./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 64bit --witnessprinter.graph.data.programhash 36ffbabf76f0a0e87302d8b80308134217d4fdef380ae154dfcdec710817c6e2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 00:12:50,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 00:12:50,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 00:12:50,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 00:12:50,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 00:12:50,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 00:12:50,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 00:12:50,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 00:12:50,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 00:12:50,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 00:12:50,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 00:12:50,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 00:12:50,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 00:12:50,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 00:12:50,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 00:12:50,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 00:12:50,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 00:12:50,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 00:12:50,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 00:12:50,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 00:12:50,473 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 00:12:50,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 00:12:50,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 00:12:50,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 00:12:50,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 00:12:50,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 00:12:50,479 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 00:12:50,479 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 00:12:50,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 00:12:50,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 00:12:50,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 00:12:50,481 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 00:12:50,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 00:12:50,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 00:12:50,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 00:12:50,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 00:12:50,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 00:12:50,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 00:12:50,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 00:12:50,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 00:12:50,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 00:12:50,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 00:12:50,486 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 00:12:50,506 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 00:12:50,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 00:12:50,508 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 00:12:50,508 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 00:12:50,508 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 00:12:50,509 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 00:12:50,509 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 00:12:50,509 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 00:12:50,509 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 00:12:50,510 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 00:12:50,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 00:12:50,510 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 00:12:50,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 00:12:50,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 00:12:50,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 00:12:50,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 00:12:50,511 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 00:12:50,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 00:12:50,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 00:12:50,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 00:12:50,512 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 00:12:50,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:12:50,512 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 00:12:50,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 00:12:50,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 00:12:50,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 00:12:50,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 00:12:50,513 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 00:12:50,513 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 00:12:50,513 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 00:12:50,513 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36ffbabf76f0a0e87302d8b80308134217d4fdef380ae154dfcdec710817c6e2 [2022-07-23 00:12:50,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 00:12:50,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 00:12:50,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 00:12:50,764 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 00:12:50,764 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 00:12:50,766 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-07-23 00:12:50,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15e5577ad/b75e5a8736774eeab7f374115729b795/FLAG34dfa5505 [2022-07-23 00:12:51,480 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 00:12:51,480 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-07-23 00:12:51,518 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15e5577ad/b75e5a8736774eeab7f374115729b795/FLAG34dfa5505 [2022-07-23 00:12:51,615 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15e5577ad/b75e5a8736774eeab7f374115729b795 [2022-07-23 00:12:51,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 00:12:51,618 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 00:12:51,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 00:12:51,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 00:12:51,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 00:12:51,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:12:51" (1/1) ... [2022-07-23 00:12:51,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4373f959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:12:51, skipping insertion in model container [2022-07-23 00:12:51,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:12:51" (1/1) ... [2022-07-23 00:12:51,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 00:12:51,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:12:52,060 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3834] [2022-07-23 00:12:52,060 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3835-3836] [2022-07-23 00:12:52,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[119274,119287] [2022-07-23 00:12:52,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:12:53,025 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 00:12:53,106 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3834] [2022-07-23 00:12:53,107 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3835-3836] [2022-07-23 00:12:53,122 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[119274,119287] [2022-07-23 00:12:53,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:12:53,409 INFO L208 MainTranslator]: Completed translation [2022-07-23 00:12:53,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:12:53 WrapperNode [2022-07-23 00:12:53,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 00:12:53,410 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 00:12:53,410 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 00:12:53,410 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 00:12:53,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:12:53" (1/1) ... [2022-07-23 00:12:53,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:12:53" (1/1) ... [2022-07-23 00:12:53,631 INFO L137 Inliner]: procedures = 264, calls = 3505, calls flagged for inlining = 131, calls inlined = 111, statements flattened = 6344 [2022-07-23 00:12:53,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 00:12:53,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 00:12:53,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 00:12:53,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 00:12:53,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:12:53" (1/1) ... [2022-07-23 00:12:53,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:12:53" (1/1) ... [2022-07-23 00:12:53,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:12:53" (1/1) ... [2022-07-23 00:12:53,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:12:53" (1/1) ... [2022-07-23 00:12:53,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:12:53" (1/1) ... [2022-07-23 00:12:53,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:12:53" (1/1) ... [2022-07-23 00:12:53,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:12:53" (1/1) ... [2022-07-23 00:12:53,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 00:12:53,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 00:12:53,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 00:12:53,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 00:12:53,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:12:53" (1/1) ... [2022-07-23 00:12:53,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:12:53,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:12:53,921 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) [2022-07-23 00:12:53,925 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 [2022-07-23 00:12:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2022-07-23 00:12:53,951 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2022-07-23 00:12:53,951 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2022-07-23 00:12:53,952 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2022-07-23 00:12:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2022-07-23 00:12:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-07-23 00:12:53,952 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-07-23 00:12:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-07-23 00:12:53,952 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-07-23 00:12:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-23 00:12:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 00:12:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 00:12:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 00:12:53,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 00:12:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-07-23 00:12:53,953 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-07-23 00:12:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2022-07-23 00:12:53,953 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2022-07-23 00:12:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-23 00:12:53,953 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-23 00:12:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-23 00:12:53,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-23 00:12:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 00:12:53,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 00:12:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-07-23 00:12:53,954 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-07-23 00:12:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-07-23 00:12:53,954 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2022-07-23 00:12:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2022-07-23 00:12:53,955 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2022-07-23 00:12:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-23 00:12:53,955 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-23 00:12:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-07-23 00:12:53,956 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-07-23 00:12:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 00:12:53,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 00:12:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-07-23 00:12:53,956 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-07-23 00:12:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-07-23 00:12:53,956 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-07-23 00:12:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 00:12:53,957 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 00:12:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 00:12:53,957 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 00:12:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-23 00:12:53,957 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-23 00:12:53,957 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2022-07-23 00:12:53,957 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2022-07-23 00:12:53,958 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2022-07-23 00:12:53,958 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2022-07-23 00:12:53,958 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2022-07-23 00:12:53,959 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2022-07-23 00:12:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 00:12:53,959 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-23 00:12:53,959 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-23 00:12:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-23 00:12:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2022-07-23 00:12:53,960 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2022-07-23 00:12:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-07-23 00:12:53,961 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-07-23 00:12:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 00:12:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2022-07-23 00:12:53,961 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2022-07-23 00:12:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2022-07-23 00:12:53,961 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2022-07-23 00:12:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-23 00:12:53,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-23 00:12:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-23 00:12:53,962 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-23 00:12:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 00:12:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 00:12:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-23 00:12:53,962 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-23 00:12:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-07-23 00:12:53,963 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-07-23 00:12:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-23 00:12:53,963 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-23 00:12:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2022-07-23 00:12:53,963 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2022-07-23 00:12:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-07-23 00:12:53,963 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-07-23 00:12:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2022-07-23 00:12:53,964 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2022-07-23 00:12:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_from_anchor [2022-07-23 00:12:53,964 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_from_anchor [2022-07-23 00:12:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-07-23 00:12:53,964 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-07-23 00:12:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-23 00:12:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-23 00:12:53,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-23 00:12:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-23 00:12:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-23 00:12:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2022-07-23 00:12:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2022-07-23 00:12:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-23 00:12:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-23 00:12:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-23 00:12:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-07-23 00:12:53,967 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-07-23 00:12:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 00:12:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2022-07-23 00:12:53,967 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2022-07-23 00:12:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-07-23 00:12:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-07-23 00:12:53,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 00:12:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 00:12:53,968 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-23 00:12:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-23 00:12:53,968 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2022-07-23 00:12:53,969 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2022-07-23 00:12:53,969 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2022-07-23 00:12:53,969 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2022-07-23 00:12:53,969 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-23 00:12:53,969 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-23 00:12:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-23 00:12:53,971 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-23 00:12:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-23 00:12:53,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-23 00:12:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2022-07-23 00:12:53,973 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2022-07-23 00:12:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2022-07-23 00:12:53,974 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2022-07-23 00:12:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2022-07-23 00:12:53,974 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2022-07-23 00:12:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 00:12:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 00:12:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 00:12:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-23 00:12:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-23 00:12:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2022-07-23 00:12:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2022-07-23 00:12:53,979 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2022-07-23 00:12:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2022-07-23 00:12:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2022-07-23 00:12:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2022-07-23 00:12:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-23 00:12:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-23 00:12:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 00:12:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 00:12:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2022-07-23 00:12:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2022-07-23 00:12:53,980 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2022-07-23 00:12:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2022-07-23 00:12:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 00:12:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 00:12:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 00:12:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-23 00:12:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-07-23 00:12:53,981 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-07-23 00:12:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-23 00:12:53,981 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-23 00:12:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-07-23 00:12:53,981 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-07-23 00:12:53,982 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_dtr_rts [2022-07-23 00:12:53,982 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_dtr_rts [2022-07-23 00:12:53,982 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-23 00:12:53,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-23 00:12:53,982 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-07-23 00:12:53,982 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-07-23 00:12:53,982 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2022-07-23 00:12:53,982 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2022-07-23 00:12:53,982 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2022-07-23 00:12:53,982 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2022-07-23 00:12:53,983 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2022-07-23 00:12:53,983 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2022-07-23 00:12:53,983 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2022-07-23 00:12:53,983 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2022-07-23 00:12:53,983 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-07-23 00:12:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-07-23 00:12:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-23 00:12:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-23 00:12:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 00:12:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-07-23 00:12:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-07-23 00:12:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-07-23 00:12:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-07-23 00:12:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2022-07-23 00:12:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2022-07-23 00:12:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 00:12:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 00:12:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-07-23 00:12:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-07-23 00:12:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-23 00:12:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-23 00:12:54,570 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 00:12:54,573 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 00:12:54,858 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 00:13:05,269 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 00:13:05,283 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 00:13:05,283 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 00:13:05,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:13:05 BoogieIcfgContainer [2022-07-23 00:13:05,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 00:13:05,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 00:13:05,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 00:13:05,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 00:13:05,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 12:12:51" (1/3) ... [2022-07-23 00:13:05,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6dad41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:13:05, skipping insertion in model container [2022-07-23 00:13:05,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:12:53" (2/3) ... [2022-07-23 00:13:05,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6dad41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:13:05, skipping insertion in model container [2022-07-23 00:13:05,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:13:05" (3/3) ... [2022-07-23 00:13:05,299 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-07-23 00:13:05,310 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 00:13:05,310 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 00:13:05,390 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 00:13:05,397 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@555c3ea5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@23c4bfc7 [2022-07-23 00:13:05,398 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 00:13:05,405 INFO L276 IsEmpty]: Start isEmpty. Operand has 1465 states, 1052 states have (on average 1.346958174904943) internal successors, (1417), 1067 states have internal predecessors, (1417), 330 states have call successors, (330), 82 states have call predecessors, (330), 81 states have return successors, (322), 322 states have call predecessors, (322), 322 states have call successors, (322) [2022-07-23 00:13:05,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-23 00:13:05,431 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:13:05,431 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:13:05,432 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:13:05,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:13:05,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1962807764, now seen corresponding path program 1 times [2022-07-23 00:13:05,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:13:05,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098988582] [2022-07-23 00:13:05,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:13:05,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:13:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:06,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:13:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:06,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:13:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:06,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:13:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:06,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:13:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:06,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:13:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:06,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:13:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:06,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:13:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:06,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:13:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:06,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:13:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:06,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:13:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:06,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:13:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:06,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 00:13:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:06,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 00:13:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:06,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 00:13:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:06,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-23 00:13:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:06,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-23 00:13:06,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:06,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-23 00:13:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:06,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-23 00:13:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:06,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-23 00:13:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:06,280 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-23 00:13:06,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:13:06,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098988582] [2022-07-23 00:13:06,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098988582] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:13:06,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:13:06,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 00:13:06,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19067726] [2022-07-23 00:13:06,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:13:06,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 00:13:06,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:13:06,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 00:13:06,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 00:13:06,311 INFO L87 Difference]: Start difference. First operand has 1465 states, 1052 states have (on average 1.346958174904943) internal successors, (1417), 1067 states have internal predecessors, (1417), 330 states have call successors, (330), 82 states have call predecessors, (330), 81 states have return successors, (322), 322 states have call predecessors, (322), 322 states have call successors, (322) Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-23 00:13:10,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:12,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:14,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:17,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:19,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:23,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:13:23,067 INFO L93 Difference]: Finished difference Result 4312 states and 6258 transitions. [2022-07-23 00:13:23,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 00:13:23,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 130 [2022-07-23 00:13:23,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:13:23,097 INFO L225 Difference]: With dead ends: 4312 [2022-07-23 00:13:23,097 INFO L226 Difference]: Without dead ends: 2811 [2022-07-23 00:13:23,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-23 00:13:23,107 INFO L413 NwaCegarLoop]: 2189 mSDtfsCounter, 2662 mSDsluCounter, 3399 mSDsCounter, 0 mSdLazyCounter, 2141 mSolverCounterSat, 1502 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2897 SdHoareTripleChecker+Valid, 5588 SdHoareTripleChecker+Invalid, 3648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1502 IncrementalHoareTripleChecker+Valid, 2141 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-07-23 00:13:23,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2897 Valid, 5588 Invalid, 3648 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1502 Valid, 2141 Invalid, 5 Unknown, 0 Unchecked, 16.3s Time] [2022-07-23 00:13:23,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2811 states. [2022-07-23 00:13:23,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2811 to 2727. [2022-07-23 00:13:23,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2727 states, 1977 states have (on average 1.3333333333333333) internal successors, (2636), 1989 states have internal predecessors, (2636), 589 states have call successors, (589), 160 states have call predecessors, (589), 160 states have return successors, (592), 587 states have call predecessors, (592), 588 states have call successors, (592) [2022-07-23 00:13:23,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2727 states to 2727 states and 3817 transitions. [2022-07-23 00:13:23,283 INFO L78 Accepts]: Start accepts. Automaton has 2727 states and 3817 transitions. Word has length 130 [2022-07-23 00:13:23,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:13:23,283 INFO L495 AbstractCegarLoop]: Abstraction has 2727 states and 3817 transitions. [2022-07-23 00:13:23,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-23 00:13:23,284 INFO L276 IsEmpty]: Start isEmpty. Operand 2727 states and 3817 transitions. [2022-07-23 00:13:23,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-07-23 00:13:23,292 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:13:23,293 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:13:23,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 00:13:23,293 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:13:23,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:13:23,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1585813839, now seen corresponding path program 1 times [2022-07-23 00:13:23,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:13:23,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947596861] [2022-07-23 00:13:23,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:13:23,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:13:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:23,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:13:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:23,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:13:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:23,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:13:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:23,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:13:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:23,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:13:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:23,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:13:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:23,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:13:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:23,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:13:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:23,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:13:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:23,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:13:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:23,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:13:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:23,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 00:13:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:23,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 00:13:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:23,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 00:13:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:23,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-23 00:13:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:23,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-23 00:13:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:23,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-23 00:13:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:23,768 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-23 00:13:23,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:13:23,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947596861] [2022-07-23 00:13:23,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947596861] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:13:23,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:13:23,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:13:23,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260787736] [2022-07-23 00:13:23,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:13:23,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:13:23,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:13:23,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:13:23,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:13:23,772 INFO L87 Difference]: Start difference. First operand 2727 states and 3817 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-23 00:13:26,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:28,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:35,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:37,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:40,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:13:40,055 INFO L93 Difference]: Finished difference Result 7326 states and 10268 transitions. [2022-07-23 00:13:40,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 00:13:40,056 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 130 [2022-07-23 00:13:40,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:13:40,075 INFO L225 Difference]: With dead ends: 7326 [2022-07-23 00:13:40,075 INFO L226 Difference]: Without dead ends: 4632 [2022-07-23 00:13:40,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-07-23 00:13:40,083 INFO L413 NwaCegarLoop]: 2147 mSDtfsCounter, 2637 mSDsluCounter, 3430 mSDsCounter, 0 mSdLazyCounter, 3530 mSolverCounterSat, 1950 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2904 SdHoareTripleChecker+Valid, 5577 SdHoareTripleChecker+Invalid, 5484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1950 IncrementalHoareTripleChecker+Valid, 3530 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-07-23 00:13:40,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2904 Valid, 5577 Invalid, 5484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1950 Valid, 3530 Invalid, 4 Unknown, 0 Unchecked, 15.9s Time] [2022-07-23 00:13:40,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2022-07-23 00:13:40,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4483. [2022-07-23 00:13:40,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4483 states, 3222 states have (on average 1.3178150217256364) internal successors, (4246), 3243 states have internal predecessors, (4246), 979 states have call successors, (979), 281 states have call predecessors, (979), 281 states have return successors, (982), 976 states have call predecessors, (982), 978 states have call successors, (982) [2022-07-23 00:13:40,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4483 states to 4483 states and 6207 transitions. [2022-07-23 00:13:40,214 INFO L78 Accepts]: Start accepts. Automaton has 4483 states and 6207 transitions. Word has length 130 [2022-07-23 00:13:40,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:13:40,215 INFO L495 AbstractCegarLoop]: Abstraction has 4483 states and 6207 transitions. [2022-07-23 00:13:40,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-23 00:13:40,215 INFO L276 IsEmpty]: Start isEmpty. Operand 4483 states and 6207 transitions. [2022-07-23 00:13:40,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-07-23 00:13:40,217 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:13:40,217 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:13:40,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 00:13:40,218 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:13:40,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:13:40,218 INFO L85 PathProgramCache]: Analyzing trace with hash -255606424, now seen corresponding path program 1 times [2022-07-23 00:13:40,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:13:40,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577997433] [2022-07-23 00:13:40,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:13:40,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:13:40,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:40,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:13:40,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:40,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:13:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:40,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:13:40,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:40,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:13:40,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:40,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:13:40,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:40,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:13:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:40,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:13:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:40,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:13:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:40,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:13:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:40,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:13:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:40,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:13:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:40,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 00:13:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:40,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 00:13:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:40,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 00:13:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:40,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-23 00:13:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:40,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 00:13:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:40,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-23 00:13:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:40,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:13:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:40,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-23 00:13:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:40,599 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-23 00:13:40,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:13:40,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577997433] [2022-07-23 00:13:40,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577997433] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:13:40,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:13:40,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:13:40,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4757129] [2022-07-23 00:13:40,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:13:40,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:13:40,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:13:40,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:13:40,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:13:40,601 INFO L87 Difference]: Start difference. First operand 4483 states and 6207 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-23 00:13:43,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:45,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:48,166 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:51,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:53,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:56,015 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:58,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:14:02,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:14:04,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:14:06,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:14:08,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:14:10,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:14:10,453 INFO L93 Difference]: Finished difference Result 11097 states and 15434 transitions. [2022-07-23 00:14:10,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 00:14:10,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 139 [2022-07-23 00:14:10,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:14:10,486 INFO L225 Difference]: With dead ends: 11097 [2022-07-23 00:14:10,486 INFO L226 Difference]: Without dead ends: 6647 [2022-07-23 00:14:10,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-07-23 00:14:10,502 INFO L413 NwaCegarLoop]: 1965 mSDtfsCounter, 2822 mSDsluCounter, 3317 mSDsCounter, 0 mSdLazyCounter, 3218 mSolverCounterSat, 1955 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3013 SdHoareTripleChecker+Valid, 5282 SdHoareTripleChecker+Invalid, 5184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1955 IncrementalHoareTripleChecker+Valid, 3218 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.5s IncrementalHoareTripleChecker+Time [2022-07-23 00:14:10,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3013 Valid, 5282 Invalid, 5184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1955 Valid, 3218 Invalid, 11 Unknown, 0 Unchecked, 29.5s Time] [2022-07-23 00:14:10,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6647 states. [2022-07-23 00:14:10,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6647 to 6401. [2022-07-23 00:14:10,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 4655 states have (on average 1.3271750805585392) internal successors, (6178), 4683 states have internal predecessors, (6178), 1327 states have call successors, (1327), 417 states have call predecessors, (1327), 418 states have return successors, (1334), 1322 states have call predecessors, (1334), 1326 states have call successors, (1334) [2022-07-23 00:14:10,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 8839 transitions. [2022-07-23 00:14:10,702 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 8839 transitions. Word has length 139 [2022-07-23 00:14:10,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:14:10,703 INFO L495 AbstractCegarLoop]: Abstraction has 6401 states and 8839 transitions. [2022-07-23 00:14:10,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-23 00:14:10,703 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 8839 transitions. [2022-07-23 00:14:10,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-07-23 00:14:10,710 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:14:10,710 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:14:10,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 00:14:10,710 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:14:10,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:14:10,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1585274107, now seen corresponding path program 1 times [2022-07-23 00:14:10,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:14:10,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53819584] [2022-07-23 00:14:10,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:14:10,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:14:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:10,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:14:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:10,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:14:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:14:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:14:11,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:14:11,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:14:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:14:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:14:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:14:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:14:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:14:11,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 00:14:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 00:14:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 00:14:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-23 00:14:11,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-23 00:14:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 00:14:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:14:11,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-23 00:14:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-23 00:14:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-23 00:14:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-23 00:14:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-23 00:14:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-23 00:14:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-23 00:14:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:11,222 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 547 trivial. 0 not checked. [2022-07-23 00:14:11,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:14:11,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53819584] [2022-07-23 00:14:11,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53819584] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:14:11,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:14:11,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 00:14:11,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115689459] [2022-07-23 00:14:11,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:14:11,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 00:14:11,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:14:11,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 00:14:11,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:14:11,224 INFO L87 Difference]: Start difference. First operand 6401 states and 8839 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-23 00:14:13,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:14:15,840 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:14:19,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:14:24,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:14:26,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:14:28,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:14:28,293 INFO L93 Difference]: Finished difference Result 13043 states and 18116 transitions. [2022-07-23 00:14:28,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 00:14:28,294 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 182 [2022-07-23 00:14:28,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:14:28,326 INFO L225 Difference]: With dead ends: 13043 [2022-07-23 00:14:28,326 INFO L226 Difference]: Without dead ends: 6664 [2022-07-23 00:14:28,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-23 00:14:28,349 INFO L413 NwaCegarLoop]: 1900 mSDtfsCounter, 615 mSDsluCounter, 5595 mSDsCounter, 0 mSdLazyCounter, 2846 mSolverCounterSat, 743 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 7495 SdHoareTripleChecker+Invalid, 3594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 743 IncrementalHoareTripleChecker+Valid, 2846 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-07-23 00:14:28,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 7495 Invalid, 3594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [743 Valid, 2846 Invalid, 5 Unknown, 0 Unchecked, 16.8s Time] [2022-07-23 00:14:28,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6664 states. [2022-07-23 00:14:28,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6664 to 6401. [2022-07-23 00:14:28,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 4655 states have (on average 1.3254564983888293) internal successors, (6170), 4683 states have internal predecessors, (6170), 1327 states have call successors, (1327), 417 states have call predecessors, (1327), 418 states have return successors, (1334), 1322 states have call predecessors, (1334), 1326 states have call successors, (1334) [2022-07-23 00:14:28,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 8831 transitions. [2022-07-23 00:14:28,611 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 8831 transitions. Word has length 182 [2022-07-23 00:14:28,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:14:28,613 INFO L495 AbstractCegarLoop]: Abstraction has 6401 states and 8831 transitions. [2022-07-23 00:14:28,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (27), 5 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-23 00:14:28,614 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 8831 transitions. [2022-07-23 00:14:28,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-07-23 00:14:28,619 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:14:28,619 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:14:28,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 00:14:28,620 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:14:28,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:14:28,620 INFO L85 PathProgramCache]: Analyzing trace with hash -871097058, now seen corresponding path program 1 times [2022-07-23 00:14:28,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:14:28,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363442327] [2022-07-23 00:14:28,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:14:28,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:14:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:28,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:14:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:28,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:14:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:28,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:14:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:28,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:14:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:28,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:14:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:28,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:14:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:28,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:14:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:28,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:14:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:28,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:14:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:28,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:14:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:28,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:14:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:28,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 00:14:28,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:28,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 00:14:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:28,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 00:14:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:28,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-23 00:14:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:29,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-23 00:14:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:29,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 00:14:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:29,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:14:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:29,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-23 00:14:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:29,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-23 00:14:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:29,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-23 00:14:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:29,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:14:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:29,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-23 00:14:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:29,061 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-07-23 00:14:29,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:14:29,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363442327] [2022-07-23 00:14:29,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363442327] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:14:29,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:14:29,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 00:14:29,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443584456] [2022-07-23 00:14:29,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:14:29,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 00:14:29,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:14:29,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 00:14:29,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-23 00:14:29,063 INFO L87 Difference]: Start difference. First operand 6401 states and 8831 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-23 00:14:31,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:14:33,703 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:14:37,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:14:43,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:14:45,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:14:48,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:14:48,313 INFO L93 Difference]: Finished difference Result 15895 states and 22740 transitions. [2022-07-23 00:14:48,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 00:14:48,314 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 184 [2022-07-23 00:14:48,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:14:48,353 INFO L225 Difference]: With dead ends: 15895 [2022-07-23 00:14:48,354 INFO L226 Difference]: Without dead ends: 9540 [2022-07-23 00:14:48,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2022-07-23 00:14:48,370 INFO L413 NwaCegarLoop]: 2588 mSDtfsCounter, 3583 mSDsluCounter, 6382 mSDsCounter, 0 mSdLazyCounter, 4579 mSolverCounterSat, 2025 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3840 SdHoareTripleChecker+Valid, 8970 SdHoareTripleChecker+Invalid, 6609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2025 IncrementalHoareTripleChecker+Valid, 4579 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2022-07-23 00:14:48,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3840 Valid, 8970 Invalid, 6609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2025 Valid, 4579 Invalid, 5 Unknown, 0 Unchecked, 18.8s Time] [2022-07-23 00:14:48,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9540 states. [2022-07-23 00:14:48,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9540 to 6405. [2022-07-23 00:14:48,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6405 states, 4659 states have (on average 1.3251770766258855) internal successors, (6174), 4687 states have internal predecessors, (6174), 1327 states have call successors, (1327), 417 states have call predecessors, (1327), 418 states have return successors, (1334), 1322 states have call predecessors, (1334), 1326 states have call successors, (1334) [2022-07-23 00:14:48,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6405 states to 6405 states and 8835 transitions. [2022-07-23 00:14:48,596 INFO L78 Accepts]: Start accepts. Automaton has 6405 states and 8835 transitions. Word has length 184 [2022-07-23 00:14:48,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:14:48,597 INFO L495 AbstractCegarLoop]: Abstraction has 6405 states and 8835 transitions. [2022-07-23 00:14:48,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-23 00:14:48,597 INFO L276 IsEmpty]: Start isEmpty. Operand 6405 states and 8835 transitions. [2022-07-23 00:14:48,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-23 00:14:48,605 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:14:48,606 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:14:48,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-23 00:14:48,606 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:14:48,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:14:48,607 INFO L85 PathProgramCache]: Analyzing trace with hash -2013342847, now seen corresponding path program 1 times [2022-07-23 00:14:48,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:14:48,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18119156] [2022-07-23 00:14:48,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:14:48,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:14:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:48,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:14:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:48,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:14:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:48,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:14:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:48,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:14:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:48,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:14:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:48,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:14:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:49,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:14:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:49,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:14:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:49,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:14:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:49,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:14:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:49,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:14:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:49,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 00:14:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:49,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 00:14:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:49,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 00:14:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:49,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-23 00:14:49,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:49,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-23 00:14:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:49,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 00:14:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:49,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:14:49,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:49,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-23 00:14:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:49,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-23 00:14:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:49,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-23 00:14:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:49,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-23 00:14:49,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:49,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-23 00:14:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:49,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-23 00:14:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:49,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-23 00:14:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:49,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-23 00:14:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:49,141 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-07-23 00:14:49,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:14:49,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18119156] [2022-07-23 00:14:49,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18119156] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:14:49,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:14:49,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:14:49,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853522781] [2022-07-23 00:14:49,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:14:49,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:14:49,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:14:49,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:14:49,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:14:49,143 INFO L87 Difference]: Start difference. First operand 6405 states and 8835 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-23 00:14:51,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:14:56,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:14:57,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:14:57,935 INFO L93 Difference]: Finished difference Result 6943 states and 9593 transitions. [2022-07-23 00:14:57,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 00:14:57,942 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 190 [2022-07-23 00:14:57,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:14:57,972 INFO L225 Difference]: With dead ends: 6943 [2022-07-23 00:14:57,972 INFO L226 Difference]: Without dead ends: 6940 [2022-07-23 00:14:57,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-23 00:14:57,979 INFO L413 NwaCegarLoop]: 1921 mSDtfsCounter, 2487 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 1296 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2706 SdHoareTripleChecker+Valid, 3895 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1296 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-07-23 00:14:57,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2706 Valid, 3895 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1296 Valid, 1229 Invalid, 2 Unknown, 0 Unchecked, 8.5s Time] [2022-07-23 00:14:57,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6940 states. [2022-07-23 00:14:58,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6940 to 6647. [2022-07-23 00:14:58,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6647 states, 4822 states have (on average 1.3195769390294483) internal successors, (6363), 4850 states have internal predecessors, (6363), 1357 states have call successors, (1357), 466 states have call predecessors, (1357), 467 states have return successors, (1364), 1352 states have call predecessors, (1364), 1356 states have call successors, (1364) [2022-07-23 00:14:58,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6647 states to 6647 states and 9084 transitions. [2022-07-23 00:14:58,206 INFO L78 Accepts]: Start accepts. Automaton has 6647 states and 9084 transitions. Word has length 190 [2022-07-23 00:14:58,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:14:58,207 INFO L495 AbstractCegarLoop]: Abstraction has 6647 states and 9084 transitions. [2022-07-23 00:14:58,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-23 00:14:58,207 INFO L276 IsEmpty]: Start isEmpty. Operand 6647 states and 9084 transitions. [2022-07-23 00:14:58,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-23 00:14:58,215 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:14:58,215 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:14:58,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-23 00:14:58,215 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:14:58,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:14:58,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1636348922, now seen corresponding path program 1 times [2022-07-23 00:14:58,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:14:58,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697000455] [2022-07-23 00:14:58,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:14:58,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:14:58,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:14:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:14:58,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:14:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:14:58,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:14:58,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:14:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:14:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:14:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:14:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:14:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:14:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 00:14:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 00:14:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 00:14:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-23 00:14:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-23 00:14:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 00:14:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:14:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-23 00:14:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-23 00:14:58,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-23 00:14:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-23 00:14:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-23 00:14:58,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-23 00:14:58,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:14:58,634 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-07-23 00:14:58,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:14:58,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697000455] [2022-07-23 00:14:58,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697000455] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:14:58,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:14:58,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 00:14:58,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389616281] [2022-07-23 00:14:58,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:14:58,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 00:14:58,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:14:58,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 00:14:58,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:14:58,637 INFO L87 Difference]: Start difference. First operand 6647 states and 9084 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-23 00:15:01,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:15:03,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:15:08,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:15:10,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:15:15,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:15:17,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:15:20,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:15:23,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:15:23,594 INFO L93 Difference]: Finished difference Result 17657 states and 24274 transitions. [2022-07-23 00:15:23,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-23 00:15:23,595 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 190 [2022-07-23 00:15:23,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:15:23,626 INFO L225 Difference]: With dead ends: 17657 [2022-07-23 00:15:23,627 INFO L226 Difference]: Without dead ends: 11056 [2022-07-23 00:15:23,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-07-23 00:15:23,646 INFO L413 NwaCegarLoop]: 2831 mSDtfsCounter, 3216 mSDsluCounter, 5553 mSDsCounter, 0 mSdLazyCounter, 5166 mSolverCounterSat, 2029 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3476 SdHoareTripleChecker+Valid, 8384 SdHoareTripleChecker+Invalid, 7202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2029 IncrementalHoareTripleChecker+Valid, 5166 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2022-07-23 00:15:23,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3476 Valid, 8384 Invalid, 7202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2029 Valid, 5166 Invalid, 7 Unknown, 0 Unchecked, 24.5s Time] [2022-07-23 00:15:23,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11056 states. [2022-07-23 00:15:23,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11056 to 10536. [2022-07-23 00:15:23,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10536 states, 7718 states have (on average 1.3169214822492874) internal successors, (10164), 7764 states have internal predecessors, (10164), 2074 states have call successors, (2074), 740 states have call predecessors, (2074), 743 states have return successors, (2081), 2065 states have call predecessors, (2081), 2073 states have call successors, (2081) [2022-07-23 00:15:23,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10536 states to 10536 states and 14319 transitions. [2022-07-23 00:15:23,942 INFO L78 Accepts]: Start accepts. Automaton has 10536 states and 14319 transitions. Word has length 190 [2022-07-23 00:15:23,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:15:23,943 INFO L495 AbstractCegarLoop]: Abstraction has 10536 states and 14319 transitions. [2022-07-23 00:15:23,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-23 00:15:23,943 INFO L276 IsEmpty]: Start isEmpty. Operand 10536 states and 14319 transitions. [2022-07-23 00:15:23,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-07-23 00:15:23,952 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:15:23,952 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:15:23,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-23 00:15:23,952 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:15:23,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:15:23,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1707749822, now seen corresponding path program 1 times [2022-07-23 00:15:23,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:15:23,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726007954] [2022-07-23 00:15:23,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:15:23,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:15:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:15:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:15:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:15:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:15:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:15:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:15:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:15:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:15:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:15:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:15:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:15:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 00:15:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 00:15:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 00:15:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-23 00:15:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-23 00:15:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 00:15:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:15:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-23 00:15:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-23 00:15:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-23 00:15:24,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-23 00:15:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-23 00:15:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:15:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-23 00:15:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:24,405 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-07-23 00:15:24,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:15:24,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726007954] [2022-07-23 00:15:24,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726007954] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:15:24,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:15:24,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 00:15:24,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88323538] [2022-07-23 00:15:24,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:15:24,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 00:15:24,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:15:24,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 00:15:24,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:15:24,408 INFO L87 Difference]: Start difference. First operand 10536 states and 14319 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-23 00:15:26,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:15:33,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:15:35,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:15:35,891 INFO L93 Difference]: Finished difference Result 21541 states and 29393 transitions. [2022-07-23 00:15:35,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 00:15:35,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 194 [2022-07-23 00:15:35,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:15:35,939 INFO L225 Difference]: With dead ends: 21541 [2022-07-23 00:15:35,939 INFO L226 Difference]: Without dead ends: 11039 [2022-07-23 00:15:35,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-07-23 00:15:35,971 INFO L413 NwaCegarLoop]: 1852 mSDtfsCounter, 1405 mSDsluCounter, 3421 mSDsCounter, 0 mSdLazyCounter, 2754 mSolverCounterSat, 1522 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1468 SdHoareTripleChecker+Valid, 5273 SdHoareTripleChecker+Invalid, 4278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1522 IncrementalHoareTripleChecker+Valid, 2754 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-07-23 00:15:35,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1468 Valid, 5273 Invalid, 4278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1522 Valid, 2754 Invalid, 2 Unknown, 0 Unchecked, 11.0s Time] [2022-07-23 00:15:35,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11039 states. [2022-07-23 00:15:36,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11039 to 10445. [2022-07-23 00:15:36,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10445 states, 7648 states have (on average 1.317860878661088) internal successors, (10079), 7697 states have internal predecessors, (10079), 2062 states have call successors, (2062), 731 states have call predecessors, (2062), 734 states have return successors, (2069), 2050 states have call predecessors, (2069), 2061 states have call successors, (2069) [2022-07-23 00:15:36,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10445 states to 10445 states and 14210 transitions. [2022-07-23 00:15:36,451 INFO L78 Accepts]: Start accepts. Automaton has 10445 states and 14210 transitions. Word has length 194 [2022-07-23 00:15:36,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:15:36,455 INFO L495 AbstractCegarLoop]: Abstraction has 10445 states and 14210 transitions. [2022-07-23 00:15:36,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-23 00:15:36,455 INFO L276 IsEmpty]: Start isEmpty. Operand 10445 states and 14210 transitions. [2022-07-23 00:15:36,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-07-23 00:15:36,469 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:15:36,469 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:15:36,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-23 00:15:36,470 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:15:36,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:15:36,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1996515318, now seen corresponding path program 1 times [2022-07-23 00:15:36,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:15:36,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852487850] [2022-07-23 00:15:36,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:15:36,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:15:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:15:36,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:15:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:15:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:15:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:15:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:15:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:15:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:15:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:15:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:15:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:15:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 00:15:36,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 00:15:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 00:15:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-23 00:15:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-23 00:15:36,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 00:15:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:15:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-23 00:15:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-23 00:15:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-23 00:15:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-23 00:15:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:36,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-23 00:15:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:37,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-23 00:15:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:37,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:15:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:37,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-23 00:15:37,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:15:37,024 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2022-07-23 00:15:37,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:15:37,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852487850] [2022-07-23 00:15:37,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852487850] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:15:37,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:15:37,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 00:15:37,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399672645] [2022-07-23 00:15:37,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:15:37,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 00:15:37,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:15:37,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 00:15:37,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:15:37,027 INFO L87 Difference]: Start difference. First operand 10445 states and 14210 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 00:15:39,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:15:41,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:15:47,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:15:49,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:15:55,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:15:57,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:15:59,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:01,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:03,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:16:03,531 INFO L93 Difference]: Finished difference Result 25001 states and 34058 transitions. [2022-07-23 00:16:03,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-23 00:16:03,540 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 204 [2022-07-23 00:16:03,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:16:03,588 INFO L225 Difference]: With dead ends: 25001 [2022-07-23 00:16:03,588 INFO L226 Difference]: Without dead ends: 14602 [2022-07-23 00:16:03,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-07-23 00:16:03,649 INFO L413 NwaCegarLoop]: 2876 mSDtfsCounter, 2563 mSDsluCounter, 5204 mSDsCounter, 0 mSdLazyCounter, 4680 mSolverCounterSat, 1559 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2828 SdHoareTripleChecker+Valid, 8080 SdHoareTripleChecker+Invalid, 6247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1559 IncrementalHoareTripleChecker+Valid, 4680 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time [2022-07-23 00:16:03,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2828 Valid, 8080 Invalid, 6247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1559 Valid, 4680 Invalid, 8 Unknown, 0 Unchecked, 26.0s Time] [2022-07-23 00:16:03,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14602 states. [2022-07-23 00:16:03,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14602 to 13911. [2022-07-23 00:16:03,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13911 states, 10275 states have (on average 1.319124087591241) internal successors, (13554), 10336 states have internal predecessors, (13554), 2624 states have call successors, (2624), 1006 states have call predecessors, (2624), 1011 states have return successors, (2635), 2608 states have call predecessors, (2635), 2623 states have call successors, (2635) [2022-07-23 00:16:03,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13911 states to 13911 states and 18813 transitions. [2022-07-23 00:16:04,001 INFO L78 Accepts]: Start accepts. Automaton has 13911 states and 18813 transitions. Word has length 204 [2022-07-23 00:16:04,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:16:04,002 INFO L495 AbstractCegarLoop]: Abstraction has 13911 states and 18813 transitions. [2022-07-23 00:16:04,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-07-23 00:16:04,002 INFO L276 IsEmpty]: Start isEmpty. Operand 13911 states and 18813 transitions. [2022-07-23 00:16:04,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-23 00:16:04,016 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:16:04,016 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:16:04,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-23 00:16:04,017 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:16:04,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:16:04,017 INFO L85 PathProgramCache]: Analyzing trace with hash 2009049299, now seen corresponding path program 1 times [2022-07-23 00:16:04,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:16:04,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690514383] [2022-07-23 00:16:04,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:16:04,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:16:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:16:04,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:16:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:16:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:16:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:16:04,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:16:04,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:16:04,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:16:04,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:16:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:16:04,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:16:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 00:16:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 00:16:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 00:16:04,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-23 00:16:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-23 00:16:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 00:16:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:16:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-23 00:16:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-23 00:16:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-23 00:16:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-23 00:16:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-23 00:16:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-23 00:16:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-23 00:16:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:04,550 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2022-07-23 00:16:04,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:16:04,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690514383] [2022-07-23 00:16:04,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690514383] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:16:04,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:16:04,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 00:16:04,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247772537] [2022-07-23 00:16:04,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:16:04,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 00:16:04,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:16:04,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 00:16:04,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-23 00:16:04,552 INFO L87 Difference]: Start difference. First operand 13911 states and 18813 transitions. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-23 00:16:07,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:09,131 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:15,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:17,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:16:17,707 INFO L93 Difference]: Finished difference Result 28583 states and 38766 transitions. [2022-07-23 00:16:17,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-23 00:16:17,708 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 212 [2022-07-23 00:16:17,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:16:17,747 INFO L225 Difference]: With dead ends: 28583 [2022-07-23 00:16:17,747 INFO L226 Difference]: Without dead ends: 14681 [2022-07-23 00:16:17,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-23 00:16:17,769 INFO L413 NwaCegarLoop]: 1854 mSDtfsCounter, 1668 mSDsluCounter, 4474 mSDsCounter, 0 mSdLazyCounter, 3731 mSolverCounterSat, 1618 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 6328 SdHoareTripleChecker+Invalid, 5352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1618 IncrementalHoareTripleChecker+Valid, 3731 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-07-23 00:16:17,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1769 Valid, 6328 Invalid, 5352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1618 Valid, 3731 Invalid, 3 Unknown, 0 Unchecked, 12.6s Time] [2022-07-23 00:16:17,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14681 states. [2022-07-23 00:16:18,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14681 to 13990. [2022-07-23 00:16:18,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13990 states, 10338 states have (on average 1.317662990907332) internal successors, (13622), 10400 states have internal predecessors, (13622), 2634 states have call successors, (2634), 1012 states have call predecessors, (2634), 1017 states have return successors, (2645), 2617 states have call predecessors, (2645), 2633 states have call successors, (2645) [2022-07-23 00:16:18,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13990 states to 13990 states and 18901 transitions. [2022-07-23 00:16:18,214 INFO L78 Accepts]: Start accepts. Automaton has 13990 states and 18901 transitions. Word has length 212 [2022-07-23 00:16:18,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:16:18,215 INFO L495 AbstractCegarLoop]: Abstraction has 13990 states and 18901 transitions. [2022-07-23 00:16:18,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (28), 6 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-23 00:16:18,215 INFO L276 IsEmpty]: Start isEmpty. Operand 13990 states and 18901 transitions. [2022-07-23 00:16:18,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-07-23 00:16:18,230 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:16:18,231 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:16:18,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-23 00:16:18,231 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:16:18,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:16:18,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1125540309, now seen corresponding path program 1 times [2022-07-23 00:16:18,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:16:18,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829781272] [2022-07-23 00:16:18,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:16:18,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:16:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:16:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:16:18,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:16:18,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:16:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:16:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:16:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:16:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:16:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:16:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:16:18,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:16:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 00:16:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 00:16:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 00:16:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-23 00:16:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-23 00:16:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-23 00:16:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:16:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-23 00:16:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-23 00:16:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-23 00:16:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-23 00:16:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-23 00:16:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-23 00:16:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-23 00:16:18,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:18,774 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2022-07-23 00:16:18,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:16:18,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829781272] [2022-07-23 00:16:18,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829781272] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:16:18,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:16:18,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-23 00:16:18,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616445720] [2022-07-23 00:16:18,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:16:18,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-23 00:16:18,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:16:18,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 00:16:18,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-23 00:16:18,777 INFO L87 Difference]: Start difference. First operand 13990 states and 18901 transitions. Second operand has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 7 states have internal predecessors, (104), 3 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-23 00:16:21,724 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:23,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:25,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:29,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:36,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:38,985 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:42,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:16:42,095 INFO L93 Difference]: Finished difference Result 28678 states and 38843 transitions. [2022-07-23 00:16:42,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-23 00:16:42,096 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 7 states have internal predecessors, (104), 3 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) Word has length 212 [2022-07-23 00:16:42,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:16:42,129 INFO L225 Difference]: With dead ends: 28678 [2022-07-23 00:16:42,129 INFO L226 Difference]: Without dead ends: 14673 [2022-07-23 00:16:42,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=617, Unknown=0, NotChecked=0, Total=756 [2022-07-23 00:16:42,147 INFO L413 NwaCegarLoop]: 1854 mSDtfsCounter, 1402 mSDsluCounter, 9524 mSDsCounter, 0 mSdLazyCounter, 8315 mSolverCounterSat, 1276 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 11378 SdHoareTripleChecker+Invalid, 9597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1276 IncrementalHoareTripleChecker+Valid, 8315 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.7s IncrementalHoareTripleChecker+Time [2022-07-23 00:16:42,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 11378 Invalid, 9597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1276 Valid, 8315 Invalid, 6 Unknown, 0 Unchecked, 22.7s Time] [2022-07-23 00:16:42,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14673 states. [2022-07-23 00:16:42,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14673 to 14020. [2022-07-23 00:16:42,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14020 states, 10353 states have (on average 1.3168163817251037) internal successors, (13633), 10430 states have internal predecessors, (13633), 2634 states have call successors, (2634), 1012 states have call predecessors, (2634), 1032 states have return successors, (2696), 2617 states have call predecessors, (2696), 2633 states have call successors, (2696) [2022-07-23 00:16:42,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14020 states to 14020 states and 18963 transitions. [2022-07-23 00:16:42,528 INFO L78 Accepts]: Start accepts. Automaton has 14020 states and 18963 transitions. Word has length 212 [2022-07-23 00:16:42,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:16:42,529 INFO L495 AbstractCegarLoop]: Abstraction has 14020 states and 18963 transitions. [2022-07-23 00:16:42,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 7 states have internal predecessors, (104), 3 states have call successors, (28), 6 states have call predecessors, (28), 2 states have return successors, (25), 4 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-23 00:16:42,529 INFO L276 IsEmpty]: Start isEmpty. Operand 14020 states and 18963 transitions. [2022-07-23 00:16:42,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-23 00:16:42,547 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:16:42,547 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:16:42,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-23 00:16:42,548 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:16:42,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:16:42,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1414599752, now seen corresponding path program 1 times [2022-07-23 00:16:42,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:16:42,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717464691] [2022-07-23 00:16:42,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:16:42,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:16:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:42,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:16:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:42,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:16:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:42,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:16:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:42,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:16:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:16:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:16:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:16:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:16:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:16:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:16:43,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:16:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 00:16:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 00:16:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 00:16:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-23 00:16:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-23 00:16:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:16:43,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-23 00:16:43,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:16:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 00:16:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-23 00:16:43,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:16:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-23 00:16:43,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-23 00:16:43,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-23 00:16:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-23 00:16:43,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-23 00:16:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-23 00:16:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-23 00:16:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:43,174 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2022-07-23 00:16:43,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:16:43,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717464691] [2022-07-23 00:16:43,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717464691] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:16:43,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:16:43,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-23 00:16:43,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952749587] [2022-07-23 00:16:43,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:16:43,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 00:16:43,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:16:43,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 00:16:43,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-23 00:16:43,177 INFO L87 Difference]: Start difference. First operand 14020 states and 18963 transitions. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-23 00:16:45,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:51,589 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:16:53,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:16:53,893 INFO L93 Difference]: Finished difference Result 28627 states and 38831 transitions. [2022-07-23 00:16:53,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 00:16:53,894 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 232 [2022-07-23 00:16:53,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:16:53,940 INFO L225 Difference]: With dead ends: 28627 [2022-07-23 00:16:53,940 INFO L226 Difference]: Without dead ends: 14622 [2022-07-23 00:16:53,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-23 00:16:53,967 INFO L413 NwaCegarLoop]: 1852 mSDtfsCounter, 1406 mSDsluCounter, 4515 mSDsCounter, 0 mSdLazyCounter, 3697 mSolverCounterSat, 1522 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 6367 SdHoareTripleChecker+Invalid, 5221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1522 IncrementalHoareTripleChecker+Valid, 3697 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-07-23 00:16:53,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1469 Valid, 6367 Invalid, 5221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1522 Valid, 3697 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2022-07-23 00:16:53,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14622 states. [2022-07-23 00:16:54,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14622 to 14035. [2022-07-23 00:16:54,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14035 states, 10368 states have (on average 1.316358024691358) internal successors, (13648), 10445 states have internal predecessors, (13648), 2634 states have call successors, (2634), 1012 states have call predecessors, (2634), 1032 states have return successors, (2696), 2617 states have call predecessors, (2696), 2633 states have call successors, (2696) [2022-07-23 00:16:54,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14035 states to 14035 states and 18978 transitions. [2022-07-23 00:16:54,451 INFO L78 Accepts]: Start accepts. Automaton has 14035 states and 18978 transitions. Word has length 232 [2022-07-23 00:16:54,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:16:54,453 INFO L495 AbstractCegarLoop]: Abstraction has 14035 states and 18978 transitions. [2022-07-23 00:16:54,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-23 00:16:54,453 INFO L276 IsEmpty]: Start isEmpty. Operand 14035 states and 18978 transitions. [2022-07-23 00:16:54,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-07-23 00:16:54,470 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:16:54,470 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:16:54,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-23 00:16:54,471 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:16:54,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:16:54,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1082455402, now seen corresponding path program 1 times [2022-07-23 00:16:54,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:16:54,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739560763] [2022-07-23 00:16:54,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:16:54,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:16:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:16:54,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:16:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:16:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:16:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:16:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:16:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:16:54,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:16:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:16:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:16:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:16:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 00:16:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 00:16:54,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 00:16:54,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:54,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-23 00:16:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:55,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-23 00:16:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:55,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:16:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:55,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-23 00:16:55,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:55,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:16:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:55,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 00:16:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:55,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 00:16:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:55,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:16:55,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:55,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-23 00:16:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:55,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-23 00:16:55,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:55,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-23 00:16:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:55,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-23 00:16:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:55,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-23 00:16:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:55,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-23 00:16:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:55,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-23 00:16:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:55,160 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2022-07-23 00:16:55,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:16:55,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739560763] [2022-07-23 00:16:55,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739560763] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:16:55,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579186294] [2022-07-23 00:16:55,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:16:55,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:16:55,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:16:55,162 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 00:16:55,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-23 00:16:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:56,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 6400 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-23 00:16:56,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 00:16:56,555 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2022-07-23 00:16:56,555 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 00:16:56,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579186294] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:16:56,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 00:16:56,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-07-23 00:16:56,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620540937] [2022-07-23 00:16:56,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:16:56,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 00:16:56,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:16:56,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 00:16:56,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-23 00:16:56,558 INFO L87 Difference]: Start difference. First operand 14035 states and 18978 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-23 00:16:57,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:16:57,030 INFO L93 Difference]: Finished difference Result 27874 states and 37688 transitions. [2022-07-23 00:16:57,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 00:16:57,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 233 [2022-07-23 00:16:57,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:16:57,079 INFO L225 Difference]: With dead ends: 27874 [2022-07-23 00:16:57,080 INFO L226 Difference]: Without dead ends: 13881 [2022-07-23 00:16:57,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-23 00:16:57,110 INFO L413 NwaCegarLoop]: 2021 mSDtfsCounter, 5 mSDsluCounter, 6048 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 8069 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 00:16:57,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 8069 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 00:16:57,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13881 states. [2022-07-23 00:16:57,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13881 to 13797. [2022-07-23 00:16:57,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13797 states, 10191 states have (on average 1.3192032185261506) internal successors, (13444), 10276 states have internal predecessors, (13444), 2591 states have call successors, (2591), 994 states have call predecessors, (2591), 1014 states have return successors, (2653), 2566 states have call predecessors, (2653), 2590 states have call successors, (2653) [2022-07-23 00:16:57,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13797 states to 13797 states and 18688 transitions. [2022-07-23 00:16:57,549 INFO L78 Accepts]: Start accepts. Automaton has 13797 states and 18688 transitions. Word has length 233 [2022-07-23 00:16:57,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:16:57,550 INFO L495 AbstractCegarLoop]: Abstraction has 13797 states and 18688 transitions. [2022-07-23 00:16:57,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 3 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-23 00:16:57,550 INFO L276 IsEmpty]: Start isEmpty. Operand 13797 states and 18688 transitions. [2022-07-23 00:16:57,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-07-23 00:16:57,571 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:16:57,572 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:16:57,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-23 00:16:57,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-23 00:16:57,796 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:16:57,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:16:57,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1880365989, now seen corresponding path program 1 times [2022-07-23 00:16:57,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:16:57,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927899183] [2022-07-23 00:16:57,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:16:57,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:16:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:16:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:16:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:16:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 00:16:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 00:16:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:16:58,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:16:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-23 00:16:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-23 00:16:58,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-23 00:16:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-23 00:16:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-23 00:16:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-23 00:16:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-23 00:16:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-23 00:16:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-23 00:16:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:16:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-23 00:16:58,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:16:58,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 00:16:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-23 00:16:58,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-23 00:16:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-23 00:16:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-23 00:16:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-23 00:16:58,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-23 00:16:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-23 00:16:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-23 00:16:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-23 00:16:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:16:58,404 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2022-07-23 00:16:58,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:16:58,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927899183] [2022-07-23 00:16:58,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927899183] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 00:16:58,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812547653] [2022-07-23 00:16:58,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:16:58,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 00:16:58,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:16:58,406 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 00:16:58,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process