/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-47dffc7-1-144_2a-drivers--net--usb--cdc-phonet.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:34:42,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:34:42,511 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:34:42,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:34:42,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:34:42,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:34:42,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:34:42,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:34:42,562 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:34:42,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:34:42,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:34:42,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:34:42,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:34:42,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:34:42,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:34:42,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:34:42,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:34:42,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:34:42,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:34:42,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:34:42,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:34:42,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:34:42,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:34:42,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:34:42,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:34:42,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:34:42,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:34:42,590 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:34:42,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:34:42,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:34:42,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:34:42,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:34:42,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:34:42,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:34:42,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:34:42,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:34:42,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:34:42,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:34:42,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:34:42,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:34:42,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:34:42,606 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:34:42,634 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:34:42,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:34:42,635 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:34:42,636 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:34:42,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:34:42,640 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:34:42,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:34:42,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:34:42,641 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:34:42,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:34:42,642 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:34:42,642 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:34:42,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:34:42,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:34:42,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:34:42,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:34:42,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:34:42,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:34:42,644 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:34:42,644 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:34:42,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:34:42,645 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:34:42,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:34:42,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:34:42,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:34:42,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:34:42,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:34:42,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:34:42,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:34:42,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:34:42,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:34:42,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:34:42,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:34:42,648 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:34:43,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:34:43,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:34:43,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:34:43,040 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:34:43,041 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:34:43,043 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-47dffc7-1-144_2a-drivers--net--usb--cdc-phonet.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-10-15 21:34:43,131 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3fe18ab1/2b6c9fcbe4ca4709976bb34b4479bf12/FLAGea6a752eb [2022-10-15 21:34:44,223 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:34:44,224 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-47dffc7-1-144_2a-drivers--net--usb--cdc-phonet.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-10-15 21:34:44,273 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3fe18ab1/2b6c9fcbe4ca4709976bb34b4479bf12/FLAGea6a752eb [2022-10-15 21:34:44,642 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3fe18ab1/2b6c9fcbe4ca4709976bb34b4479bf12 [2022-10-15 21:34:44,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:34:44,651 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:34:44,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:34:44,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:34:44,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:34:44,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:34:44" (1/1) ... [2022-10-15 21:34:44,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@346cdc42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:44, skipping insertion in model container [2022-10-15 21:34:44,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:34:44" (1/1) ... [2022-10-15 21:34:44,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:34:44,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:34:46,009 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-47dffc7-1-144_2a-drivers--net--usb--cdc-phonet.ko-entry_point_ldv-val-v0.8.cil.out.i[188986,188999] [2022-10-15 21:34:46,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:34:46,108 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:34:46,360 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-47dffc7-1-144_2a-drivers--net--usb--cdc-phonet.ko-entry_point_ldv-val-v0.8.cil.out.i[188986,188999] [2022-10-15 21:34:46,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:34:46,544 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:34:46,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:46 WrapperNode [2022-10-15 21:34:46,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:34:46,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:34:46,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:34:46,548 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:34:46,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:46" (1/1) ... [2022-10-15 21:34:46,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:46" (1/1) ... [2022-10-15 21:34:46,837 INFO L138 Inliner]: procedures = 153, calls = 606, calls flagged for inlining = 71, calls inlined = 71, statements flattened = 1873 [2022-10-15 21:34:46,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:34:46,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:34:46,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:34:46,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:34:46,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:46" (1/1) ... [2022-10-15 21:34:46,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:46" (1/1) ... [2022-10-15 21:34:46,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:46" (1/1) ... [2022-10-15 21:34:46,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:46" (1/1) ... [2022-10-15 21:34:46,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:46" (1/1) ... [2022-10-15 21:34:47,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:46" (1/1) ... [2022-10-15 21:34:47,022 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:46" (1/1) ... [2022-10-15 21:34:47,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:46" (1/1) ... [2022-10-15 21:34:47,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:34:47,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:34:47,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:34:47,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:34:47,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:46" (1/1) ... [2022-10-15 21:34:47,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:34:47,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:34:47,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:34:47,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:34:47,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_11 [2022-10-15 21:34:47,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_11 [2022-10-15 21:34:47,200 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-15 21:34:47,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-15 21:34:47,200 INFO L130 BoogieDeclarations]: Found specification of procedure usbpn_ioctl [2022-10-15 21:34:47,200 INFO L138 BoogieDeclarations]: Found implementation of procedure usbpn_ioctl [2022-10-15 21:34:47,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:34:47,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_3 [2022-10-15 21:34:47,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_3 [2022-10-15 21:34:47,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_8 [2022-10-15 21:34:47,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_8 [2022-10-15 21:34:47,201 INFO L130 BoogieDeclarations]: Found specification of procedure usbpn_close [2022-10-15 21:34:47,201 INFO L138 BoogieDeclarations]: Found implementation of procedure usbpn_close [2022-10-15 21:34:47,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:34:47,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:34:47,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:34:47,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:34:47,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:34:47,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-15 21:34:47,203 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-15 21:34:47,203 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-10-15 21:34:47,203 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-10-15 21:34:47,203 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-15 21:34:47,204 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-10-15 21:34:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-10-15 21:34:47,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-10-15 21:34:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-10-15 21:34:47,204 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-10-15 21:34:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2022-10-15 21:34:47,205 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2022-10-15 21:34:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:34:47,205 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:34:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-10-15 21:34:47,205 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-10-15 21:34:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-15 21:34:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-15 21:34:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:34:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:34:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-10-15 21:34:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-10-15 21:34:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-10-15 21:34:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure usbpn_disconnect [2022-10-15 21:34:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure usbpn_disconnect [2022-10-15 21:34:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure usbpn_set_mtu [2022-10-15 21:34:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure usbpn_set_mtu [2022-10-15 21:34:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2022-10-15 21:34:47,207 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2022-10-15 21:34:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:34:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:34:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:34:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:34:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:34:47,208 INFO L130 BoogieDeclarations]: Found specification of procedure rx_submit [2022-10-15 21:34:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_submit [2022-10-15 21:34:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-10-15 21:34:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-10-15 21:34:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:34:47,209 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:34:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-10-15 21:34:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-10-15 21:34:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:34:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-10-15 21:34:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-10-15 21:34:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-15 21:34:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-15 21:34:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:34:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-15 21:34:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-15 21:34:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:34:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:34:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-15 21:34:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:34:47,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:34:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:34:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-10-15 21:34:47,212 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-10-15 21:34:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-10-15 21:34:47,213 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-10-15 21:34:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-15 21:34:47,213 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-15 21:34:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:34:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:34:47,213 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-10-15 21:34:47,214 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-10-15 21:34:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-15 21:34:47,214 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-15 21:34:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-15 21:34:47,214 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-15 21:34:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-15 21:34:47,215 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-15 21:34:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-10-15 21:34:47,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-10-15 21:34:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:34:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:34:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:34:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:34:47,216 INFO L130 BoogieDeclarations]: Found specification of procedure rx_complete [2022-10-15 21:34:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_complete [2022-10-15 21:34:47,700 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:34:47,703 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:34:48,454 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:34:51,043 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:34:51,058 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:34:51,058 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:34:51,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:34:51 BoogieIcfgContainer [2022-10-15 21:34:51,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:34:51,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:34:51,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:34:51,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:34:51,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:34:44" (1/3) ... [2022-10-15 21:34:51,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@84cc2b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:34:51, skipping insertion in model container [2022-10-15 21:34:51,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:46" (2/3) ... [2022-10-15 21:34:51,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@84cc2b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:34:51, skipping insertion in model container [2022-10-15 21:34:51,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:34:51" (3/3) ... [2022-10-15 21:34:51,073 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-47dffc7-1-144_2a-drivers--net--usb--cdc-phonet.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-10-15 21:34:51,096 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:34:51,096 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-10-15 21:34:51,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:34:51,197 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=FINITE_AUTOMATA, 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;@39de167c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:34:51,198 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-10-15 21:34:51,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 657 states, 478 states have (on average 1.395397489539749) internal successors, (667), 522 states have internal predecessors, (667), 113 states have call successors, (113), 40 states have call predecessors, (113), 39 states have return successors, (107), 105 states have call predecessors, (107), 107 states have call successors, (107) [2022-10-15 21:34:51,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-15 21:34:51,225 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:34:51,226 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:34:51,227 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-10-15 21:34:51,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:34:51,234 INFO L85 PathProgramCache]: Analyzing trace with hash -301173937, now seen corresponding path program 1 times [2022-10-15 21:34:51,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:34:51,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643297955] [2022-10-15 21:34:51,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:34:51,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:34:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:51,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:34:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:52,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:34:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:52,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:34:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:52,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:34:52,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:52,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:34:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:52,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:34:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:52,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:34:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:52,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:34:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:52,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:34:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:52,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-15 21:34:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:52,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-15 21:34:52,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:52,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-15 21:34:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:52,318 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-10-15 21:34:52,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:34:52,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643297955] [2022-10-15 21:34:52,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643297955] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:34:52,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:34:52,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 21:34:52,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108660979] [2022-10-15 21:34:52,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:34:52,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:34:52,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:34:52,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:34:52,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:34:52,383 INFO L87 Difference]: Start difference. First operand has 657 states, 478 states have (on average 1.395397489539749) internal successors, (667), 522 states have internal predecessors, (667), 113 states have call successors, (113), 40 states have call predecessors, (113), 39 states have return successors, (107), 105 states have call predecessors, (107), 107 states have call successors, (107) Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-15 21:34:56,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:34:58,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:35:01,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:35:01,186 INFO L93 Difference]: Finished difference Result 1994 states and 2775 transitions. [2022-10-15 21:35:01,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:35:01,190 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 80 [2022-10-15 21:35:01,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:35:01,221 INFO L225 Difference]: With dead ends: 1994 [2022-10-15 21:35:01,221 INFO L226 Difference]: Without dead ends: 1290 [2022-10-15 21:35:01,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:35:01,242 INFO L413 NwaCegarLoop]: 913 mSDtfsCounter, 2161 mSDsluCounter, 1747 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 902 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2225 SdHoareTripleChecker+Valid, 2660 SdHoareTripleChecker+Invalid, 2079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 902 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:35:01,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2225 Valid, 2660 Invalid, 2079 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [902 Valid, 1177 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-10-15 21:35:01,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2022-10-15 21:35:01,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 1101. [2022-10-15 21:35:01,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1101 states, 825 states have (on average 1.3612121212121213) internal successors, (1123), 863 states have internal predecessors, (1123), 178 states have call successors, (178), 72 states have call predecessors, (178), 72 states have return successors, (178), 174 states have call predecessors, (178), 178 states have call successors, (178) [2022-10-15 21:35:01,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1101 states to 1101 states and 1479 transitions. [2022-10-15 21:35:01,479 INFO L78 Accepts]: Start accepts. Automaton has 1101 states and 1479 transitions. Word has length 80 [2022-10-15 21:35:01,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:35:01,481 INFO L495 AbstractCegarLoop]: Abstraction has 1101 states and 1479 transitions. [2022-10-15 21:35:01,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-15 21:35:01,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1101 states and 1479 transitions. [2022-10-15 21:35:01,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-15 21:35:01,486 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:35:01,487 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:35:01,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:35:01,487 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-10-15 21:35:01,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:35:01,488 INFO L85 PathProgramCache]: Analyzing trace with hash -837864741, now seen corresponding path program 1 times [2022-10-15 21:35:01,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:35:01,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990357335] [2022-10-15 21:35:01,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:35:01,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:35:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:01,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:35:01,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:01,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:01,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:01,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:35:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:01,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:01,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:01,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:35:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:01,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:01,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:01,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-15 21:35:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:01,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-15 21:35:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:01,892 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-10-15 21:35:01,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:35:01,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990357335] [2022-10-15 21:35:01,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990357335] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:35:01,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:35:01,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:35:01,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147691118] [2022-10-15 21:35:01,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:35:01,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:35:01,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:35:01,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:35:01,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:35:01,897 INFO L87 Difference]: Start difference. First operand 1101 states and 1479 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-15 21:35:05,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:35:08,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:35:08,554 INFO L93 Difference]: Finished difference Result 3426 states and 4667 transitions. [2022-10-15 21:35:08,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:35:08,555 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 80 [2022-10-15 21:35:08,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:35:08,577 INFO L225 Difference]: With dead ends: 3426 [2022-10-15 21:35:08,577 INFO L226 Difference]: Without dead ends: 2353 [2022-10-15 21:35:08,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:35:08,584 INFO L413 NwaCegarLoop]: 1243 mSDtfsCounter, 1569 mSDsluCounter, 1217 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 684 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1641 SdHoareTripleChecker+Valid, 2460 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 684 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:35:08,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1641 Valid, 2460 Invalid, 1474 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [684 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-10-15 21:35:08,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2353 states. [2022-10-15 21:35:08,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2353 to 2045. [2022-10-15 21:35:08,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2045 states, 1542 states have (on average 1.350194552529183) internal successors, (2082), 1605 states have internal predecessors, (2082), 329 states have call successors, (329), 136 states have call predecessors, (329), 148 states have return successors, (369), 322 states have call predecessors, (369), 329 states have call successors, (369) [2022-10-15 21:35:08,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2045 states to 2045 states and 2780 transitions. [2022-10-15 21:35:08,785 INFO L78 Accepts]: Start accepts. Automaton has 2045 states and 2780 transitions. Word has length 80 [2022-10-15 21:35:08,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:35:08,786 INFO L495 AbstractCegarLoop]: Abstraction has 2045 states and 2780 transitions. [2022-10-15 21:35:08,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-15 21:35:08,787 INFO L276 IsEmpty]: Start isEmpty. Operand 2045 states and 2780 transitions. [2022-10-15 21:35:08,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-10-15 21:35:08,789 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:35:08,789 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-10-15 21:35:08,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:35:08,790 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-10-15 21:35:08,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:35:08,791 INFO L85 PathProgramCache]: Analyzing trace with hash 2078301437, now seen corresponding path program 1 times [2022-10-15 21:35:08,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:35:08,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709001449] [2022-10-15 21:35:08,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:35:08,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:35:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:09,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:35:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:09,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:09,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:09,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:35:09,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:09,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:09,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:09,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:35:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:09,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:09,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:09,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:09,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:09,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-15 21:35:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:09,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-15 21:35:09,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:09,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-15 21:35:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:09,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:09,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:09,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:09,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-15 21:35:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:09,276 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-10-15 21:35:09,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:35:09,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709001449] [2022-10-15 21:35:09,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709001449] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:35:09,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:35:09,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 21:35:09,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124983751] [2022-10-15 21:35:09,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:35:09,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:35:09,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:35:09,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:35:09,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:35:09,280 INFO L87 Difference]: Start difference. First operand 2045 states and 2780 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-15 21:35:14,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:35:15,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:35:15,793 INFO L93 Difference]: Finished difference Result 5374 states and 7378 transitions. [2022-10-15 21:35:15,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:35:15,794 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 109 [2022-10-15 21:35:15,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:35:15,827 INFO L225 Difference]: With dead ends: 5374 [2022-10-15 21:35:15,827 INFO L226 Difference]: Without dead ends: 3357 [2022-10-15 21:35:15,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:35:15,841 INFO L413 NwaCegarLoop]: 1182 mSDtfsCounter, 2195 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 941 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2277 SdHoareTripleChecker+Valid, 2342 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 941 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:35:15,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2277 Valid, 2342 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [941 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-10-15 21:35:15,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3357 states. [2022-10-15 21:35:16,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3357 to 2936. [2022-10-15 21:35:16,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2227 states have (on average 1.3488998652896274) internal successors, (3004), 2307 states have internal predecessors, (3004), 468 states have call successors, (468), 197 states have call predecessors, (468), 215 states have return successors, (527), 459 states have call predecessors, (527), 468 states have call successors, (527) [2022-10-15 21:35:16,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 3999 transitions. [2022-10-15 21:35:16,149 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 3999 transitions. Word has length 109 [2022-10-15 21:35:16,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:35:16,151 INFO L495 AbstractCegarLoop]: Abstraction has 2936 states and 3999 transitions. [2022-10-15 21:35:16,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-15 21:35:16,152 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 3999 transitions. [2022-10-15 21:35:16,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-10-15 21:35:16,165 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:35:16,166 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-10-15 21:35:16,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:35:16,166 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-10-15 21:35:16,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:35:16,167 INFO L85 PathProgramCache]: Analyzing trace with hash 348297345, now seen corresponding path program 1 times [2022-10-15 21:35:16,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:35:16,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739139278] [2022-10-15 21:35:16,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:35:16,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:35:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:16,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:35:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:16,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:16,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:16,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:16,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:35:16,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:16,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:16,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:16,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:16,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:35:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:16,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:16,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:16,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-15 21:35:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:16,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-15 21:35:16,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:16,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-15 21:35:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:16,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:16,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:16,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-15 21:35:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:16,898 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-15 21:35:16,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:35:16,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739139278] [2022-10-15 21:35:16,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739139278] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:35:16,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:35:16,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:35:16,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680094788] [2022-10-15 21:35:16,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:35:16,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:35:16,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:35:16,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:35:16,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:35:16,911 INFO L87 Difference]: Start difference. First operand 2936 states and 3999 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 21:35:22,660 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 [] [2022-10-15 21:35:24,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:35:26,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:35:28,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:35:28,989 INFO L93 Difference]: Finished difference Result 4711 states and 6572 transitions. [2022-10-15 21:35:28,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 21:35:28,990 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 114 [2022-10-15 21:35:28,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:35:29,037 INFO L225 Difference]: With dead ends: 4711 [2022-10-15 21:35:29,038 INFO L226 Difference]: Without dead ends: 4705 [2022-10-15 21:35:29,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-10-15 21:35:29,045 INFO L413 NwaCegarLoop]: 1163 mSDtfsCounter, 1670 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 772 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1770 SdHoareTripleChecker+Valid, 3021 SdHoareTripleChecker+Invalid, 2189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 772 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:35:29,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1770 Valid, 3021 Invalid, 2189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [772 Valid, 1415 Invalid, 2 Unknown, 0 Unchecked, 11.5s Time] [2022-10-15 21:35:29,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4705 states. [2022-10-15 21:35:29,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4705 to 4059. [2022-10-15 21:35:29,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4059 states, 3090 states have (on average 1.3469255663430422) internal successors, (4162), 3191 states have internal predecessors, (4162), 649 states have call successors, (649), 270 states have call predecessors, (649), 294 states have return successors, (727), 635 states have call predecessors, (727), 649 states have call successors, (727) [2022-10-15 21:35:29,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4059 states to 4059 states and 5538 transitions. [2022-10-15 21:35:29,380 INFO L78 Accepts]: Start accepts. Automaton has 4059 states and 5538 transitions. Word has length 114 [2022-10-15 21:35:29,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:35:29,381 INFO L495 AbstractCegarLoop]: Abstraction has 4059 states and 5538 transitions. [2022-10-15 21:35:29,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-15 21:35:29,381 INFO L276 IsEmpty]: Start isEmpty. Operand 4059 states and 5538 transitions. [2022-10-15 21:35:29,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-10-15 21:35:29,383 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:35:29,383 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-10-15 21:35:29,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:35:29,384 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-10-15 21:35:29,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:35:29,385 INFO L85 PathProgramCache]: Analyzing trace with hash 2105347151, now seen corresponding path program 1 times [2022-10-15 21:35:29,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:35:29,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046229411] [2022-10-15 21:35:29,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:35:29,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:35:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:30,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:35:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:30,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:30,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:30,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:30,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:35:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:30,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:30,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:30,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:35:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:30,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:30,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:30,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-10-15 21:35:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:30,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-15 21:35:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:30,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-15 21:35:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:30,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:30,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:30,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-15 21:35:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:30,531 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-15 21:35:30,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:35:30,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046229411] [2022-10-15 21:35:30,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046229411] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:35:30,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:35:30,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-15 21:35:30,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023506457] [2022-10-15 21:35:30,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:35:30,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-15 21:35:30,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:35:30,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-15 21:35:30,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-10-15 21:35:30,534 INFO L87 Difference]: Start difference. First operand 4059 states and 5538 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2022-10-15 21:35:35,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:35:37,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:35:39,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []