45,698 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 16:03:45,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:03:45,699 INFO L85 PathProgramCache]: Analyzing trace with hash -144768340, now seen corresponding path program 1 times [2021-11-22 16:03:45,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:03:45,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981514562] [2021-11-22 16:03:45,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:03:45,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:03:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:03:45,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:03:45,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:03:45,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981514562] [2021-11-22 16:03:45,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981514562] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:03:45,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:03:45,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 16:03:45,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138428180] [2021-11-22 16:03:45,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:03:45,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 16:03:45,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:03:45,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 16:03:45,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-22 16:03:45,878 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 90 [2021-11-22 16:03:45,879 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 110 transitions, 692 flow. Second operand has 7 states, 7 states have (on average 74.57142857142857) internal successors, (522), 7 states have internal predecessors, (522), 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) [2021-11-22 16:03:45,879 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 16:03:45,879 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 90 [2021-11-22 16:03:45,880 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 16:03:46,680 INFO L129 PetriNetUnfolder]: 925/2535 cut-off events. [2021-11-22 16:03:46,681 INFO L130 PetriNetUnfolder]: For 6201/7135 co-relation queries the response was YES. [2021-11-22 16:03:46,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8758 conditions, 2535 events. 925/2535 cut-off events. For 6201/7135 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 24851 event pairs, 5 based on Foata normal form. 302/2642 useless extension candidates. Maximal degree in co-relation 8690. Up to 785 conditions per place. [2021-11-22 16:03:46,717 INFO L132 encePairwiseOnDemand]: 80/90 looper letters, 23 selfloop transitions, 28 changer transitions 21/148 dead transitions. [2021-11-22 16:03:46,717 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 148 transitions, 1036 flow [2021-11-22 16:03:46,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 16:03:46,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-22 16:03:46,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1011 transitions. [2021-11-22 16:03:46,722 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8641025641025641 [2021-11-22 16:03:46,722 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1011 transitions. [2021-11-22 16:03:46,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1011 transitions. [2021-11-22 16:03:46,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 16:03:46,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1011 transitions. [2021-11-22 16:03:46,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 77.76923076923077) internal successors, (1011), 13 states have internal predecessors, (1011), 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) [2021-11-22 16:03:46,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 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) [2021-11-22 16:03:46,734 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 90.0) internal successors, (1260), 14 states have internal predecessors, (1260), 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) [2021-11-22 16:03:46,735 INFO L186 Difference]: Start difference. First operand has 126 places, 110 transitions, 692 flow. Second operand 13 states and 1011 transitions. [2021-11-22 16:03:46,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 148 transitions, 1036 flow [2021-11-22 16:03:46,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 148 transitions, 971 flow, removed 26 selfloop flow, removed 6 redundant places. [2021-11-22 16:03:46,782 INFO L242 Difference]: Finished difference. Result has 138 places, 118 transitions, 771 flow [2021-11-22 16:03:46,782 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=627, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=771, PETRI_PLACES=138, PETRI_TRANSITIONS=118} [2021-11-22 16:03:46,786 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 56 predicate places. [2021-11-22 16:03:46,786 INFO L470 AbstractCegarLoop]: Abstraction has has 138 places, 118 transitions, 771 flow [2021-11-22 16:03:46,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.57142857142857) internal successors, (522), 7 states have internal predecessors, (522), 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) [2021-11-22 16:03:46,787 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-22 16:03:46,787 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:03:46,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-22 16:03:46,788 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-22 16:03:46,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:03:46,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1059478875, now seen corresponding path program 1 times [2021-11-22 16:03:46,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:03:46,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536942774] [2021-11-22 16:03:46,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:03:46,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:03:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:03:46,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:03:46,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:03:46,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536942774] [2021-11-22 16:03:46,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536942774] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:03:46,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:03:46,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-22 16:03:46,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961881561] [2021-11-22 16:03:46,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:03:47,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 16:03:47,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:03:47,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 16:03:47,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-22 16:03:47,003 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 90 [2021-11-22 16:03:47,004 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 118 transitions, 771 flow. Second operand has 8 states, 8 states have (on average 74.5) internal successors, (596), 8 states have internal predecessors, (596), 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) [2021-11-22 16:03:47,004 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-22 16:03:47,004 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 90 [2021-11-22 16:03:47,005 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-22 16:03:47,749 INFO L129 PetriNetUnfolder]: 578/1997 cut-off events. [2021-11-22 16:03:47,749 INFO L130 PetriNetUnfolder]: For 9024/9984 co-relation queries the response was YES. [2021-11-22 16:03:47,772 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8610 conditions, 1997 events. 578/1997 cut-off events. For 9024/9984 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 20849 event pairs, 4 based on Foata normal form. 268/2113 useless extension candidates. Maximal degree in co-relation 8539. Up to 546 conditions per place. [2021-11-22 16:03:47,777 INFO L132 encePairwiseOnDemand]: 82/90 looper letters, 0 selfloop transitions, 0 changer transitions 130/130 dead transitions. [2021-11-22 16:03:47,778 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 130 transitions, 987 flow [2021-11-22 16:03:47,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 16:03:47,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-22 16:03:47,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1147 transitions. [2021-11-22 16:03:47,785 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8496296296296296 [2021-11-22 16:03:47,786 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1147 transitions. [2021-11-22 16:03:47,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1147 transitions. [2021-11-22 16:03:47,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 16:03:47,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1147 transitions. [2021-11-22 16:03:47,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 76.46666666666667) internal successors, (1147), 15 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:03:47,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 90.0) internal successors, (1440), 16 states have internal predecessors, (1440), 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) [2021-11-22 16:03:47,802 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 90.0) internal successors, (1440), 16 states have internal predecessors, (1440), 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) [2021-11-22 16:03:47,802 INFO L186 Difference]: Start difference. First operand has 138 places, 118 transitions, 771 flow. Second operand 15 states and 1147 transitions. [2021-11-22 16:03:47,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 130 transitions, 987 flow [2021-11-22 16:03:47,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 130 transitions, 845 flow, removed 45 selfloop flow, removed 18 redundant places. [2021-11-22 16:03:47,935 INFO L242 Difference]: Finished difference. Result has 125 places, 0 transitions, 0 flow [2021-11-22 16:03:47,935 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=612, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=0, PETRI_PLACES=125, PETRI_TRANSITIONS=0} [2021-11-22 16:03:47,937 INFO L334 CegarLoopForPetriNet]: 82 programPoint places, 43 predicate places. [2021-11-22 16:03:47,937 INFO L470 AbstractCegarLoop]: Abstraction has has 125 places, 0 transitions, 0 flow [2021-11-22 16:03:47,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 74.5) internal successors, (596), 8 states have internal predecessors, (596), 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) [2021-11-22 16:03:47,941 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-11-22 16:03:47,941 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2021-11-22 16:03:47,942 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2021-11-22 16:03:47,942 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2021-11-22 16:03:47,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-22 16:03:47,947 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:03:47,950 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-22 16:03:47,950 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 16:03:47,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 04:03:47 BasicIcfg [2021-11-22 16:03:47,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 16:03:47,966 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 16:03:47,966 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 16:03:47,967 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 16:03:47,967 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:03:39" (3/4) ... [2021-11-22 16:03:47,971 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-22 16:03:47,982 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-11-22 16:03:47,983 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-11-22 16:03:47,983 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-11-22 16:03:47,991 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-11-22 16:03:47,992 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-22 16:03:47,992 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-22 16:03:47,992 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-22 16:03:48,044 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ab3e19-d96a-4db0-9376-228f098f267c/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 16:03:48,044 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 16:03:48,046 INFO L158 Benchmark]: Toolchain (without parser) took 9972.43ms. Allocated memory was 83.9MB in the beginning and 249.6MB in the end (delta: 165.7MB). Free memory was 46.8MB in the beginning and 126.9MB in the end (delta: -80.1MB). Peak memory consumption was 84.6MB. Max. memory is 16.1GB. [2021-11-22 16:03:48,046 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 83.9MB. Free memory was 64.4MB in the beginning and 64.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:03:48,047 INFO L158 Benchmark]: CACSL2BoogieTranslator took 731.54ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 46.7MB in the beginning and 67.3MB in the end (delta: -20.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-22 16:03:48,047 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.16ms. Allocated memory is still 100.7MB. Free memory was 67.3MB in the beginning and 65.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 16:03:48,048 INFO L158 Benchmark]: Boogie Preprocessor took 66.08ms. Allocated memory is still 100.7MB. Free memory was 65.2MB in the beginning and 64.3MB in the end (delta: 925.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:03:48,048 INFO L158 Benchmark]: RCFGBuilder took 520.54ms. Allocated memory is still 100.7MB. Free memory was 63.8MB in the beginning and 51.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-22 16:03:48,048 INFO L158 Benchmark]: TraceAbstraction took 8466.12ms. Allocated memory was 100.7MB in the beginning and 249.6MB in the end (delta: 148.9MB). Free memory was 51.2MB in the beginning and 130.1MB in the end (delta: -78.8MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. [2021-11-22 16:03:48,049 INFO L158 Benchmark]: Witness Printer took 77.97ms. Allocated memory is still 249.6MB. Free memory was 130.1MB in the beginning and 126.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-22 16:03:48,053 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 83.9MB. Free memory was 64.4MB in the beginning and 64.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 731.54ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 46.7MB in the beginning and 67.3MB in the end (delta: -20.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.16ms. Allocated memory is still 100.7MB. Free memory was 67.3MB in the beginning and 65.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.08ms. Allocated memory is still 100.7MB. Free memory was 65.2MB in the beginning and 64.3MB in the end (delta: 925.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 520.54ms. Allocated memory is still 100.7MB. Free memory was 63.8MB in the beginning and 51.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8466.12ms. Allocated memory was 100.7MB in the beginning and 249.6MB in the end (delta: 148.9MB). Free memory was 51.2MB in the beginning and 130.1MB in the end (delta: -78.8MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. * Witness Printer took 77.97ms. Allocated memory is still 249.6MB. Free memory was 130.1MB in the beginning and 126.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 113 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 372 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 372 mSDsluCounter, 578 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 552 mSDsCounter, 89 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 525 IncrementalHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 89 mSolverCounterUnsat, 144 mSDtfsCounter, 525 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=771occurred in iteration=8, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 522 NumberOfCodeBlocks, 522 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 513 ConstructedInterpolants, 0 QuantifiedInterpolants, 1793 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-22 16:03:48,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ab3e19-d96a-4db0-9376-228f098f267c/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE