/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 08:36:58,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 08:36:58,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 08:36:58,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 08:36:58,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 08:36:58,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 08:36:58,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 08:36:58,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 08:36:58,484 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 08:36:58,485 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 08:36:58,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 08:36:58,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 08:36:58,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 08:36:58,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 08:36:58,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 08:36:58,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 08:36:58,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 08:36:58,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 08:36:58,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 08:36:58,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 08:36:58,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 08:36:58,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 08:36:58,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 08:36:58,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 08:36:58,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 08:36:58,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 08:36:58,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 08:36:58,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 08:36:58,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 08:36:58,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 08:36:58,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 08:36:58,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 08:36:58,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 08:36:58,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 08:36:58,516 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 08:36:58,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 08:36:58,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 08:36:58,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 08:36:58,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 08:36:58,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 08:36:58,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 08:36:58,522 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 08:36:58,555 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 08:36:58,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 08:36:58,556 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 08:36:58,556 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 08:36:58,557 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 08:36:58,557 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 08:36:58,558 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 08:36:58,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 08:36:58,558 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 08:36:58,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 08:36:58,559 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 08:36:58,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 08:36:58,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 08:36:58,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 08:36:58,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 08:36:58,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 08:36:58,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 08:36:58,560 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 08:36:58,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 08:36:58,560 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 08:36:58,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 08:36:58,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 08:36:58,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 08:36:58,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 08:36:58,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 08:36:58,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 08:36:58,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 08:36:58,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 08:36:58,562 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 08:36:58,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 08:36:58,562 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 08:36:58,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 08:36:58,562 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 08:36:58,562 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 08:36:58,562 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 08:36:58,562 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 08:36:58,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 08:36:58,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 08:36:58,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 08:36:58,814 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 08:36:58,814 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 08:36:58,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2023-04-02 08:36:59,986 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 08:37:00,389 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 08:37:00,390 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2023-04-02 08:37:00,422 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7d464c4b/edd65d62c1a145d481b1acb9c9ed0af3/FLAGd05cf8663 [2023-04-02 08:37:00,437 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7d464c4b/edd65d62c1a145d481b1acb9c9ed0af3 [2023-04-02 08:37:00,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 08:37:00,440 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 08:37:00,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 08:37:00,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 08:37:00,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 08:37:00,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:37:00" (1/1) ... [2023-04-02 08:37:00,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26229983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:37:00, skipping insertion in model container [2023-04-02 08:37:00,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:37:00" (1/1) ... [2023-04-02 08:37:00,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 08:37:00,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 08:37:01,110 WARN L247 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-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i[159401,159414] [2023-04-02 08:37:01,355 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 08:37:01,385 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 08:37:01,485 WARN L247 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-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i[159401,159414] [2023-04-02 08:37:01,550 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 08:37:01,583 INFO L208 MainTranslator]: Completed translation [2023-04-02 08:37:01,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:37:01 WrapperNode [2023-04-02 08:37:01,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 08:37:01,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 08:37:01,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 08:37:01,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 08:37:01,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:37:01" (1/1) ... [2023-04-02 08:37:01,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:37:01" (1/1) ... [2023-04-02 08:37:01,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:37:01" (1/1) ... [2023-04-02 08:37:01,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:37:01" (1/1) ... [2023-04-02 08:37:01,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:37:01" (1/1) ... [2023-04-02 08:37:01,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:37:01" (1/1) ... [2023-04-02 08:37:01,734 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:37:01" (1/1) ... [2023-04-02 08:37:01,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:37:01" (1/1) ... [2023-04-02 08:37:01,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 08:37:01,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 08:37:01,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 08:37:01,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 08:37:01,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:37:01" (1/1) ... [2023-04-02 08:37:01,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 08:37:01,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 08:37:01,803 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) [2023-04-02 08:37:01,828 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 [2023-04-02 08:37:01,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 08:37:01,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 08:37:01,847 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 08:37:01,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-02 08:37:01,848 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-02 08:37:01,848 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-02 08:37:01,848 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2023-04-02 08:37:01,848 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 08:37:01,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-02 08:37:01,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-02 08:37:01,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-02 08:37:01,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-02 08:37:01,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-02 08:37:01,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-02 08:37:01,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-02 08:37:01,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-02 08:37:01,849 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-04-02 08:37:01,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-02 08:37:01,849 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_cmd [2023-04-02 08:37:01,849 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_bind [2023-04-02 08:37:01,849 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_unbind [2023-04-02 08:37:01,849 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_rx_fixup [2023-04-02 08:37:01,849 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_tx_fixup [2023-04-02 08:37:01,849 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_driver_init [2023-04-02 08:37:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_driver_exit [2023-04-02 08:37:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_driver_info_2 [2023-04-02 08:37:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2023-04-02 08:37:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 08:37:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2023-04-02 08:37:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2023-04-02 08:37:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2023-04-02 08:37:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2023-04-02 08:37:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2023-04-02 08:37:01,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_12 [2023-04-02 08:37:01,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_14 [2023-04-02 08:37:01,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_15 [2023-04-02 08:37:01,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2023-04-02 08:37:01,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2023-04-02 08:37:01,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2023-04-02 08:37:01,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2023-04-02 08:37:01,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2023-04-02 08:37:01,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-02 08:37:01,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-02 08:37:01,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-02 08:37:01,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-02 08:37:01,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2023-04-02 08:37:01,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-02 08:37:01,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2023-04-02 08:37:01,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2023-04-02 08:37:01,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2023-04-02 08:37:01,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2023-04-02 08:37:01,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2023-04-02 08:37:01,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-02 08:37:01,853 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2023-04-02 08:37:01,854 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-04-02 08:37:01,854 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-04-02 08:37:01,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2023-04-02 08:37:01,855 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_expand [2023-04-02 08:37:01,855 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-04-02 08:37:01,855 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-04-02 08:37:01,855 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-04-02 08:37:01,856 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-04-02 08:37:01,856 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2023-04-02 08:37:01,856 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-02 08:37:01,856 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-02 08:37:01,856 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2023-04-02 08:37:01,856 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2023-04-02 08:37:01,856 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2023-04-02 08:37:01,856 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2023-04-02 08:37:01,856 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2023-04-02 08:37:01,857 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2023-04-02 08:37:01,857 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_suspend [2023-04-02 08:37:01,857 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-02 08:37:01,857 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-02 08:37:01,857 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-02 08:37:01,857 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-02 08:37:01,857 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 08:37:01,857 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 08:37:01,857 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-02 08:37:01,858 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-02 08:37:01,858 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 08:37:01,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 08:37:01,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-02 08:37:01,858 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-02 08:37:01,858 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2023-04-02 08:37:01,858 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-02 08:37:01,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-02 08:37:01,859 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-02 08:37:01,859 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-02 08:37:01,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-02 08:37:01,860 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-02 08:37:01,860 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-04-02 08:37:01,860 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-04-02 08:37:01,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2023-04-02 08:37:01,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2023-04-02 08:37:01,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2023-04-02 08:37:01,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2023-04-02 08:37:01,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2023-04-02 08:37:01,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_12 [2023-04-02 08:37:01,861 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_expand [2023-04-02 08:37:01,861 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-04-02 08:37:01,861 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-04-02 08:37:01,861 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-04-02 08:37:01,861 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2023-04-02 08:37:01,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 08:37:01,862 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-04-02 08:37:01,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2023-04-02 08:37:01,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2023-04-02 08:37:01,862 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 08:37:01,862 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-02 08:37:01,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 08:37:01,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-02 08:37:01,863 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 08:37:01,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 08:37:01,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-02 08:37:01,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-02 08:37:01,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-02 08:37:01,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-02 08:37:01,863 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-02 08:37:01,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-02 08:37:01,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_driver_info_2 [2023-04-02 08:37:01,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2023-04-02 08:37:01,864 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2023-04-02 08:37:01,865 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-04-02 08:37:01,865 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-02 08:37:01,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_14 [2023-04-02 08:37:01,865 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-02 08:37:01,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_15 [2023-04-02 08:37:01,866 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2023-04-02 08:37:01,869 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2023-04-02 08:37:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-02 08:37:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 08:37:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-02 08:37:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2023-04-02 08:37:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_suspend [2023-04-02 08:37:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2023-04-02 08:37:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2023-04-02 08:37:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2023-04-02 08:37:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2023-04-02 08:37:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_cmd [2023-04-02 08:37:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 08:37:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-02 08:37:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 08:37:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 08:37:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_bind [2023-04-02 08:37:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_unbind [2023-04-02 08:37:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_rx_fixup [2023-04-02 08:37:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_tx_fixup [2023-04-02 08:37:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_driver_init [2023-04-02 08:37:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_driver_exit [2023-04-02 08:37:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2023-04-02 08:37:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-02 08:37:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-02 08:37:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 08:37:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-02 08:37:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 08:37:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2023-04-02 08:37:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2023-04-02 08:37:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2023-04-02 08:37:01,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2023-04-02 08:37:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2023-04-02 08:37:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-02 08:37:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-02 08:37:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-02 08:37:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-02 08:37:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2023-04-02 08:37:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2023-04-02 08:37:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2023-04-02 08:37:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2023-04-02 08:37:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 08:37:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 08:37:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 08:37:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-02 08:37:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-02 08:37:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 08:37:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-02 08:37:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-02 08:37:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-02 08:37:02,361 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 08:37:02,369 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 08:37:02,491 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-02 08:37:04,063 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 08:37:04,079 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 08:37:04,080 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-02 08:37:04,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:37:04 BoogieIcfgContainer [2023-04-02 08:37:04,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 08:37:04,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 08:37:04,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 08:37:04,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 08:37:04,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 08:37:00" (1/3) ... [2023-04-02 08:37:04,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@226c491c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:37:04, skipping insertion in model container [2023-04-02 08:37:04,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:37:01" (2/3) ... [2023-04-02 08:37:04,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@226c491c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:37:04, skipping insertion in model container [2023-04-02 08:37:04,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:37:04" (3/3) ... [2023-04-02 08:37:04,090 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2023-04-02 08:37:04,105 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 08:37:04,106 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 08:37:04,154 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 08:37:04,160 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@34d137f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 08:37:04,160 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 08:37:04,167 INFO L276 IsEmpty]: Start isEmpty. Operand has 453 states, 299 states have (on average 1.31438127090301) internal successors, (393), 307 states have internal predecessors, (393), 96 states have call successors, (96), 54 states have call predecessors, (96), 53 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2023-04-02 08:37:04,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-04-02 08:37:04,181 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:37:04,182 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 08:37:04,182 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:37:04,187 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:37:04,187 INFO L85 PathProgramCache]: Analyzing trace with hash 198478062, now seen corresponding path program 1 times [2023-04-02 08:37:04,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:37:04,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857774245] [2023-04-02 08:37:04,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:37:04,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:37:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:04,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:37:04,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:04,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:37:04,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:04,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:37:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:04,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:37:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:04,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:37:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:05,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 08:37:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:05,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 08:37:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:05,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:37:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:05,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:05,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:05,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 08:37:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:05,049 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-02 08:37:05,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:37:05,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857774245] [2023-04-02 08:37:05,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857774245] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:37:05,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:37:05,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 08:37:05,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666862367] [2023-04-02 08:37:05,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:37:05,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 08:37:05,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:37:05,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 08:37:05,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-02 08:37:05,107 INFO L87 Difference]: Start difference. First operand has 453 states, 299 states have (on average 1.31438127090301) internal successors, (393), 307 states have internal predecessors, (393), 96 states have call successors, (96), 54 states have call predecessors, (96), 53 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 3 states have internal predecessors, (34), 4 states have call successors, (13), 7 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 4 states have call successors, (10) [2023-04-02 08:37:13,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:37:13,710 INFO L93 Difference]: Finished difference Result 1722 states and 2569 transitions. [2023-04-02 08:37:13,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-02 08:37:13,713 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 3 states have internal predecessors, (34), 4 states have call successors, (13), 7 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 4 states have call successors, (10) Word has length 60 [2023-04-02 08:37:13,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:37:13,745 INFO L225 Difference]: With dead ends: 1722 [2023-04-02 08:37:13,745 INFO L226 Difference]: Without dead ends: 1256 [2023-04-02 08:37:13,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2023-04-02 08:37:13,765 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 2697 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 1673 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2760 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 3465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1673 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-04-02 08:37:13,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2760 Valid, 1103 Invalid, 3465 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1673 Valid, 1792 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-04-02 08:37:13,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2023-04-02 08:37:14,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 782. [2023-04-02 08:37:14,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 532 states have (on average 1.3026315789473684) internal successors, (693), 534 states have internal predecessors, (693), 162 states have call successors, (162), 90 states have call predecessors, (162), 87 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2023-04-02 08:37:14,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1014 transitions. [2023-04-02 08:37:14,021 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1014 transitions. Word has length 60 [2023-04-02 08:37:14,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:37:14,022 INFO L495 AbstractCegarLoop]: Abstraction has 782 states and 1014 transitions. [2023-04-02 08:37:14,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 3 states have internal predecessors, (34), 4 states have call successors, (13), 7 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 4 states have call successors, (10) [2023-04-02 08:37:14,022 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1014 transitions. [2023-04-02 08:37:14,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-04-02 08:37:14,026 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:37:14,027 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 08:37:14,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 08:37:14,027 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:37:14,028 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:37:14,028 INFO L85 PathProgramCache]: Analyzing trace with hash 305612997, now seen corresponding path program 1 times [2023-04-02 08:37:14,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:37:14,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558693266] [2023-04-02 08:37:14,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:37:14,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:37:14,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:14,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:37:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:14,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:37:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:14,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:37:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:14,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:37:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:14,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:37:14,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:14,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 08:37:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:14,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 08:37:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:14,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:14,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:14,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:14,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:37:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:14,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:14,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 08:37:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:14,643 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-02 08:37:14,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:37:14,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558693266] [2023-04-02 08:37:14,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558693266] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:37:14,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:37:14,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 08:37:14,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273238946] [2023-04-02 08:37:14,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:37:14,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 08:37:14,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:37:14,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 08:37:14,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-04-02 08:37:14,646 INFO L87 Difference]: Start difference. First operand 782 states and 1014 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 5 states have internal predecessors, (43), 4 states have call successors, (15), 9 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-02 08:37:24,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:37:24,875 INFO L93 Difference]: Finished difference Result 2983 states and 4179 transitions. [2023-04-02 08:37:24,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 08:37:24,876 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 5 states have internal predecessors, (43), 4 states have call successors, (15), 9 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 76 [2023-04-02 08:37:24,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:37:24,891 INFO L225 Difference]: With dead ends: 2983 [2023-04-02 08:37:24,891 INFO L226 Difference]: Without dead ends: 2200 [2023-04-02 08:37:24,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=208, Invalid=494, Unknown=0, NotChecked=0, Total=702 [2023-04-02 08:37:24,897 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 2524 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 3042 mSolverCounterSat, 1515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2585 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 4557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1515 IncrementalHoareTripleChecker+Valid, 3042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-04-02 08:37:24,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2585 Valid, 1306 Invalid, 4557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1515 Valid, 3042 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-04-02 08:37:24,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2200 states. [2023-04-02 08:37:25,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2200 to 1635. [2023-04-02 08:37:25,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1115 states have (on average 1.3031390134529148) internal successors, (1453), 1125 states have internal predecessors, (1453), 343 states have call successors, (343), 169 states have call predecessors, (343), 176 states have return successors, (366), 346 states have call predecessors, (366), 340 states have call successors, (366) [2023-04-02 08:37:25,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2162 transitions. [2023-04-02 08:37:25,261 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2162 transitions. Word has length 76 [2023-04-02 08:37:25,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:37:25,263 INFO L495 AbstractCegarLoop]: Abstraction has 1635 states and 2162 transitions. [2023-04-02 08:37:25,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 5 states have internal predecessors, (43), 4 states have call successors, (15), 9 states have call predecessors, (15), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-04-02 08:37:25,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2162 transitions. [2023-04-02 08:37:25,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-04-02 08:37:25,272 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:37:25,273 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-04-02 08:37:25,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 08:37:25,273 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:37:25,273 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:37:25,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1244441995, now seen corresponding path program 1 times [2023-04-02 08:37:25,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:37:25,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141110159] [2023-04-02 08:37:25,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:37:25,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:37:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:25,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:37:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:25,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:37:25,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:25,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:37:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:25,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:37:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:25,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:37:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:25,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 08:37:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:25,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 08:37:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:25,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 08:37:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:25,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:25,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:25,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 08:37:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:25,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 08:37:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:25,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:25,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:25,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:37:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:25,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:25,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-04-02 08:37:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:25,815 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-02 08:37:25,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:37:25,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141110159] [2023-04-02 08:37:25,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141110159] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:37:25,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:37:25,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 08:37:25,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000174540] [2023-04-02 08:37:25,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:37:25,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 08:37:25,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:37:25,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 08:37:25,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-04-02 08:37:25,818 INFO L87 Difference]: Start difference. First operand 1635 states and 2162 transitions. Second operand has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (20), 10 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-04-02 08:37:32,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:37:32,940 INFO L93 Difference]: Finished difference Result 4277 states and 5896 transitions. [2023-04-02 08:37:32,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-04-02 08:37:32,940 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (20), 10 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 118 [2023-04-02 08:37:32,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:37:32,956 INFO L225 Difference]: With dead ends: 4277 [2023-04-02 08:37:32,956 INFO L226 Difference]: Without dead ends: 2665 [2023-04-02 08:37:32,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2023-04-02 08:37:32,963 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 1342 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 2316 mSolverCounterSat, 759 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 3075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 759 IncrementalHoareTripleChecker+Valid, 2316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-04-02 08:37:32,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 1169 Invalid, 3075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [759 Valid, 2316 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-04-02 08:37:32,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2023-04-02 08:37:33,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 1964. [2023-04-02 08:37:33,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1964 states, 1367 states have (on average 1.3167520117044624) internal successors, (1800), 1377 states have internal predecessors, (1800), 383 states have call successors, (383), 206 states have call predecessors, (383), 213 states have return successors, (406), 386 states have call predecessors, (406), 380 states have call successors, (406) [2023-04-02 08:37:33,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1964 states to 1964 states and 2589 transitions. [2023-04-02 08:37:33,324 INFO L78 Accepts]: Start accepts. Automaton has 1964 states and 2589 transitions. Word has length 118 [2023-04-02 08:37:33,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:37:33,325 INFO L495 AbstractCegarLoop]: Abstraction has 1964 states and 2589 transitions. [2023-04-02 08:37:33,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (20), 10 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2023-04-02 08:37:33,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1964 states and 2589 transitions. [2023-04-02 08:37:33,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-04-02 08:37:33,331 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:37:33,332 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 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] [2023-04-02 08:37:33,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 08:37:33,332 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:37:33,332 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:37:33,333 INFO L85 PathProgramCache]: Analyzing trace with hash -970814353, now seen corresponding path program 1 times [2023-04-02 08:37:33,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:37:33,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12982212] [2023-04-02 08:37:33,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:37:33,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:37:33,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:37:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:37:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:37:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:37:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:37:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 08:37:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 08:37:33,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:37:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 08:37:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:33,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 08:37:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 08:37:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 08:37:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 08:37:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 08:37:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 08:37:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:37:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-04-02 08:37:33,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:33,970 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-04-02 08:37:33,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:37:33,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12982212] [2023-04-02 08:37:33,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12982212] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:37:33,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:37:33,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 08:37:33,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572517986] [2023-04-02 08:37:33,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:37:33,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 08:37:33,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:37:33,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 08:37:33,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-04-02 08:37:33,974 INFO L87 Difference]: Start difference. First operand 1964 states and 2589 transitions. Second operand has 13 states, 13 states have (on average 6.923076923076923) internal successors, (90), 3 states have internal predecessors, (90), 5 states have call successors, (27), 12 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 5 states have call successors, (24) [2023-04-02 08:37:46,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:37:46,595 INFO L93 Difference]: Finished difference Result 6107 states and 8439 transitions. [2023-04-02 08:37:46,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 08:37:46,597 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.923076923076923) internal successors, (90), 3 states have internal predecessors, (90), 5 states have call successors, (27), 12 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 5 states have call successors, (24) Word has length 159 [2023-04-02 08:37:46,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:37:46,620 INFO L225 Difference]: With dead ends: 6107 [2023-04-02 08:37:46,620 INFO L226 Difference]: Without dead ends: 4181 [2023-04-02 08:37:46,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=231, Invalid=639, Unknown=0, NotChecked=0, Total=870 [2023-04-02 08:37:46,629 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 2087 mSDsluCounter, 1937 mSDsCounter, 0 mSdLazyCounter, 4097 mSolverCounterSat, 1324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2142 SdHoareTripleChecker+Valid, 2277 SdHoareTripleChecker+Invalid, 5421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1324 IncrementalHoareTripleChecker+Valid, 4097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2023-04-02 08:37:46,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2142 Valid, 2277 Invalid, 5421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1324 Valid, 4097 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2023-04-02 08:37:46,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4181 states. [2023-04-02 08:37:47,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4181 to 3022. [2023-04-02 08:37:47,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3022 states, 2113 states have (on average 1.307146237576905) internal successors, (2762), 2133 states have internal predecessors, (2762), 573 states have call successors, (573), 318 states have call predecessors, (573), 335 states have return successors, (614), 582 states have call predecessors, (614), 570 states have call successors, (614) [2023-04-02 08:37:47,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3022 states to 3022 states and 3949 transitions. [2023-04-02 08:37:47,303 INFO L78 Accepts]: Start accepts. Automaton has 3022 states and 3949 transitions. Word has length 159 [2023-04-02 08:37:47,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:37:47,305 INFO L495 AbstractCegarLoop]: Abstraction has 3022 states and 3949 transitions. [2023-04-02 08:37:47,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.923076923076923) internal successors, (90), 3 states have internal predecessors, (90), 5 states have call successors, (27), 12 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 5 states have call successors, (24) [2023-04-02 08:37:47,305 INFO L276 IsEmpty]: Start isEmpty. Operand 3022 states and 3949 transitions. [2023-04-02 08:37:47,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-04-02 08:37:47,310 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:37:47,311 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 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] [2023-04-02 08:37:47,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 08:37:47,312 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:37:47,312 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:37:47,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1987905479, now seen corresponding path program 1 times [2023-04-02 08:37:47,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:37:47,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773397815] [2023-04-02 08:37:47,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:37:47,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:37:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:47,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:37:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:47,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:37:47,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:47,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:37:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:47,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:37:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:47,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:37:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:47,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 08:37:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:47,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 08:37:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:47,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:47,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:47,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:37:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:47,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:47,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 08:37:47,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:47,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:47,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 08:37:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:47,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 08:37:47,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:47,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 08:37:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:48,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 08:37:48,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:48,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:48,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:48,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 08:37:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:48,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 08:37:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:48,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:37:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:48,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:37:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:48,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-04-02 08:37:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:37:48,340 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-04-02 08:37:48,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:37:48,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773397815] [2023-04-02 08:37:48,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773397815] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:37:48,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:37:48,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 08:37:48,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140992113] [2023-04-02 08:37:48,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:37:48,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 08:37:48,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:37:48,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 08:37:48,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2023-04-02 08:37:48,343 INFO L87 Difference]: Start difference. First operand 3022 states and 3949 transitions. Second operand has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 5 states have internal predecessors, (90), 4 states have call successors, (27), 12 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-02 08:37:59,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:37:59,601 INFO L93 Difference]: Finished difference Result 7141 states and 9830 transitions. [2023-04-02 08:37:59,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 08:37:59,602 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 5 states have internal predecessors, (90), 4 states have call successors, (27), 12 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 159 [2023-04-02 08:37:59,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:37:59,621 INFO L225 Difference]: With dead ends: 7141 [2023-04-02 08:37:59,621 INFO L226 Difference]: Without dead ends: 4157 [2023-04-02 08:37:59,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=196, Invalid=616, Unknown=0, NotChecked=0, Total=812 [2023-04-02 08:37:59,632 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 1249 mSDsluCounter, 2067 mSDsCounter, 0 mSdLazyCounter, 5034 mSolverCounterSat, 843 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 5877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 843 IncrementalHoareTripleChecker+Valid, 5034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-04-02 08:37:59,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1292 Valid, 2295 Invalid, 5877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [843 Valid, 5034 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2023-04-02 08:37:59,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4157 states. [2023-04-02 08:38:00,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4157 to 3054. [2023-04-02 08:38:00,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3054 states, 2137 states have (on average 1.3036967711745437) internal successors, (2786), 2157 states have internal predecessors, (2786), 573 states have call successors, (573), 318 states have call predecessors, (573), 343 states have return successors, (632), 590 states have call predecessors, (632), 570 states have call successors, (632) [2023-04-02 08:38:00,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3054 states to 3054 states and 3991 transitions. [2023-04-02 08:38:00,267 INFO L78 Accepts]: Start accepts. Automaton has 3054 states and 3991 transitions. Word has length 159 [2023-04-02 08:38:00,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:38:00,267 INFO L495 AbstractCegarLoop]: Abstraction has 3054 states and 3991 transitions. [2023-04-02 08:38:00,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.294117647058823) internal successors, (90), 5 states have internal predecessors, (90), 4 states have call successors, (27), 12 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-02 08:38:00,268 INFO L276 IsEmpty]: Start isEmpty. Operand 3054 states and 3991 transitions. [2023-04-02 08:38:00,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-04-02 08:38:00,273 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:38:00,273 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 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] [2023-04-02 08:38:00,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 08:38:00,273 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:38:00,274 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:38:00,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1616534371, now seen corresponding path program 1 times [2023-04-02 08:38:00,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:38:00,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630866057] [2023-04-02 08:38:00,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:38:00,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:38:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:00,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:38:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:00,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:38:00,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:00,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:38:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:00,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:38:00,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:00,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:38:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:00,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 08:38:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:00,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 08:38:00,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:00,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:00,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:00,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:00,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:38:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:00,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:00,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 08:38:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:00,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:00,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 08:38:00,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:00,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 08:38:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:00,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 08:38:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:01,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 08:38:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:01,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:01,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:01,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:01,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 08:38:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:01,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 08:38:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:01,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:38:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:01,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 08:38:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:01,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:38:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:01,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:01,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-04-02 08:38:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:01,531 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-04-02 08:38:01,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:38:01,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630866057] [2023-04-02 08:38:01,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630866057] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:38:01,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:38:01,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-04-02 08:38:01,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206627475] [2023-04-02 08:38:01,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:38:01,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-04-02 08:38:01,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:38:01,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-04-02 08:38:01,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2023-04-02 08:38:01,535 INFO L87 Difference]: Start difference. First operand 3054 states and 3991 transitions. Second operand has 21 states, 21 states have (on average 4.619047619047619) internal successors, (97), 8 states have internal predecessors, (97), 7 states have call successors, (29), 13 states have call predecessors, (29), 4 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) [2023-04-02 08:38:12,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:38:12,316 INFO L93 Difference]: Finished difference Result 7181 states and 9892 transitions. [2023-04-02 08:38:12,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-04-02 08:38:12,325 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.619047619047619) internal successors, (97), 8 states have internal predecessors, (97), 7 states have call successors, (29), 13 states have call predecessors, (29), 4 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) Word has length 170 [2023-04-02 08:38:12,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:38:12,346 INFO L225 Difference]: With dead ends: 7181 [2023-04-02 08:38:12,346 INFO L226 Difference]: Without dead ends: 4165 [2023-04-02 08:38:12,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=240, Invalid=1482, Unknown=0, NotChecked=0, Total=1722 [2023-04-02 08:38:12,358 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 1694 mSDsluCounter, 2576 mSDsCounter, 0 mSdLazyCounter, 5791 mSolverCounterSat, 1075 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1739 SdHoareTripleChecker+Valid, 2809 SdHoareTripleChecker+Invalid, 6866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1075 IncrementalHoareTripleChecker+Valid, 5791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-04-02 08:38:12,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1739 Valid, 2809 Invalid, 6866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1075 Valid, 5791 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2023-04-02 08:38:12,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4165 states. [2023-04-02 08:38:12,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4165 to 3086. [2023-04-02 08:38:12,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3086 states, 2161 states have (on average 1.2947709393799167) internal successors, (2798), 2181 states have internal predecessors, (2798), 573 states have call successors, (573), 318 states have call predecessors, (573), 351 states have return successors, (640), 598 states have call predecessors, (640), 570 states have call successors, (640) [2023-04-02 08:38:12,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3086 states to 3086 states and 4011 transitions. [2023-04-02 08:38:12,931 INFO L78 Accepts]: Start accepts. Automaton has 3086 states and 4011 transitions. Word has length 170 [2023-04-02 08:38:12,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:38:12,931 INFO L495 AbstractCegarLoop]: Abstraction has 3086 states and 4011 transitions. [2023-04-02 08:38:12,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.619047619047619) internal successors, (97), 8 states have internal predecessors, (97), 7 states have call successors, (29), 13 states have call predecessors, (29), 4 states have return successors, (26), 7 states have call predecessors, (26), 7 states have call successors, (26) [2023-04-02 08:38:12,932 INFO L276 IsEmpty]: Start isEmpty. Operand 3086 states and 4011 transitions. [2023-04-02 08:38:12,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-04-02 08:38:12,938 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:38:12,938 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 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] [2023-04-02 08:38:12,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 08:38:12,938 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:38:12,939 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:38:12,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1599169461, now seen corresponding path program 1 times [2023-04-02 08:38:12,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:38:12,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871143302] [2023-04-02 08:38:12,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:38:12,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:38:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:38:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:38:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:38:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:38:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:38:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 08:38:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 08:38:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:38:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 08:38:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 08:38:13,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 08:38:13,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 08:38:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 08:38:13,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:13,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:13,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 08:38:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 08:38:13,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:38:13,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 08:38:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-04-02 08:38:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:38:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:13,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 08:38:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:13,781 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-04-02 08:38:13,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:38:13,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871143302] [2023-04-02 08:38:13,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871143302] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 08:38:13,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391941796] [2023-04-02 08:38:13,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:38:13,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 08:38:13,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 08:38:13,785 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) [2023-04-02 08:38:13,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 08:38:14,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:14,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 1649 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 08:38:14,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 08:38:14,424 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-04-02 08:38:14,424 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 08:38:14,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391941796] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:38:14,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 08:38:14,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 17 [2023-04-02 08:38:14,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428895116] [2023-04-02 08:38:14,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:38:14,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 08:38:14,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:38:14,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 08:38:14,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2023-04-02 08:38:14,427 INFO L87 Difference]: Start difference. First operand 3086 states and 4011 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 08:38:15,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:38:15,236 INFO L93 Difference]: Finished difference Result 6144 states and 7994 transitions. [2023-04-02 08:38:15,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 08:38:15,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 176 [2023-04-02 08:38:15,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:38:15,250 INFO L225 Difference]: With dead ends: 6144 [2023-04-02 08:38:15,250 INFO L226 Difference]: Without dead ends: 3087 [2023-04-02 08:38:15,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 216 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2023-04-02 08:38:15,258 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 2 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 08:38:15,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1647 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 08:38:15,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3087 states. [2023-04-02 08:38:15,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3087 to 3087. [2023-04-02 08:38:15,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3087 states, 2162 states have (on average 1.2946345975948197) internal successors, (2799), 2182 states have internal predecessors, (2799), 573 states have call successors, (573), 318 states have call predecessors, (573), 351 states have return successors, (640), 598 states have call predecessors, (640), 570 states have call successors, (640) [2023-04-02 08:38:15,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3087 states to 3087 states and 4012 transitions. [2023-04-02 08:38:15,911 INFO L78 Accepts]: Start accepts. Automaton has 3087 states and 4012 transitions. Word has length 176 [2023-04-02 08:38:15,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:38:15,912 INFO L495 AbstractCegarLoop]: Abstraction has 3087 states and 4012 transitions. [2023-04-02 08:38:15,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 08:38:15,912 INFO L276 IsEmpty]: Start isEmpty. Operand 3087 states and 4012 transitions. [2023-04-02 08:38:15,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-04-02 08:38:15,918 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:38:15,918 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 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] [2023-04-02 08:38:15,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-02 08:38:16,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 08:38:16,129 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:38:16,129 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:38:16,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1039082359, now seen corresponding path program 1 times [2023-04-02 08:38:16,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:38:16,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635065001] [2023-04-02 08:38:16,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:38:16,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:38:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:16,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:38:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:16,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:38:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:16,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:38:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:16,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:38:16,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:16,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:38:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:16,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 08:38:16,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:16,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 08:38:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:16,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:16,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:16,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:38:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:16,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:16,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 08:38:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:16,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:16,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 08:38:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:16,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 08:38:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:16,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-04-02 08:38:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:17,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 08:38:17,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:17,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:17,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:17,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:17,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 08:38:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:17,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 08:38:17,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:17,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:38:17,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:17,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 08:38:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:17,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-04-02 08:38:17,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:17,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:38:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:17,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:17,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:17,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-04-02 08:38:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:17,131 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-04-02 08:38:17,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:38:17,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635065001] [2023-04-02 08:38:17,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635065001] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 08:38:17,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714295798] [2023-04-02 08:38:17,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:38:17,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 08:38:17,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 08:38:17,133 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) [2023-04-02 08:38:17,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 08:38:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:17,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 1679 conjuncts, 8 conjunts are in the unsatisfiable core [2023-04-02 08:38:17,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 08:38:17,875 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-04-02 08:38:17,876 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 08:38:18,119 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-04-02 08:38:18,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714295798] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 08:38:18,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 08:38:18,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5] total 22 [2023-04-02 08:38:18,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242989574] [2023-04-02 08:38:18,120 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 08:38:18,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-04-02 08:38:18,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:38:18,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-04-02 08:38:18,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2023-04-02 08:38:18,122 INFO L87 Difference]: Start difference. First operand 3087 states and 4012 transitions. Second operand has 22 states, 22 states have (on average 8.545454545454545) internal successors, (188), 10 states have internal predecessors, (188), 4 states have call successors, (75), 14 states have call predecessors, (75), 5 states have return successors, (53), 2 states have call predecessors, (53), 4 states have call successors, (53) [2023-04-02 08:38:22,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 08:38:26,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:38:26,827 INFO L93 Difference]: Finished difference Result 7247 states and 9868 transitions. [2023-04-02 08:38:26,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-04-02 08:38:26,827 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.545454545454545) internal successors, (188), 10 states have internal predecessors, (188), 4 states have call successors, (75), 14 states have call predecessors, (75), 5 states have return successors, (53), 2 states have call predecessors, (53), 4 states have call successors, (53) Word has length 178 [2023-04-02 08:38:26,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:38:26,849 INFO L225 Difference]: With dead ends: 7247 [2023-04-02 08:38:26,850 INFO L226 Difference]: Without dead ends: 4187 [2023-04-02 08:38:26,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 395 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=306, Invalid=1176, Unknown=0, NotChecked=0, Total=1482 [2023-04-02 08:38:26,859 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 1634 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 2548 mSolverCounterSat, 1189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1670 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 3737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1189 IncrementalHoareTripleChecker+Valid, 2548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-04-02 08:38:26,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1670 Valid, 858 Invalid, 3737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1189 Valid, 2548 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2023-04-02 08:38:26,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4187 states. [2023-04-02 08:38:27,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4187 to 3090. [2023-04-02 08:38:27,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3090 states, 2165 states have (on average 1.2942263279445727) internal successors, (2802), 2185 states have internal predecessors, (2802), 573 states have call successors, (573), 318 states have call predecessors, (573), 351 states have return successors, (640), 598 states have call predecessors, (640), 570 states have call successors, (640) [2023-04-02 08:38:27,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3090 states to 3090 states and 4015 transitions. [2023-04-02 08:38:27,456 INFO L78 Accepts]: Start accepts. Automaton has 3090 states and 4015 transitions. Word has length 178 [2023-04-02 08:38:27,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:38:27,456 INFO L495 AbstractCegarLoop]: Abstraction has 3090 states and 4015 transitions. [2023-04-02 08:38:27,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.545454545454545) internal successors, (188), 10 states have internal predecessors, (188), 4 states have call successors, (75), 14 states have call predecessors, (75), 5 states have return successors, (53), 2 states have call predecessors, (53), 4 states have call successors, (53) [2023-04-02 08:38:27,457 INFO L276 IsEmpty]: Start isEmpty. Operand 3090 states and 4015 transitions. [2023-04-02 08:38:27,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-04-02 08:38:27,463 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:38:27,463 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 6, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 08:38:27,481 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 08:38:27,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-04-02 08:38:27,679 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:38:27,679 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:38:27,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1526774934, now seen corresponding path program 1 times [2023-04-02 08:38:27,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:38:27,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201870058] [2023-04-02 08:38:27,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:38:27,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:38:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:29,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:38:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:29,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:38:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:29,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:38:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:29,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:38:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:29,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:38:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:29,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 08:38:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:29,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 08:38:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:29,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:29,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:29,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:29,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:38:29,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:29,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:29,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 08:38:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:29,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:29,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 08:38:29,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:29,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 08:38:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:29,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 08:38:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:29,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 08:38:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:29,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:29,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 08:38:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:29,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:30,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:30,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 08:38:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:30,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 08:38:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:30,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:38:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:30,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 08:38:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:30,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-04-02 08:38:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:30,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:38:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:30,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:30,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-04-02 08:38:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:30,515 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-04-02 08:38:30,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:38:30,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201870058] [2023-04-02 08:38:30,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201870058] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:38:30,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:38:30,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2023-04-02 08:38:30,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151466922] [2023-04-02 08:38:30,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:38:30,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-04-02 08:38:30,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:38:30,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-04-02 08:38:30,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2023-04-02 08:38:30,519 INFO L87 Difference]: Start difference. First operand 3090 states and 4015 transitions. Second operand has 28 states, 27 states have (on average 4.2592592592592595) internal successors, (115), 12 states have internal predecessors, (115), 8 states have call successors, (32), 14 states have call predecessors, (32), 6 states have return successors, (29), 9 states have call predecessors, (29), 8 states have call successors, (29) [2023-04-02 08:38:42,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 08:38:50,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:38:50,904 INFO L93 Difference]: Finished difference Result 7667 states and 10660 transitions. [2023-04-02 08:38:50,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-04-02 08:38:50,905 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 4.2592592592592595) internal successors, (115), 12 states have internal predecessors, (115), 8 states have call successors, (32), 14 states have call predecessors, (32), 6 states have return successors, (29), 9 states have call predecessors, (29), 8 states have call successors, (29) Word has length 204 [2023-04-02 08:38:50,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:38:50,923 INFO L225 Difference]: With dead ends: 7667 [2023-04-02 08:38:50,924 INFO L226 Difference]: Without dead ends: 4619 [2023-04-02 08:38:50,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 870 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=406, Invalid=3376, Unknown=0, NotChecked=0, Total=3782 [2023-04-02 08:38:50,933 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 1668 mSDsluCounter, 2370 mSDsCounter, 0 mSdLazyCounter, 11190 mSolverCounterSat, 1346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 2514 SdHoareTripleChecker+Invalid, 12536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1346 IncrementalHoareTripleChecker+Valid, 11190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2023-04-02 08:38:50,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1704 Valid, 2514 Invalid, 12536 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1346 Valid, 11190 Invalid, 0 Unknown, 0 Unchecked, 18.2s Time] [2023-04-02 08:38:50,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4619 states. [2023-04-02 08:38:51,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4619 to 3154. [2023-04-02 08:38:51,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3154 states, 2213 states have (on average 1.2878445549028468) internal successors, (2850), 2229 states have internal predecessors, (2850), 581 states have call successors, (581), 318 states have call predecessors, (581), 359 states have return successors, (668), 618 states have call predecessors, (668), 578 states have call successors, (668) [2023-04-02 08:38:51,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3154 states to 3154 states and 4099 transitions. [2023-04-02 08:38:51,552 INFO L78 Accepts]: Start accepts. Automaton has 3154 states and 4099 transitions. Word has length 204 [2023-04-02 08:38:51,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:38:51,552 INFO L495 AbstractCegarLoop]: Abstraction has 3154 states and 4099 transitions. [2023-04-02 08:38:51,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 4.2592592592592595) internal successors, (115), 12 states have internal predecessors, (115), 8 states have call successors, (32), 14 states have call predecessors, (32), 6 states have return successors, (29), 9 states have call predecessors, (29), 8 states have call successors, (29) [2023-04-02 08:38:51,553 INFO L276 IsEmpty]: Start isEmpty. Operand 3154 states and 4099 transitions. [2023-04-02 08:38:51,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-04-02 08:38:51,559 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:38:51,559 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 6, 5, 3, 3, 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] [2023-04-02 08:38:51,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 08:38:51,559 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:38:51,560 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:38:51,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1436143797, now seen corresponding path program 2 times [2023-04-02 08:38:51,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:38:51,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448944091] [2023-04-02 08:38:51,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:38:51,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:38:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:52,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:38:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:52,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:38:52,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:52,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:38:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:52,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:38:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:52,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:38:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:52,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 08:38:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:52,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 08:38:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:52,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:52,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:52,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:52,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:38:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:52,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:52,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 08:38:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:52,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:52,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 08:38:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:52,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 08:38:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:53,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 08:38:53,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:53,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 08:38:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:53,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:53,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:53,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:53,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 08:38:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:53,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 08:38:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:53,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:38:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:54,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 08:38:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:54,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 08:38:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:54,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:38:54,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:54,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:38:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:54,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-04-02 08:38:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:38:54,059 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2023-04-02 08:38:54,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:38:54,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448944091] [2023-04-02 08:38:54,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448944091] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:38:54,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:38:54,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2023-04-02 08:38:54,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423687692] [2023-04-02 08:38:54,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:38:54,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-04-02 08:38:54,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:38:54,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-04-02 08:38:54,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2023-04-02 08:38:54,062 INFO L87 Difference]: Start difference. First operand 3154 states and 4099 transitions. Second operand has 28 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 12 states have internal predecessors, (102), 8 states have call successors, (30), 14 states have call predecessors, (30), 6 states have return successors, (27), 9 states have call predecessors, (27), 8 states have call successors, (27) [2023-04-02 08:39:10,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:39:10,406 INFO L93 Difference]: Finished difference Result 7751 states and 10760 transitions. [2023-04-02 08:39:10,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-04-02 08:39:10,407 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 12 states have internal predecessors, (102), 8 states have call successors, (30), 14 states have call predecessors, (30), 6 states have return successors, (27), 9 states have call predecessors, (27), 8 states have call successors, (27) Word has length 184 [2023-04-02 08:39:10,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:39:10,424 INFO L225 Difference]: With dead ends: 7751 [2023-04-02 08:39:10,424 INFO L226 Difference]: Without dead ends: 4639 [2023-04-02 08:39:10,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=387, Invalid=3153, Unknown=0, NotChecked=0, Total=3540 [2023-04-02 08:39:10,433 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 2063 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 10332 mSolverCounterSat, 1556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2092 SdHoareTripleChecker+Valid, 2219 SdHoareTripleChecker+Invalid, 11888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1556 IncrementalHoareTripleChecker+Valid, 10332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2023-04-02 08:39:10,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2092 Valid, 2219 Invalid, 11888 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1556 Valid, 10332 Invalid, 0 Unknown, 0 Unchecked, 14.1s Time] [2023-04-02 08:39:10,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4639 states. [2023-04-02 08:39:10,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4639 to 3170. [2023-04-02 08:39:10,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3170 states, 2229 states have (on average 1.2839838492597577) internal successors, (2862), 2237 states have internal predecessors, (2862), 581 states have call successors, (581), 318 states have call predecessors, (581), 359 states have return successors, (668), 626 states have call predecessors, (668), 578 states have call successors, (668) [2023-04-02 08:39:10,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3170 states to 3170 states and 4111 transitions. [2023-04-02 08:39:10,994 INFO L78 Accepts]: Start accepts. Automaton has 3170 states and 4111 transitions. Word has length 184 [2023-04-02 08:39:10,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:39:10,994 INFO L495 AbstractCegarLoop]: Abstraction has 3170 states and 4111 transitions. [2023-04-02 08:39:10,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 3.7777777777777777) internal successors, (102), 12 states have internal predecessors, (102), 8 states have call successors, (30), 14 states have call predecessors, (30), 6 states have return successors, (27), 9 states have call predecessors, (27), 8 states have call successors, (27) [2023-04-02 08:39:10,994 INFO L276 IsEmpty]: Start isEmpty. Operand 3170 states and 4111 transitions. [2023-04-02 08:39:11,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-04-02 08:39:11,001 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:39:11,002 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 6, 5, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 08:39:11,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 08:39:11,002 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:39:11,002 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:39:11,002 INFO L85 PathProgramCache]: Analyzing trace with hash 432082938, now seen corresponding path program 1 times [2023-04-02 08:39:11,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:39:11,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035783674] [2023-04-02 08:39:11,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:39:11,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:39:11,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:12,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:39:12,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:12,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:39:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:12,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 08:39:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:12,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:39:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:12,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:39:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:12,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 08:39:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:13,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 08:39:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:13,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:39:13,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:13,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:39:13,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:13,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:39:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:13,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:39:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:13,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 08:39:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:13,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:39:13,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:13,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 08:39:13,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:13,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 08:39:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:13,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 08:39:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:14,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 08:39:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:14,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:39:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:14,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 08:39:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:15,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:39:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:15,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:39:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:15,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 08:39:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:15,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 08:39:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:16,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:39:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:16,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 08:39:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:16,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 08:39:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:16,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 08:39:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:16,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 08:39:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:16,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 08:39:16,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:16,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:39:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:16,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-04-02 08:39:16,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:16,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:39:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:16,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:39:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:16,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-04-02 08:39:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:16,343 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 29 proven. 11 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-04-02 08:39:16,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:39:16,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035783674] [2023-04-02 08:39:16,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035783674] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 08:39:16,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982436038] [2023-04-02 08:39:16,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:39:16,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 08:39:16,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 08:39:16,345 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 08:39:16,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-02 08:39:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:39:16,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 2000 conjuncts, 81 conjunts are in the unsatisfiable core [2023-04-02 08:39:16,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 08:39:24,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-02 08:39:41,356 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-04-02 08:39:41,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2023-04-02 08:39:45,645 INFO L321 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2023-04-02 08:39:45,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 36 [2023-04-02 08:39:45,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2023-04-02 08:39:45,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 5 [2023-04-02 08:39:45,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2023-04-02 08:39:48,061 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-04-02 08:39:48,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 31 [2023-04-02 08:39:48,394 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-04-02 08:39:48,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2023-04-02 08:39:48,587 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 56 proven. 20 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-04-02 08:39:48,587 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 08:39:48,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 291 [2023-04-02 08:39:48,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 44 [2023-04-02 08:39:48,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2023-04-02 08:39:49,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982436038] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 08:39:49,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-04-02 08:39:49,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 34] total 77 [2023-04-02 08:39:49,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882121543] [2023-04-02 08:39:49,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-04-02 08:39:49,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2023-04-02 08:39:49,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:39:49,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2023-04-02 08:39:49,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=512, Invalid=6253, Unknown=41, NotChecked=0, Total=6806 [2023-04-02 08:39:49,645 INFO L87 Difference]: Start difference. First operand 3170 states and 4111 transitions. Second operand has 77 states, 75 states have (on average 3.546666666666667) internal successors, (266), 52 states have internal predecessors, (266), 29 states have call successors, (71), 20 states have call predecessors, (71), 27 states have return successors, (67), 33 states have call predecessors, (67), 29 states have call successors, (67) [2023-04-02 08:39:55,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-04-02 08:39:56,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 08:39:57,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 08:40:04,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 08:40:12,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 08:40:17,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-04-02 08:40:26,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-04-02 08:40:28,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-04-02 08:40:34,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-04-02 08:40:40,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-04-02 08:40:43,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-04-02 08:40:45,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-04-02 08:40:51,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]