/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:06:42,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:06:42,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:06:42,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 14:06:42,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 14:06:42,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 14:06:42,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 14:06:42,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 14:06:42,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 14:06:42,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 14:06:42,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 14:06:42,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 14:06:42,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:06:42,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:06:42,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:06:42,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:06:42,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:06:42,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:06:42,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:06:42,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:06:42,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:06:42,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:06:42,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:06:42,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:06:42,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 14:06:42,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 14:06:42,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 14:06:42,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 14:06:42,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 14:06:42,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 14:06:42,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 14:06:42,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 14:06:42,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 14:06:42,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 14:06:42,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 14:06:42,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 14:06:42,143 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 14:06:42,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 14:06:42,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:06:42,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:06:42,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:06:42,147 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 [2022-10-16 14:06:42,183 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:06:42,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:06:42,184 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:06:42,184 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:06:42,187 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:06:42,187 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:06:42,188 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:06:42,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:06:42,189 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:06:42,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:06:42,190 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:06:42,190 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:06:42,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:06:42,190 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:06:42,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:06:42,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:06:42,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:06:42,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:06:42,193 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:06:42,193 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:06:42,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:06:42,193 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:06:42,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:06:42,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:06:42,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:06:42,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:06:42,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:06:42,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:06:42,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:06:42,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:06:42,196 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:06:42,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:06:42,197 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:06:42,197 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:06:42,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:06:42,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:06:42,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:06:42,640 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:06:42,641 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:06:42,642 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2022-10-16 14:06:42,734 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cea6c497f/457c84152edb4bb2bd101e1fb5b368c6/FLAG9b81aef62 [2022-10-16 14:06:43,817 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:06:43,819 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2022-10-16 14:06:43,885 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cea6c497f/457c84152edb4bb2bd101e1fb5b368c6/FLAG9b81aef62 [2022-10-16 14:06:44,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cea6c497f/457c84152edb4bb2bd101e1fb5b368c6 [2022-10-16 14:06:44,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:06:44,216 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:06:44,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:06:44,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:06:44,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:06:44,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:06:44" (1/1) ... [2022-10-16 14:06:44,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc64cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:44, skipping insertion in model container [2022-10-16 14:06:44,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:06:44" (1/1) ... [2022-10-16 14:06:44,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:06:44,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:06:46,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i[238462,238475] [2022-10-16 14:06:46,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:06:46,269 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:06:46,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i[238462,238475] [2022-10-16 14:06:46,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:06:46,979 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:06:46,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:46 WrapperNode [2022-10-16 14:06:46,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:06:46,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:06:46,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:06:46,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:06:46,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:46" (1/1) ... [2022-10-16 14:06:47,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:46" (1/1) ... [2022-10-16 14:06:47,509 INFO L138 Inliner]: procedures = 258, calls = 1803, calls flagged for inlining = 103, calls inlined = 99, statements flattened = 4876 [2022-10-16 14:06:47,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:06:47,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:06:47,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:06:47,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:06:47,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:46" (1/1) ... [2022-10-16 14:06:47,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:46" (1/1) ... [2022-10-16 14:06:47,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:46" (1/1) ... [2022-10-16 14:06:47,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:46" (1/1) ... [2022-10-16 14:06:47,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:46" (1/1) ... [2022-10-16 14:06:47,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:46" (1/1) ... [2022-10-16 14:06:48,001 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:46" (1/1) ... [2022-10-16 14:06:48,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:46" (1/1) ... [2022-10-16 14:06:48,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:06:48,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:06:48,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:06:48,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:06:48,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:46" (1/1) ... [2022-10-16 14:06:48,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:06:48,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:06:48,111 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) [2022-10-16 14:06:48,137 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 [2022-10-16 14:06:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-10-16 14:06:48,182 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-10-16 14:06:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_12 [2022-10-16 14:06:48,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_12 [2022-10-16 14:06:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-16 14:06:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-16 14:06:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-16 14:06:48,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-16 14:06:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-16 14:06:48,183 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-16 14:06:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_delete [2022-10-16 14:06:48,183 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_delete [2022-10-16 14:06:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_wait [2022-10-16 14:06:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_wait [2022-10-16 14:06:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2022-10-16 14:06:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2022-10-16 14:06:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-10-16 14:06:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-10-16 14:06:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2022-10-16 14:06:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2022-10-16 14:06:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 14:06:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 14:06:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-10-16 14:06:48,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-10-16 14:06:48,185 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-10-16 14:06:48,186 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-10-16 14:06:48,186 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2022-10-16 14:06:48,186 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2022-10-16 14:06:48,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_50 [2022-10-16 14:06:48,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_50 [2022-10-16 14:06:48,186 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-16 14:06:48,187 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-16 14:06:48,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 14:06:48,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 14:06:48,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-16 14:06:48,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-16 14:06:48,187 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 14:06:48,187 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 14:06:48,188 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_detect_change [2022-10-16 14:06:48,188 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_detect_change [2022-10-16 14:06:48,188 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-10-16 14:06:48,188 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-10-16 14:06:48,188 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_cancel [2022-10-16 14:06:48,188 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_cancel [2022-10-16 14:06:48,189 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-10-16 14:06:48,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-10-16 14:06:48,189 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_init [2022-10-16 14:06:48,189 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_init [2022-10-16 14:06:48,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29 [2022-10-16 14:06:48,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29 [2022-10-16 14:06:48,190 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2022-10-16 14:06:48,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2022-10-16 14:06:48,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 14:06:48,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_27 [2022-10-16 14:06:48,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_27 [2022-10-16 14:06:48,190 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-16 14:06:48,191 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-16 14:06:48,191 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-10-16 14:06:48,191 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-10-16 14:06:48,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 14:06:48,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_13 [2022-10-16 14:06:48,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_13 [2022-10-16 14:06:48,192 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-10-16 14:06:48,192 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-10-16 14:06:48,192 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2022-10-16 14:06:48,192 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2022-10-16 14:06:48,192 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_disconnect [2022-10-16 14:06:48,192 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_disconnect [2022-10-16 14:06:48,193 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2022-10-16 14:06:48,193 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2022-10-16 14:06:48,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_15 [2022-10-16 14:06:48,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_15 [2022-10-16 14:06:48,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:06:48,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 14:06:48,194 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-10-16 14:06:48,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-10-16 14:06:48,194 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-16 14:06:48,194 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-16 14:06:48,194 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2022-10-16 14:06:48,194 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2022-10-16 14:06:48,195 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-16 14:06:48,195 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-16 14:06:48,195 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-10-16 14:06:48,195 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-10-16 14:06:48,195 INFO L130 BoogieDeclarations]: Found specification of procedure add_offloaded_reg [2022-10-16 14:06:48,195 INFO L138 BoogieDeclarations]: Found implementation of procedure add_offloaded_reg [2022-10-16 14:06:48,196 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-10-16 14:06:48,196 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-10-16 14:06:48,196 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2022-10-16 14:06:48,196 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2022-10-16 14:06:48,196 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_to_multiple_of_64 [2022-10-16 14:06:48,196 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_to_multiple_of_64 [2022-10-16 14:06:48,197 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-10-16 14:06:48,197 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-10-16 14:06:48,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-16 14:06:48,197 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2022-10-16 14:06:48,197 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2022-10-16 14:06:48,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 14:06:48,198 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2022-10-16 14:06:48,198 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2022-10-16 14:06:48,198 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2022-10-16 14:06:48,198 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2022-10-16 14:06:48,198 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-10-16 14:06:48,198 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-10-16 14:06:48,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:06:48,199 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-10-16 14:06:48,199 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-10-16 14:06:48,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-16 14:06:48,199 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-16 14:06:48,199 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-16 14:06:48,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-16 14:06:48,200 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2022-10-16 14:06:48,200 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2022-10-16 14:06:48,200 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-16 14:06:48,200 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-16 14:06:48,200 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 14:06:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 14:06:48,201 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-10-16 14:06:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-10-16 14:06:48,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:06:48,201 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_response_error [2022-10-16 14:06:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_response_error [2022-10-16 14:06:48,201 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2022-10-16 14:06:48,202 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2022-10-16 14:06:48,202 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_free_host [2022-10-16 14:06:48,202 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_free_host [2022-10-16 14:06:48,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 14:06:48,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 14:06:48,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_32 [2022-10-16 14:06:48,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_32 [2022-10-16 14:06:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-10-16 14:06:48,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-10-16 14:06:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 14:06:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_queue_poll_work [2022-10-16 14:06:48,203 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_queue_poll_work [2022-10-16 14:06:48,204 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2022-10-16 14:06:48,204 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2022-10-16 14:06:48,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-10-16 14:06:48,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-10-16 14:06:48,204 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-10-16 14:06:48,204 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-10-16 14:06:48,204 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2022-10-16 14:06:48,205 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2022-10-16 14:06:48,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:06:48,205 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_to_buffer [2022-10-16 14:06:48,205 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_to_buffer [2022-10-16 14:06:48,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_9 [2022-10-16 14:06:48,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_9 [2022-10-16 14:06:48,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-16 14:06:48,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-16 14:06:48,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 14:06:48,206 INFO L130 BoogieDeclarations]: Found specification of procedure __download_offload_pseudocode [2022-10-16 14:06:48,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __download_offload_pseudocode [2022-10-16 14:06:48,206 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-16 14:06:48,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-16 14:06:48,207 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2022-10-16 14:06:48,207 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2022-10-16 14:06:48,207 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2022-10-16 14:06:48,207 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2022-10-16 14:06:48,207 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_InterfaceNumber [2022-10-16 14:06:48,207 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_InterfaceNumber [2022-10-16 14:06:48,207 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-10-16 14:06:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-10-16 14:06:48,208 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-10-16 14:06:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-10-16 14:06:48,208 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2022-10-16 14:06:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2022-10-16 14:06:48,208 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2022-10-16 14:06:48,209 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2022-10-16 14:06:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure new_system_port_status [2022-10-16 14:06:48,209 INFO L138 BoogieDeclarations]: Found implementation of procedure new_system_port_status [2022-10-16 14:06:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_request_done [2022-10-16 14:06:48,209 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_request_done [2022-10-16 14:06:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-10-16 14:06:48,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-10-16 14:06:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-10-16 14:06:48,210 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-10-16 14:06:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2022-10-16 14:06:48,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2022-10-16 14:06:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-10-16 14:06:48,210 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-10-16 14:06:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-10-16 14:06:48,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-10-16 14:06:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-10-16 14:06:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_47 [2022-10-16 14:06:48,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_47 [2022-10-16 14:06:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-10-16 14:06:48,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-10-16 14:06:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:06:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2022-10-16 14:06:48,212 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2022-10-16 14:06:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_priv [2022-10-16 14:06:48,212 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_priv [2022-10-16 14:06:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-10-16 14:06:48,212 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-10-16 14:06:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_deadwork_thread [2022-10-16 14:06:48,213 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_deadwork_thread [2022-10-16 14:06:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure check_vub300_port_status [2022-10-16 14:06:48,213 INFO L138 BoogieDeclarations]: Found implementation of procedure check_vub300_port_status [2022-10-16 14:06:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-10-16 14:06:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:06:48,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:06:49,001 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:06:49,005 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:06:50,727 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-16 14:06:55,411 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:06:55,433 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:06:55,433 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 14:06:55,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:06:55 BoogieIcfgContainer [2022-10-16 14:06:55,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:06:55,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:06:55,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:06:55,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:06:55,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:06:44" (1/3) ... [2022-10-16 14:06:55,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b948059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:06:55, skipping insertion in model container [2022-10-16 14:06:55,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:06:46" (2/3) ... [2022-10-16 14:06:55,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b948059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:06:55, skipping insertion in model container [2022-10-16 14:06:55,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:06:55" (3/3) ... [2022-10-16 14:06:55,447 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2022-10-16 14:06:55,468 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:06:55,469 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 280 error locations. [2022-10-16 14:06:55,596 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:06:55,605 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;@406470cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:06:55,605 INFO L358 AbstractCegarLoop]: Starting to check reachability of 280 error locations. [2022-10-16 14:06:55,618 INFO L276 IsEmpty]: Start isEmpty. Operand has 2206 states, 1459 states have (on average 1.5407813570939) internal successors, (2248), 1803 states have internal predecessors, (2248), 375 states have call successors, (375), 92 states have call predecessors, (375), 91 states have return successors, (366), 340 states have call predecessors, (366), 366 states have call successors, (366) [2022-10-16 14:06:55,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-10-16 14:06:55,644 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:55,645 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:06:55,646 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:06:55,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:55,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1501365776, now seen corresponding path program 1 times [2022-10-16 14:06:55,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:55,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337137360] [2022-10-16 14:06:55,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:55,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:06:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:06:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:06:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:06:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:06:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:06:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:06:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:06:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:06:56,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:06:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:06:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:06:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:06:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:06:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:06:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 14:06:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,749 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-10-16 14:06:56,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:56,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337137360] [2022-10-16 14:06:56,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337137360] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:06:56,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:06:56,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 14:06:56,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758415762] [2022-10-16 14:06:56,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:06:56,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:06:56,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:56,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:06:56,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:06:56,835 INFO L87 Difference]: Start difference. First operand has 2206 states, 1459 states have (on average 1.5407813570939) internal successors, (2248), 1803 states have internal predecessors, (2248), 375 states have call successors, (375), 92 states have call predecessors, (375), 91 states have return successors, (366), 340 states have call predecessors, (366), 366 states have call successors, (366) Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 14:07:08,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:07:08,273 INFO L93 Difference]: Finished difference Result 6667 states and 9558 transitions. [2022-10-16 14:07:08,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 14:07:08,281 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 110 [2022-10-16 14:07:08,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:07:08,339 INFO L225 Difference]: With dead ends: 6667 [2022-10-16 14:07:08,340 INFO L226 Difference]: Without dead ends: 4412 [2022-10-16 14:07:08,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:07:08,374 INFO L413 NwaCegarLoop]: 3000 mSDtfsCounter, 7561 mSDsluCounter, 4534 mSDsCounter, 0 mSdLazyCounter, 3243 mSolverCounterSat, 4314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7828 SdHoareTripleChecker+Valid, 7534 SdHoareTripleChecker+Invalid, 7557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4314 IncrementalHoareTripleChecker+Valid, 3243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-10-16 14:07:08,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7828 Valid, 7534 Invalid, 7557 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4314 Valid, 3243 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2022-10-16 14:07:08,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4412 states. [2022-10-16 14:07:08,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4412 to 3695. [2022-10-16 14:07:08,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3695 states, 2675 states have (on average 1.4542056074766354) internal successors, (3890), 2970 states have internal predecessors, (3890), 654 states have call successors, (654), 170 states have call predecessors, (654), 170 states have return successors, (653), 601 states have call predecessors, (653), 653 states have call successors, (653) [2022-10-16 14:07:08,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3695 states to 3695 states and 5197 transitions. [2022-10-16 14:07:08,858 INFO L78 Accepts]: Start accepts. Automaton has 3695 states and 5197 transitions. Word has length 110 [2022-10-16 14:07:08,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:07:08,860 INFO L495 AbstractCegarLoop]: Abstraction has 3695 states and 5197 transitions. [2022-10-16 14:07:08,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 14:07:08,860 INFO L276 IsEmpty]: Start isEmpty. Operand 3695 states and 5197 transitions. [2022-10-16 14:07:08,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-10-16 14:07:08,872 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:07:08,874 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:07:08,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:07:08,875 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:07:08,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:07:08,876 INFO L85 PathProgramCache]: Analyzing trace with hash 2019187404, now seen corresponding path program 1 times [2022-10-16 14:07:08,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:07:08,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155926877] [2022-10-16 14:07:08,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:08,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:07:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:09,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:07:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:09,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:09,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:09,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:07:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:09,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:07:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:09,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:09,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:07:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:09,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:07:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:09,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:09,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:07:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:09,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:07:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:09,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:09,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:07:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:09,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:07:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:09,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:09,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:09,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:07:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:09,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:09,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 14:07:09,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:09,465 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-10-16 14:07:09,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:07:09,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155926877] [2022-10-16 14:07:09,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155926877] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:07:09,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:07:09,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:07:09,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237821676] [2022-10-16 14:07:09,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:07:09,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:07:09,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:07:09,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:07:09,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:07:09,470 INFO L87 Difference]: Start difference. First operand 3695 states and 5197 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 14:07:18,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:07:18,630 INFO L93 Difference]: Finished difference Result 7752 states and 11008 transitions. [2022-10-16 14:07:18,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:07:18,631 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 113 [2022-10-16 14:07:18,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:07:18,661 INFO L225 Difference]: With dead ends: 7752 [2022-10-16 14:07:18,662 INFO L226 Difference]: Without dead ends: 4080 [2022-10-16 14:07:18,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:07:18,681 INFO L413 NwaCegarLoop]: 2610 mSDtfsCounter, 4059 mSDsluCounter, 2336 mSDsCounter, 0 mSdLazyCounter, 1753 mSolverCounterSat, 1310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4258 SdHoareTripleChecker+Valid, 4946 SdHoareTripleChecker+Invalid, 3063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1310 IncrementalHoareTripleChecker+Valid, 1753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-10-16 14:07:18,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4258 Valid, 4946 Invalid, 3063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1310 Valid, 1753 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-10-16 14:07:18,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4080 states. [2022-10-16 14:07:18,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4080 to 3687. [2022-10-16 14:07:18,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3687 states, 2671 states have (on average 1.4533882441033321) internal successors, (3882), 2966 states have internal predecessors, (3882), 650 states have call successors, (650), 170 states have call predecessors, (650), 170 states have return successors, (649), 597 states have call predecessors, (649), 649 states have call successors, (649) [2022-10-16 14:07:18,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3687 states to 3687 states and 5181 transitions. [2022-10-16 14:07:18,883 INFO L78 Accepts]: Start accepts. Automaton has 3687 states and 5181 transitions. Word has length 113 [2022-10-16 14:07:18,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:07:18,884 INFO L495 AbstractCegarLoop]: Abstraction has 3687 states and 5181 transitions. [2022-10-16 14:07:18,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 14:07:18,885 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 5181 transitions. [2022-10-16 14:07:18,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-10-16 14:07:18,900 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:07:18,904 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:07:18,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:07:18,904 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:07:18,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:07:18,905 INFO L85 PathProgramCache]: Analyzing trace with hash 381832399, now seen corresponding path program 1 times [2022-10-16 14:07:18,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:07:18,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303928316] [2022-10-16 14:07:18,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:18,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:07:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:19,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:07:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:19,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:19,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:07:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:19,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:07:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:19,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:19,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:07:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:19,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:07:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:19,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:19,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:07:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:19,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:07:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:19,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:19,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:07:19,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:19,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:07:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:19,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:19,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:07:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:19,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:19,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 14:07:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:19,369 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-10-16 14:07:19,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:07:19,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303928316] [2022-10-16 14:07:19,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303928316] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:07:19,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:07:19,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:07:19,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624895321] [2022-10-16 14:07:19,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:07:19,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:07:19,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:07:19,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:07:19,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:07:19,372 INFO L87 Difference]: Start difference. First operand 3687 states and 5181 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 14:07:24,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:07:25,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:07:25,585 INFO L93 Difference]: Finished difference Result 7736 states and 10976 transitions. [2022-10-16 14:07:25,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:07:25,586 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 116 [2022-10-16 14:07:25,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:07:25,616 INFO L225 Difference]: With dead ends: 7736 [2022-10-16 14:07:25,616 INFO L226 Difference]: Without dead ends: 4072 [2022-10-16 14:07:25,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:07:25,633 INFO L413 NwaCegarLoop]: 2614 mSDtfsCounter, 4614 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 1760 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4813 SdHoareTripleChecker+Valid, 3919 SdHoareTripleChecker+Invalid, 2786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1760 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-10-16 14:07:25,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4813 Valid, 3919 Invalid, 2786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1760 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-10-16 14:07:25,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4072 states. [2022-10-16 14:07:25,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4072 to 3679. [2022-10-16 14:07:25,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3679 states, 2667 states have (on average 1.4525684289463816) internal successors, (3874), 2962 states have internal predecessors, (3874), 646 states have call successors, (646), 170 states have call predecessors, (646), 170 states have return successors, (645), 593 states have call predecessors, (645), 645 states have call successors, (645) [2022-10-16 14:07:25,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3679 states to 3679 states and 5165 transitions. [2022-10-16 14:07:25,839 INFO L78 Accepts]: Start accepts. Automaton has 3679 states and 5165 transitions. Word has length 116 [2022-10-16 14:07:25,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:07:25,839 INFO L495 AbstractCegarLoop]: Abstraction has 3679 states and 5165 transitions. [2022-10-16 14:07:25,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 14:07:25,840 INFO L276 IsEmpty]: Start isEmpty. Operand 3679 states and 5165 transitions. [2022-10-16 14:07:25,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-10-16 14:07:25,842 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:07:25,843 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:07:25,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:07:25,843 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:07:25,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:07:25,844 INFO L85 PathProgramCache]: Analyzing trace with hash -394516125, now seen corresponding path program 1 times [2022-10-16 14:07:25,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:07:25,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490904976] [2022-10-16 14:07:25,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:25,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:07:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:26,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:07:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:26,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:26,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:07:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:26,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:07:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:26,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:26,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:07:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:26,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:07:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:26,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:26,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:07:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:26,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:07:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:26,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:26,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:07:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:26,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:07:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:26,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:26,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:26,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:07:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:26,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:26,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-10-16 14:07:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:26,257 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-10-16 14:07:26,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:07:26,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490904976] [2022-10-16 14:07:26,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490904976] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:07:26,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:07:26,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:07:26,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565226440] [2022-10-16 14:07:26,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:07:26,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:07:26,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:07:26,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:07:26,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:07:26,260 INFO L87 Difference]: Start difference. First operand 3679 states and 5165 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 14:07:34,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:07:34,098 INFO L93 Difference]: Finished difference Result 7720 states and 10944 transitions. [2022-10-16 14:07:34,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:07:34,099 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 115 [2022-10-16 14:07:34,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:07:34,127 INFO L225 Difference]: With dead ends: 7720 [2022-10-16 14:07:34,127 INFO L226 Difference]: Without dead ends: 4064 [2022-10-16 14:07:34,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:07:34,145 INFO L413 NwaCegarLoop]: 2586 mSDtfsCounter, 3864 mSDsluCounter, 2402 mSDsCounter, 0 mSdLazyCounter, 1712 mSolverCounterSat, 1252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4064 SdHoareTripleChecker+Valid, 4988 SdHoareTripleChecker+Invalid, 2964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1252 IncrementalHoareTripleChecker+Valid, 1712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:07:34,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4064 Valid, 4988 Invalid, 2964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1252 Valid, 1712 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-10-16 14:07:34,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4064 states. [2022-10-16 14:07:34,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4064 to 3671. [2022-10-16 14:07:34,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3671 states, 2663 states have (on average 1.4517461509575667) internal successors, (3866), 2958 states have internal predecessors, (3866), 642 states have call successors, (642), 170 states have call predecessors, (642), 170 states have return successors, (641), 589 states have call predecessors, (641), 641 states have call successors, (641) [2022-10-16 14:07:34,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3671 states to 3671 states and 5149 transitions. [2022-10-16 14:07:34,370 INFO L78 Accepts]: Start accepts. Automaton has 3671 states and 5149 transitions. Word has length 115 [2022-10-16 14:07:34,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:07:34,371 INFO L495 AbstractCegarLoop]: Abstraction has 3671 states and 5149 transitions. [2022-10-16 14:07:34,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 14:07:34,372 INFO L276 IsEmpty]: Start isEmpty. Operand 3671 states and 5149 transitions. [2022-10-16 14:07:34,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-10-16 14:07:34,374 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:07:34,374 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:07:34,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 14:07:34,375 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:07:34,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:07:34,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1196192168, now seen corresponding path program 1 times [2022-10-16 14:07:34,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:07:34,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437736379] [2022-10-16 14:07:34,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:34,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:07:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:07:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:34,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:07:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:07:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:07:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:07:34,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:34,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:07:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:07:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:07:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:07:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:07:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 14:07:34,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:34,826 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-10-16 14:07:34,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:07:34,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437736379] [2022-10-16 14:07:34,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437736379] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:07:34,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:07:34,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:07:34,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916696079] [2022-10-16 14:07:34,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:07:34,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:07:34,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:07:34,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:07:34,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:07:34,829 INFO L87 Difference]: Start difference. First operand 3671 states and 5149 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 14:07:40,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:07:40,458 INFO L93 Difference]: Finished difference Result 7684 states and 10854 transitions. [2022-10-16 14:07:40,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:07:40,459 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 114 [2022-10-16 14:07:40,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:07:40,485 INFO L225 Difference]: With dead ends: 7684 [2022-10-16 14:07:40,486 INFO L226 Difference]: Without dead ends: 4014 [2022-10-16 14:07:40,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:07:40,506 INFO L413 NwaCegarLoop]: 2566 mSDtfsCounter, 4585 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 1738 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4785 SdHoareTripleChecker+Valid, 3851 SdHoareTripleChecker+Invalid, 2751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1738 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:07:40,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4785 Valid, 3851 Invalid, 2751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1738 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-10-16 14:07:40,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4014 states. [2022-10-16 14:07:40,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4014 to 3641. [2022-10-16 14:07:40,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3641 states, 2650 states have (on average 1.4516981132075473) internal successors, (3847), 2944 states have internal predecessors, (3847), 626 states have call successors, (626), 169 states have call predecessors, (626), 169 states have return successors, (626), 574 states have call predecessors, (626), 626 states have call successors, (626) [2022-10-16 14:07:40,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3641 states to 3641 states and 5099 transitions. [2022-10-16 14:07:40,775 INFO L78 Accepts]: Start accepts. Automaton has 3641 states and 5099 transitions. Word has length 114 [2022-10-16 14:07:40,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:07:40,776 INFO L495 AbstractCegarLoop]: Abstraction has 3641 states and 5099 transitions. [2022-10-16 14:07:40,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 14:07:40,777 INFO L276 IsEmpty]: Start isEmpty. Operand 3641 states and 5099 transitions. [2022-10-16 14:07:40,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 14:07:40,781 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:07:40,781 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:07:40,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:07:40,783 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting vub300_deleteErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:07:40,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:07:40,784 INFO L85 PathProgramCache]: Analyzing trace with hash 39944332, now seen corresponding path program 1 times [2022-10-16 14:07:40,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:07:40,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434293826] [2022-10-16 14:07:40,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:40,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:07:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:41,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:07:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:41,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:41,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:41,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:07:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:41,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:07:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:41,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:41,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:07:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:41,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:07:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:41,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:41,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:07:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:41,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:07:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:41,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:41,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:07:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:41,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:07:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:41,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:41,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:07:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:41,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:41,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 14:07:41,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:41,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 14:07:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:41,508 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-10-16 14:07:41,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:07:41,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434293826] [2022-10-16 14:07:41,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434293826] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:07:41,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:07:41,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:07:41,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901807988] [2022-10-16 14:07:41,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:07:41,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:07:41,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:07:41,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:07:41,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:07:41,511 INFO L87 Difference]: Start difference. First operand 3641 states and 5099 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 14:08:01,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:08:01,284 INFO L93 Difference]: Finished difference Result 9896 states and 15086 transitions. [2022-10-16 14:08:01,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 14:08:01,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 121 [2022-10-16 14:08:01,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:08:01,357 INFO L225 Difference]: With dead ends: 9896 [2022-10-16 14:08:01,357 INFO L226 Difference]: Without dead ends: 9890 [2022-10-16 14:08:01,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:08:01,370 INFO L413 NwaCegarLoop]: 2948 mSDtfsCounter, 8397 mSDsluCounter, 7228 mSDsCounter, 0 mSdLazyCounter, 6955 mSolverCounterSat, 4067 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8656 SdHoareTripleChecker+Valid, 10176 SdHoareTripleChecker+Invalid, 11022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4067 IncrementalHoareTripleChecker+Valid, 6955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2022-10-16 14:08:01,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8656 Valid, 10176 Invalid, 11022 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4067 Valid, 6955 Invalid, 0 Unknown, 0 Unchecked, 18.7s Time] [2022-10-16 14:08:01,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9890 states. [2022-10-16 14:08:02,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9890 to 7265. [2022-10-16 14:08:02,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7265 states, 5411 states have (on average 1.4413232304564776) internal successors, (7799), 5824 states have internal predecessors, (7799), 1265 states have call successors, (1265), 337 states have call predecessors, (1265), 393 states have return successors, (1705), 1201 states have call predecessors, (1705), 1265 states have call successors, (1705) [2022-10-16 14:08:02,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7265 states to 7265 states and 10769 transitions. [2022-10-16 14:08:02,146 INFO L78 Accepts]: Start accepts. Automaton has 7265 states and 10769 transitions. Word has length 121 [2022-10-16 14:08:02,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:08:02,147 INFO L495 AbstractCegarLoop]: Abstraction has 7265 states and 10769 transitions. [2022-10-16 14:08:02,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 14:08:02,147 INFO L276 IsEmpty]: Start isEmpty. Operand 7265 states and 10769 transitions. [2022-10-16 14:08:02,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-10-16 14:08:02,152 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:08:02,152 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:08:02,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 14:08:02,152 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting vub300_pollwork_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:08:02,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:08:02,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1337668378, now seen corresponding path program 1 times [2022-10-16 14:08:02,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:08:02,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024129498] [2022-10-16 14:08:02,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:08:02,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:08:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:02,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:08:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:02,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:02,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:02,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:08:02,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:02,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:02,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:02,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:08:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:02,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:02,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:02,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:08:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:02,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:02,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:02,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:08:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:02,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:02,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:08:02,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:02,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:02,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-16 14:08:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:02,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-10-16 14:08:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:02,595 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-10-16 14:08:02,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:08:02,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024129498] [2022-10-16 14:08:02,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024129498] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:08:02,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:08:02,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:08:02,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179521238] [2022-10-16 14:08:02,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:08:02,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:08:02,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:08:02,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:08:02,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:08:02,599 INFO L87 Difference]: Start difference. First operand 7265 states and 10769 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 14:08:09,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:08:09,417 INFO L93 Difference]: Finished difference Result 15022 states and 22346 transitions. [2022-10-16 14:08:09,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:08:09,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 120 [2022-10-16 14:08:09,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:08:09,460 INFO L225 Difference]: With dead ends: 15022 [2022-10-16 14:08:09,461 INFO L226 Difference]: Without dead ends: 7780 [2022-10-16 14:08:09,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:08:09,493 INFO L413 NwaCegarLoop]: 2570 mSDtfsCounter, 4515 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 1687 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4711 SdHoareTripleChecker+Valid, 3845 SdHoareTripleChecker+Invalid, 2690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1687 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:08:09,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4711 Valid, 3845 Invalid, 2690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1687 Valid, 1003 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-10-16 14:08:09,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7780 states. [2022-10-16 14:08:10,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7780 to 7257. [2022-10-16 14:08:10,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7257 states, 5407 states have (on average 1.4409099315701868) internal successors, (7791), 5820 states have internal predecessors, (7791), 1261 states have call successors, (1261), 337 states have call predecessors, (1261), 393 states have return successors, (1697), 1197 states have call predecessors, (1697), 1261 states have call successors, (1697) [2022-10-16 14:08:10,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7257 states to 7257 states and 10749 transitions. [2022-10-16 14:08:10,207 INFO L78 Accepts]: Start accepts. Automaton has 7257 states and 10749 transitions. Word has length 120 [2022-10-16 14:08:10,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:08:10,208 INFO L495 AbstractCegarLoop]: Abstraction has 7257 states and 10749 transitions. [2022-10-16 14:08:10,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 14:08:10,209 INFO L276 IsEmpty]: Start isEmpty. Operand 7257 states and 10749 transitions. [2022-10-16 14:08:10,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-10-16 14:08:10,211 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:08:10,211 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:08:10,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 14:08:10,212 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting vub300_pollwork_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:08:10,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:08:10,212 INFO L85 PathProgramCache]: Analyzing trace with hash 137516250, now seen corresponding path program 1 times [2022-10-16 14:08:10,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:08:10,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195970274] [2022-10-16 14:08:10,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:08:10,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:08:10,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:10,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:08:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:10,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:10,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:10,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:08:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:10,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:10,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:10,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:08:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:10,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:10,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:10,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:08:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:10,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:10,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:10,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:08:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:10,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:10,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:08:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:10,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:10,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 14:08:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:10,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 14:08:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:10,556 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-10-16 14:08:10,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:08:10,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195970274] [2022-10-16 14:08:10,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195970274] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:08:10,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:08:10,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:08:10,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963137081] [2022-10-16 14:08:10,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:08:10,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:08:10,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:08:10,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:08:10,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:08:10,559 INFO L87 Difference]: Start difference. First operand 7257 states and 10749 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 14:08:22,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:08:22,095 INFO L93 Difference]: Finished difference Result 15006 states and 22306 transitions. [2022-10-16 14:08:22,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:08:22,096 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 119 [2022-10-16 14:08:22,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:08:22,133 INFO L225 Difference]: With dead ends: 15006 [2022-10-16 14:08:22,133 INFO L226 Difference]: Without dead ends: 7772 [2022-10-16 14:08:22,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:08:22,165 INFO L413 NwaCegarLoop]: 2565 mSDtfsCounter, 3764 mSDsluCounter, 3366 mSDsCounter, 0 mSdLazyCounter, 2364 mSolverCounterSat, 1198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3960 SdHoareTripleChecker+Valid, 5931 SdHoareTripleChecker+Invalid, 3562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1198 IncrementalHoareTripleChecker+Valid, 2364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-10-16 14:08:22,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3960 Valid, 5931 Invalid, 3562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1198 Valid, 2364 Invalid, 0 Unknown, 0 Unchecked, 10.8s Time] [2022-10-16 14:08:22,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7772 states. [2022-10-16 14:08:22,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7772 to 7249. [2022-10-16 14:08:22,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7249 states, 5403 states have (on average 1.4404960207292246) internal successors, (7783), 5816 states have internal predecessors, (7783), 1257 states have call successors, (1257), 337 states have call predecessors, (1257), 393 states have return successors, (1689), 1193 states have call predecessors, (1689), 1257 states have call successors, (1689) [2022-10-16 14:08:22,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7249 states to 7249 states and 10729 transitions. [2022-10-16 14:08:22,886 INFO L78 Accepts]: Start accepts. Automaton has 7249 states and 10729 transitions. Word has length 119 [2022-10-16 14:08:22,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:08:22,887 INFO L495 AbstractCegarLoop]: Abstraction has 7249 states and 10729 transitions. [2022-10-16 14:08:22,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 14:08:22,888 INFO L276 IsEmpty]: Start isEmpty. Operand 7249 states and 10729 transitions. [2022-10-16 14:08:22,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-10-16 14:08:22,890 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:08:22,891 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:08:22,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 14:08:22,891 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting vub300_pollwork_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:08:22,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:08:22,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1175118863, now seen corresponding path program 1 times [2022-10-16 14:08:22,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:08:22,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830771794] [2022-10-16 14:08:22,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:08:22,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:08:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:23,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:08:23,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:23,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:23,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:23,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:08:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:23,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:23,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:23,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:08:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:23,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:23,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:23,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:08:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:23,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:23,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:23,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:08:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:23,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:23,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:08:23,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:23,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:23,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 14:08:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:23,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-16 14:08:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:23,291 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-10-16 14:08:23,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:08:23,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830771794] [2022-10-16 14:08:23,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830771794] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:08:23,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:08:23,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:08:23,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243928618] [2022-10-16 14:08:23,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:08:23,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:08:23,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:08:23,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:08:23,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:08:23,296 INFO L87 Difference]: Start difference. First operand 7249 states and 10729 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 14:08:29,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:08:29,165 INFO L93 Difference]: Finished difference Result 14990 states and 22266 transitions. [2022-10-16 14:08:29,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:08:29,166 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 122 [2022-10-16 14:08:29,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:08:29,203 INFO L225 Difference]: With dead ends: 14990 [2022-10-16 14:08:29,203 INFO L226 Difference]: Without dead ends: 7764 [2022-10-16 14:08:29,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:08:29,232 INFO L413 NwaCegarLoop]: 2536 mSDtfsCounter, 4532 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 1680 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4731 SdHoareTripleChecker+Valid, 3805 SdHoareTripleChecker+Invalid, 2677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1680 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:08:29,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4731 Valid, 3805 Invalid, 2677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1680 Valid, 997 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-10-16 14:08:29,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7764 states. [2022-10-16 14:08:29,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7764 to 7241. [2022-10-16 14:08:29,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7241 states, 5399 states have (on average 1.4400814965734394) internal successors, (7775), 5812 states have internal predecessors, (7775), 1253 states have call successors, (1253), 337 states have call predecessors, (1253), 393 states have return successors, (1681), 1189 states have call predecessors, (1681), 1253 states have call successors, (1681) [2022-10-16 14:08:29,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7241 states to 7241 states and 10709 transitions. [2022-10-16 14:08:29,949 INFO L78 Accepts]: Start accepts. Automaton has 7241 states and 10709 transitions. Word has length 122 [2022-10-16 14:08:29,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:08:29,950 INFO L495 AbstractCegarLoop]: Abstraction has 7241 states and 10709 transitions. [2022-10-16 14:08:29,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 14:08:29,950 INFO L276 IsEmpty]: Start isEmpty. Operand 7241 states and 10709 transitions. [2022-10-16 14:08:29,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 14:08:29,952 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:08:29,953 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:08:29,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 14:08:29,953 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting vub300_pollwork_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:08:29,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:08:29,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1777815011, now seen corresponding path program 1 times [2022-10-16 14:08:29,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:08:29,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931203624] [2022-10-16 14:08:29,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:08:29,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:08:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:08:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:08:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:30,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:08:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:30,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:08:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:30,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:08:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:08:30,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-16 14:08:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 14:08:30,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:30,317 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-10-16 14:08:30,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:08:30,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931203624] [2022-10-16 14:08:30,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931203624] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:08:30,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:08:30,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:08:30,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832546461] [2022-10-16 14:08:30,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:08:30,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:08:30,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:08:30,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:08:30,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:08:30,321 INFO L87 Difference]: Start difference. First operand 7241 states and 10709 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 14:08:40,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:08:40,064 INFO L93 Difference]: Finished difference Result 14974 states and 22226 transitions. [2022-10-16 14:08:40,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:08:40,064 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 121 [2022-10-16 14:08:40,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:08:40,101 INFO L225 Difference]: With dead ends: 14974 [2022-10-16 14:08:40,102 INFO L226 Difference]: Without dead ends: 7756 [2022-10-16 14:08:40,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:08:40,127 INFO L413 NwaCegarLoop]: 2539 mSDtfsCounter, 3770 mSDsluCounter, 2342 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 1210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3965 SdHoareTripleChecker+Valid, 4881 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1210 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:08:40,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3965 Valid, 4881 Invalid, 2868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1210 Valid, 1658 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2022-10-16 14:08:40,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7756 states. [2022-10-16 14:08:40,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7756 to 7233. [2022-10-16 14:08:40,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7233 states, 5395 states have (on average 1.4396663577386468) internal successors, (7767), 5808 states have internal predecessors, (7767), 1249 states have call successors, (1249), 337 states have call predecessors, (1249), 393 states have return successors, (1673), 1185 states have call predecessors, (1673), 1249 states have call successors, (1673) [2022-10-16 14:08:40,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7233 states to 7233 states and 10689 transitions. [2022-10-16 14:08:40,820 INFO L78 Accepts]: Start accepts. Automaton has 7233 states and 10689 transitions. Word has length 121 [2022-10-16 14:08:40,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:08:40,821 INFO L495 AbstractCegarLoop]: Abstraction has 7233 states and 10689 transitions. [2022-10-16 14:08:40,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 14:08:40,822 INFO L276 IsEmpty]: Start isEmpty. Operand 7233 states and 10689 transitions. [2022-10-16 14:08:40,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-10-16 14:08:40,824 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:08:40,824 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:08:40,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 14:08:40,825 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting vub300_cmndwork_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:08:40,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:08:40,825 INFO L85 PathProgramCache]: Analyzing trace with hash -197066775, now seen corresponding path program 1 times [2022-10-16 14:08:40,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:08:40,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663584317] [2022-10-16 14:08:40,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:08:40,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:08:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:40,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:08:40,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:40,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:40,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:41,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:08:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:41,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:41,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:41,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:08:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:41,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:41,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:41,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:41,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:08:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:41,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:41,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:41,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:08:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:41,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:41,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:08:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:41,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:41,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-10-16 14:08:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:41,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 14:08:41,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:41,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 14:08:41,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:41,131 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-10-16 14:08:41,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:08:41,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663584317] [2022-10-16 14:08:41,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663584317] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:08:41,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:08:41,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 14:08:41,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480792658] [2022-10-16 14:08:41,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:08:41,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:08:41,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:08:41,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:08:41,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:08:41,134 INFO L87 Difference]: Start difference. First operand 7233 states and 10689 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-16 14:08:53,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:08:53,880 INFO L93 Difference]: Finished difference Result 14970 states and 22458 transitions. [2022-10-16 14:08:53,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:08:53,880 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 126 [2022-10-16 14:08:53,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:08:53,920 INFO L225 Difference]: With dead ends: 14970 [2022-10-16 14:08:53,921 INFO L226 Difference]: Without dead ends: 7760 [2022-10-16 14:08:53,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:08:53,956 INFO L413 NwaCegarLoop]: 2574 mSDtfsCounter, 1920 mSDsluCounter, 5334 mSDsCounter, 0 mSdLazyCounter, 3191 mSolverCounterSat, 1252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1994 SdHoareTripleChecker+Valid, 7908 SdHoareTripleChecker+Invalid, 4443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1252 IncrementalHoareTripleChecker+Valid, 3191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:08:53,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1994 Valid, 7908 Invalid, 4443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1252 Valid, 3191 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2022-10-16 14:08:53,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7760 states. [2022-10-16 14:08:54,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7760 to 7237. [2022-10-16 14:08:54,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7237 states, 5399 states have (on average 1.4393406186330802) internal successors, (7771), 5812 states have internal predecessors, (7771), 1249 states have call successors, (1249), 337 states have call predecessors, (1249), 393 states have return successors, (1673), 1185 states have call predecessors, (1673), 1249 states have call successors, (1673) [2022-10-16 14:08:54,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7237 states to 7237 states and 10693 transitions. [2022-10-16 14:08:54,781 INFO L78 Accepts]: Start accepts. Automaton has 7237 states and 10693 transitions. Word has length 126 [2022-10-16 14:08:54,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:08:54,782 INFO L495 AbstractCegarLoop]: Abstraction has 7237 states and 10693 transitions. [2022-10-16 14:08:54,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-16 14:08:54,782 INFO L276 IsEmpty]: Start isEmpty. Operand 7237 states and 10693 transitions. [2022-10-16 14:08:54,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-10-16 14:08:54,785 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:08:54,785 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:08:54,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 14:08:54,786 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting vub300_cmndwork_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:08:54,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:08:54,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1765307833, now seen corresponding path program 1 times [2022-10-16 14:08:54,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:08:54,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521924164] [2022-10-16 14:08:54,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:08:54,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:08:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:55,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:08:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:55,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:55,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:55,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:08:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:55,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:55,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:55,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:08:55,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:55,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:55,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:55,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:55,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:55,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:08:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:55,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:55,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:08:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:55,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:08:55,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:55,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:55,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:08:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:55,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:55,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 14:08:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:55,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 14:08:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:55,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-16 14:08:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:55,201 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-10-16 14:08:55,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:08:55,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521924164] [2022-10-16 14:08:55,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521924164] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:08:55,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:08:55,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 14:08:55,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421191287] [2022-10-16 14:08:55,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:08:55,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 14:08:55,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:08:55,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 14:08:55,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:08:55,204 INFO L87 Difference]: Start difference. First operand 7237 states and 10693 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-16 14:09:06,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:09:06,504 INFO L93 Difference]: Finished difference Result 14986 states and 22474 transitions. [2022-10-16 14:09:06,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:09:06,505 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 127 [2022-10-16 14:09:06,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:09:06,538 INFO L225 Difference]: With dead ends: 14986 [2022-10-16 14:09:06,538 INFO L226 Difference]: Without dead ends: 7772 [2022-10-16 14:09:06,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:09:06,569 INFO L413 NwaCegarLoop]: 2563 mSDtfsCounter, 1340 mSDsluCounter, 6443 mSDsCounter, 0 mSdLazyCounter, 3453 mSolverCounterSat, 833 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 9006 SdHoareTripleChecker+Invalid, 4286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 833 IncrementalHoareTripleChecker+Valid, 3453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:09:06,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 9006 Invalid, 4286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [833 Valid, 3453 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2022-10-16 14:09:06,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7772 states. [2022-10-16 14:09:07,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7772 to 7245. [2022-10-16 14:09:07,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7245 states, 5407 states have (on average 1.4386905862770483) internal successors, (7779), 5820 states have internal predecessors, (7779), 1249 states have call successors, (1249), 337 states have call predecessors, (1249), 393 states have return successors, (1673), 1185 states have call predecessors, (1673), 1249 states have call successors, (1673) [2022-10-16 14:09:07,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7245 states to 7245 states and 10701 transitions. [2022-10-16 14:09:07,165 INFO L78 Accepts]: Start accepts. Automaton has 7245 states and 10701 transitions. Word has length 127 [2022-10-16 14:09:07,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:09:07,166 INFO L495 AbstractCegarLoop]: Abstraction has 7245 states and 10701 transitions. [2022-10-16 14:09:07,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-16 14:09:07,166 INFO L276 IsEmpty]: Start isEmpty. Operand 7245 states and 10701 transitions. [2022-10-16 14:09:07,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-10-16 14:09:07,169 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:09:07,169 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:09:07,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 14:09:07,170 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting vub300_cmndwork_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:09:07,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:09:07,170 INFO L85 PathProgramCache]: Analyzing trace with hash -949155099, now seen corresponding path program 1 times [2022-10-16 14:09:07,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:09:07,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810945421] [2022-10-16 14:09:07,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:09:07,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:09:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:07,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:09:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:07,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:07,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:07,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:09:07,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:07,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:07,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:07,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:07,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:09:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:07,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:07,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:07,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:07,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:09:07,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:07,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:07,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:07,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:07,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:09:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:07,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:07,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:09:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:07,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:07,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-10-16 14:09:07,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:07,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 14:09:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:07,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-16 14:09:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:07,904 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-10-16 14:09:07,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:09:07,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810945421] [2022-10-16 14:09:07,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810945421] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:09:07,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:09:07,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-16 14:09:07,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933501098] [2022-10-16 14:09:07,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:09:07,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 14:09:07,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:09:07,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 14:09:07,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:09:07,907 INFO L87 Difference]: Start difference. First operand 7245 states and 10701 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 14:09:19,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:09:19,420 INFO L93 Difference]: Finished difference Result 14987 states and 22215 transitions. [2022-10-16 14:09:19,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:09:19,420 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 126 [2022-10-16 14:09:19,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:09:19,450 INFO L225 Difference]: With dead ends: 14987 [2022-10-16 14:09:19,450 INFO L226 Difference]: Without dead ends: 7765 [2022-10-16 14:09:19,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:09:19,477 INFO L413 NwaCegarLoop]: 2412 mSDtfsCounter, 4270 mSDsluCounter, 4705 mSDsCounter, 0 mSdLazyCounter, 4218 mSolverCounterSat, 1396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4481 SdHoareTripleChecker+Valid, 7117 SdHoareTripleChecker+Invalid, 5614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1396 IncrementalHoareTripleChecker+Valid, 4218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-10-16 14:09:19,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4481 Valid, 7117 Invalid, 5614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1396 Valid, 4218 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2022-10-16 14:09:19,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7765 states. [2022-10-16 14:09:20,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7765 to 7237. [2022-10-16 14:09:20,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7237 states, 5403 states have (on average 1.4382750323894133) internal successors, (7771), 5816 states have internal predecessors, (7771), 1245 states have call successors, (1245), 337 states have call predecessors, (1245), 393 states have return successors, (1665), 1181 states have call predecessors, (1665), 1245 states have call successors, (1665) [2022-10-16 14:09:20,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7237 states to 7237 states and 10681 transitions. [2022-10-16 14:09:20,393 INFO L78 Accepts]: Start accepts. Automaton has 7237 states and 10681 transitions. Word has length 126 [2022-10-16 14:09:20,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:09:20,393 INFO L495 AbstractCegarLoop]: Abstraction has 7237 states and 10681 transitions. [2022-10-16 14:09:20,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 14:09:20,394 INFO L276 IsEmpty]: Start isEmpty. Operand 7237 states and 10681 transitions. [2022-10-16 14:09:20,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-10-16 14:09:20,396 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:09:20,396 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:09:20,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 14:09:20,397 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting vub300_cmndwork_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:09:20,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:09:20,397 INFO L85 PathProgramCache]: Analyzing trace with hash 624332142, now seen corresponding path program 1 times [2022-10-16 14:09:20,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:09:20,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309072916] [2022-10-16 14:09:20,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:09:20,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:09:20,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:20,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:09:20,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:20,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:20,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:20,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:20,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:09:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:20,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:20,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:20,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:09:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:20,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:20,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:20,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:09:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:20,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:20,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:20,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:09:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:20,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:20,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:09:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:20,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:20,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-10-16 14:09:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:21,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-16 14:09:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:21,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-16 14:09:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:21,025 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-10-16 14:09:21,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:09:21,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309072916] [2022-10-16 14:09:21,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309072916] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:09:21,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:09:21,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-16 14:09:21,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881539055] [2022-10-16 14:09:21,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:09:21,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 14:09:21,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:09:21,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 14:09:21,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:09:21,028 INFO L87 Difference]: Start difference. First operand 7237 states and 10681 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 14:09:28,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:09:28,801 INFO L93 Difference]: Finished difference Result 14971 states and 22175 transitions. [2022-10-16 14:09:28,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:09:28,802 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 128 [2022-10-16 14:09:28,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:09:28,828 INFO L225 Difference]: With dead ends: 14971 [2022-10-16 14:09:28,828 INFO L226 Difference]: Without dead ends: 7757 [2022-10-16 14:09:28,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:09:28,850 INFO L413 NwaCegarLoop]: 2452 mSDtfsCounter, 5304 mSDsluCounter, 2680 mSDsCounter, 0 mSdLazyCounter, 2392 mSolverCounterSat, 1898 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5515 SdHoareTripleChecker+Valid, 5132 SdHoareTripleChecker+Invalid, 4290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1898 IncrementalHoareTripleChecker+Valid, 2392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-10-16 14:09:28,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5515 Valid, 5132 Invalid, 4290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1898 Valid, 2392 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-10-16 14:09:28,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7757 states. [2022-10-16 14:09:29,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7757 to 7229. [2022-10-16 14:09:29,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7229 states, 5399 states have (on average 1.4378588627523616) internal successors, (7763), 5812 states have internal predecessors, (7763), 1241 states have call successors, (1241), 337 states have call predecessors, (1241), 393 states have return successors, (1657), 1177 states have call predecessors, (1657), 1241 states have call successors, (1657) [2022-10-16 14:09:29,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7229 states to 7229 states and 10661 transitions. [2022-10-16 14:09:29,713 INFO L78 Accepts]: Start accepts. Automaton has 7229 states and 10661 transitions. Word has length 128 [2022-10-16 14:09:29,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:09:29,714 INFO L495 AbstractCegarLoop]: Abstraction has 7229 states and 10661 transitions. [2022-10-16 14:09:29,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 14:09:29,714 INFO L276 IsEmpty]: Start isEmpty. Operand 7229 states and 10661 transitions. [2022-10-16 14:09:29,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-10-16 14:09:29,718 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:09:29,718 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:09:29,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 14:09:29,718 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting vub300_cmndwork_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:09:29,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:09:29,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1236439122, now seen corresponding path program 1 times [2022-10-16 14:09:29,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:09:29,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982998211] [2022-10-16 14:09:29,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:09:29,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:09:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:30,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:09:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:30,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:30,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:30,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:09:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:30,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:30,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:30,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:30,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:09:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:30,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:30,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:30,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:30,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:09:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:30,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:30,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:30,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:09:30,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:30,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:30,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:09:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:30,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:30,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-16 14:09:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:30,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-10-16 14:09:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:30,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 14:09:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:30,307 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-10-16 14:09:30,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:09:30,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982998211] [2022-10-16 14:09:30,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982998211] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:09:30,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:09:30,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-16 14:09:30,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84760439] [2022-10-16 14:09:30,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:09:30,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 14:09:30,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:09:30,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 14:09:30,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:09:30,309 INFO L87 Difference]: Start difference. First operand 7229 states and 10661 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 14:09:39,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:09:40,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:09:43,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:09:43,078 INFO L93 Difference]: Finished difference Result 14955 states and 22135 transitions. [2022-10-16 14:09:43,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:09:43,079 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 129 [2022-10-16 14:09:43,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:09:43,107 INFO L225 Difference]: With dead ends: 14955 [2022-10-16 14:09:43,107 INFO L226 Difference]: Without dead ends: 7749 [2022-10-16 14:09:43,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:09:43,131 INFO L413 NwaCegarLoop]: 2426 mSDtfsCounter, 4998 mSDsluCounter, 4518 mSDsCounter, 0 mSdLazyCounter, 4148 mSolverCounterSat, 1857 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5208 SdHoareTripleChecker+Valid, 6944 SdHoareTripleChecker+Invalid, 6005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1857 IncrementalHoareTripleChecker+Valid, 4148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-10-16 14:09:43,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5208 Valid, 6944 Invalid, 6005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1857 Valid, 4148 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2022-10-16 14:09:43,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7749 states. [2022-10-16 14:09:43,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7749 to 7221. [2022-10-16 14:09:43,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7221 states, 5395 states have (on average 1.437442075996293) internal successors, (7755), 5808 states have internal predecessors, (7755), 1237 states have call successors, (1237), 337 states have call predecessors, (1237), 393 states have return successors, (1649), 1173 states have call predecessors, (1649), 1237 states have call successors, (1649) [2022-10-16 14:09:43,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7221 states to 7221 states and 10641 transitions. [2022-10-16 14:09:43,843 INFO L78 Accepts]: Start accepts. Automaton has 7221 states and 10641 transitions. Word has length 129 [2022-10-16 14:09:43,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:09:43,843 INFO L495 AbstractCegarLoop]: Abstraction has 7221 states and 10641 transitions. [2022-10-16 14:09:43,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 14:09:43,843 INFO L276 IsEmpty]: Start isEmpty. Operand 7221 states and 10641 transitions. [2022-10-16 14:09:43,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-10-16 14:09:43,846 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:09:43,847 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:09:43,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 14:09:43,847 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting vub300_cmndwork_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:09:43,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:09:43,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1720312837, now seen corresponding path program 1 times [2022-10-16 14:09:43,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:09:43,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590908073] [2022-10-16 14:09:43,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:09:43,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:09:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:44,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:09:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:44,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:44,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:44,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:44,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:09:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:44,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:44,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:44,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:44,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:44,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:09:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:44,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:44,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:44,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:09:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:44,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:44,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:44,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:09:44,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:44,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:44,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:09:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:44,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:44,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-10-16 14:09:44,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:44,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 14:09:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:44,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-16 14:09:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:44,495 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-10-16 14:09:44,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:09:44,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590908073] [2022-10-16 14:09:44,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590908073] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:09:44,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:09:44,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-16 14:09:44,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500863785] [2022-10-16 14:09:44,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:09:44,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 14:09:44,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:09:44,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 14:09:44,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:09:44,501 INFO L87 Difference]: Start difference. First operand 7221 states and 10641 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 14:09:48,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:09:48,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:09:48,899 INFO L93 Difference]: Finished difference Result 9900 states and 14384 transitions. [2022-10-16 14:09:48,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:09:48,900 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 127 [2022-10-16 14:09:48,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:09:48,907 INFO L225 Difference]: With dead ends: 9900 [2022-10-16 14:09:48,907 INFO L226 Difference]: Without dead ends: 2702 [2022-10-16 14:09:48,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:09:48,919 INFO L413 NwaCegarLoop]: 955 mSDtfsCounter, 1802 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 773 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1913 SdHoareTripleChecker+Valid, 2210 SdHoareTripleChecker+Invalid, 2009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 773 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-10-16 14:09:48,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1913 Valid, 2210 Invalid, 2009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [773 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-10-16 14:09:48,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2022-10-16 14:09:49,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 2639. [2022-10-16 14:09:49,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 1962 states have (on average 1.3501529051987768) internal successors, (2649), 2075 states have internal predecessors, (2649), 453 states have call successors, (453), 164 states have call predecessors, (453), 186 states have return successors, (575), 433 states have call predecessors, (575), 453 states have call successors, (575) [2022-10-16 14:09:49,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 3677 transitions. [2022-10-16 14:09:49,149 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 3677 transitions. Word has length 127 [2022-10-16 14:09:49,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:09:49,149 INFO L495 AbstractCegarLoop]: Abstraction has 2639 states and 3677 transitions. [2022-10-16 14:09:49,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 14:09:49,150 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 3677 transitions. [2022-10-16 14:09:49,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-16 14:09:49,152 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:09:49,152 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:09:49,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 14:09:49,153 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting vub300_enable_sdio_irqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:09:49,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:09:49,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1594854972, now seen corresponding path program 1 times [2022-10-16 14:09:49,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:09:49,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872908605] [2022-10-16 14:09:49,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:09:49,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:09:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:09:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:09:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:09:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:09:49,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:49,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:09:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:49,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:09:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-10-16 14:09:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 14:09:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:09:49,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:09:49,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-10-16 14:09:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:49,423 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-10-16 14:09:49,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:09:49,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872908605] [2022-10-16 14:09:49,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872908605] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:09:49,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:09:49,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:09:49,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733297335] [2022-10-16 14:09:49,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:09:49,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:09:49,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:09:49,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:09:49,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:09:49,426 INFO L87 Difference]: Start difference. First operand 2639 states and 3677 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 14:09:54,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:09:54,686 INFO L93 Difference]: Finished difference Result 6853 states and 9484 transitions. [2022-10-16 14:09:54,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:09:54,687 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2022-10-16 14:09:54,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:09:54,696 INFO L225 Difference]: With dead ends: 6853 [2022-10-16 14:09:54,697 INFO L226 Difference]: Without dead ends: 4241 [2022-10-16 14:09:54,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:09:54,702 INFO L413 NwaCegarLoop]: 1136 mSDtfsCounter, 1337 mSDsluCounter, 2231 mSDsCounter, 0 mSdLazyCounter, 1504 mSolverCounterSat, 642 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1398 SdHoareTripleChecker+Valid, 3367 SdHoareTripleChecker+Invalid, 2146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 642 IncrementalHoareTripleChecker+Valid, 1504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-10-16 14:09:54,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1398 Valid, 3367 Invalid, 2146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [642 Valid, 1504 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-10-16 14:09:54,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4241 states. [2022-10-16 14:09:55,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4241 to 4137. [2022-10-16 14:09:55,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4137 states, 3101 states have (on average 1.3427926475330538) internal successors, (4164), 3238 states have internal predecessors, (4164), 691 states have call successors, (691), 275 states have call predecessors, (691), 307 states have return successors, (863), 675 states have call predecessors, (863), 691 states have call successors, (863) [2022-10-16 14:09:55,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4137 states to 4137 states and 5718 transitions. [2022-10-16 14:09:55,065 INFO L78 Accepts]: Start accepts. Automaton has 4137 states and 5718 transitions. Word has length 132 [2022-10-16 14:09:55,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:09:55,065 INFO L495 AbstractCegarLoop]: Abstraction has 4137 states and 5718 transitions. [2022-10-16 14:09:55,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-10-16 14:09:55,066 INFO L276 IsEmpty]: Start isEmpty. Operand 4137 states and 5718 transitions. [2022-10-16 14:09:55,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-10-16 14:09:55,070 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:09:55,070 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:09:55,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 14:09:55,071 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:09:55,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:09:55,071 INFO L85 PathProgramCache]: Analyzing trace with hash 656288477, now seen corresponding path program 1 times [2022-10-16 14:09:55,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:09:55,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644003615] [2022-10-16 14:09:55,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:09:55,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:09:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:09:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:09:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:55,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:09:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:09:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:09:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:09:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:55,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 14:09:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:09:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-16 14:09:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:09:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:09:55,499 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2022-10-16 14:09:55,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:09:55,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644003615] [2022-10-16 14:09:55,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644003615] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:09:55,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:09:55,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 14:09:55,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581209284] [2022-10-16 14:09:55,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:09:55,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 14:09:55,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:09:55,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 14:09:55,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:09:55,502 INFO L87 Difference]: Start difference. First operand 4137 states and 5718 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 14:09:59,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:09:59,346 INFO L93 Difference]: Finished difference Result 10475 states and 14938 transitions. [2022-10-16 14:09:59,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:09:59,347 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 150 [2022-10-16 14:09:59,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:09:59,361 INFO L225 Difference]: With dead ends: 10475 [2022-10-16 14:09:59,361 INFO L226 Difference]: Without dead ends: 6379 [2022-10-16 14:09:59,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:09:59,369 INFO L413 NwaCegarLoop]: 1365 mSDtfsCounter, 2414 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 1056 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2509 SdHoareTripleChecker+Valid, 2899 SdHoareTripleChecker+Invalid, 2043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1056 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:09:59,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2509 Valid, 2899 Invalid, 2043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1056 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-10-16 14:09:59,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6379 states. [2022-10-16 14:09:59,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6379 to 4141. [2022-10-16 14:09:59,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4141 states, 3105 states have (on average 1.3423510466988728) internal successors, (4168), 3242 states have internal predecessors, (4168), 691 states have call successors, (691), 275 states have call predecessors, (691), 307 states have return successors, (863), 675 states have call predecessors, (863), 691 states have call successors, (863) [2022-10-16 14:09:59,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4141 states to 4141 states and 5722 transitions. [2022-10-16 14:09:59,891 INFO L78 Accepts]: Start accepts. Automaton has 4141 states and 5722 transitions. Word has length 150 [2022-10-16 14:09:59,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:09:59,891 INFO L495 AbstractCegarLoop]: Abstraction has 4141 states and 5722 transitions. [2022-10-16 14:09:59,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 14:09:59,892 INFO L276 IsEmpty]: Start isEmpty. Operand 4141 states and 5722 transitions. [2022-10-16 14:09:59,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-16 14:09:59,897 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:09:59,897 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:09:59,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 14:09:59,898 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting vub300_enable_sdio_irqErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:09:59,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:09:59,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1859246663, now seen corresponding path program 1 times [2022-10-16 14:09:59,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:09:59,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643499392] [2022-10-16 14:09:59,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:09:59,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:09:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:10:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:10:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:10:00,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:00,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:10:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:10:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:10:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:10:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:10:00,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:10:00,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:10:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 14:10:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:10:00,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-10-16 14:10:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-10-16 14:10:00,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:10:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:10:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-10-16 14:10:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:00,302 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-10-16 14:10:00,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:00,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643499392] [2022-10-16 14:10:00,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643499392] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:00,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:10:00,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 14:10:00,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841270430] [2022-10-16 14:10:00,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:00,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 14:10:00,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:00,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 14:10:00,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:10:00,304 INFO L87 Difference]: Start difference. First operand 4141 states and 5722 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 14:10:03,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:10:03,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:03,804 INFO L93 Difference]: Finished difference Result 8341 states and 11556 transitions. [2022-10-16 14:10:03,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:10:03,804 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 166 [2022-10-16 14:10:03,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:03,814 INFO L225 Difference]: With dead ends: 8341 [2022-10-16 14:10:03,814 INFO L226 Difference]: Without dead ends: 4061 [2022-10-16 14:10:03,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:10:03,824 INFO L413 NwaCegarLoop]: 1064 mSDtfsCounter, 614 mSDsluCounter, 2748 mSDsCounter, 0 mSdLazyCounter, 1507 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 3812 SdHoareTripleChecker+Invalid, 2060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 1507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:03,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 3812 Invalid, 2060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 1507 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-10-16 14:10:03,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4061 states. [2022-10-16 14:10:04,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4061 to 3971. [2022-10-16 14:10:04,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3971 states, 2989 states have (on average 1.340916694546671) internal successors, (4008), 3110 states have internal predecessors, (4008), 653 states have call successors, (653), 259 states have call predecessors, (653), 291 states have return successors, (825), 637 states have call predecessors, (825), 653 states have call successors, (825) [2022-10-16 14:10:04,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3971 states to 3971 states and 5486 transitions. [2022-10-16 14:10:04,331 INFO L78 Accepts]: Start accepts. Automaton has 3971 states and 5486 transitions. Word has length 166 [2022-10-16 14:10:04,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:04,331 INFO L495 AbstractCegarLoop]: Abstraction has 3971 states and 5486 transitions. [2022-10-16 14:10:04,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-10-16 14:10:04,332 INFO L276 IsEmpty]: Start isEmpty. Operand 3971 states and 5486 transitions. [2022-10-16 14:10:04,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-10-16 14:10:04,336 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:04,336 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:04,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 14:10:04,337 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:10:04,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:04,337 INFO L85 PathProgramCache]: Analyzing trace with hash 435119279, now seen corresponding path program 1 times [2022-10-16 14:10:04,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:04,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303064369] [2022-10-16 14:10:04,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:04,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:04,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:10:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:04,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:10:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:10:04,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:10:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:10:04,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:10:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:10:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:10:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:10:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:10:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 14:10:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:10:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-16 14:10:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:10:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-16 14:10:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:04,710 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2022-10-16 14:10:04,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:04,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303064369] [2022-10-16 14:10:04,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303064369] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:04,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:10:04,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 14:10:04,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161562806] [2022-10-16 14:10:04,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:04,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:10:04,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:04,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:10:04,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:10:04,713 INFO L87 Difference]: Start difference. First operand 3971 states and 5486 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-10-16 14:10:09,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:09,657 INFO L93 Difference]: Finished difference Result 9417 states and 13038 transitions. [2022-10-16 14:10:09,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:10:09,658 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 168 [2022-10-16 14:10:09,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:09,670 INFO L225 Difference]: With dead ends: 9417 [2022-10-16 14:10:09,670 INFO L226 Difference]: Without dead ends: 5487 [2022-10-16 14:10:09,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:10:09,677 INFO L413 NwaCegarLoop]: 1312 mSDtfsCounter, 1650 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 1164 mSolverCounterSat, 859 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 2992 SdHoareTripleChecker+Invalid, 2023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 859 IncrementalHoareTripleChecker+Valid, 1164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:09,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1747 Valid, 2992 Invalid, 2023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [859 Valid, 1164 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-10-16 14:10:09,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5487 states. [2022-10-16 14:10:10,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5487 to 5299. [2022-10-16 14:10:10,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 4023 states have (on average 1.339796172010937) internal successors, (5390), 4174 states have internal predecessors, (5390), 843 states have call successors, (843), 349 states have call predecessors, (843), 395 states have return successors, (1091), 819 states have call predecessors, (1091), 843 states have call successors, (1091) [2022-10-16 14:10:10,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 7324 transitions. [2022-10-16 14:10:10,307 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 7324 transitions. Word has length 168 [2022-10-16 14:10:10,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:10,307 INFO L495 AbstractCegarLoop]: Abstraction has 5299 states and 7324 transitions. [2022-10-16 14:10:10,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-10-16 14:10:10,308 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 7324 transitions. [2022-10-16 14:10:10,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-10-16 14:10:10,311 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:10,311 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:10,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 14:10:10,312 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting vub300_deleteErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:10:10,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:10,312 INFO L85 PathProgramCache]: Analyzing trace with hash -390975432, now seen corresponding path program 1 times [2022-10-16 14:10:10,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:10,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699975167] [2022-10-16 14:10:10,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:10,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:10:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:10:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:10:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:11,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:10:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:10:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:10:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:10:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:10:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:10:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:10:11,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-16 14:10:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:10:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:11,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:10:11,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 14:10:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 14:10:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-16 14:10:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:11,721 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-10-16 14:10:11,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:11,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699975167] [2022-10-16 14:10:11,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699975167] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:11,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519231135] [2022-10-16 14:10:11,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:11,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:11,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:11,731 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:10:11,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:10:12,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:12,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 2114 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 14:10:12,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:12,588 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-10-16 14:10:12,588 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:10:12,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519231135] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:12,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:10:12,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 14 [2022-10-16 14:10:12,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074724942] [2022-10-16 14:10:12,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:12,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:10:12,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:12,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:10:12,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:10:12,591 INFO L87 Difference]: Start difference. First operand 5299 states and 7324 transitions. Second operand has 4 states, 3 states have (on average 27.0) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-16 14:10:14,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:14,548 INFO L93 Difference]: Finished difference Result 7936 states and 11031 transitions. [2022-10-16 14:10:14,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:10:14,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 27.0) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 171 [2022-10-16 14:10:14,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:14,564 INFO L225 Difference]: With dead ends: 7936 [2022-10-16 14:10:14,564 INFO L226 Difference]: Without dead ends: 7935 [2022-10-16 14:10:14,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:10:14,567 INFO L413 NwaCegarLoop]: 1468 mSDtfsCounter, 2756 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2756 SdHoareTripleChecker+Valid, 2255 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:14,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2756 Valid, 2255 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 14:10:14,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7935 states. [2022-10-16 14:10:15,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7935 to 7785. [2022-10-16 14:10:15,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7785 states, 5933 states have (on average 1.342322602393393) internal successors, (7964), 6126 states have internal predecessors, (7964), 1248 states have call successors, (1248), 521 states have call predecessors, (1248), 567 states have return successors, (1640), 1203 states have call predecessors, (1640), 1248 states have call successors, (1640) [2022-10-16 14:10:15,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7785 states to 7785 states and 10852 transitions. [2022-10-16 14:10:15,507 INFO L78 Accepts]: Start accepts. Automaton has 7785 states and 10852 transitions. Word has length 171 [2022-10-16 14:10:15,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:15,507 INFO L495 AbstractCegarLoop]: Abstraction has 7785 states and 10852 transitions. [2022-10-16 14:10:15,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 27.0) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-16 14:10:15,508 INFO L276 IsEmpty]: Start isEmpty. Operand 7785 states and 10852 transitions. [2022-10-16 14:10:15,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-10-16 14:10:15,511 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:15,512 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:15,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 14:10:15,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-10-16 14:10:15,727 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting vub300_deleteErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_usb_fill_bulk_urb_12Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_usb_fill_bulk_urb_12Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 278 more)] === [2022-10-16 14:10:15,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:15,728 INFO L85 PathProgramCache]: Analyzing trace with hash 764664081, now seen corresponding path program 1 times [2022-10-16 14:10:15,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:15,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117485571] [2022-10-16 14:10:15,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:15,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:16,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:10:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:16,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:16,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:10:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:16,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-16 14:10:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:16,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:16,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:10:16,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:16,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-16 14:10:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:16,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:16,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:10:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:16,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 14:10:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:16,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:16,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-16 14:10:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:16,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 14:10:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:16,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:16,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 14:10:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:16,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:16,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-10-16 14:10:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:16,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 14:10:16,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:16,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:17,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:10:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:17,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 14:10:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:17,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 14:10:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:17,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-16 14:10:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:17,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-16 14:10:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:17,095 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-10-16 14:10:17,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:17,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117485571] [2022-10-16 14:10:17,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117485571] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:17,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396098548] [2022-10-16 14:10:17,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:17,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:17,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:17,098 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:10:17,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:10:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:17,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 2115 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 14:10:17,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:18,206 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 16 proven. 23 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-10-16 14:10:18,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:10:18,910 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-10-16 14:10:18,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396098548] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:10:18,910 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:10:18,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 18 [2022-10-16 14:10:18,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824638705] [2022-10-16 14:10:18,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:10:18,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 14:10:18,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:18,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 14:10:18,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:10:18,913 INFO L87 Difference]: Start difference. First operand 7785 states and 10852 transitions. Second operand has 19 states, 18 states have (on average 10.777777777777779) internal successors, (194), 13 states have internal predecessors, (194), 11 states have call successors, (55), 12 states have call predecessors, (55), 6 states have return successors, (47), 12 states have call predecessors, (47), 11 states have call successors, (47)