/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-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:10:23,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:10:23,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:10:23,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:10:23,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:10:23,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:10:24,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:10:24,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:10:24,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:10:24,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:10:24,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:10:24,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:10:24,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:10:24,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:10:24,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:10:24,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:10:24,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:10:24,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:10:24,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:10:24,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:10:24,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:10:24,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:10:24,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:10:24,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:10:24,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:10:24,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:10:24,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:10:24,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:10:24,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:10:24,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:10:24,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:10:24,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:10:24,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:10:24,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:10:24,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:10:24,079 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:10:24,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:10:24,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:10:24,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:10:24,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:10:24,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:10:24,084 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 21:10:24,139 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:10:24,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:10:24,140 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:10:24,140 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:10:24,141 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:10:24,142 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:10:24,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:10:24,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:10:24,144 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:10:24,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:10:24,146 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:10:24,146 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:10:24,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:10:24,146 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:10:24,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:10:24,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:10:24,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:10:24,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:10:24,147 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:10:24,147 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:10:24,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:10:24,148 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:10:24,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:10:24,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:10:24,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:10:24,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:10:24,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:10:24,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:10:24,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:10:24,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:10:24,150 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:10:24,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:10:24,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:10:24,150 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:10:24,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:10:24,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:10:24,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:10:24,609 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:10:24,610 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:10:24,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2022-10-15 21:10:24,705 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/045d928f7/e1ac5561cc3e4a68ab87a7b3b58b0dd9/FLAG41ef3dd5c [2022-10-15 21:10:25,948 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:10:25,949 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2022-10-15 21:10:26,015 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/045d928f7/e1ac5561cc3e4a68ab87a7b3b58b0dd9/FLAG41ef3dd5c [2022-10-15 21:10:26,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/045d928f7/e1ac5561cc3e4a68ab87a7b3b58b0dd9 [2022-10-15 21:10:26,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:10:26,329 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:10:26,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:10:26,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:10:26,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:10:26,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:10:26" (1/1) ... [2022-10-15 21:10:26,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d1cc81f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:10:26, skipping insertion in model container [2022-10-15 21:10:26,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:10:26" (1/1) ... [2022-10-15 21:10:26,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:10:26,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:10:28,500 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-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2022-10-15 21:10:28,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:10:28,615 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:10:29,048 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-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2022-10-15 21:10:29,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:10:29,191 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:10:29,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:10:29 WrapperNode [2022-10-15 21:10:29,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:10:29,193 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:10:29,193 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:10:29,193 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:10:29,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:10:29" (1/1) ... [2022-10-15 21:10:29,316 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:10:29" (1/1) ... [2022-10-15 21:10:29,505 INFO L138 Inliner]: procedures = 177, calls = 1597, calls flagged for inlining = 87, calls inlined = 82, statements flattened = 3830 [2022-10-15 21:10:29,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:10:29,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:10:29,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:10:29,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:10:29,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:10:29" (1/1) ... [2022-10-15 21:10:29,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:10:29" (1/1) ... [2022-10-15 21:10:29,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:10:29" (1/1) ... [2022-10-15 21:10:29,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:10:29" (1/1) ... [2022-10-15 21:10:29,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:10:29" (1/1) ... [2022-10-15 21:10:29,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:10:29" (1/1) ... [2022-10-15 21:10:29,768 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:10:29" (1/1) ... [2022-10-15 21:10:29,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:10:29" (1/1) ... [2022-10-15 21:10:29,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:10:29,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:10:29,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:10:29,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:10:29,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:10:29" (1/1) ... [2022-10-15 21:10:29,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:10:29,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:10:29,883 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 21:10:29,889 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 21:10:29,947 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-10-15 21:10:29,947 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-10-15 21:10:29,947 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-10-15 21:10:29,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-10-15 21:10:29,947 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-15 21:10:29,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-15 21:10:29,948 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2022-10-15 21:10:29,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2022-10-15 21:10:29,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:10:29,948 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-10-15 21:10:29,948 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-10-15 21:10:29,949 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-10-15 21:10:29,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-10-15 21:10:29,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:10:29,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:10:29,949 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-10-15 21:10:29,949 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-10-15 21:10:29,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:10:29,950 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2022-10-15 21:10:29,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2022-10-15 21:10:29,950 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-10-15 21:10:29,950 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-10-15 21:10:29,950 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2022-10-15 21:10:29,950 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2022-10-15 21:10:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:10:29,951 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:10:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-15 21:10:29,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-15 21:10:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:10:29,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:10:29,951 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-15 21:10:29,952 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-15 21:10:29,952 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-10-15 21:10:29,952 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-10-15 21:10:29,952 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:10:29,952 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:10:29,952 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2022-10-15 21:10:29,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2022-10-15 21:10:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-10-15 21:10:29,953 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-10-15 21:10:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2022-10-15 21:10:29,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2022-10-15 21:10:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:10:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-15 21:10:29,953 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-15 21:10:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2022-10-15 21:10:29,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2022-10-15 21:10:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-10-15 21:10:29,954 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-10-15 21:10:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2022-10-15 21:10:29,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2022-10-15 21:10:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2022-10-15 21:10:29,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2022-10-15 21:10:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit [2022-10-15 21:10:29,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit [2022-10-15 21:10:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2022-10-15 21:10:29,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2022-10-15 21:10:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2022-10-15 21:10:29,956 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2022-10-15 21:10:29,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:10:29,956 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-15 21:10:29,956 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-15 21:10:29,956 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init [2022-10-15 21:10:29,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init [2022-10-15 21:10:29,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:10:29,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:10:29,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:10:29,957 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-10-15 21:10:29,957 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-10-15 21:10:29,957 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-15 21:10:29,957 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-15 21:10:29,958 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:10:29,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-15 21:10:29,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:10:29,958 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-10-15 21:10:29,958 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-10-15 21:10:29,958 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-15 21:10:29,958 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-15 21:10:29,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-10-15 21:10:29,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-10-15 21:10:29,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:10:29,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:10:29,959 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2022-10-15 21:10:29,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2022-10-15 21:10:29,960 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-10-15 21:10:29,960 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-10-15 21:10:29,960 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2022-10-15 21:10:29,960 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2022-10-15 21:10:29,960 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-10-15 21:10:29,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-10-15 21:10:29,960 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-15 21:10:29,961 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-15 21:10:29,961 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-15 21:10:29,961 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-15 21:10:29,961 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-10-15 21:10:29,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-10-15 21:10:29,961 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2022-10-15 21:10:29,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2022-10-15 21:10:29,962 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-15 21:10:29,962 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-15 21:10:29,962 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-15 21:10:29,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-10-15 21:10:29,962 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2022-10-15 21:10:29,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2022-10-15 21:10:29,962 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-10-15 21:10:29,963 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-10-15 21:10:29,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2022-10-15 21:10:29,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2022-10-15 21:10:29,963 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2022-10-15 21:10:29,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2022-10-15 21:10:29,963 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-10-15 21:10:29,963 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-10-15 21:10:29,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:10:29,964 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-10-15 21:10:29,964 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-10-15 21:10:29,964 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2022-10-15 21:10:29,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2022-10-15 21:10:29,964 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-10-15 21:10:29,964 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-10-15 21:10:29,964 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2022-10-15 21:10:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2022-10-15 21:10:29,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:10:29,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:10:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:10:30,709 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:10:30,713 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:10:30,905 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-15 21:10:31,086 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2022-10-15 21:10:31,086 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2022-10-15 21:10:31,496 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-15 21:10:32,932 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##239: assume false; [2022-10-15 21:10:32,932 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##240: assume !false; [2022-10-15 21:10:33,244 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2022-10-15 21:10:33,267 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-15 21:10:33,269 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-15 21:10:36,024 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume !false; [2022-10-15 21:10:36,025 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##77: assume false; [2022-10-15 21:10:36,025 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2022-10-15 21:10:36,025 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2022-10-15 21:10:36,025 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8653: ttusb_dec_start_feed_#res#1 := 0; [2022-10-15 21:10:36,691 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-15 21:10:37,915 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2022-10-15 21:10:37,916 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2022-10-15 21:10:37,985 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:10:38,003 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:10:38,004 INFO L300 CfgBuilder]: Removed 38 assume(true) statements. [2022-10-15 21:10:38,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:10:38 BoogieIcfgContainer [2022-10-15 21:10:38,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:10:38,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:10:38,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:10:38,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:10:38,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:10:26" (1/3) ... [2022-10-15 21:10:38,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7062366c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:10:38, skipping insertion in model container [2022-10-15 21:10:38,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:10:29" (2/3) ... [2022-10-15 21:10:38,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7062366c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:10:38, skipping insertion in model container [2022-10-15 21:10:38,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:10:38" (3/3) ... [2022-10-15 21:10:38,019 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2022-10-15 21:10:38,042 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:10:38,043 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 96 error locations. [2022-10-15 21:10:38,165 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:10:38,180 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;@17b3fc18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:10:38,181 INFO L358 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2022-10-15 21:10:38,195 INFO L276 IsEmpty]: Start isEmpty. Operand has 1202 states, 853 states have (on average 1.4900351699882766) internal successors, (1271), 972 states have internal predecessors, (1271), 199 states have call successors, (199), 54 states have call predecessors, (199), 53 states have return successors, (197), 191 states have call predecessors, (197), 197 states have call successors, (197) [2022-10-15 21:10:38,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-15 21:10:38,209 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:10:38,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:10:38,211 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ttusb_dec_free_iso_urbsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ttusb_dec_free_iso_urbsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-10-15 21:10:38,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:10:38,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1451710104, now seen corresponding path program 1 times [2022-10-15 21:10:38,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:10:38,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483777526] [2022-10-15 21:10:38,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:10:38,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:10:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:39,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:10:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:39,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:10:40,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:40,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:10:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:40,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:10:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:40,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:10:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:40,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:10:40,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:10:40,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483777526] [2022-10-15 21:10:40,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483777526] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:10:40,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:10:40,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 21:10:40,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642506930] [2022-10-15 21:10:40,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:10:40,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:10:40,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:10:40,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:10:40,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:10:40,225 INFO L87 Difference]: Start difference. First operand has 1202 states, 853 states have (on average 1.4900351699882766) internal successors, (1271), 972 states have internal predecessors, (1271), 199 states have call successors, (199), 54 states have call predecessors, (199), 53 states have return successors, (197), 191 states have call predecessors, (197), 197 states have call successors, (197) Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 21:10:43,690 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 21:10:48,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:10:48,777 INFO L93 Difference]: Finished difference Result 2196 states and 3124 transitions. [2022-10-15 21:10:48,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:10:48,780 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2022-10-15 21:10:48,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:10:48,807 INFO L225 Difference]: With dead ends: 2196 [2022-10-15 21:10:48,807 INFO L226 Difference]: Without dead ends: 965 [2022-10-15 21:10:48,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:10:48,832 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 940 mSDsluCounter, 2050 mSDsCounter, 0 mSdLazyCounter, 1912 mSolverCounterSat, 360 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 2273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 1912 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:10:48,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 2916 Invalid, 2273 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [360 Valid, 1912 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-10-15 21:10:48,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2022-10-15 21:10:48,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 734. [2022-10-15 21:10:48,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 523 states have (on average 1.3518164435946463) internal successors, (707), 587 states have internal predecessors, (707), 113 states have call successors, (113), 43 states have call predecessors, (113), 43 states have return successors, (113), 109 states have call predecessors, (113), 113 states have call successors, (113) [2022-10-15 21:10:48,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 933 transitions. [2022-10-15 21:10:48,998 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 933 transitions. Word has length 47 [2022-10-15 21:10:48,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:10:48,998 INFO L495 AbstractCegarLoop]: Abstraction has 734 states and 933 transitions. [2022-10-15 21:10:48,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 21:10:48,999 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 933 transitions. [2022-10-15 21:10:49,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-15 21:10:49,002 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:10:49,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:10:49,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:10:49,003 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ttusb_dec_free_iso_urbsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ttusb_dec_free_iso_urbsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-10-15 21:10:49,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:10:49,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1381677193, now seen corresponding path program 1 times [2022-10-15 21:10:49,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:10:49,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622253680] [2022-10-15 21:10:49,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:10:49,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:10:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:49,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:10:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:49,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:10:49,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:50,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:10:50,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:50,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:10:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:50,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:10:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:10:50,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:10:50,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:10:50,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622253680] [2022-10-15 21:10:50,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622253680] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:10:50,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:10:50,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 21:10:50,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91701047] [2022-10-15 21:10:50,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:10:50,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:10:50,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:10:50,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:10:50,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:10:50,140 INFO L87 Difference]: Start difference. First operand 734 states and 933 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-15 21:10:53,853 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 21:11:03,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:11:03,151 INFO L93 Difference]: Finished difference Result 2606 states and 3448 transitions. [2022-10-15 21:11:03,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-15 21:11:03,152 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 47 [2022-10-15 21:11:03,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:11:03,171 INFO L225 Difference]: With dead ends: 2606 [2022-10-15 21:11:03,171 INFO L226 Difference]: Without dead ends: 1884 [2022-10-15 21:11:03,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2022-10-15 21:11:03,178 INFO L413 NwaCegarLoop]: 1156 mSDtfsCounter, 1702 mSDsluCounter, 2320 mSDsCounter, 0 mSdLazyCounter, 3802 mSolverCounterSat, 563 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1795 SdHoareTripleChecker+Valid, 3476 SdHoareTripleChecker+Invalid, 4366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 563 IncrementalHoareTripleChecker+Valid, 3802 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:11:03,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1795 Valid, 3476 Invalid, 4366 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [563 Valid, 3802 Invalid, 1 Unknown, 0 Unchecked, 12.3s Time] [2022-10-15 21:11:03,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2022-10-15 21:11:03,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1415. [2022-10-15 21:11:03,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1036 states have (on average 1.333976833976834) internal successors, (1382), 1126 states have internal predecessors, (1382), 217 states have call successors, (217), 88 states have call predecessors, (217), 107 states have return successors, (286), 214 states have call predecessors, (286), 217 states have call successors, (286) [2022-10-15 21:11:03,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1885 transitions. [2022-10-15 21:11:03,472 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1885 transitions. Word has length 47 [2022-10-15 21:11:03,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:11:03,473 INFO L495 AbstractCegarLoop]: Abstraction has 1415 states and 1885 transitions. [2022-10-15 21:11:03,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-10-15 21:11:03,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1885 transitions. [2022-10-15 21:11:03,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-15 21:11:03,485 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:11:03,486 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:11:03,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:11:03,486 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ttusb_dec_free_iso_urbsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ttusb_dec_free_iso_urbsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-10-15 21:11:03,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:11:03,487 INFO L85 PathProgramCache]: Analyzing trace with hash 541550841, now seen corresponding path program 1 times [2022-10-15 21:11:03,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:11:03,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794960704] [2022-10-15 21:11:03,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:11:03,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:11:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:11:03,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:11:03,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:11:03,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:11:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:11:04,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-15 21:11:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:11:04,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:11:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:11:04,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:11:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:11:04,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:11:04,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:11:04,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794960704] [2022-10-15 21:11:04,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794960704] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:11:04,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:11:04,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:11:04,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649385758] [2022-10-15 21:11:04,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:11:04,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:11:04,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:11:04,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:11:04,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:11:04,117 INFO L87 Difference]: Start difference. First operand 1415 states and 1885 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 21:11:07,376 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 21:11:12,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:11:12,033 INFO L93 Difference]: Finished difference Result 3192 states and 4317 transitions. [2022-10-15 21:11:12,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:11:12,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 47 [2022-10-15 21:11:12,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:11:12,053 INFO L225 Difference]: With dead ends: 3192 [2022-10-15 21:11:12,053 INFO L226 Difference]: Without dead ends: 1787 [2022-10-15 21:11:12,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:11:12,069 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 550 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 174 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 1999 SdHoareTripleChecker+Invalid, 1374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:11:12,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 1999 Invalid, 1374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1199 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-10-15 21:11:12,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1787 states. [2022-10-15 21:11:12,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1787 to 1429. [2022-10-15 21:11:12,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1429 states, 1052 states have (on average 1.3288973384030418) internal successors, (1398), 1140 states have internal predecessors, (1398), 217 states have call successors, (217), 88 states have call predecessors, (217), 107 states have return successors, (286), 214 states have call predecessors, (286), 217 states have call successors, (286) [2022-10-15 21:11:12,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 1901 transitions. [2022-10-15 21:11:12,231 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 1901 transitions. Word has length 47 [2022-10-15 21:11:12,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:11:12,232 INFO L495 AbstractCegarLoop]: Abstraction has 1429 states and 1901 transitions. [2022-10-15 21:11:12,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 21:11:12,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 1901 transitions. [2022-10-15 21:11:12,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-15 21:11:12,237 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:11:12,237 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 21:11:12,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:11:12,238 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ttusb_dec_free_iso_urbsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ttusb_dec_free_iso_urbsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 94 more)] === [2022-10-15 21:11:12,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:11:12,238 INFO L85 PathProgramCache]: Analyzing trace with hash 747714644, now seen corresponding path program 1 times [2022-10-15 21:11:12,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:11:12,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861655485] [2022-10-15 21:11:12,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:11:12,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:11:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:11:13,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:11:13,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:11:13,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-15 21:11:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:11:14,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:11:14,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:11:14,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:11:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:11:14,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-15 21:11:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:11:14,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-15 21:11:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:11:14,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-15 21:11:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:11:14,757 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 21:11:14,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:11:14,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861655485] [2022-10-15 21:11:14,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861655485] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:11:14,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:11:14,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-10-15 21:11:14,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41939557] [2022-10-15 21:11:14,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:11:14,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-15 21:11:14,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:11:14,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-15 21:11:14,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-10-15 21:11:14,760 INFO L87 Difference]: Start difference. First operand 1429 states and 1901 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (7), 5 states have call predecessors, (7), 2 states have call successors, (7)