/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-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:19:54,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:19:54,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:19:54,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:19:54,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:19:54,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:19:54,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:19:54,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:19:54,597 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:19:54,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:19:54,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:19:54,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:19:54,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:19:54,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:19:54,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:19:54,620 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:19:54,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:19:54,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:19:54,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:19:54,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:19:54,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:19:54,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:19:54,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:19:54,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:19:54,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:19:54,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:19:54,658 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:19:54,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:19:54,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:19:54,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:19:54,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:19:54,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:19:54,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:19:54,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:19:54,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:19:54,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:19:54,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:19:54,670 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:19:54,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:19:54,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:19:54,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:19:54,679 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 21:19:54,741 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:19:54,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:19:54,742 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:19:54,742 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:19:54,744 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:19:54,744 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:19:54,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:19:54,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:19:54,747 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:19:54,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:19:54,747 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:19:54,747 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:19:54,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:19:54,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:19:54,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:19:54,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:19:54,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:19:54,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:19:54,752 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:19:54,752 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:19:54,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:19:54,752 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:19:54,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:19:54,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:19:54,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:19:54,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:19:54,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:19:54,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:19:54,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:19:54,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:19:54,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:19:54,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:19:54,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:19:54,755 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:19:55,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:19:55,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:19:55,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:19:55,227 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:19:55,228 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:19:55,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i [2022-10-15 21:19:55,325 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2517ee7d6/8a5c4d09b47d44299528fd9ada36706c/FLAG998250e6a [2022-10-15 21:19:56,436 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:19:56,436 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i [2022-10-15 21:19:56,498 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2517ee7d6/8a5c4d09b47d44299528fd9ada36706c/FLAG998250e6a [2022-10-15 21:19:56,874 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2517ee7d6/8a5c4d09b47d44299528fd9ada36706c [2022-10-15 21:19:56,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:19:56,884 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:19:56,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:19:56,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:19:56,891 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:19:56,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:19:56" (1/1) ... [2022-10-15 21:19:56,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66c85a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:56, skipping insertion in model container [2022-10-15 21:19:56,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:19:56" (1/1) ... [2022-10-15 21:19:56,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:19:57,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:19:57,754 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3528] [2022-10-15 21:19:57,755 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3529-3530] [2022-10-15 21:19:58,314 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i[105797,105810] [2022-10-15 21:19:59,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:19:59,817 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:19:59,935 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3528] [2022-10-15 21:19:59,936 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3529-3530] [2022-10-15 21:19:59,951 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i[105797,105810] [2022-10-15 21:20:00,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:20:00,555 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:20:00,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:00 WrapperNode [2022-10-15 21:20:00,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:20:00,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:20:00,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:20:00,559 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:20:00,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:00" (1/1) ... [2022-10-15 21:20:00,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:00" (1/1) ... [2022-10-15 21:20:00,951 INFO L138 Inliner]: procedures = 189, calls = 1686, calls flagged for inlining = 77, calls inlined = 68, statements flattened = 4608 [2022-10-15 21:20:00,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:20:00,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:20:00,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:20:00,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:20:00,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:00" (1/1) ... [2022-10-15 21:20:00,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:00" (1/1) ... [2022-10-15 21:20:01,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:00" (1/1) ... [2022-10-15 21:20:01,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:00" (1/1) ... [2022-10-15 21:20:01,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:00" (1/1) ... [2022-10-15 21:20:01,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:00" (1/1) ... [2022-10-15 21:20:01,197 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:00" (1/1) ... [2022-10-15 21:20:01,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:00" (1/1) ... [2022-10-15 21:20:01,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:20:01,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:20:01,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:20:01,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:20:01,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:00" (1/1) ... [2022-10-15 21:20:01,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:20:01,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:20:01,424 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 21:20:01,454 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 21:20:01,524 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-10-15 21:20:01,525 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-10-15 21:20:01,525 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-15 21:20:01,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-15 21:20:01,526 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-10-15 21:20:01,526 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-10-15 21:20:01,526 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-10-15 21:20:01,526 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-10-15 21:20:01,526 INFO L130 BoogieDeclarations]: Found specification of procedure free_sglist [2022-10-15 21:20:01,526 INFO L138 BoogieDeclarations]: Found implementation of procedure free_sglist [2022-10-15 21:20:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-10-15 21:20:01,527 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-10-15 21:20:01,527 INFO L130 BoogieDeclarations]: Found specification of procedure test_iso_queue [2022-10-15 21:20:01,528 INFO L138 BoogieDeclarations]: Found implementation of procedure test_iso_queue [2022-10-15 21:20:01,528 INFO L130 BoogieDeclarations]: Found specification of procedure simple_check_buf [2022-10-15 21:20:01,529 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_check_buf [2022-10-15 21:20:01,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:20:01,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:20:01,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:20:01,529 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-10-15 21:20:01,530 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-10-15 21:20:01,530 INFO L130 BoogieDeclarations]: Found specification of procedure perform_sglist [2022-10-15 21:20:01,530 INFO L138 BoogieDeclarations]: Found implementation of procedure perform_sglist [2022-10-15 21:20:01,530 INFO L130 BoogieDeclarations]: Found specification of procedure test_unaligned_bulk [2022-10-15 21:20:01,531 INFO L138 BoogieDeclarations]: Found implementation of procedure test_unaligned_bulk [2022-10-15 21:20:01,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-15 21:20:01,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-15 21:20:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_sglist [2022-10-15 21:20:01,532 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_sglist [2022-10-15 21:20:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-15 21:20:01,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-15 21:20:01,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:20:01,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:20:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-10-15 21:20:01,533 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-10-15 21:20:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-15 21:20:01,533 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-15 21:20:01,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-10-15 21:20:01,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-10-15 21:20:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:20:01,534 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:20:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure set_altsetting [2022-10-15 21:20:01,534 INFO L138 BoogieDeclarations]: Found implementation of procedure set_altsetting [2022-10-15 21:20:01,534 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-10-15 21:20:01,534 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-10-15 21:20:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:20:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-15 21:20:01,536 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-15 21:20:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-10-15 21:20:01,536 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-10-15 21:20:01,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:20:01,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:20:01,538 INFO L130 BoogieDeclarations]: Found specification of procedure verify_not_halted [2022-10-15 21:20:01,538 INFO L138 BoogieDeclarations]: Found implementation of procedure verify_not_halted [2022-10-15 21:20:01,538 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-10-15 21:20:01,539 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-10-15 21:20:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-10-15 21:20:01,539 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-10-15 21:20:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:20:01,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:20:01,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-15 21:20:01,540 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-15 21:20:01,540 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-10-15 21:20:01,541 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-10-15 21:20:01,541 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:20:01,542 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:20:01,542 INFO L130 BoogieDeclarations]: Found specification of procedure test_halt [2022-10-15 21:20:01,543 INFO L138 BoogieDeclarations]: Found implementation of procedure test_halt [2022-10-15 21:20:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_alloc_urb [2022-10-15 21:20:01,544 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_alloc_urb [2022-10-15 21:20:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure unlink1 [2022-10-15 21:20:01,544 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink1 [2022-10-15 21:20:01,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:20:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure ctrl_out [2022-10-15 21:20:01,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ctrl_out [2022-10-15 21:20:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-15 21:20:01,545 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-15 21:20:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-10-15 21:20:01,545 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-10-15 21:20:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_status [2022-10-15 21:20:01,546 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_status [2022-10-15 21:20:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:20:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure is_good_config [2022-10-15 21:20:01,547 INFO L138 BoogieDeclarations]: Found implementation of procedure is_good_config [2022-10-15 21:20:01,547 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-10-15 21:20:01,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-10-15 21:20:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-10-15 21:20:01,548 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-10-15 21:20:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:20:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:20:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-10-15 21:20:01,550 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-10-15 21:20:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-10-15 21:20:01,550 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-10-15 21:20:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-10-15 21:20:01,550 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-10-15 21:20:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure testdev_to_usbdev [2022-10-15 21:20:01,551 INFO L138 BoogieDeclarations]: Found implementation of procedure testdev_to_usbdev [2022-10-15 21:20:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-10-15 21:20:01,551 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-10-15 21:20:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:20:01,551 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_simple [2022-10-15 21:20:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_simple [2022-10-15 21:20:01,552 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-10-15 21:20:01,552 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-10-15 21:20:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-10-15 21:20:01,553 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-10-15 21:20:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-10-15 21:20:01,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-10-15 21:20:01,553 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-10-15 21:20:01,553 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-10-15 21:20:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure simple_io [2022-10-15 21:20:01,554 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_io [2022-10-15 21:20:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:20:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:20:01,554 INFO L130 BoogieDeclarations]: Found specification of procedure simple_alloc_urb [2022-10-15 21:20:01,555 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_alloc_urb [2022-10-15 21:20:01,556 INFO L130 BoogieDeclarations]: Found specification of procedure simple_free_urb [2022-10-15 21:20:01,558 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_free_urb [2022-10-15 21:20:01,559 INFO L130 BoogieDeclarations]: Found specification of procedure simple_fill_buf [2022-10-15 21:20:01,564 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_fill_buf [2022-10-15 21:20:01,570 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2022-10-15 21:20:01,570 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2022-10-15 21:20:01,570 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-15 21:20:01,570 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-15 21:20:01,571 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-15 21:20:01,571 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-15 21:20:01,571 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_ioctl [2022-10-15 21:20:01,571 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_ioctl [2022-10-15 21:20:01,571 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_offset [2022-10-15 21:20:01,571 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_offset [2022-10-15 21:20:01,572 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-10-15 21:20:01,572 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-10-15 21:20:01,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:20:01,572 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2022-10-15 21:20:01,573 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2022-10-15 21:20:01,573 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_disconnect [2022-10-15 21:20:01,573 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_disconnect [2022-10-15 21:20:01,573 INFO L130 BoogieDeclarations]: Found specification of procedure check_guard_bytes [2022-10-15 21:20:01,573 INFO L138 BoogieDeclarations]: Found implementation of procedure check_guard_bytes [2022-10-15 21:20:01,573 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-10-15 21:20:01,573 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-10-15 21:20:01,573 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-10-15 21:20:01,574 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-10-15 21:20:01,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:20:01,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:20:01,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:20:01,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:20:01,574 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_descriptor [2022-10-15 21:20:01,574 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_descriptor [2022-10-15 21:20:02,598 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:20:02,608 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:20:05,985 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:20:09,971 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:20:10,015 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:20:10,015 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:20:10,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:20:10 BoogieIcfgContainer [2022-10-15 21:20:10,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:20:10,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:20:10,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:20:10,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:20:10,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:19:56" (1/3) ... [2022-10-15 21:20:10,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b536523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:20:10, skipping insertion in model container [2022-10-15 21:20:10,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:00" (2/3) ... [2022-10-15 21:20:10,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b536523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:20:10, skipping insertion in model container [2022-10-15 21:20:10,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:20:10" (3/3) ... [2022-10-15 21:20:10,035 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i [2022-10-15 21:20:10,058 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:20:10,058 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 82 error locations. [2022-10-15 21:20:10,176 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:20:10,186 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;@4280113a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:20:10,186 INFO L358 AbstractCegarLoop]: Starting to check reachability of 82 error locations. [2022-10-15 21:20:10,200 INFO L276 IsEmpty]: Start isEmpty. Operand has 1500 states, 1093 states have (on average 1.473924977127173) internal successors, (1611), 1189 states have internal predecessors, (1611), 256 states have call successors, (256), 69 states have call predecessors, (256), 68 states have return successors, (253), 250 states have call predecessors, (253), 253 states have call successors, (253) [2022-10-15 21:20:10,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-15 21:20:10,214 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:10,215 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] [2022-10-15 21:20:10,216 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [free_sglistErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, free_sglistErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, free_sglistErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 79 more)] === [2022-10-15 21:20:10,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:10,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1527393701, now seen corresponding path program 1 times [2022-10-15 21:20:10,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:10,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422408719] [2022-10-15 21:20:10,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:10,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:11,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:20:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:11,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:20:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:11,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:20:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:11,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:20:11,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:11,163 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 21:20:11,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:11,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422408719] [2022-10-15 21:20:11,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422408719] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:11,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:20:11,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:20:11,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671979274] [2022-10-15 21:20:11,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:11,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:20:11,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:11,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:20:11,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:20:11,243 INFO L87 Difference]: Start difference. First operand has 1500 states, 1093 states have (on average 1.473924977127173) internal successors, (1611), 1189 states have internal predecessors, (1611), 256 states have call successors, (256), 69 states have call predecessors, (256), 68 states have return successors, (253), 250 states have call predecessors, (253), 253 states have call successors, (253) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 21:20:17,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:20:17,342 INFO L93 Difference]: Finished difference Result 3373 states and 4980 transitions. [2022-10-15 21:20:17,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:20:17,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2022-10-15 21:20:17,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:20:17,422 INFO L225 Difference]: With dead ends: 3373 [2022-10-15 21:20:17,422 INFO L226 Difference]: Without dead ends: 1839 [2022-10-15 21:20:17,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:20:17,454 INFO L413 NwaCegarLoop]: 1905 mSDtfsCounter, 1309 mSDsluCounter, 3252 mSDsCounter, 0 mSdLazyCounter, 2180 mSolverCounterSat, 764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1383 SdHoareTripleChecker+Valid, 5157 SdHoareTripleChecker+Invalid, 2944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 764 IncrementalHoareTripleChecker+Valid, 2180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:20:17,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1383 Valid, 5157 Invalid, 2944 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [764 Valid, 2180 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-10-15 21:20:17,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1839 states. [2022-10-15 21:20:17,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1839 to 1499. [2022-10-15 21:20:17,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 1104 states have (on average 1.4456521739130435) internal successors, (1596), 1184 states have internal predecessors, (1596), 254 states have call successors, (254), 71 states have call predecessors, (254), 71 states have return successors, (254), 250 states have call predecessors, (254), 254 states have call successors, (254) [2022-10-15 21:20:17,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 2104 transitions. [2022-10-15 21:20:17,704 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 2104 transitions. Word has length 37 [2022-10-15 21:20:17,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:20:17,705 INFO L495 AbstractCegarLoop]: Abstraction has 1499 states and 2104 transitions. [2022-10-15 21:20:17,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 21:20:17,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 2104 transitions. [2022-10-15 21:20:17,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-15 21:20:17,710 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:17,711 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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 21:20:17,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:20:17,711 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [free_sglistErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, free_sglistErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, free_sglistErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 79 more)] === [2022-10-15 21:20:17,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:17,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1976047822, now seen corresponding path program 1 times [2022-10-15 21:20:17,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:17,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359740327] [2022-10-15 21:20:17,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:17,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:20:18,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:20:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:20:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-15 21:20:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-15 21:20:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:18,270 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-15 21:20:18,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:18,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359740327] [2022-10-15 21:20:18,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359740327] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:18,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:20:18,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:20:18,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43797196] [2022-10-15 21:20:18,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:18,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:20:18,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:18,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:20:18,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:20:18,283 INFO L87 Difference]: Start difference. First operand 1499 states and 2104 transitions. Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 21:20:27,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:20:27,705 INFO L93 Difference]: Finished difference Result 3641 states and 5286 transitions. [2022-10-15 21:20:27,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:20:27,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2022-10-15 21:20:27,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:20:27,739 INFO L225 Difference]: With dead ends: 3641 [2022-10-15 21:20:27,740 INFO L226 Difference]: Without dead ends: 3635 [2022-10-15 21:20:27,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:20:27,744 INFO L413 NwaCegarLoop]: 2030 mSDtfsCounter, 4413 mSDsluCounter, 3230 mSDsCounter, 0 mSdLazyCounter, 2791 mSolverCounterSat, 1878 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4635 SdHoareTripleChecker+Valid, 5260 SdHoareTripleChecker+Invalid, 4669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1878 IncrementalHoareTripleChecker+Valid, 2791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-10-15 21:20:27,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4635 Valid, 5260 Invalid, 4669 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1878 Valid, 2791 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2022-10-15 21:20:27,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3635 states. [2022-10-15 21:20:27,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3635 to 2904. [2022-10-15 21:20:27,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2904 states, 2191 states have (on average 1.4454586946599726) internal successors, (3167), 2282 states have internal predecessors, (3167), 504 states have call successors, (504), 139 states have call predecessors, (504), 139 states have return successors, (504), 496 states have call predecessors, (504), 504 states have call successors, (504) [2022-10-15 21:20:27,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2904 states to 2904 states and 4175 transitions. [2022-10-15 21:20:27,968 INFO L78 Accepts]: Start accepts. Automaton has 2904 states and 4175 transitions. Word has length 58 [2022-10-15 21:20:27,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:20:27,970 INFO L495 AbstractCegarLoop]: Abstraction has 2904 states and 4175 transitions. [2022-10-15 21:20:27,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 21:20:27,971 INFO L276 IsEmpty]: Start isEmpty. Operand 2904 states and 4175 transitions. [2022-10-15 21:20:27,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-15 21:20:27,984 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:27,985 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 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] [2022-10-15 21:20:27,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:20:27,985 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [free_sglistErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, free_sglistErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, free_sglistErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 79 more)] === [2022-10-15 21:20:27,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:27,987 INFO L85 PathProgramCache]: Analyzing trace with hash 908126903, now seen corresponding path program 1 times [2022-10-15 21:20:27,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:27,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064513456] [2022-10-15 21:20:27,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:27,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:28,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:20:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:28,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:20:28,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:28,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:20:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:28,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-15 21:20:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:28,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-15 21:20:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:28,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-10-15 21:20:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:28,583 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-15 21:20:28,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:28,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064513456] [2022-10-15 21:20:28,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064513456] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:28,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:20:28,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:20:28,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315511125] [2022-10-15 21:20:28,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:28,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:20:28,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:28,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:20:28,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:20:28,587 INFO L87 Difference]: Start difference. First operand 2904 states and 4175 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-15 21:20:41,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:20:41,983 INFO L93 Difference]: Finished difference Result 8576 states and 12603 transitions. [2022-10-15 21:20:41,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 21:20:41,984 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 75 [2022-10-15 21:20:41,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:20:42,051 INFO L225 Difference]: With dead ends: 8576 [2022-10-15 21:20:42,051 INFO L226 Difference]: Without dead ends: 7099 [2022-10-15 21:20:42,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:20:42,068 INFO L413 NwaCegarLoop]: 3718 mSDtfsCounter, 3286 mSDsluCounter, 7783 mSDsCounter, 0 mSdLazyCounter, 5083 mSolverCounterSat, 1292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3501 SdHoareTripleChecker+Valid, 11501 SdHoareTripleChecker+Invalid, 6375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1292 IncrementalHoareTripleChecker+Valid, 5083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:20:42,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3501 Valid, 11501 Invalid, 6375 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1292 Valid, 5083 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2022-10-15 21:20:42,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7099 states. [2022-10-15 21:20:42,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7099 to 2908. [2022-10-15 21:20:42,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 2195 states have (on average 1.4446469248291571) internal successors, (3171), 2286 states have internal predecessors, (3171), 504 states have call successors, (504), 139 states have call predecessors, (504), 139 states have return successors, (504), 496 states have call predecessors, (504), 504 states have call successors, (504) [2022-10-15 21:20:42,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 4179 transitions. [2022-10-15 21:20:42,377 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 4179 transitions. Word has length 75 [2022-10-15 21:20:42,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:20:42,381 INFO L495 AbstractCegarLoop]: Abstraction has 2908 states and 4179 transitions. [2022-10-15 21:20:42,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-15 21:20:42,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 4179 transitions. [2022-10-15 21:20:42,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-10-15 21:20:42,387 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:42,387 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-15 21:20:42,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:20:42,388 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting usbtest_ioctlErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [free_sglistErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, free_sglistErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, free_sglistErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 79 more)] === [2022-10-15 21:20:42,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:42,389 INFO L85 PathProgramCache]: Analyzing trace with hash 631159831, now seen corresponding path program 1 times [2022-10-15 21:20:42,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:42,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682075530] [2022-10-15 21:20:42,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:42,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:42,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:20:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:42,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:20:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:42,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:20:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:42,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-15 21:20:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:42,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-15 21:20:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:42,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-15 21:20:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:42,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:20:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:42,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-15 21:20:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:42,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-15 21:20:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:42,963 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 21:20:42,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:42,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682075530] [2022-10-15 21:20:42,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682075530] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:42,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:20:42,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:20:42,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000399960] [2022-10-15 21:20:42,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:42,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:20:42,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:42,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:20:42,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:20:42,970 INFO L87 Difference]: Start difference. First operand 2908 states and 4179 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9)