/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-BasicCegarLoop.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 12:33:06,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 12:33:06,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 12:33:06,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-16 12:33:06,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 12:33:06,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 12:33:06,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 12:33:06,755 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-BasicCegarLoop.epf [2022-02-16 12:33:06,788 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 12:33:06,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 12:33:06,788 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 12:33:06,789 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 12:33:06,789 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 12:33:06,789 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 12:33:06,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 12:33:06,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 12:33:06,790 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 12:33:06,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 12:33:06,791 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 12:33:06,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 12:33:06,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 12:33:06,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 12:33:06,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 12:33:06,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 12:33:06,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 12:33:06,792 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 12:33:06,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 12:33:06,792 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 12:33:06,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 12:33:06,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 12:33:06,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 12:33:06,793 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 12:33:06,793 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 12:33:06,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 12:33:06,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 12:33:06,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 12:33:06,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 12:33:06,793 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 12:33:06,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 12:33:06,794 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 12:33:06,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 12:33:06,794 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-16 12:33:06,794 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 12:33:07,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 12:33:07,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 12:33:07,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 12:33:07,045 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-16 12:33:07,046 INFO L275 PluginConnector]: CDTParser initialized [2022-02-16 12:33:07,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i [2022-02-16 12:33:07,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f801fde7/753c3268b4f74dd68587ee3d65483ed7/FLAG69de84eb6 [2022-02-16 12:33:07,586 INFO L306 CDTParser]: Found 1 translation units. [2022-02-16 12:33:07,587 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i [2022-02-16 12:33:07,619 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f801fde7/753c3268b4f74dd68587ee3d65483ed7/FLAG69de84eb6 [2022-02-16 12:33:07,897 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f801fde7/753c3268b4f74dd68587ee3d65483ed7 [2022-02-16 12:33:07,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 12:33:07,900 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-16 12:33:07,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-16 12:33:07,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-16 12:33:07,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-16 12:33:07,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 12:33:07" (1/1) ... [2022-02-16 12:33:07,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@106d20e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:07, skipping insertion in model container [2022-02-16 12:33:07,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 12:33:07" (1/1) ... [2022-02-16 12:33:07,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-16 12:33:07,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-16 12:33:08,118 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i[1095,1108] [2022-02-16 12:33:08,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 12:33:08,220 INFO L203 MainTranslator]: Completed pre-run [2022-02-16 12:33:08,233 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i[1095,1108] [2022-02-16 12:33:08,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-16 12:33:08,318 INFO L208 MainTranslator]: Completed translation [2022-02-16 12:33:08,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:08 WrapperNode [2022-02-16 12:33:08,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-16 12:33:08,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 12:33:08,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 12:33:08,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 12:33:08,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:08" (1/1) ... [2022-02-16 12:33:08,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:08" (1/1) ... [2022-02-16 12:33:08,372 INFO L137 Inliner]: procedures = 162, calls = 31, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2022-02-16 12:33:08,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 12:33:08,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 12:33:08,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 12:33:08,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 12:33:08,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:08" (1/1) ... [2022-02-16 12:33:08,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:08" (1/1) ... [2022-02-16 12:33:08,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:08" (1/1) ... [2022-02-16 12:33:08,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:08" (1/1) ... [2022-02-16 12:33:08,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:08" (1/1) ... [2022-02-16 12:33:08,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:08" (1/1) ... [2022-02-16 12:33:08,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:08" (1/1) ... [2022-02-16 12:33:08,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 12:33:08,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 12:33:08,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 12:33:08,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 12:33:08,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:08" (1/1) ... [2022-02-16 12:33:08,417 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 12:33:08,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 12:33:08,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-16 12:33:08,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-16 12:33:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-16 12:33:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-16 12:33:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-16 12:33:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-16 12:33:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-16 12:33:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-02-16 12:33:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-02-16 12:33:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-16 12:33:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-16 12:33:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 12:33:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 12:33:08,482 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 12:33:08,603 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 12:33:08,605 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 12:33:08,792 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 12:33:08,798 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 12:33:08,798 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-16 12:33:08,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 12:33:08 BoogieIcfgContainer [2022-02-16 12:33:08,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 12:33:08,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 12:33:08,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 12:33:08,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 12:33:08,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 12:33:07" (1/3) ... [2022-02-16 12:33:08,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dca3bd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 12:33:08, skipping insertion in model container [2022-02-16 12:33:08,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 12:33:08" (2/3) ... [2022-02-16 12:33:08,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dca3bd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 12:33:08, skipping insertion in model container [2022-02-16 12:33:08,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 12:33:08" (3/3) ... [2022-02-16 12:33:08,817 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_20-publish-regression_true.i [2022-02-16 12:33:08,821 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 12:33:08,821 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 12:33:08,821 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-02-16 12:33:08,821 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 12:33:08,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,876 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,876 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,876 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,877 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,880 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,880 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,880 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,881 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,881 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,881 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,881 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,882 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,883 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,884 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,884 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,886 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,886 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,887 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,887 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,895 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,896 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,896 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,896 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,896 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,896 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,896 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,896 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,897 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-16 12:33:08,900 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-16 12:33:08,950 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 12:33:08,960 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=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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 [2022-02-16 12:33:08,961 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-16 12:33:08,978 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 91 transitions, 190 flow [2022-02-16 12:33:09,040 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 385 states, 381 states have (on average 1.8818897637795275) internal successors, (717), 384 states have internal predecessors, (717), 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) [2022-02-16 12:33:09,441 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 8835 transitions and produced 4976 states. [2022-02-16 12:33:09,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 4976 states, 4344 states have (on average 1.151473296500921) internal successors, (5002), 4975 states have internal predecessors, (5002), 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) [2022-02-16 12:33:09,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-02-16 12:33:09,547 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 12:33:09,548 INFO L514 BasicCegarLoop]: 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] [2022-02-16 12:33:09,548 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2022-02-16 12:33:09,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 12:33:09,556 INFO L85 PathProgramCache]: Analyzing trace with hash -547127912, now seen corresponding path program 1 times [2022-02-16 12:33:09,563 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 12:33:09,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784284151] [2022-02-16 12:33:09,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 12:33:09,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 12:33:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 12:33:09,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 12:33:09,959 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 12:33:09,959 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784284151] [2022-02-16 12:33:09,960 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784284151] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 12:33:09,960 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 12:33:09,960 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-16 12:33:09,961 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701935803] [2022-02-16 12:33:09,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 12:33:09,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-16 12:33:09,964 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 12:33:09,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-16 12:33:09,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-16 12:33:10,044 INFO L87 Difference]: Start difference. First operand has 4976 states, 4344 states have (on average 1.151473296500921) internal successors, (5002), 4975 states have internal predecessors, (5002), 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) Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2022-02-16 12:33:10,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 12:33:10,225 INFO L93 Difference]: Finished difference Result 2157 states and 2156 transitions. [2022-02-16 12:33:10,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-16 12:33:10,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) Word has length 34 [2022-02-16 12:33:10,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 12:33:10,253 INFO L225 Difference]: With dead ends: 2157 [2022-02-16 12:33:10,253 INFO L226 Difference]: Without dead ends: 1571 [2022-02-16 12:33:10,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-02-16 12:33:10,258 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 169 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 12:33:10,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 217 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 12:33:10,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2022-02-16 12:33:10,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 320. [2022-02-16 12:33:10,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 304 states have (on average 1.2467105263157894) internal successors, (379), 319 states have internal predecessors, (379), 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) [2022-02-16 12:33:10,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 379 transitions. [2022-02-16 12:33:10,344 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 379 transitions. Word has length 34 [2022-02-16 12:33:10,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 12:33:10,350 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 379 transitions. [2022-02-16 12:33:10,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2022-02-16 12:33:10,351 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 379 transitions. [2022-02-16 12:33:10,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-02-16 12:33:10,353 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 12:33:10,353 INFO L514 BasicCegarLoop]: 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] [2022-02-16 12:33:10,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-16 12:33:10,354 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2022-02-16 12:33:10,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 12:33:10,354 INFO L85 PathProgramCache]: Analyzing trace with hash -875946487, now seen corresponding path program 1 times [2022-02-16 12:33:10,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 12:33:10,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626823312] [2022-02-16 12:33:10,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 12:33:10,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 12:33:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 12:33:10,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 12:33:10,478 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 12:33:10,478 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626823312] [2022-02-16 12:33:10,478 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626823312] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 12:33:10,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 12:33:10,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-16 12:33:10,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375305013] [2022-02-16 12:33:10,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 12:33:10,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-16 12:33:10,481 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 12:33:10,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-16 12:33:10,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-16 12:33:10,482 INFO L87 Difference]: Start difference. First operand 320 states and 379 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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) [2022-02-16 12:33:10,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 12:33:10,533 INFO L93 Difference]: Finished difference Result 290 states and 349 transitions. [2022-02-16 12:33:10,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 12:33:10,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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) Word has length 53 [2022-02-16 12:33:10,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 12:33:10,534 INFO L225 Difference]: With dead ends: 290 [2022-02-16 12:33:10,534 INFO L226 Difference]: Without dead ends: 106 [2022-02-16 12:33:10,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-16 12:33:10,536 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 41 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 12:33:10,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 288 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 12:33:10,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-02-16 12:33:10,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2022-02-16 12:33:10,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.0679611650485437) internal successors, (110), 103 states have internal predecessors, (110), 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) [2022-02-16 12:33:10,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 110 transitions. [2022-02-16 12:33:10,539 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 110 transitions. Word has length 53 [2022-02-16 12:33:10,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 12:33:10,540 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 110 transitions. [2022-02-16 12:33:10,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 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) [2022-02-16 12:33:10,540 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 110 transitions. [2022-02-16 12:33:10,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-02-16 12:33:10,541 INFO L506 BasicCegarLoop]: Found error trace [2022-02-16 12:33:10,541 INFO L514 BasicCegarLoop]: 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] [2022-02-16 12:33:10,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-16 12:33:10,541 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2022-02-16 12:33:10,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 12:33:10,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1489317013, now seen corresponding path program 1 times [2022-02-16 12:33:10,542 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 12:33:10,542 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007684124] [2022-02-16 12:33:10,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 12:33:10,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 12:33:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 12:33:10,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 12:33:10,694 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 12:33:10,694 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007684124] [2022-02-16 12:33:10,695 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007684124] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 12:33:10,695 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 12:33:10,695 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-16 12:33:10,695 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737132761] [2022-02-16 12:33:10,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 12:33:10,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-16 12:33:10,696 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 12:33:10,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-16 12:33:10,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-16 12:33:10,696 INFO L87 Difference]: Start difference. First operand 104 states and 110 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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) [2022-02-16 12:33:10,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-16 12:33:10,753 INFO L93 Difference]: Finished difference Result 53 states and 52 transitions. [2022-02-16 12:33:10,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-16 12:33:10,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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) Word has length 54 [2022-02-16 12:33:10,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-16 12:33:10,754 INFO L225 Difference]: With dead ends: 53 [2022-02-16 12:33:10,754 INFO L226 Difference]: Without dead ends: 0 [2022-02-16 12:33:10,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-02-16 12:33:10,758 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 50 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-16 12:33:10,759 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 84 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-16 12:33:10,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-16 12:33:10,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-16 12:33:10,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-02-16 12:33:10,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-16 12:33:10,761 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2022-02-16 12:33:10,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-16 12:33:10,762 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-16 12:33:10,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 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) [2022-02-16 12:33:10,762 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-16 12:33:10,763 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-16 12:33:10,765 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-02-16 12:33:10,766 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-02-16 12:33:10,769 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 5 remaining) [2022-02-16 12:33:10,769 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-02-16 12:33:10,770 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-02-16 12:33:10,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-16 12:33:10,772 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-16 12:33:10,775 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-16 12:33:10,775 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-16 12:33:10,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 12:33:10 BasicIcfg [2022-02-16 12:33:10,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-16 12:33:10,784 INFO L158 Benchmark]: Toolchain (without parser) took 2883.15ms. Allocated memory was 201.3MB in the beginning and 267.4MB in the end (delta: 66.1MB). Free memory was 148.8MB in the beginning and 189.1MB in the end (delta: -40.2MB). Peak memory consumption was 26.3MB. Max. memory is 8.0GB. [2022-02-16 12:33:10,786 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 167.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 12:33:10,787 INFO L158 Benchmark]: CACSL2BoogieTranslator took 415.56ms. Allocated memory is still 201.3MB. Free memory was 148.7MB in the beginning and 167.9MB in the end (delta: -19.2MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. [2022-02-16 12:33:10,787 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.66ms. Allocated memory is still 201.3MB. Free memory was 167.4MB in the beginning and 165.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-16 12:33:10,787 INFO L158 Benchmark]: Boogie Preprocessor took 26.78ms. Allocated memory is still 201.3MB. Free memory was 165.3MB in the beginning and 164.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-16 12:33:10,787 INFO L158 Benchmark]: RCFGBuilder took 398.96ms. Allocated memory is still 201.3MB. Free memory was 164.3MB in the beginning and 152.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-16 12:33:10,788 INFO L158 Benchmark]: TraceAbstraction took 1971.73ms. Allocated memory was 201.3MB in the beginning and 267.4MB in the end (delta: 66.1MB). Free memory was 151.7MB in the beginning and 189.1MB in the end (delta: -37.4MB). Peak memory consumption was 28.7MB. Max. memory is 8.0GB. [2022-02-16 12:33:10,790 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 167.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 415.56ms. Allocated memory is still 201.3MB. Free memory was 148.7MB in the beginning and 167.9MB in the end (delta: -19.2MB). Peak memory consumption was 11.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.66ms. Allocated memory is still 201.3MB. Free memory was 167.4MB in the beginning and 165.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.78ms. Allocated memory is still 201.3MB. Free memory was 165.3MB in the beginning and 164.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 398.96ms. Allocated memory is still 201.3MB. Free memory was 164.3MB in the beginning and 152.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1971.73ms. Allocated memory was 201.3MB in the beginning and 267.4MB in the end (delta: 66.1MB). Free memory was 151.7MB in the beginning and 189.1MB in the end (delta: -37.4MB). Peak memory consumption was 28.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0 - 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: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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 3 procedures, 114 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, PartialOrderReductionTime: 0.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 260 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 260 mSDsluCounter, 589 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 403 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 188 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4976occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 1253 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 325 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-16 12:33:10,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...